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[1] Akihiro Miki, Shun Hasegawa, Sota Yuzaki, Yuta Sahara, Yoshimoto Ribayashi, Kento Kawaharazuka, Kei Okada:
Exploring the proprioceptive potential of joint receptors using a biomimetic robotic joint,
Scientific Reports, Vol.16, No.1, pp.4724, Nature Publishing Group, 2026. DOI:10.1038/s41598-025-27311-3
[2] Kazuki Sugihara, Moju Zhao, Takuzumi Nishio, Kei Okada, Masayuki Inaba:
Design, Control, and Motion Strategy for DELTA: Transformable Multilink Multirotor for Air-Ground Hybrid Locomotion and Manipulation,
IEEE Transactions on Robotics, Vol.42, No., pp.2765-2785, 2026. DOI:10.1109/TRO.2026.3706558
[3] Shun Hasegawa, Ayaha Nagata, Aoi Nakane, Masahiro Matsumura, Kei Okada:
Development and Application of Wide-Range Precise Proximity Sensor,
Journal of Robotics and Mechatronics, Vol.38, No.3, pp.729-739, 2026. DOI:10.20965/jrm.2026.p0729
[4] Ayano Miyamichi Moju Zhao, Kazuki Sugihara, Junichiro Sugihara, Masanori Konishi, Kunio Kojima, Kei Okada, Masayuki Inaba:
Flexible Morphing Aerial Robot with Inflatable Structure for Perching-Based Human Robot Interaction,
Soft Robotics Journal, Vol.13, No.3, pp.377-404, 2026. DOI:10.1177/21695172261425911
[5] Akihiro Miki, Shun Hasegawa, Yoshimoto Ribayashi, Yuta Sahara, Kento Kawaharazuka, Kei Okada:
Robotic physical comparison of biologically motivated and counterfactual sensory arrangements using biomimetic skin,
Bioinspiration & Biomimetics, Vol.21, No.4, pp.046009, IOP Publishing, 2026. DOI:10.1088/1748-3190/ae7786
[6] Kazuki Sugihara, Kei Okada:
Anti-Gravity Walking by a Flying Humanoid Robot Via Thrust-Rate Input Whole-Body Model Predictive Control,
IEEE Robotics and Automation Letters, Vol., No., , 2026. DOI:10.1109/LRA.2026.3734888

[7] Shintaro Inoue, Kento Kawaharazuka, Temma Suzuki, Sota Yuzaki, Kei Okada:
WiXus: A Wheeled-Legged Robot with Wire-Driven Environmental Utilizing to Integrate Mobility and Manipulation,
in Proceedings of The 2026 IEEE International Conference on Robotics and Automation, pp.7807-7814, 2026.
[8] Ayano Miyamichi, Kei Okada:
Perching-Based Haptic Guidance for Physical Human-Robot Interaction with Aerial Robots,
in Proceedings of The 2026 IEEE International Conference on Robotics and Automation, pp.13374-13381, 2026.

