Hiraku Sakamoto, Ph.D.


Journal Publication:

[j33] D. You, F. Xi, H. Herdian, X. Wang, Y. Narukiyo, A. A. Fadila, H. Lee, M. Ide, S. Kato, Z. Li, Y. Wang, D. Awaji, J. Pang, H. Sakamoto, K. Okada, A. Shirane, "A Ka-Band 64-Element Deployable Active Phased-Array TX on a Flexible Hetero Segmented Liquid Crystal Polymer for Small Satellites," in IEEE Microwave and Wireless Technology Letters, vol. 33, no. 6, pp. 903-906, June 2023, doi: 10.1109/LMWT.2023.3264810.

[j32] D. You, X. Wang, H. Herdian, X. Fu, H. Lee, M. Ide, C. D. Gomez, Z. Li, J. Mayeda, D. Awaji, J. Pang, H. Sakamoto, K. Okada, A. Shirane, "A Ka-Band Deployable Active Phased Array Transmitter Fabricated on 4-Layer Liquid Crystal Polymer Substrate for Small-Satellite Mount," IEEE Access, Vol. 11, pp. 69522-69535, 2023, doi: 10.1109/ACCESS.2023.3291814.

[j31] Y. Takahashi, H. Sakamoto, S. Sakai, "Kinematics Control of Electromagnetic Formation Flight Using Angular-Momentum Conservation Constraint," Journal of Guidance, Control, and Dynamics, Vol. 45, No. 2, Feb. 2022, pp. 280-295. https://doi.org/10.2514/1.G005873

[j30] S. Kadonishi, H. Sakamoto, M. Okuma, "Deployment behavior of planar gossamer space structures made of plain-woven textile," Acta Astronautica, Vol. 190, Jan. 2022, pp. 334-341. https://doi.org/10.1016/j.actaastro.2021.09.037

[j29] K. Omoto, T. Tomura, H. Sakamoto, "Proof-of-Concept on Misalignment Compensation for 5.8-GHz-Band Reflectarray Antennas by Varactor Diodes," IEEE Access, Vol. 9, Apr. 2021, pp. 54101-54108. https://doi.org/10.1109/ACCESS.2021.3071090

[j28] S. Kadonishi, H. Sakamoto, M. Okuma, "Compact Packaging of Planar Gossamer Space Structures Using Textile Membranes," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 19, No. 2, 2021, pp. 245-251. https://doi.org/10.2322/tastj.19.245

[j27] K. Ikeya, H. Sakamoto, H. Nakanishi, H. Furuya, T. Tomura, R. Ide, R. Iijima, Y. Iwasaki, K. Ohno, K. Omoto, T. Furuya, T. Hayashi, M. Kato, S. Koide, M. Kurosaki, Y. Nakatsuka, S. Okuyama, R. Kashiyama, J. Nakamura, W. Nio, T. Tsunemitsu, Y. Yamazaki, K. Taga, B. Hohmann, T. Aamamoto, T. Chubachi, S. Tamura, H. Okada, A. Watanabe, N. Kawabata, T. Hori, H. Ito, T. Kuratomi, Y. Shimoda, N. Hidaka, K. Watanabe, A. Torisaka, M. Yamazaki, "Significance of 3U CubeSat OrigamiSat-1 for space demonstration of multifunctional deployable membrane," Acta Astronautica, Vol. 173, Aug. 2020, pp. 363-377.

[j26] A. Doi, Y. Kono, K. Kimura, S. Nakaharaba, T. Oyama, N. Okada, Y. Satou, K. Yamashita, N. Matsumoto, M. Baba, D. Yasuda, S. Suzuki, Y. Hasegawa, M. Honma, H. Tanaka, K. Ishimura, Y. Murata, R. Shimomukai, T. Tachi, K. Saito, N. Watanabe, N. Bando, O. Kameya, Y. Yonekura, M. Sekido, Y. Inoue, H. Sakamoto, N. Kogiso, Y. Shoji, H. Ogawa, K. Fujisawa, M. Narita, H. Shibai, H. Fuke, K. Ueharai, S. Koyama, "A balloon-borne very long baseline interferometry experiment in the stratosphere: Systems design and developments," Advances in Space Research, Vol. 63, No. 1, Jan. 2019, pp. 779-793. 

[j25] A. Torisaka, D. Hayashi, S. Kawasaki, N. Nishii, Y. Terada, Y. Yokoyama, H. Sakamoto, "Development of shape monitoring system using SMA dipole antenna on a deployable membrane structure," Acta Astronautica, Vol. 160, July 2019, pp. 147-154.

[j24] M. Walker, M. Okuma, H. Sakamoto, "Attenuation of tall flexible structures using longitudinal moving mass: Moving finite element method," Noise and Vibration Worldwide, Volume: 48 issue: 9-10, pp.119-131, 2017.

[j23] K. Lee, A. Aihara, G. Puntsagdash, T. Kawaguchi, H. Sakamoto, M. Okuma, "Feasibility study on a strain based deflection monitoring system for wind turbine blades," Mechanical Systems and Signal Processing, Vol. 82, Jan. 1, 2017, pp.117-129.

[j22] A. Aihara, T. Kawaguchi, N. Miki, T. Azami, H. Sakamoto, M. Okuma, "A Vibration Estimation Method for Wind Turbine Blades," Experimental Mechanics, pp.1-12, First Online, May 23, 2017.

[j21] K. Gotou, H. Sakamoto, A. Inagaki, H. Tanaka, K. Ishimura, M. Okuma, "Actuator Design for Space Smart Reflector to Reduce Thermal Distortion," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 14, No. ists30, 2016, pp. Pc_25-Pc_31.

[j20] K. Ishimura, T. Kawachi, H. Tanaka, H. Sakamoto, K. Tanaka, H. Yamakawa, "Artificial Lagrange Points for Spacecraft with a Tethered Anchor," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 14, No. ists30, 2016, pp. Pd_69-Pd_73.

[j19] N. Kogiso, T. Okabe, H. Sakamoto, H. Tanaka, "Finite Element Updating Method for High-Precision Space Reflector Model Using Multiobjective Optimization," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 14, No. ists30, 2016, pp. Pc_7-Pc_12.

[j18] H. Tanaka, H. Sakamoto, A. Inagaki, K. Ishimura, A. Doi, Y. Kono, T. Oyama, K. Watanabe, Y. Oikawa, T. Kuratomi, "Development of a smart reconfigurable reflector prototype for an extremely high-frequency antenna," Journal of Intelligent Material Systems and Structures, Vol 27, No. 6, 2016, pp. 764-773.

