Inasa-gun, Japan

Tatsuo Yamakawa

This inventor holds 1 USPTO granted patent. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Kabushiki Kaisha F. C. C.. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Yamakawa. Retrieved from https://idiyas.com/inventor/tatsuo-yamakawa

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 = 5.0

ph-index = 1

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1998

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1 patent (USPTO):Explore Patents

Title: The Innovations of Tatsuo Yamakawa

Introduction

Tatsuo Yamakawa is a notable inventor hailing from Inasa-gun, Japan. He has made significant contributions to the field of engineering, particularly in the development of innovative mechanical components. His work has been recognized for its practical applications and effectiveness in reducing mechanical vibrations.

Latest Patents

One of Yamakawa's key inventions is a torque damper. This device includes damper springs that are accommodated in a channel defined around the outer periphery of a transmitting member, with guide sheets sandwiched in between. Notches are provided in the outer peripheral wall of the channel, allowing radially outward directed positioning claws on the guide sheets to engage in these notches. The design also features retaining claws on guide plates that cover the outer surfaces of the damper springs. This innovative structure effectively inhibits the circumferential and axial movements of the guide sheets, preventing vibrations and wear in the channel. Yamakawa holds 1 patent for this invention.

Career Highlights

Throughout his career, Tatsuo Yamakawa has worked with prominent companies in the automotive and engineering sectors. He has been associated with Kabushiki Kaisha F.C.C. and Honda Giken Kogyo Kabushiki Kaisha, where he contributed to various projects that enhanced mechanical performance and reliability.

Collaborations

Yamakawa has collaborated with several talented individuals in his field. Notable coworkers include Kazuhiro Nakajima and Makoto Amano, who have also made significant contributions to engineering and innovation.

Conclusion

Tatsuo Yamakawa's work exemplifies the spirit of innovation in engineering. His contributions, particularly in the development of the torque damper, have had a lasting impact on the industry. His collaborations and career achievements further highlight his importance as an inventor.

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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