Kenji Tsukamoto

Title: Kenji Tsukamoto: Innovator in Electric Power Assist Devices for Bicycles

Introduction

Kenji Tsukamoto is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of electric power assist devices for bicycles. With a total of 10 patents to his name, Tsukamoto's innovations are paving the way for advancements in cycling technology.

Latest Patents

Among his latest patents is an electric power assist device designed for bicycles. This device features a housing that attaches to the frame structure of a bicycle, housing an electric motor. The rotating member is rotatably supported by the housing and is driven by the electric motor, connecting to the crankshaft/crankarm of the bicycle in a torque transmitting relationship. Additionally, it includes a rotational angle sensor to detect the rotational angle of the electric motor or the rotating member. The control unit manages the operation of the electric motor based on the detected rotational angle. Another notable patent is a power assist device that incorporates a dynamic brake controller, which stops the current supply from the battery to the electric motor when certain crank rotational angles are reached. This device also features a pedaling force estimator that estimates the force applied to the pedals based on reverse current detected by a current sensor.

Career Highlights

Kenji Tsukamoto is currently employed at Honda Motor Co., Ltd., where he continues to innovate and develop new technologies. His work has significantly impacted the cycling industry, enhancing the experience for cyclists through improved electric power assist systems.

Collaborations

Tsukamoto has collaborated with notable coworkers, including Satoshi Honda and Yoshihiro Namiki. Their combined expertise has contributed to the successful development of advanced bicycle technologies.

Conclusion

Kenji Tsukamoto's contributions to electric power assist devices for bicycles exemplify his innovative spirit and dedication to enhancing cycling technology. His patents reflect a commitment to improving the cycling experience for users worldwide.