[9] Michitoshi Tsubaki, Akihiro Miki, Shun Hasegawa, Kento Kawaharazuka, Kei Okada:
Evaluation of the Physical Invasiveness of Robotic Suturing Using a Multilayer Strain-Gauge-Embedded Skin Phantom,
in The 65th Annual Conference of Japanese Society for Medical and Biological Engineering, P2-41, 2026. DOI:
[10] Kento Kawaharazuka, Keita Yoneda, Takahiro Hattori, Shintaro Inoue, Kei Okada:
Analysis of Various Manipulator Configurations Based on Multi-Objective Black-Box Optimization,
in The 40th Annual Conference of the Japanese Society for Artificial Intelligence, 2026, 2G4-OS-47a-06, 2026. DOI: URL:
[11] Takuma Hiraoka, Naoki Hiraoka, Kunio Kojima, Kei Okada:
Locomanipulation Planning with Completeness using Feasibility Check via Random Sampling and Contact Graph Search,
in The 40th Annual Conference of the Japanese Society for Artificial Intelligence, 2026, 3Yin-A-33, 2026. DOI: URL:
[12] Michitoshi Tsubaki, Tasuku Makabe, Soonhyo Kim, Shun Hasegawa, Kento Kawaharazuka, Kei Okada:
Development of Detachable Multi-Tool Modules for Surgery on General-Purpose Robots,
in 2026 JSME Conference on Robotics and Mechatronics, 2A2-A12, 2026. DOI: URL:
[13] Jun Oda, Keita Yoneda, Temma Suzuki, Akihiro Miki, Kento Kawaharazuka, Kei Okada:
Design and Development of a Cat Robot with a Wire-Driven Underactuated Spring Multi-Joint Spine,
in 2026 JSME Conference on Robotics and Mechatronics, 2A1-L07, 2026. DOI: URL:
[14] Shunnosuke Yoshimura, Kento Kawaharazuka, Kei Okada:
Monolithic Multi-Material 3D Printing of a Musculoskeletal Shoulder Complex,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-S04, 2026. DOI: URL:
[15] Ayano Miyamichi Kazuki Sugihara, Kei Okada:
Haptic Directional Guidance Using Thrust for a Perching Deformable Aerial Robot,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-C08, 2026. DOI: URL:
[16] Issei Yuda, Kunio Kojima, Iori Yanokura, Kei Okada:
Desing of the wearer-inclusive upper-limb robot suit with parallel link and monocoque,
in 2026 JSME Conference on Robotics and Mechatronics, 2A1-J12, 2026. DOI: URL:
[17] Tasuku Makabe, Iori Yanokura, Kei Okada:
Design Method for Uniquely Reconstructable Bus-Connected Hierarchical Connectable Components,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-P08, 2026. DOI: URL:
[18] Temma Suzuki, Kento Kawaharazuka, Kei Okada:
Achieving High-Platform Jump-On Motion with LELIEL, a Parallel Wire-Driven Monopedal Jumping Robot,
in 2026 JSME Conference on Robotics and Mechatronics, 2A1-L04, 2026. DOI: URL:
[19] Iori Yanokura, Tasuku Makabe, Naoya Yamaguchi, Hiroya Sato, Kento Matsuo, Aoi Nakane, Kei Okada:
IMU-based Joint Stiffness Identification for Reconfigurable Modular Robot Arms via Differentiable Kinematics,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-P10, 2026. DOI: URL:
[20] Ting Hin Lo, Iori Yanokura, Tasuku Makabe, Kei Okada:
Towards an open design system for robots,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-P05, 2026. DOI: URL:
[21] Yoshiki Obinata, Kei Okada:
Declarative Service Robot Task Creation System based on Direct Manipulation and Language-Based Physical Space Property Manipulation,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-X05, 2026. DOI: URL:
[22] Kazuki Sugihara, Kei Okada:
Generating Thrust-Assisted Anti-Gravity Walking for a Flying Humanoid via Torque-Thrust Integrated Trajectory Optimization,