[j17] T. Nishizawa, H. Sakamoto, M. Okuma, H. Furuya, Y. Sato, N. Okuizumi, Y. Shirasawa, O. Mori, "Evaluation of Crease Stiffness on Out-of-plane Stiffness of Solar Sails," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_107-Pc_113.

[j16] Y. Satou, H. Furuya, H. Sakamoto, Y. Shirasawa, O. Mori, N. Okuizumi, M. C. Natori, "Wrapping Experiments of Piecewise Straight Fold Membrane for Large Solar Sail," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_49-Pc_54.

[j15] H. Sakamoto, S. Kadonishi, Y. Satou, H. Furuya, Y. Shirasawa, N. Okuizumi, O. Mori, H. Sawada, J. Matsumoto, Y. Miyazaki, M. Okuma, "Development of Repeatable Storage Method for a Large Solar Sail," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_75-Pc_82.

[j14] K. Shintaku, S. Matunaga, G. Ono, H. Sakamoto, T. Satoh, O. Mori, Y. Shirawasa, N. Okuizumi, "Experiment and Analysis of Spinning Membrane Deployment Focusing on Shape Imbalance for Solar Sail," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_55-Pc_62.

[j13] H. Sakamoto, T. Miura, K. Kawaguchi, T. Kamiya, H. Akagi, K. Akiyama, Y. Okada, N. Kohtake, S. Shirasaka, "Systems Engineering Education through Students f CanSat Project Interacting with Young Professional Engineers," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Tt_11-Tt_17.

[j12] H. Sakamoto, M. C. Natori, S. Kadonishi, Y. Satou, Y. Shirasawa, N. Okuizumi, O. Mori, H. Furuya, M. Okuma, "Folding Patterns of Planar Gossamer Space Structures Consisting of Membranes and Booms", Acta Astronautica, Vol. 94, Issue 1, Jan.-Feb. 2014, pp. 34-41. Get full paper from online journal

[j11] H. Sawada, Y. Shirasawa, O. Mori, N. Okuizumi, Y. Miyazaki, S. Matunaga, H. Furuya, H. Sakamoto, M. Natori, Y. Tsuda, "On-orbit Result and Analysis of Sail Deployment of World's First Solar Power Sail IKAROS," Journal of Space Technology and Science, Vol. 27, No. 1, 2013, pp. 54-68.

[j10] O. Mori, Y. Shirasawa, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, H. Furuya, S. Matunaga, M. Natori, T. Saiki, R. Funase, Y. Mimasu, J. Kawaguchi, "Deployment and Steering Dynamics of Spinning Solar Sail "IKAROS"," Journal of Aerospace Engineering, Sciences and Application, Vol. IV, No. 4, Oct.-Dec. 2012, pp. 79-96. Available online

[j9] Y. Shirasawa, O. Mori, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, S. Matunaga, H. Furuya, J. Kawaguchi, "Evaluation of Membrane Dynamics of IKAROS Based on Flight Result and Simulation Using Multi-Particle Model," Transactions of Japan Society for Aeronautical and Space Sciences, Space Technology Japan, Vol. 10, 2012, pp. Po_4_21-Po_4_26. Get full paper from online journal

[j8] H. Sakamoto, Y. Miyazaki, and O. Mori, "Transient Dynamic Analysis of Gossamer Appendage Deployment Using Nonlinear Finite Element Method," Journal of Spacecraft and Rockets, Vol. 48, No. 5, Sept.-Oct. 2011, pp. 881-890. Get full paper from online journal

[j7] O. Mori, H. Sawada, F. Hanaoka, J. Kawaguchi, Y. Shirasawa, M. Sugita, Y. Miyazaki, H. Sakamoto, and R. Funase, "Development of Deployment System for Small Size Solar Sail Mission," Transactions of Japan Society for Aeronautical and Space Sciences, Space Technology Japan, Vol. 7, 2009, pp. Pd_87-Pd_94. Get full paper from online journal

[j6] H. Sakamoto, Y. Miyazaki, and K. C. Park, "Finite Element Modeling of Solar Sail Deformation under Solar Radiation Pressure," Journal of Spacecraft and Rockets. Vol. 44, No. 3, May-Jun. 2007, pp. 514-521. Get full paper from online journal

[j5] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Evaluation of Membrane Structure Designs Using Boundary Web Cables for Uniform Tensioning," Acta Astronautica. Vol. 60, 2007, pp. 846-857. Get full paper from online journal

[j4] H. Sakamoto, and K. C. Park, "Localized Vibration Isolation Strategy for Low-Frequency Excitations in Membrane Space Structures," Journal of Vibration and Acoustics: Transactions of the ASME, Vol. 128, Dec. 2006, pp. 790-797. Get full paper from online journal

[j3] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Distributed and Localized Active Vibration Isolation in Membrane Structures," Journal of Spacecraft and Rockets. Vol. 43, No. 5, Sept.-Oct. 2006, pp. 1107-1116. Get full paper from online journal

[j2] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Dynamic Wrinkle Reduction Strategies for Cable Suspended Membrane Structures," Journal of Spacecraft and Rockets, Vol. 42, No. 5, Sept.-Oct. 2005, pp. 850-858. Get full paper from online journal

[j1] H. Sakamoto, M. C. Natori, and Y. Miyazaki, "Deflection of Multi-Cellular Inflatable Tubes for Redundant Space Structures," Journal of Spacecraft and Rockets, Vol. 39, No. 5, Sept.-Oct. 2002, pp. 695-700. Get full paper from online journal

 

Review Articles:

[r2] M. Gardill and H. Maune (ed.), "Moving Toward an MTT-S Payload in Space: Progress and Status of the MTT-Sat Challenge," IEEE Microwave Magazine, vol. 23, no. 10, pp. 59-67, Oct. 2022, doi: 10.1109/MMM.2022.3188125.

[r1] M. C. Natori, H. Sakamoto, N. Katsumata, H. Yamakawa, N. Kishimoto, "Conceptual Model Study Using Origami for Membrane Space Structures - a Perspective of Origami-Based Engineering," Mechanical Engineering Reviews, Vol. 2, No. 1, 2015, pp. 1-15.


