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  1. Article

    Open Access

    A single motor-driven continuum robot that can be designed to deform into a complex shape with curvature distribution

    This paper proposes a method to deform a continuum robot into a complex shape with distributed curvature using a single motor drive. This continuum robot can be deformed to a desired shape by placing tendon gu...

    Daiki Yoshikawa, Masahiro Shimizu, Takuya Umedachi in ROBOMECH Journal (2023)

  2. No Access

    Chapter

    Soft Manipulation and Locomotion

    Soft mechanisms bring a new twist to traditional robotics challenges of object gras**, manipulation, and locomotion. Soft robotic hands are a topic of growing industrial application. A major example of a sof...

    Shinichi Hirai, Ryuma Niiyama, Taro Nakamura, Takuya Umedachi in The Science of Soft Robots (2023)

  3. No Access

    Chapter and Conference Paper

    Conversion of Elastic Energy Stored in the Legs of a Hexapod Robot into Propulsive Force

    The conversion of elastic energy due to ground reaction force into propulsive force can help increase the locomotion speed of a legged robot. Many legged robots inspired by animals have been developed, which u...

    Atsushi Kaneko, Masahiro Shimizu, Takuya Umedachi in Biomimetic and Biohybrid Systems (2022)

  4. No Access

    Chapter and Conference Paper

    Evaluation of 3D-Bioprinted Materials and Culture Methods Toward Actuator Driven by Skeletal Muscle Cells

    Soft actuators powered by skeletal muscle cells provide robots flex...

    Naoki Yamada, Masahiro Shimizu, Takuya Umedachi in Biomimetic and Biohybrid Systems (2019)

  5. No Access

    Chapter

    Modelling Oscillatory Behaviour of Slime Mould

    Behavioral diversity is one of the universal features for all animals but missing in artificial machines. Behavioral diversity enables animals to explore alternative behaviors and avoid to getting stuck in a d...

    Takuya Umedachi, Akio Ishiguro in Advances in Physarum Machines (2016)

  6. No Access

    Chapter and Conference Paper

    A Swimming Machine Driven by the Deformation of a Sheet-Like Body Inspired by Polyclad Flatworms

    A swimming robot driven by the deformation of a sheet-like body was developed, inspired by polyclad flatworms. The robot consists of a soft oval rubber sheet and three motors. Two motors operate the lateral fl...

    Toshiya Kazama, Koki Kuroiwa, Takuya Umedachi in Biomimetic and Biohybrid Systems (2013)

  7. No Access

    Chapter and Conference Paper

    A True-Slime-Mold-Inspired Fluid-Filled Robot Exhibiting Versatile Behavior

    Behavioral diversity is one essential feature of living systems in order to exhibit adaptive behavior in hostile and dynamically changing environments. However, classical engineering approaches strive to avoid...

    Takuya Umedachi, Ryo Idei, Akio Ishiguro in Biomimetic and Biohybrid Systems (2012)

  8. No Access

    Article

    Fully decentralized control of a soft-bodied robot inspired by true slime mold

    Animals exhibit astoundingly adaptive and supple locomotion under real world constraints. In order to endow robots with similar capabilities, we must implement many degrees of freedom, equivalent to animals, i...

    Takuya Umedachi, Koichi Takeda, Toshiyuki Nakagaki, Ryo Kobayashi in Biological Cybernetics (2010)

  9. No Access

    Chapter

    A Modular Robot Driven by Protoplasmic Streaming

    Self-reconfigurable robots are expected to exhibit various interesting abilities, such as adaptivity and fault tolerance. These remarkable abilities originate from the fact that their mechanical systems intrin...

    Takuya Umedachi, Taichi Kitamura, Koichi Takeda in Distributed Autonomous Robotic Systems 8 (2009)