in 2026 JSME Conference on Robotics and Mechatronics, 2A2-U06, 2026. DOI: URL:
[23] Kento Kawaharazuka, Yoshiki Obinata, Hirokazu Ishida, Jihoon Oh, Temma Suzuki, Shintaro Inoue, Keita Yoneda, Ayumu Iwata, Kei Okada:
MEVION: Open-Source Data Collection System for Powerful and High-Speed Manipulation,
in 2026 JSME Conference on Robotics and Mechatronics, 1A1-T02, 2026. DOI: URL:
[24] Kento Kawaharazuka, Shintaro Inoue, Yuta Sahara, Keita Yoneda, Temma Suzuki, Kei Okada:
Three-Dimensional Wire Arrangement Design Optimization Considering Wire Crossings for Tendon-driven Robots,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-F01, 2026. DOI: URL:
[25] Eri Sawada, Kazuki Sugihara, Ayano Miyamichi, Kunio Kojima, Kei Okada:
Control and Application of a Morphing Aerial Robot With Thruster-Integrated Flexible Continuum Links,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-C11, 2026. DOI: URL:
[26] Tomoka Sawada, Iori Yanokura, Shun Hasegawa, Tasuku Makabe, Kei Okada:
Robot-Assisted Support Practices in Educational Facilities for Children’ Ibasho: A Participant Observation Study,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-L04, 2026. DOI: URL:
[27] Ayumu Iwata, Kento Kawaharazuka, Keita Yoneda, Takahiro Hattori, Kei Okada:
Waypoint-Guided Learning of Nonlinear Hook Trajectories for Brachiation on a Life-Sized Dual-Arm Robot,
in 2026 JSME Conference on Robotics and Mechatronics, 1A1-B07, 2026. DOI: URL:
[28] Ryota Ishikawa, Keitaro Murakami, Masanori Konishi, Jin Hirai, Takuma Hiraoka, Toma Arimura, Kunio Kojima, Kei Okada:
Development of a rideable mobile manipulator equipped with a hyper-redundant tail shared for manipulation, transport, and mobility assistance,
in 2026 JSME Conference on Robotics and Mechatronics, 1A1-I09, 2026. DOI: URL:
[29] Toma Arimura, Kunio Kojima, Takuma Hiraoka, Masanori Konishi, Jin Hirai, Hiromi Tada, Ryota Ishikawa, Kei Okada:
Design and Development of a Self-Reconfigurable Manipulator Equipped with an External-Driven Docking Mechanism,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-P06, 2026. DOI: URL:
[30] Hiromi Tada, Takuma Hiraoka, Jin Hirai, Kunio Kojima, Kei Okada:
Trajectory Optimization for Dynamic Whole-Body Motion of a Humanoid Exploiting Speed-Torque Characteristic Switching of a Variable Chain Motor,
in 2026 JSME Conference on Robotics and Mechatronics, 2A2-T01, 2026. DOI: URL:
[31] Akihiro Miki, Shun Hasegawa, Yoshimoto Ribayashi, Kento Kawaharazuka, Kei Okada:
Development of a Biomimetic Tissue-Structured Joint with Muscle-, Joint-, and Cutaneous-Like Receptors,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-R04, 2026. DOI:
[32] Shun Kaneko, Shunnosuke Yoshimura, Akihiro Miki, Kento Kawaharazuka, Kei Okada:
Design of a Facial Robot with a Musculoskeletal and Skin Structure and Reproduction of Basic Facial Expression Movements,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-Q04, 2026. DOI: URL:
[33] Shun Hasegawa, Kei Okada:
Palpation Behavior Verifying Cutting Completion for Mouse Cranium Cutting and Removal in Cranial Window Surgery,
in 2026 JSME Conference on Robotics and Mechatronics, 1P1-G12, 2026. DOI: URL:
[34] Yoshimoto Ribayashi, Akihiro Miki, Kento Kawaharazuka, Kei Okada:
Evaluation of Elastic Energy Utilization in Cyclic Movements of the Body Using a Wire-Wound Muscle-Tendon Complex Drive,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-R01, 2026. DOI:
[35] Jin Hirai, Takuma Hiraoka, Hiromi Tada, Kunio Kojima, Kei Okada:
Joint and Wheel Trajectory Planning for Omnidirectional Locomotion of a Wheel-Legged Robot with Leg Structures Capable of a Continuously Variable Support Region,
in 2026 JSME Conference on Robotics and Mechatronics, 2A1-A02, 2026. DOI: URL:
[36] Ayaha Nagata, Shun Hasegawa, Kei Okada:
Contact Detection for a Stuffed Robot Using Optical Proximity Sensors Placed Beneath the Skin with Inward-Facing Detection Surfaces,
in 2026 JSME Conference on Robotics and Mechatronics, 2A2-F08, 2026. DOI: URL:
[37] Ayaha Nagata, Shun Hasegawa, Kei Okada:
Application of a Universal Dense Tactile Sheet to a Stuffed Robot for Human-Robot Physical Interaction Detection,
in 2026 JSME Conference on Robotics and Mechatronics, 2A1-D03, 2026. DOI: URL:
[38] Shintaro Inoue, Kento Kawaharazuka, Temma Suzuki, Sota Yuzaki, Kei Okada:
Spatial Mobility and Object Manipulation by WiXus, a Wire-Driven Robot with Wheeled-Legs and Environmental Anchoring,
in 2026 JSME Conference on Robotics and Mechatronics, 1A2-H08, 2026. DOI: URL:
[39] Shintaro Inoue, Kento Kawaharazuka, Kei Okada:
An Overview and a Structuring Framework for Wire-Driven Robots Based on Environment-Tool-Body Connectivity,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-G06, 2026. DOI: URL:
[40] Takahiro Hattori, Kento Kawaharazuka, Kei Okada:
Reconfigurable Wire-Driven Robot Architecture with Shared Actuators,
in 2026 JSME Conference on Robotics and Mechatronics, 2P1-F03, 2026. DOI: URL:
[41] Sota Yuzaki, Temma Suzuki, Hiromi Tada, Masanori Konishi, Kento Kawaharazuka, Kei Okada:
Development of the High-Voltage GaN FET Motor Driver LunaDrive for Flat BLDC Motors Toward High-Speed Operation of High-Power Robots,
in 2026 JSME Conference on Robotics and Mechatronics, 1A1-I02, 2026. DOI: URL:
[42] Keita Yoneda, Kento Kawaharazuka, Kei Okada:
Efficient Curriculum Reinforcement Learning with Adaptive Assistance Force Based on Success Rate and Its Application to Quadruped Robots,
in 2026 JSME Conference on Robotics and Mechatronics, 2A1-L10, 2026. DOI: URL:
[43] Jun Oda, Keita Yoneda, Takahiro Hattori, Temma Suzuki, Akihiro Miki, Kento Kawaharazuka, Kei Okada:
Reinforcement Learning and Cat-Righting Motion Generation for a Quadruped Robot with a Wire-Underactuated Multi-Joint Spine,
in The 44th Annual Conference on Robotics Society of Japan, 2B2-04, 2026. DOI:
[44] Seongmin Ye, Michitoshi Tsubaki, Tomoka Sawada, Ayaha Nagata, Yoshiki Obinata, Shun Hasegawa, Kei Okada:
Proposal of a Contextual Gaze Presentation System for Improving Trust in Human-Robot Collaboration,
in The 44th Annual Conference on Robotics Society of Japan, 3C3-06, 2026. DOI:
[45] Akihiro Miki, Shun Hasegawa, Yoshimoto Ribayashi, Kento Kawaharazuka, Kei Okada:
Multisensory Integration and Proprioception in a Tissue-Biomimetic Joint with Embedded Muscle-, Joint-, and Cutaneous-Like Receptors,
in The 44th Annual Conference on Robotics Society of Japan, 2B3-01, 2026. DOI:
[46] Takahiro Hattori, Kento Kawaharazuka, Kei Okada:
Design of a Wire-Driven Tool Changer with External Motor and Modularity,
in The 44th Annual Conference on Robotics Society of Japan, 2I2-01, 2026. DOI:
[47] Xi Chen, Yoshiki Obinata, Samuel Bustamante, Kei Okada:
A Preliminary Study on Memory-Guided Object Search and Retrieval for a Mobile Manipulator,
