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For the Inventor, By the Inventor

Kobe, Japan

Kenji Tagashira

This inventor holds 10 USPTO granted patents. Top assignee: Sumitomo Rubber Industries Limited. Active years: 1990-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Tagashira. Retrieved from https://idiyas.com/inventor/kenji-tagashira

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

Calculating rank
USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 4

Forward Citations = 72(Granted Patents)


Location History:

  • Hyogo, JP (1990 - 1995)
  • Kobe, JP (1994 - 2001)

Company Filing History:

goldMedal10 out of 4,554 
 
Sumitomo Rubber Industries Limited
 patents

Years Active: 1990-2001

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10 patents (USPTO):Explore Patents
1. 6167932 - Pneumatic tire for passenger cars having specified harshness factor (2001-01-02),
2. 6142204 - Run-flat tire with tread reinforcing layer (2000-11-07),
3. 5679186 - Pneumatic tire with sipes (1997-10-21),
4. 5660655 - Tire and rim combination with exhaust ribs in tire bead (1997-08-26),
5. 5573612 - Tire and rim combination with exhaust means in tire bead (1996-11-12),
6. 5458175 - Pneumatic tire with differently shaped bead portions (1995-10-17),
7. 5318089 - Pneumatic tire (1994-06-07),
8. 5277237 - Tubeless radial tire for heavy duty use (1994-01-11),
9. D316690 - Automobile tire (1991-05-07),
10. D312995 - Automobile tire (1990-12-18),

Title: Kenji Tagashira: Innovator in Tire Technology

Introduction

Kenji Tagashira is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of tire technology, holding a total of 10 patents. His work focuses on enhancing the performance and safety of tires for passenger vehicles.

Latest Patents

Among his latest innovations are two notable patents. The first is a pneumatic tire for passenger cars that features a specified harshness factor. The second is a run-flat tire that includes a tread reinforcing layer. This run-flat tire comprises a tread portion, a pair of bead portions, a pair of sidewall portions, and a carcass that includes at least one carcass ply extending between the bead portions. Additionally, it has a belt disposed radially outside the carcass in the tread portion, along with a tread reinforcing layer made of a high elastic modulus rubber compound. This compound has a complex elastic modulus E* ranging from 10 to 30 MPa, a thickness t between 0.8 to 2.5 mm, and an axial width WA that is 0.7 to 1.0 times the tread width TW of the tire.

Career Highlights

Kenji Tagashira is associated with Sumitomo Rubber Industries Limited, a leading company in the tire manufacturing sector. His innovative designs and patents have played a crucial role in advancing tire technology, ensuring better performance and safety for consumers.

Collaborations

Throughout his career, Tagashira has collaborated with notable colleagues, including Yoshiaki Uemura and Masanao Yoshida. These partnerships have fostered a creative environment that has led to groundbreaking advancements in tire design.

Conclusion

Kenji Tagashira's contributions to tire technology exemplify the spirit of innovation. His patents not only enhance vehicle safety but also reflect the ongoing evolution of tire engineering. His work continues to influence the industry and improve the driving experience for consumers worldwide.

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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