Books:

[b2] H. Sakamoto et al., "Deployment Motions and Forces," Testing Large Ultra-Lightweight Spacecraft (Edited by J. A. Banik, C. H. Jenkins), Chapter 4, American Institute of Aeronautics and Astronautics, 2017.

[b1] Y. Shirasawa, O. Mori, N. Okuizumi, Y. Satou, A. Yamasaki, H. Furuya, T. Nishizawa, H. Sakamoto, G. Ono, "Evaluation of Sail Mechanics of IKAROS on its Slow-Spin and Reverse-Spin Operation," Advances in Solar Sailing, (Edited by M. Macdnald), Springer, 2014, pp. 57-74.

 

Conference Papers:

[c108] M. Moritani, H. Sakamoto, "Practical Application and Evaluation of System Complexity Index in the Development Process of Nano-Satellites," No. 2023-t-03, 34th International Symposium on Space Technology and Science (ISTS), Kurume, Fukuoka, Japan, June 3-9, 2023.

[c107] K. Nagai, H. Sakamoto, T. Tomura, S. Tamura, Y. Takeda, "Evaluation of Deployed Shape of Two-layer Space Membrane Array Antenna," No. 2023-c-12, 34th International Symposium on Space Technology and Science (ISTS), Kurume, Fukuoka, Japan, June 3-9, 2023.

[c106] S. Kanamaru, S. Takeda, Y. Saito, Y. Takahashi, Y. Dongwon, M. Moritani, S. Koike, A. Shirane, H. Sakamoto, "Improvement of Beam Scanning Accuracy by Shape Estimation of Space Deployable Array-Antennas," No. 2023-c-31, 34th International Symposium on Space Technology and Science (ISTS), Kurume, Fukuoka, Japan, June 3-9, 2023.

[c105] D. P. Mitchao, H. Sakamoto, "Thermal Design Exploration For Active Phased Array Antennas On Space Deployable Membranes," No. 2023-i-06, 34th International Symposium on Space Technology and Science (ISTS), Kurume, Fukuoka, Japan, June 3-9, 2023.

[c104] T. Oshino, M. Moritani, S. Koike, Y. Takeda, S. Tamura, K. Nagai, S. Kanamaru, T. Sato, G. Nakayama, H. Kurokawa, Y. Mitsumoto, A. Ochi, D. Mitchao, T. Tomura, H. Sakamoto, "Deployment of Membrane Array Antenna in Space Using 3U CubeSat, OrigamiSat-2," No. 2023-f-48, 34th International Symposium on Space Technology and Science (ISTS), Kurume, Fukuoka, Japan, June 3-9, 2023.

[c103] X. Wang, D. You, X. Fu, H. Lee, Z. Li, D. Awaji, J. Pang, A. Shirane, H. Sakamoto, K. Okada, "A Flexible Implementation of Ka-Band Active Phased Array for Satellite Communication," 2022 IEEE/MTT-S International Microwave Symposium - IMS 2022, Denver, CO, USA, 2022, pp. 753-756, doi: 10.1109/IMS37962.2022.9865668.

[c102] T. Tomura, H. Sakamoto, Y. Takeda, G. Nakayama, T. Yanagi, M. Moritani, S. Koike, Y. Takeda, S. Tamura, K. Nagai, S. Kanamaru, "Two-Layer Pop-Up Origami Deployable Membrance Reflectarray Antenna Stowed in 1U CubeSat," Small Satellite Conference, No. SSC22-WKVI-05, Utah State University, Logan, UT, 2022. https://digitalcommons.usu.edu/smallsat/2022/all2022/82/

[c101] Y. Takeda, S. Takeda, S. Koike, M. Fujita, Y. Takahashi, M. Moritani, H. Hagiwara, D. You, A. Shirane, H. Sakamoto, "Thermal Control of Array Antenna Transmitters Attached on Space Membrane Structures," No. 2022-i-08, 33rd International Symposium on Space Technology and Science (ISTS), Online, Mar. 4, 2022.

[c100] S. Koike, M. Moritani, M. Ishiwata, S. Tamura, K. Nagai, H. Sakamoto, H. Nakanishi, T. Tomura, H. Furuya, A. Watanabe, "Revival and Successive Operation of 3U CubeSat OrigamiSat-1 with Multifunctional Deployable Membrane," No. 2022-f-18, 33rd International Symposium on Space Technology and Science (ISTS), Online, Mar. 1, 2022.

[c99] H. Hagiwara, H. Sakamoto, S. Fukuda, "SAR Image Registration over Forested Areas Using Linear Features Detection," P3-22, International Conference on Emerging Technologies for Communications, Institute of Electronics, Information and Communication Engineers, Dec. 2021, pp. 1-4. https://doi.org/10.34385/proc.68.P3-22

[c98] H. Sakamoto, H. Furuya, H. Nakanishi, A. Watanabe, N. Kawabata, T. Hori, H. Ito, T. Kuratomi, Y. Shimoda, N. Hidaka, K. Watanabe, "On-Orbit Demonstration of Innovative Multifunctional Membrane Structure for Ultra-Lightweight Solar Arrays and Array Antennas by 3U CubeSat OrigamiSat-1," SSC21-VIII-06, Small Satellite Conference, Aug. 2021, pp. 1-10. https://digitalcommons.usu.edu/smallsat/2021/all2021/190/

[c97] T. Kusumoto, M. Matsushita, Y. Takao, A. K. Sugihara, O. Mori, Y. Sato, Y. Miyazaki, N. Okuizumi, S. Kawasaki, A. Watanabe, H. Ito, T. Hori, K. Nakamura, C. Hatakeyama, T. Kuhara, S. Yamada, M. Fujita, Y. Nada, G. Ohira, M. Yamakawa, K. Namiki, Y. Kimishima, K. Ikeda, K. Sugiura, H. Takahashi, A. Fujita, Y. Tsukamoto, S. Takeda, H. Sakamoto, A. Shirane, K. Okada, "Development of a Multifunctional Lightweight Membrane with a High Specific Power Generation Capacity," SSC21-WKIV-01, Small Satellite Conference, Aug. 2021, pp. 1-9. https://digitalcommons.usu.edu/smallsat/2021/all2021/250/

[c96] D. You, Y. Takahashi, S. Takeda, M. Moritani, H. Hagiwara, S. Koike, H. Lee, Y. Wang, Z. Li, J. Pang, A. Shirane, H. Sakamoto, K. Okada, "A Ka-Band 16-Element Deployable Active Phased Array Transmitter for Satellite Communication," IEEE MTT-S International Microwave Symposium (IMS), Jun. 2021, pp. 799-802. https://ieeexplore.ieee.org/abstract/document/9574795

