Higashimurayama, Japan

Yoshiaki Ishikawa

This inventor holds 1 USPTO granted patent. Top assignee: Bridgestone Tire Company Limited. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiaki Ishikawa. Retrieved from https://idiyas.com/inventor/yoshiaki-ishikawa-jplg8rag

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 = 4.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Yoshiaki Ishikawa: Innovator in Tire Technology

Introduction

Yoshiaki Ishikawa is a notable inventor based in Higashimurayama, Japan. He has made significant contributions to the field of tire technology, particularly with his innovative designs that enhance the performance and durability of tires.

Latest Patents

Ishikawa holds a patent for a pneumatic radial tire. This invention features a unique reinforcement for the crown, consisting of a belt made up of multiple laminated plies with intersecting cords. The design incorporates a coating rubber with a higher modulus in the central zone of the belt, which is subjected to the most vertical stresses from the inner air pressure when inflated. Additionally, a lower modulus coating rubber is applied to the edge zones, which possesses high elongation and tensile strength at break. This combination effectively reduces shearing strains at the edges of the belt, thereby increasing the tire's service life.

Career Highlights

Yoshiaki Ishikawa is associated with Bridgestone Tire Company Limited, a leading name in the tire manufacturing industry. His work has contributed to advancements in tire technology, making significant impacts on both performance and safety.

Collaborations

Throughout his career, Ishikawa has collaborated with esteemed colleagues such as Kazuo Koyama and Yukihiko Kamiya. These partnerships have fostered innovation and development in tire design and technology.

Conclusion

Yoshiaki Ishikawa's contributions to tire technology through his patent for a pneumatic radial tire exemplify his innovative spirit and dedication to enhancing product performance. His work continues to influence the tire industry, ensuring safer and more durable tires for consumers.

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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