Study on how to remove the rope traction device on the overhead distribution lines - Jumpei Takemoto; Kenichi Oho; Ryoichi Kobayashi; Takeshi Ootawa; Takashi Tsubouchi (IEEE International Conference on Mechatronics, ICM 2021, Kashiwa, Japan, March 7-9, 2021, 2021)

Low Loss Optical Switch with Precisely Rotationally-Aligned Multi-Core Fiber Array - Osamu Shimakawa; Ryoichi Kobayashi; Hidehisa Tazawa (Optical Fiber Communications Conference and Exhibition, OFC 2020, San Diego, CA, USA, March 8-12, 2020, 2020)