[c95] M. Kato, H. Sakamoto, T. Tomura, M. Okuma, "Phase Adjustment Algorithm for Deformation Compensation of Nonflat Reflectarray Antenna," International Symposium on Antennas and Propagation (ISAP2020), Virtual conference, Jan. 25-28, 2021. https://ieeexplore.ieee.org/document/9391208

[c94] Y. Takahashi, H. Sakamoto, S. Sakai, "Simultaneous Control of Relative Position and Absolute Attitude for Electromagnetic Spacecraft Swarm," AIAA 2021-1104, AIAA Guidance, Navigation, and Control Conference (GN&C), SciTech2021, Virtual event, Jan. 11-15&19-21, 2021. https://arc.aiaa.org/doi/10.2514/6.2021-1104

[c93] T. Tomura, K. Omoto, H. Sakamoto, "Simulation of a 5.8-GHz-band active reflectarray for non-flat structures," IEEE Int. Symp. Antennas Propag. (AP-S), July 2020.

[c92] (poster) R. Masiero, B. Hohmann, H. Sakamoto, "Experimental Evaluation and Multi-scale Analysis of Woven Textile Membranes for Innovative Space Deployable Structures," Aerospace Europe Conference 2020, Bordeaux, France, Feb. 25-28, 2020.

[c91] K. Ikeya, H. Sakamoto, H. Chen, K. Ho, "Integrated Orbit Design and Network-Based Optimization of Interplanetary Mission Architectures," AIAA 2020-0072, AIAA Spacecraft Structures Conference, SciTech2020, Orlando, FL, USA, Jan. 6-10, 2020.

[c90] B. Hohmann, H. Sakamoto, "Bending Stiffness Estimation of Creased Textile Membrane for Space Structure Design," AIAA 2020-1899, AIAA Spacecraft Structures Conference, SciTech2020, Orlando, FL, USA, Jan. 6-10, 2020.

[c89] K. Omoto, T. Tomura, H. Sakamoto, J. Hirokawa, M. Okuma, "Basic Study on Deformation Reconfiguration Technology for 5.8-GHz-band Reflectarray Antennas," 42nd PIERS, Xiamen, China, Dec. 17-20, 2019. (2nd Best Student Paper Award)

[c88] T. Tomura, K. Omoto, H. Sakamoto, J. Hirokawa, "Design and Validation of a 5.8-GHz-band Active Reflectoarray on Nonflat Structures for CubeSats," 40th ESA Antenna Workshop, Noordwijk, Netherlands, Oct. 8-10, 2019.

[c87] K. Ikeya, H. Sakamoto, et al., "Significance of 3U CubeSat OrigamiSat-1 for Space Demonstration of Multifunctional Deployable Membrane," No. IAC-19.B4.6B.14, 70th International Astronautical Congress, Washington, D.C., USA, Oct. 21-25, 2019.

[c86] S. Kadonishi, H. Sakamoto, M. Okuma, "Compact Packaging of Planar Gossamer Space Structures Using Textile Membranes," No. 2019-k-42, 32nd International Symposium on Space Technology and Science (ISTS), Fukui, Fukui, Japan, June 15-21, 2019.

[c85] T. Chubachi, H. Furuya, H. Sakamoto, "Deployability of Boom-Membrane Integrated Structure on OrigamiSat-1," No. 2019-k-41, 32nd International Symposium on Space Technology and Science (ISTS), Fukui, Fukui, Japan, June 15-21, 2019.

[c84] T. Zengo, M. Yamazaki, H. Sakamoto, K. Shimazu, "Model-Based Systems Engineering Education with Hands-on Activities Using HEPTA-Sat," No. 2019-f-95, 32nd International Symposium on Space Technology and Science (ISTS), Fukui, Fukui, Japan, June 15-21, 2019.

[c83] B. Hohmann, H. Sakamoto, M. Okuma, "Influence of Storage Configurations on the Deployment Behavior of Boom-Membrane Integrated Space Structures," AIAA 2019-1016, AIAA Spacecraft Structures Conference, SciTech2019, San Diego, California, USA, Jan. 7-11, 2019.

[c82] A. Torisaka, D. Hayashi, S. Kawasaki, N. Nishii, Y. Terada, S. Yokoyama, H. Sakamoto, "Development of Shape Monitoring System Using SMA Dipole Antenna on a Deployable Membrane Structure," IAC-18-C2.5.2, 69th International Astronautical Congress (IAC), Bremen, Germany, Oct. 1-5, 2018, pp. 1-13.

[c81] T. Chubachi, H. Furuya, H. Sakamoto, "Undesired Equilibrium Configurations of Boom-Membrane Integrated Structure during Deploying Motion," AIAA-2018-0695, AIAA Spacecraft Structures Conference, SciTech2018, Kissimmee, Florida, Jan. 8-12, 2018, pp. 1-21.

[c80] R. Kashiyama, H. Sakamoto, M. Okuma, H. Tanaka, K. Ishimura, "Athermalization of Deformable Reflector's Actuators for Radio Astronomy Satellites," AIAA-2018-1199, AIAA Spacecraft Structures Conference, SciTech2018, Kissimmee, Florida, Jan. 8-12, 2018.

[c79] T. Amamoto, H. Sakamoto, H. Furuya, N. Okuizumi, A. Watanabe, N. Kawabata, "Modeling of Composite Booms f Deployment Dynamics under Microgravity Based on Ground Tests," AIAA-2018-1435, AIAA Spacecraft Structures Conference, SciTech2018, Kissimmee, Florida, Jan. 8-12, 2018.

[c78] B. Hohmann, H. Sakamoto, H. Furuya, N. Okuizumi, "Verification of Numerical Deployment Analysis for Membrane Structures Using Micro-gravity Experiment," AIAA-2018-1436, AIAA Spacecraft Structures Conference, SciTech2018, Kissimmee, Florida, Jan. 8-12, 2018.

[c77] Y. Terada, H. Sakamoto, M. Okuma, "Characteristics of Deployable Planar Origami Structures with Partial Constraints," AIAA-2018-2205, AIAA Spacecraft Structures Conference, SciTech2018, Kissimmee, Florida, Jan. 8-12, 2018.

