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For the Inventor, By the Inventor

Zushi, Japan

Masahiko Kanamaru

This inventor holds 6 USPTO granted patents. Top assignee: The Yokohama Rubber Co., Ltd.. Active years: 1987-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Kanamaru. Retrieved from https://idiyas.com/inventor/masahiko-kanamaru

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

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 73(Granted Patents)


Company Filing History:

goldMedal6 out of 2,770 
 
The Yokohama Rubber Co., Ltd.
 patents

Years Active: 1987-1993

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6 patents (USPTO):Explore Patents
1. 5205883 - Pneumatic tire with polygonal bead core (1993-04-27),
2. 5154217 - Heavy-duty pneumatic tire preventing belt separation (1992-10-13),
3. 4998575 - Heavy loading tubless tire with defined polygonal section bead core (1991-03-12),
4. 4736782 - Pneumatic tire tread (1988-04-12),
5. 4724878 - Heavy-duty pneumatic radial tire tread with narrow groove near shoulder (1988-02-16),
6. D293426 - Tire for automobiles (1987-12-29),

Title: Masahiko Kanamaru: Innovator in Tire Technology

Introduction

Masahiko Kanamaru is a prominent inventor based in Zushi, Japan. He has made significant contributions to the field of tire technology, holding a total of 6 patents. His innovative designs have advanced the performance and durability of pneumatic tires.

Latest Patents

One of Kanamaru's latest patents is for a pneumatic tire with a polygonal bead core. This design features a circular bead core with a substantially polygonal cross-section, which enhances the tire's performance. The inclination of the base relative to the axial direction of the tire is carefully engineered to optimize functionality. Another notable patent is for a heavy-duty pneumatic tire that prevents belt separation. This tire incorporates multiple belt layers, with the outermost layer made of a steel cord that provides exceptional strength and durability.

Career Highlights

Kanamaru has dedicated his career to improving tire technology. His work at The Yokohama Rubber Co., Ltd. has positioned him as a key figure in the industry. His innovative approaches have not only led to numerous patents but have also contributed to the company's reputation for quality and performance.

Collaborations

Throughout his career, Kanamaru has collaborated with talented individuals such as Kazuyuki Kabe and Osamu Takahashi. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge tire technologies.

Conclusion

Masahiko Kanamaru's contributions to tire technology through his patents and collaborations have made a lasting impact on the industry. His work continues to influence the design and performance of pneumatic tires, showcasing the importance of innovation in engineering.

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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