Saitama, Japan

Tohru Takeda

This inventor holds 2 USPTO granted patents. Top assignees: Bridgestone Cycle Co., Ltd., Maeda Industries, Ltd.. Active years: 1990-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tohru Takeda. Retrieved from https://idiyas.com/inventor/tohru-takeda-ypo2k8d7

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 = 2.4

ph-index = 2

Forward Citations = 17(Granted Patents)


Location History:

  • Ageo, JP (1990)
  • Saitama, JP (1995)

Company Filing History:


Years Active: 1990-1995

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2 patents (USPTO):Explore Patents

Title: Tohru Takeda: Innovator in Bicycle Technology

Introduction

Tohru Takeda is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of bicycle technology, holding two patents that enhance the efficiency and operability of bicycle speed change mechanisms. His work reflects a commitment to innovation and improvement in cycling performance.

Latest Patents

Takeda's latest patents include a Bicycle Speed Change Assembly and a Stepless Speed Change Device. The Bicycle Speed Change Assembly is designed to achieve a chain shift operation with minimal guide pulley travel distance, thereby improving speed change efficiency and operability while preventing the assembly from protruding sideward. The Stepless Speed Change Device features an adjustable eccentric cam assembly, a rotatable carrier, and multiple friction pieces arranged in two rows. This innovative design allows for smooth and efficient speed changes, enhancing the overall cycling experience.

Career Highlights

Throughout his career, Takeda has worked with prominent companies such as Bridgestone Cycle Co., Ltd. and Maeda Industries, Ltd. His experience in these organizations has contributed to his expertise in bicycle technology and innovation.

Collaborations

Takeda has collaborated with notable coworkers, including Kunitoshi Kozakae and Yoshihisa Iwasaki. These partnerships have likely fostered a creative environment that encourages the development of cutting-edge bicycle technologies.

Conclusion

Tohru Takeda's contributions to bicycle technology through his innovative patents demonstrate his dedication to enhancing cycling performance. His work continues to influence the industry and inspire future innovations.

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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