[c76] H. Sakamoto, H. Nakanishi, H. Furuya, M. Yamazaki, Y. Miyazaki, A. Watanabe, K. Watanabe, A. Torisaka-Kayaba, "Development of CubeSat OrigamiSat-1 for Space Demonstration of Deployable Membrane Structure Technologies," 2017-f-023, 34th International Symposium on Space Technology and Science (ISTS), Ehime, Japan, Jun. 3-9, 2017.

[c75] H. Furuya , H. Sakamoto , A. Watanabe, "Deployment Properties of Boom-Membrane Integrated Space Structures," 2017-c-46, 34th International Symposium on Space Technology and Science (ISTS), Ehime, Japan, Jun. 3-9, 2017.

[c74] H. Furuya, H. Sakamoto, Y. Satou, T. Yokomatsu, K. Yashima, T. Chubachi, A. Watanabe, "Boom/Membrane Integrated Deployable Space Structures for Small Satellites," 4th International Symposium on Solar Sailing, Kyoto, Japan, Jan. 17-20, 2017, pp. 1-4.

[c73] H. Nakanishi, H. Sakamoto, H. Furuya, M. Yamazaki, Y. Miyazaki, A. Watanabe, K. Watanabe, A. Torisaka-Kayaba, M. Oda, "Development of Nano-Satellite OrigamiSat-1with Highly Functional Deployable Membrane," 4th International Symposium on Solar Sailing, Kyoto, Japan, Jan. 17-20, 2017, pp. 1-4.

[c72] K. Saito, N. Okuizumi, H. Sakamoto, J. Kikuchi, J. Matsumoto, H. Furuya, O. Mori, "Experimental Research on Roll-up Storage Method for a Large Solar Sail", 4th International Symposium on Solar Sailing, Kyoto, Japan, Jan.17-20, 2017, pp. 1-5.

[c71] Y. Shimoda, K. Watanabe, N. Sakamoto, T. Kuratomi, N. Hidaka, M. Ogawa, H. Sakamoto, H. Nakanishi, "Development of Stereo Camera System for Accurate Observation of Deployable Membranes Onboard CubeSat," AIAA-2017-0167, AIAA SciTech2017, Grapevine, TX, Jan. 9-13, 2017.

[c70] N. Okuizumi, Y. Satou, O. Mori, H. Sakamoto, H. Furuya, "Investigation of the Deformation and Stiffness of Spinning Solar Sail Membrane of IKAROS", AIAA-2017-1113, AIAA SciTech2017, Grapevine, TX, Jan. 9-13, 2017, pp. 1-6.

[c69] H. Furuya, K. Yashima, T. Yokomatsu, H. Sakamoto, A. Watanabe, "Micro-gravity Testing of Boom-Membrane Integrated Deployable Structures for Micro-satellites", AIAA-2017-0618, AIAA SciTech2017, Grapevine, TX, Jan. 9-13, 2017, pp. 1-5.

[c68] H. Sakamoto, H. Tanaka, K. Ishimura, A. Doi, Y. Kono, N. Matsumoto, K. Kimura, "Shape-Control Experiment of Space Reconfigurable Reflector Using Antenna Reception Power," AIAA-2016-0703, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c67] T. Nishizawa, H. Sakamoto, M. Okuma, "Shape Estimation and Design Methods for Membrane Structures to Achieve Appropriate Flatness," AIAA-2016-1219, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c66] Y. Shimoda, K. Watanabe, N. Sakamoto, T. Kuratomi, Y. Naito, T. Nishizawa, H. Sakamoto, H. Nakanishi, M. Yamazaki, "Development of Stereo Camera System for Accurate Observation of Large Deployable Membranes in Orbit," AIAA-2016-1473, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c65] H. Furuya, T. Yokomatsu, H. Sakamoto, H. Satou, "Deployment Properties with Gravity Compensation Devices for Boom-Membrane Integrated Wrapped Structures," AIAA-2016-2167, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c64] H. Sakamoto, H. Tanaka, K. Ishimura, A. Doi, Y. Kono, "Shape Control Experiment of Space Reflector for Extremely High Frequency Radio Astronomy," No. 070, 26th International Conference on Adaptive Structures and Technologies, October 14-16, 2015.

[c63] K. Hayasaki, H. Sakamoto, H. Tanaka, K. Ishimura, M. Okuma, "Design and Analysis of Smart Space Reflectors Driven by Piezoelectric Actuators," No. P29, 26th International Conference on Adaptive Structures and Technologies, October 14-16, 2015.

[c62] T. Okabe, N. Kogiso, H. Sakamoto, H. Tanaka, "Finite Element Updating for High Precision Space Reflector Model Using Multiobjective Optimization," 2015-c-33, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c61] H. Furuya, Y. Satou, H. Sakamoto, M. Takai, N. Okuizumi, M. C. Natori, A. Torisaka, T. Yokomatsu, H. Kurashige, A. Watanabe, "Deployment Experiments of Wrapping Fold Boom-Membrane Integrated Space Structures for De-Orbiting Satellites," 2015-c-45, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c60] K. Gotou, H. Sakamoto, A. Inagaki, H. Tanaka, K. Ishimura, M. Okuma, "Actuator Design for Space Smart Reflector to Reduce Thermal Distortion," 2015-c-49, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c59] K. Ishimura, T. Kawachi, H. Tanaka, H. Sakamoto, K. Tanaka, H. Yamakawa, "Orbit Design and Control of Satellite around the L2 Point Using Tethered Anchor System," 2015-d-31, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c58] H. Sakamoto, H. Nakanishi, M. Yamazaki, Y. Miyazaki, H. Furuya, A. Watanabe, K. Watanabe, M. Oda, "CubeSat Design for Space Demonstration of Deployable Membrane Structure Technologies," 2015-f-74, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c57] H. Sakamoto, Y. Nakamura, "Lessons Learned in Student CanSat Development Contest Envisioning Future Engineering Systems," 2015-t-19, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c56] H. Sakamoto, H. Furuya, Y. Satou, N. Okuizumi, M. Takai, M. C. Natori, "Wrapping Fold and Deployment Characteristics of Boom-Membrane Integrated Space Structures," AIAA 2015-0680, presented at 2nd AIAA Spacecraft Structures Conference, SciTech2015, Kissimmee, Florida, Jan. 5-9, 2015.

