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For the Inventor, By the Inventor

Higashimurayama, Japan

Toshiro Tezuka

This inventor holds 13 USPTO granted patents. Top assignee: Bridgestone Tire Company Limited. Active years: 1976-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiro Tezuka. Retrieved from https://idiyas.com/inventor/toshiro-tezuka

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

USPTO Granted Patents = 13

% Patents Active = 100.0

Average Co-Inventor Count = 2.9

ph-index = 9

Forward Citations = 175(Granted Patents)


Location History:

  • Higashi-Murayama, JA (1976 - 1978)
  • Tokyo, JP (1980)
  • Higashi-Murayama, JP (1979 - 1985)

Company Filing History:

goldMedal13 out of 504 
 
Bridgestone Tire Company Limited
 patents

Years Active: 1976-1985

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13 patents (USPTO):Explore Patents
1. 4506718 - Pneumatic tires for off-road vehicles (1985-03-26),
2. 4438796 - Pneumatic tire for off-road vehicles (1984-03-27),
3. 4436130 - Pneumatic radial tire having an excellent side-cut resistant property (1984-03-13),
4. 4235274 - Tread reinforcing construction of pneumatic radial tire for heavy-load (1980-11-25),
5. 4217942 - Heavy duty pneumatic tire (1980-08-19),
6. 4172487 - Pneumatic radial tire (1979-10-30),
7. 4161203 - Pneumatic radial tire (1979-07-17),
8. D251722 - Vehicle tire (1979-05-01),
9. 4086948 - Radial tire for heavy load vehicles (1978-05-02),
10. 4077454 - Pneumatic tires suitable for off-road vehicles (1978-03-07),
11. D245771 - Vehicle tire (1977-09-13),
12. 4043372 - Pneumatic tire for off-road vehicles (1977-08-23),
13. 3982580 - Pneumatic tire for construction vehicles (1976-09-28),

Title: Toshiro Tezuka: Innovator in Pneumatic Tire Technology

Introduction

Toshiro Tezuka is a notable inventor based in Higashimurayama, Japan, recognized for his significant contributions to the field of tire technology. With a commendable portfolio that boasts 13 patents, Tezuka has dedicated his career to advancing the performance and durability of pneumatic tires, particularly for off-road vehicles.

Latest Patents

Among his latest innovations, Tezuka has developed a pneumatic tire designed specifically for off-road vehicles. This tire features a carcass body that incorporates organic fiber cords and a breaker composed of at least one rubberized layer with embedded reinforcing elements, ensuring exceptional cut resistance, separation resistance, and high abrasion resistance. The uniqueness of his design lies in a reinforcing element made up of helically formed filaments assembled without twisting, crafted from materials with a remarkable tensile strength of at least 140 Kg/mm². Another patent also addresses side-cut resistance by incorporating a side portion reinforcing layer containing similar innovative materials, enhancing the tire’s overall durability.

Career Highlights

Tezuka's innovative spirit is best reflected in his tenure at Bridgestone Tire Company Limited, where he applies his expertise to develop advanced tire solutions. His work has helped shape the future of off-road vehicle performance, ensuring safety and reliability on challenging terrains. His focus on incorporating high-strength materials in tire design signifies his commitment to enhancing the mechanical properties and longevity of products in the tire industry.

Collaborations

Throughout his career, Toshiro Tezuka has collaborated with esteemed colleagues such as Masaru Abe and Yasuo Suzuki. Together, they have worked on pioneering new tire technologies, sharing insights and expertise to drive advancements in the industry.

Conclusion

Toshiro Tezuka's contributions to pneumatic tire technology exemplify the significance of innovation in modern engineering. With his impressive 13 patents and ongoing collaborative efforts, Tezuka continues to influence the tire industry positively. His advancements not only enhance the durability of tires but also pave the way for safer and more reliable off-road driving experiences.

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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