Isamu Tsumori

This inventor holds 10 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignee: Sumitomo Rubber Industries Limited. Active years: 2001-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isamu Tsumori. Retrieved from https://idiyas.com/inventor/isamu-tsumori

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

USPTO Granted Patents = 10 (Patent Applications = 2)

% Patents Active = 40.0

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 2.9

ph-index = 4

Forward Citations = 66(Granted Patents)

Location History:

Amagasaki, JP (2001 - 2002)
Kobe, JP (2006 - 2018)

Company Filing History:

10 out of 4,544

Sumitomo Rubber Industries Limited

patents

Years Active: 2001-2018

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9932460 - Rubber composition and pneumatic tire (2018-04-03),

2. 9012560 - Rubber composition and pneumatic tire (2015-04-21),

3. 8875765 - Rubber composition for clinch apex and pneumatic tire (2014-11-04),

4. 8813798 - Rubber composition for tire, and pneumatic tire (2014-08-26),

5. 8110056 - Process for preparing studless tire with tread having zinc oxide whiskers, glass fibers and porous natural glass (2012-02-07),

6. 7122090 - Process for preparing rubber sheet and tread and studless tire using same (2006-10-17),

7. 6463973 - Vehicle tire including wide carbon black reinforced rubber parts and narrow silica reinforced rubber parts (2002-10-15),

8. 6302173 - Vehicle tire including conductive rubber (2001-10-16),

9. 6201049 - Rubber composition for tire sidewall (2001-03-13),

10. 6184283 - Rubber composition for tread (2001-02-06),

Title: Isamu Tsumori: Innovator in Rubber Composition and Pneumatic Tire Technology

Introduction

Isamu Tsumori is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of rubber composition and pneumatic tire technology. With a total of 10 patents to his name, Tsumori's work focuses on enhancing the performance and efficiency of tire materials.

Latest Patents

Tsumori's latest patents include innovative rubber compositions designed to improve fuel economy, wet-grip performance, and abrasion resistance. One of his inventions involves a rubber composition that contains a rubber component, silica, and a liquid resin with a softening point ranging from -20 to 20°C. This composition includes a conjugated diene polymer and specific modifications to enhance its properties. Another patent features a similar rubber composition that incorporates a silane coupling agent with a mercapto group, further optimizing the performance of pneumatic tires.

Career Highlights

Isamu Tsumori is currently employed at Sumitomo Rubber Industries Limited, a leading company in the tire manufacturing sector. His work has been instrumental in advancing the technology used in tire production, contributing to the development of more efficient and durable products.

Collaborations

Tsumori has collaborated with notable colleagues, including Tetsuya Kunisawa and Naoya Ichikawa. Their combined expertise has fostered innovation within the company and the industry.

Conclusion

Isamu Tsumori's contributions to rubber composition and pneumatic tire technology have established him as a key figure in the field. His innovative patents continue to influence the development of high-performance tires, showcasing the importance of research and collaboration in driving advancements in technology.

Profile summary based on public USPTO records.