[c55] Y. Satou, O. Mori, N. Okuizumi, Y. Shirasawa, H. Furuya, H. Sakamoto, "Deformation Properties of Solar Sail IKAROS Membrane with Nonlinear Finite Element Analyses," AIAA 2015-0436, presented at 2nd AIAA Spacecraft Structures Conference, SciTech2015, Kissimmee, Florida, Jan. 5-9, 2015.

[c54] A. Inagaki, H. Sakamoto, H. Tanaka, K. Ishimura, M. Okuma, "Experimental Study of Reflector Shape Control under Various Thermal Conditions," AIAA 2015-1399, presented at 2nd AIAA Spacecraft Structures Conference, SciTech2015, Kissimmee, Florida, Jan. 5-9, 2015.

[c53] H. Furuya, Y. Satou, H. Sakamoto, M. C. Natori, "Deployment Dynamics of Membrane-Boom Wrapped Structures," IAC-14-C2.3.10, presented at 65th International Astronautical Congress, Toronto, Sept. 29-Oct. 4, 2014, pp.1-6.

[c52] H. Furuya, Y. Satou, H. Sakamoto, M. C. Natori, N. Okuizumi, "Deployment Experiment of Boom-Membrane Integrated Wrapped Structure," A-17 , presented at 24th Workshop on Astrodynamics and Flight Mechanics, Sagamihara, Kanagawa, Jul. 28-29, 2014.

[c51] Y. Satou, N. Okuizumi, H. Sakamoto, H. Furuya, G. Ono, Y. Shirasawa, O. Mori, "Nonflatness of Solar Sail Membrane Predicted by Nonlinear Finite Element Method," AIAA-2014-0832, presented at 2014 AIAA Science and Technology Forum and Exposition (SciTech 2014), National Harbor, MD, USA, Jan. 13-17, 2014.

[c50] H. Sakamoto, H. Furuya, Y. Satou, M. C. Natori, A. Watanabe, N. Kawabata, R. Sakai, N. Okuizumi, O. Mori, Y. Shirasawa, M. Takai, N. Katsumata, A. Torisaka, R. Funase, "Origami-based Membrane Storage and Deployment Technology for De-orbiting Satellites," No. IAC-13.B4.6A.4, presented at 64th International Aeronautical Congress, Beijing, China, Sept. 23-27, 2013.

[c49] H. Sakamoto, Y. Nakamura, S. Narita, Y. Kakehashi, R. Konishi, S. Shirasaka, N. Kohtake, "Education of Mission Conception and SE Methodology through Simulated-Satellite Design Contest for Students," No. TS-03-4, presented at Asia-Pacific Council on Systems Engineering Conference (APCOSEC) 2013, Kanagawa, Japan, Sept. 8-11, 2013.

[c48] D. Pastor, H. Sakamoto, X. Shuyin, M. Okuma, "Numerical Simulation of Gossamer Structures Consisting of Membranes and Booms," No. A3-5, presented at 5th Multidisciplinary International Student Workshop in Tokyo Tech, Tokyo, Japan, Aug. 8-9, 2013.

[c47] M. C. Natori, N. Katsumata, H. Yamakawa, H. Sakamoto, and N. Kishimoto, "Conceptual Model Study Using Origami for Membrane Space Structures", DETC2013-13490, ASME 2013 International Design Engineering Technical Conferences & Computers and and Information in Engineering Conference (IDETC/CIE 2013), Portland, OR, USA, Aug. 4-7, 2013.

[c46] Y. Satou, N. Okuizumi, G. Ono, H. Furuya, H. Sakamoto, Y. Shirasawa, O. Mori, "Nonlinear Finite Element Simulations for Deployed Configuration of Solar Sail "IKAROS"," B-22, presented at 23rd Workshop on Astrodynamics and Flight Mechanics, Sagamihara, Kanagawa, Jul. 29-30, 2013.

[c45] M.C. Natori, N. Katsumata, H. Yamakawa, A. Watanabe, N. Kawabata, N. Okuizumi, O. Mori, Y. Shirasawa, H. Sakamoto, and H. Furuya, "Model Study of Membrane Space Structures Based on a Stepwise Deployment Concept," 2013-c-55, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c44] K. Shintaku, S. Matunaga, G. Ono, O. Mori, Y. Shirawasa, T. Satoh, H. Sakamoto, N. Okuizumi, "Experiment and Analysis of Spinning Membrane Deployment Focusing on Shape Imbalance for Solar Sail," 2013-c-48, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c43] Y. Satou, H. Furuya, H. Sakamoto, Y. Shirawasa, O. Mori, N. Okuizumi, M. C. Natori, "Wrapping Experiments of Piecewise Straight Fold Membrane for Large Solar Sail," 2013-c-54, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c42] H. Sakamoto, T. Miura, K. Kawaguchi, T. Kamiya, H. Akagi, K. Akiyama, Y. Okada N. Kohtake, S. Shirasaka, "Systems Engineering Education through Students f CanSat Project Interacting with Young Professional Engineers," 2013-t-04, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c41] H. Sakamoto, S. Kadonishi, Y. Satou, H. Furuya, Y. Shirasawa, N. Okuizumi, O. Mori, H. Sawada, J. Matsumoto, Y. Miyazaki, M. Okuma, "Development of Repeatable Storage Method for a Large Solar Sail," 2013-c-53, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c40] T. Nishizawa, H. Sakamoto, M. Okuma, H. Furuya, Y. Satou, N. Okuizumi, Y. Shirawasa, O. Mori, "Evaluation of Crease Effects on Out-of-plane Stiffness of Solar Sails," 2013-c-52, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c39] H. Sakamoto, S. Kadonishi, Y. Satou, H. Furuya, Y. Shirasawa, N. Okuizumi, O. Mori, H. Sawada, J. Matsumoto, M. C. Natori, Y. Miyazaki, M. Okuma, "Repeatability of Stored Configuration of a Large Solar Sail with Non-negligible Thickness," AIAA 2013-1804, presented at 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, 8-11 April 2013, Boston, MA, USA.

[c38] H. Sakamoto, M. C. Natori, S. Kadonishi, M. Okuma, "Folding Patterns of Planar Gossamer Space Structures Consisting of Membranes and Booms," No. 63, 23rd International Conference on Adaptive Structures and Technologies, Nanjing, China, Oct. 11-13, 2012.

[c37] T. Ito, Y. Sugimoto, H. Sakamoto, N. Kohtake, S. Shirasaka, and S. Narita, "Lessons Learned in Systems Engineering Education for Students' CanSat Projects," UN/Japan Nano-Satellite Symposium, Nagoya, Japan, Oct. 10-13, 2012.

