Ageo, Japan

Yoichi Shibayama

This inventor holds 1 USPTO granted patent. Top assignee: Bridgestone Cycle Co., Ltd.. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoichi Shibayama. Retrieved from https://idiyas.com/inventor/yoichi-shibayama

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: The Innovative Contributions of Yoichi Shibayama

Introduction

Yoichi Shibayama is a notable inventor based in Ageo, Japan. He has made significant contributions to the field of mechanical engineering, particularly with his innovative designs in speed change devices. His work exemplifies the spirit of innovation that drives advancements in technology.

Latest Patents

Shibayama holds a patent for a stepless speed change device. This device features an input shaft and an output shaft, incorporating a planetary carrier at the inner end of the input shaft. It includes a sun gear at the inner end of the output shaft, which meshes with planet gears carried on the planetary carrier. Additionally, an internal gear meshes with the planet gears to form a planetary gear system. The device also consists of a driven rotor, which is rotatable about the input shaft and takes the form of a hollow cylinder with flanges at both ends. This rotor is concentrically connected to the internal gear. Furthermore, a driving rotor encloses the driven rotor and includes two members connected to the input shaft on both sides of the driven rotor. An intermediate friction transmission ring, whose eccentricity is adjustable, is interposed between the flanges of the driven rotor and the two members of the driving rotor to transmit rotating power effectively.

Career Highlights

Shibayama is currently employed at Bridgestone Cycle Co., Ltd., where he continues to innovate and develop new technologies. His work has contributed to the advancement of mechanical systems, particularly in the cycling industry.

Collaborations

Throughout his career, Shibayama has collaborated with notable colleagues, including Kikuzo Takamiya and Yoshitaka Tamura. These collaborations have fostered a creative environment that encourages the exchange of ideas and technological advancements.

Conclusion

Yoichi Shibayama's contributions to the field of mechanical engineering, particularly through his patented stepless speed change device, highlight his innovative spirit and dedication to advancing technology. His work at Bridgestone Cycle Co., Ltd. and collaborations with esteemed colleagues further emphasize his impact in the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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