in The 44th Annual Conference on Robotics Society of Japan, 3A1-05, 2026. DOI:
[48] Junyoung Choi, Yoshiki Obinata, Shun Hasegawa, Michitoshi Tsubaki, Soonhyo Kim, Kento Kawaharazuka, Kei Okada:
Feasibility Study of Agricultural Tool Manipulation by a Humanoid Robot toward Automation of Shine Muscat Cultivation,
in The 44th Annual Conference on Robotics Society of Japan, 1B4-06, 2026. DOI:
[49] Kazuki Sugihara, Kei Okada:
Anti-Gravity Walking by a Flying Humanoid Robot via Thrust-Rate Input Whole-Body Model Predictive Control,
in The 44th Annual Conference on Robotics Society of Japan, 1J2-01, 2026. DOI:
[50] Yoshimoto Ribayashi, Temma Suzuki, Akihiro Miki, Kento Kawaharazuka, Kei Okada:
Analysis of the Frequency Response Characteristics of Wire-Wound Muscle-Tendon Complex Drive,
in The 44th Annual Conference on Robotics Society of Japan, 2B2-07, 2026. DOI:
[51] Kazuki Tokunaga, Kazuki Sugihara, Eri Sawada, Ayano Miyamichi, Iori Yanokura, Kunio Kojima, Kei Okada:
Compensation Flight Control Based on a Ceiling Effect Model Considering Changes in Inter-Rotor Distance for a Multilinked Aerial Robot,
in The 44th Annual Conference on Robotics Society of Japan, 1J1-02, 2026. DOI:
[52] Ayumu Iwata, Kento Kawaharazuka, Kei Okada:
強化学習の運動生成を用いたブラキエーションに適した猿人類ロボットの身体設計評価,
in The 44th Annual Conference on Robotics Society of Japan, 1G3-03, 2026. DOI:
[53] Tomoka Sawada, Iori Yanokura, Shun Hasegawa, Tasuku Makabe, Kei Okada:
An Ethnographic Research Methodology for an Emic Understanding of Social Robot Use in Care Settings: Proposal and Practice,
in The 44th Annual Conference on Robotics Society of Japan, 3C4-02, 2026. DOI:
[54] Ayaha Nagata, Tomoka Sawada, Yoshiki Obinata, Shun Hasegawa, Iori Yanokura, Kei Okada:
Exploring Open-Ended Narrative Experiences with Character Robots: An Observational Study of Participant Behavior,
in The 44th Annual Conference on Robotics Society of Japan, 3C4-03, 2026. DOI:
[55] Michitoshi Tsubaki, Kento Kawaharazuka, Shun Hasegawa, Kei Okada:
医療応用を見据えた事例検索型説明可能模倣学習の検証,
in The 44th Annual Conference on Robotics Society of Japan, 3B1-05, 2026. DOI:
[56] Toma Arimura, Kunio Kojima, Takuma Hiraoka, Masanori Konishi, Jin Hirai, Hiromi Tada, Ryota Ishikawa, Kei Okada:
Development of a High-Strength, Easy-to-Operate Docking Mechanism for Self-Reconfigurable Robots Using Spring-Loaded Screw Fastening and Staged Alignment,
in The 44th Annual Conference on Robotics Society of Japan, 1F2-04, 2026. DOI:
[57] Kento Kawaharazuka, Keita Yoneda, Shintaro Inoue, Temma Suzuki, Jun Oda, Kei Okada:
MEVIUS2: 板金溶接とマルチモーダル認識による実用的なオープンソース四脚歩行ロボット,
in The 44th Annual Conference on Robotics Society of Japan, 1G3-08, 2026. DOI:
[58] Shintaro Inoue, Kento Kawaharazuka, Keita Yoneda, Sota Yuzaki, Temma Suzuki, Kei Okada:
身体間ワイヤで接続された2台の脚車輪ロボットTwinXによる分離合体を利用した身体再構成,
in The 44th Annual Conference on Robotics Society of Japan, 1F2-02, 2026. DOI:
[59] Shintaro Inoue, Kento Kawaharazuka, Keita Yoneda, Sota Yuzaki, Temma Suzuki, Kei Okada:
身体間ワイヤで接続された2台の脚車輪ロボットTwinXのワイヤ媒介操作,
in The 44th Annual Conference on Robotics Society of Japan, 1F2-03, 2026. DOI:
[60] Iori Yanokura, Tomoka Sawada, Ting Hin Lo, Tasuku Makabe, Kei Okada:
Automated Design of Character Robots from Text Input,
in The 44th Annual Conference on Robotics Society of Japan, 1F1-04, 2026. DOI:
[61] Ryo Koyama, Iori Yanokura, Kei Okada:
Front-Loading of Laboratory Automation SI by Operation Interface Description: A Collaborative Development Process for Operation Objects, Operation Mechanisms, and Systems,
in The 44th Annual Conference on Robotics Society of Japan, 2M1-02, 2026. DOI:
[62] Sota Yuzaki, Temma Suzuki, Kento Kawaharazuka, Kei Okada:
高電圧モータドライバLunaDriveを用いたQDDサーボモータの動作領域拡張,
in The 44th Annual Conference on Robotics Society of Japan, 3J3-03, 2026. DOI:
[63] Keita Yoneda, Kento Kawaharazuka, Kei Okada:
Wrench Augmented Reinforcement Learning for Task-Agnostic Motion Aquisition in Legged Robots,
in The 44th Annual Conference on Robotics Society of Japan, 1G3-06, 2026. DOI:
[64] Yoshiki Obinata, Samuel Bustamante, Kei Okada:
System for Storing Operation Histories and Task Episodes to Support the Proposal and Specification of Tasks for Daily-Life Assistance Robots,
in The 44th Annual Conference on Robotics Society of Japan, 3N3-05, 2026. DOI:
[65] Shunnosuke Yoshimura, Kento Kawaharazuka, Kei Okada:
部分一体印刷と数珠状ワイヤ経路構造によるワイヤ駆動型人体模倣肩・上腕・近位前腕構造の構成法,
in The 44th Annual Conference on Robotics Society of Japan, 3J2-02, 2026. DOI:
[66] Tomoka Sawada, Kei Okada:
Staff Practices in Supporting Children's 'Ibasho' in Educational Support Settings: A Qualitative Analysis of Staff-Child Interactions Based on Participant Observation,
in 2026 Annual Meeting of the Japanese Association of Educational Psychology Conference, PG58, 2026. DOI: URL:

[67] Jin Hirai, Takuma Hiraoka, Masanori Konishi, Hiromi Tada, Kunio Kojima, Kei Okada:
Development of Adaptive-Limb Transformable Robot for Portable and Replaceable End-Effectors with Compact Lock-Spin Mechanisms,
IEEE Robotics and Automation Society (RAS) Japan Joint Chapter Young Award (in ICRA2026), 2026.06.
[68] Ayano Miyamichi, Kei Okada:
Perching-Based Haptic Guidance for Physical Human-Robot Interaction with Aerial Robots,
IEEE Robotics and Automation Society (RAS) Japan Joint Chapter Young Award (in ICRA2026), 2026.06.
[69] Akihiro Miki:
A Biomimetic Approach to Internal Model Development Using a Tissue-Structured Multisensory Robot,
Neuro-inspired Computation Summer Course 2026 Poster Award, 2026.07.25.
[70] Akihiro Miki, Yuya Nagamatsu, Masahiro Bando, Kento Kawaharazuka, Yasunori Toshimitsu, Naoki Hiraoka, Kei Okada, Masayuki Inaba:
Development of a Hardware-abstracted Device Control Platform that Enables Handling of a Variety of Robots while Providing High Responsivity,
The Robotics Society of Japan 40th Best Paper Award, 2026.09.03.
[71] Temma Suzuki, Kento Kawaharazuka, Kei Okada, Masayuki Inaba:
Study and Experimental Verification of a Dynamical Model for the Jumping Performance of Parallel Wire-driven Leg,
The Robotics Society of Japan 40th Best Paper Award, 2026.09.03.
[72] Kazuki Sugihara, Moju Zhao, Kei Okada:
Torque-Thrust Integrated Inverse Dynamics for Rotor Distributed Manipulator toward Dynamic Deformation,
, 2026.09.03.
[73] Kento Kawaharazuka:
MEVITA: E-Commerceにより誰でも簡単に構築可能なオープンソース二足歩行ロボット,
The Robotics Society of Japan 4th Young Researcher Excellent Presentation Award, 2026.09.03.
[74] Ayumu Iwata:
等身大双腕ロボットの強化学習による鉄棒大車輪動作の獲得,
The Robotics Society of Japan 5th Young Researcher Excellent Presentation Award, 2026.09.03.

[75] Kunio Kojima:
Reinforcement Learning Tutorial for Legged Robot Control: Basic Theory and Practical Introduction,
Humanoid Virtual Athletics Challenge 2026 Spring Meeting, 2026.4.25. URL:https://ytazz.github.io/vnoid/hvac2026tutorial.html