[c36] H. Sakamoto, N. Kogiso, H. Tanaka, K. Ishimura, and M. Okuma, "Finite-Element Model Updating for Highly Precise Tension-Stabilized Space Reflectors," AIAA 2012-1837, presented at 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, 23-26 April 2012, Honolulu, HI, USA.

[c35] H. Sakamoto, N. Kohtake, S. Shirasaka, K. Yamada, Y. Sudo, S. Toki, and Y. Kakehashi,, "Introduction of Systems Engineering to Cansat Project - Construction of PBL-type Educational Program -," ISTS 2011-t-14, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c34] K. Yamada, Y. Sudo, S. Toki, Y. Kakehashi, H. Sakamoto, N. Kohtake, and S. Shirasaka, "Practical Application of Systems Engineering to Cansat Project - Operation of PBL-type Educational Program in Seven Universities in Japan -," ISTS 2011-t-15, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c33] H. Sakamoto, Y. Okada, and N. Kogiso, "Finite Element Model Updating for Tension-Stabilized Flexible Space Structures," ISTS 2011-c-48, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c32] O. Mori, Y. Shirasawa, Y. Miyazaki, M. Hasome, Y. Tsuda, R. Funase, T. Saiki, R. Jifuku, H. Sawada, N. Okuizumi, and H. Sakamoto, "Attitude Control Dynamics of Spinning Solar Power Sail, IKAROS," ISTS 2011-d-03, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c31] Y. Miyazaki, H. Sakamoto, Y. Shirasawa, O. Mori, H. Sawada, M. Yamazaki, and IKAROS demonstration team, "Finite Element Analysis of Deployment of Sail Membrane of IKAROS," ISTS 2011-o-4-06v, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c30] Y. Shirasawa, O. Mori, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, S. Matunaga, H. Furuya, and J. Kawaguchi, "Evaluation of Membrane Dynamics of IKAROS Based on Flight Result and Simulation Using Multi-Particle Model," ISTS 2011-o-4-05v, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c29] H. Sawada, O. Mori, N. Okuizumi, Y. Shirasawa, Y. Miyazaki, M. Natori, S. Matunaga, H. Furuya, and H. Sakamoto, "Evaluation of Solar Power Sail Deployment Mechanism of IKAROS," ISTS 2011-o-4-04v, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c28] Y. Miyazaki, Y. Shirasawa, O. Mori, H. Sawada, N. Okuizumi, H. Sakamoto, S. Matunaga, H. Furuya, and M. C. Natori, "Conserving Finite Element Dynamics of Gossamer Structure and Its Application to Spinning Solar Sail "IKAROS"," AIAA 2011-2181, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c27] H. Sakamoto, Y. Shirasawa, H. Sawada, D. Haraguchi, and O. Mori, "A Spin-up Control Scheme for Contingency Deployment of the Sailcraft IKAROS," AIAA 2011-1892, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c26] Y. Shirasawa, O. Mori, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, H. Furuya, S. Matunaga, and M. C. Natori, "Analysis of Membrane Dynamics Using Multi-Particle Model for Solar Sail Demonstrator "IKAROS"," AIAA 2011-1890, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c25] N. Okuizumi, A. Muta, S. Matunaga, H. Sakamoto, Y. Shirasawa, and O. Mori, "Small-scale Experiments and Simulations of Centrifugal Membrane Deployment of Solar Sailcraft 'IKAROS'," AIAA 2011-1888, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c24] H. Sawada, O. Mori, N. Okuizumi, Y. Shirasawa, Y. Miyazaki, M. C. Natori, S. Matunaga, H. Furuya, and H. Sakamoto, "Mission Report on the Solar Power Sail Deployment Demonstration of IKAROS," AIAA 2011-1887, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c23] O. Mori, Y. Shirasawa, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, H. Furuya, S. Matunaga, M. C. Natori, and J. Kawaguchi, "Deployment and Steering Dynamics of Spinning Solar Sail eIKAROS," 21st International Symposium on Space Flight Dynamics, Sao Jose dos Campos, Brazil, Feb.28-March 4, 2011.

[c22] D. Haraguchi, H. Sakamoto, Y. Shirasawa, and O. Mori, gDesign criteria for spin deployment of gossamer structures considering nutation dynamics, h AIAA 2010-8072, presented at AIAA Guidance, Navigation, and Control Conference, Toronto, Ontario, Canada, Aug. 2-5, 2010.

[c21] Y. Shirasawa, O. Mori, N. Okuizumi, H. Sawada, Y. Miyazaki, H. Sakamoto, H. Furuya, and S. Matsunaga, gAnalysis on membrane deployment dynamics of solar sail using multi-particle model, h #A-8, presented at The 20th Workshop on JAXA Astrodynamics and Flight Mechanics, Japan, July 26-27, 2010.

[c20] H. Sakamoto, Y. Miyazaki, and O. Mori, "Transient dynamic analysis of solar sail deployment using nonlinear finite element method," AIAA 2010-2587, presented at 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Orlando, FL, USA, 12-15 April, 2010.

[c19] H. Sakamoto, Y. Miyazaki, and O. Mori, "Finite Element Dynamic Analysis of Solar Sail Deployment," ISTS 2009-c-32, presented at the 27th International Symposium on Space Technology and Science (ISTS), Tsukuba, Ibaraki, Japan, July 2009.

[c18] R. Kloepper, H. Sakamoto, and M. Okuma, "Experimental Identification of Rigid Body Inertia Properties Using Low-Frequency Unbalance Excitation," AIAA 2009-2530, 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Palm Springs, CA, USA, 4-7 May 2009. (presentation canceled)

[c17] N. Okuizumi, H. Sakamoto, A. Kitajima, and M. Sugita, "Centrifugal Deployment Experiments of a Square-shaped Solar Sail Membrane," #A-5, presented at 18th Workshop on JAXA Astrodynamics and Flight Mechanics, Sagamihara, Kanagawa, Japan, July 2008.

[c16]  O. Mori, H. Sawada, F. Hanaoka, J. Kawaguchi, Y. Shirasawa, M. Sugita, Y. Miyazaki, and H. Sakamoto, "Development of Deployment System for Small Size Solar Sail Mission," ISTS 2008-d-57, presented at 26th International Symposium on Space Technology and Science (ISTS), Hamamatsu, Shizuoka, Japan, June 2008.

