Inazawa, Japan

Tomoyoshi Yamada

This inventor holds 3 USPTO granted patents. Top assignee: Toyoda Gosei Co., Ltd.. Active years: 1983-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomoyoshi Yamada. Retrieved from https://idiyas.com/inventor/tomoyoshi-yamada-4ijrgbbv

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.1

ph-index = 2

Forward Citations = 72(Granted Patents)


Location History:

  • Inazawa, JP (1983 - 1986)
  • Toyohashi, JP (1988)

Company Filing History:


Years Active: 1983-1988

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3 patents (USPTO):Explore Patents

Title: The Innovations of Tomoyoshi Yamada

Introduction

Tomoyoshi Yamada is a notable inventor based in Inazawa, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of soundproofing and protective materials. With a total of 3 patents to his name, Yamada continues to push the boundaries of innovation in his industry.

Latest Patents

One of Yamada's latest inventions is a vibration damping soundproof sheet designed for use in vehicles. This invention addresses the challenge of creating a flat soundproof layer, regardless of the uneven surface configurations found in vehicles. The soundproof layer is made from a rubber blend that includes a foaming agent and other rubber blending agents, with a composition that contains between 15 to 85% by weight of 1,2-polybutadiene.

Another significant patent is for a dust boot with a multiple layer construction of bellows. This dust boot is specifically designed for a constant velocity universal joint and features a bellows-shaped boot made of chloroprene rubber, which substantially excludes wax. A polyamide resin coating layer is applied to the outer surface of the boot, providing excellent wear resistance without peeling. A primer layer made from a mixture of chloroprene rubber and isocyanate compound is also included to ensure the coating layer adheres securely to the bellows.

Career Highlights

Yamada is currently employed at Toyoda Gosei Co., Ltd., a company known for its innovative automotive components. His work at Toyoda Gosei has allowed him to focus on developing advanced materials that enhance vehicle performance and comfort.

Collaborations

Throughout his career, Yamada has collaborated with several talented individuals, including Mikio Ukai and Junichi Sato. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Tomoyoshi Yamada's contributions to the field of automotive technology through his innovative patents demonstrate his commitment to enhancing vehicle performance and safety. His work continues to inspire future advancements 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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