[c15] H. Sakamoto, "Geometrically Nonlinear Analyses of Wave Propagation in Non-Uniformly Pre-Tensioned Membranes," ISTS 2008-c-12, presented at 26th International Symposium on Space Technology and Science (ISTS), Hamamatsu, Shizuoka, Japan, June 2008.

[c14]  C. P. Mandy, H. Sakamoto, A. Saenz-Otero, and D. Miller, "Implementation of Satellite Formation Flight Algorithms Using SPHERES Aboard the International Space Station," presented at 20th International Symposium on Space Flight Dynamics, Annapolis, MD, USA, 24-28 Sept., 2007.

[c13]  S. Mohan, H. Sakamoto, and D. Miller, "Formation Control and Reconfiguration Through Synthetic Imaging Formation Flying Testbed (SIFFT)" presented at SPIE Optics + Photonics Conference, Paper #6687-40, San Diego, CA, USA, 26-30 Aug., 2007.

[c12]  S. Kreissl, H. Sakamoto, K. C. Park, and H. Baier, "Design Improvements of a Solar Sail for Stiffness Increase and Passive Attitude Stabilization," AIAA 2007-1802, presented at 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Honolulu, HI, USA, 23-26 Apr. 2007.

[c11]  H. Sakamoto, K. C. Park, and Y. Miyazaki, "Effect of Static and Dynamic Solar Sail Deformation on Center of Pressure and Thrust Forces," AIAA 2006-6184, presented at AIAA Guidance, Navigation, and Control Conference and Exhibit, Keystone, CO, USA, 21-24 Aug. 2006.

[c10] H. Sakamoto, and K. C. Park, "Active Vibration Suppression Strategy for a Membrane Mirror Undergoing Slewing Maneuvers," AIAA 2006-1978, presented at 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Newport, RI, USA, 1-4 May 2006.

[c9] H. Sakamoto, and K. C. Park, "Theory and Application of Localized Vibration Control Strategy in Cable-Suspended Membrane Space Structures,"  IMECE2005-81597, presented at ASME International Mechanical Engineering Congress and Exposition, Orlando, FL, USA, 5-11 Nov. 2005.

[c8] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Distributed Localized Vibration Control of Membrane Structures Using Piezoelectric Actuators," AIAA 2005-2114, presented at 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Austin, TX, USA, 18-21 Apr. 2005.

[c7] H. Sakamoto, and K. C. Park, "Design Parameter Effects for Wrinkle Reduction in Membrane Space Structures," AIAA Paper 2005-1974, presented at 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Austin, TX, USA, 18-21 Apr. 2005.

[c6] H. Sakamoto, and K. C. Park, "Advenced Cable Boundary Layer Design in Membrane Structures for Dynamic Wrinkle Reduction," AIAA Paper 2005-1973, presented at 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Austin, TX, USA, 18-21 Apr. 2005.

[c5] H. Sakamoto, K. C. Park, and Miyazaki, "A New Membrane Structural Concept for Solar Sails and Reflectors," ISTS 2004-c-09, presented at 24th International Symposium on Space Technology and Science (ISTS), Miyazaki, Japan, May-June 2004.

[c4] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Dynamic Wrinkle Reduction Strategies for Cable Suspended Membrane Structures," AIAA Paper 2004-1581, presented at 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Palm Springs, CA, USA, 19-22 Apr. 2004.

[c3] H. Sakamoto, Y. Miyazaki, and K. C. Park, "Evaluation of Cable Suspended Membrane Structures for Wrinkle-Free Design," AIAA Paper 2003-1905, presented at 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Norfolk, VA, USA, 7-10 Apr. 2003.

[c2] H. Sakamoto, M. C. Natori, and Y. Miyazaki, "Deflection of Multi-Cellular Inflatable Tubes for Redundant Space Structures," AIAA Paper 2001-1617, presented at 42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Seattle, WA, USA, 16-19 Apr. 2001.

[c1] H. Sakamoto, K. Ishimura, M. C. Natori, and K. Higuchi, "Concepts of Redundant Space Structures Using Multi-Cellular Inflatable Elements," 11th International Conference on Adaptive Structures and Technologies (ICAST), Nagoya, Japan, 23-26 Oct. 2000.


Invited Lectures:

[s6] H. Sakamoto, "Development of Nano-Satellite OrigamiSat-1 for Space Demonstration of Deployable Array Antenna Structure," Research seminar on electronics and nanoengineering (ELEC-E9950), Aalto University, Espoo, Finland, Oct. 23, 2019.

[s5] H. Sakamoto, "Analysis and Flight Demonstration of Advanced Lightweight Space Structures," Multi Physics Workshop, Center for Aerospace Structures, University of Colorado at Boulder, CO, USA, Apr. 23-24, 2018.

[s4] (Panelist) H. Sakamoto, "Bridging the Gap from Technology to Spaceflight," Spacecraft Structures Lecture and Panel, AIAA Spacecraft Structures Conference, SciTech2017, Grapevine, Texas, Jan. 9, 2017.

[s3] H. Sakamoto, "CanSat's Structures and Deployables," The 4th CanSat Leader Training Program,Kanagawa, Japan, July 25, 2013.

[s2] H. Sakamoto, "CanSat's Structures and Deployables," The 3rd CanSat Leader Training Program, Tokyo, Japan, July 19, 2012.

[s1] H. Sakamoto, "Dynamics design of membrane space structures," Keynote speech at the 4th TokyoTech-POSTECH-KNU Joint Workshop on Mechanical Engineering, Korea, Oct. 24, 2008.


Dissertations:

[d3] Hiraku Sakamoto, Dynamic Wrinkle Reduction Strategies for Membrane Structures, Ph.D. thesis, University of Colorado at Boulder, Dec. 2004. (Advisor: K. C. Park) Final Defense Announcement (Abstract, Thesis committee)

[d2] Hiraku Sakamoto, Research on Redundancy Concept in Inflatable Space Structures, Master's thesis, University of Tokyo, Japan, Mar. 2001. (Advisor: M. C. Natori) (in Japanese)

[d1] Hiraku Sakamoto, Development of Soft Actuators Using Conducting Plastic Polyanilin, Bachelor's thesis, University of Tokyo, Japan, Mar. 1999. (Advisor: Masayuki Nakao) (in Japanese)

Hiraku Sakamoto's research website ©2019 H. Sakamoto