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For the Inventor, By the Inventor

Saitama, Japan

Toshio Yamagiwa

This inventor holds 50 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent, primarily in Tire Pressure Management (CPC class B60C). Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Honda Motor Co., Ltd., Inoue Rubber Co., Ltd.. Active years: 1987-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Yamagiwa. Retrieved from https://idiyas.com/inventor/toshio-yamagiwa

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

USPTO Granted Patents = 50

% Patents Active = 48.0



Average Co-Inventor Count = 1.7

ph-index = 10

Forward Citations = 335(Granted Patents)

Forward Citations (Not Self Cited) = 324(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Niiza, JP (1987 - 1994)
  • Saitama-ken, JP (1999 - 2004)
  • Wako, JP (2001 - 2010)
  • Saitama, JP (1998 - 2013)

Company Filing History:

goldMedal41 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents
silverMedal8 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
bronzeMedal1 out of 1 
 
Inoue Rubber Co., Ltd.
 patent
4. 1 out of 1 
 
Nippon Leakless Kogyo Kabushiki Kaisha
 patent
5. 1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2013

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Areas of Expertise:
Tire Pressure
Sealant Technology
Vehicle Management
Air Pressure Detection
Shock Absorbers
Tubeless Tires
IC Tag Systems
Manufacturing Methods
Puncture Prevention
Compact Vehicles
Maintenance Systems
Tire Tubes
50 patents (USPTO):Explore Patents
1. 8610537 - Vehicle-use key, maintenance support/management system of vehicle, and stolen vehicle check system (2013-12-17),
2. 7764173 - IC tag equipped vehicle and management system thereof (2010-07-27),
3. 7522881 - Vehicle (2009-04-21),
4. 7503506 - IC tag mounting structure (2009-03-17),
5. 7316253 - Sealant for prevention of blowout, tubeless tire, and tire tube (2008-01-08),
6. 7296736 - Product management system (2007-11-20),
7. 7228731 - Mounting structure of tire pressure sensing system (2007-06-12),
8. 7168732 - Compact vehicle (2007-01-30),
9. 7152779 - Commodity management system (2006-12-26),
10. 7142116 - Article management system (2006-11-28),
11. 7075417 - Tire pressure detecting system (2006-07-11),
12. 7015803 - Tire air pressure detecting device (2006-03-21),
13. 7004217 - Tire containing sealing agent (2006-02-28),
14. 6972673 - Air pressure detecting device for wheel (2005-12-06),
15. 6971666 - Airbag apparatus for a small size vehicle (2005-12-06),

Title: Innovator Profile: Toshio Yamagiwa

Introduction: Toshio Yamagiwa, based in Saitama, Japan, is a prominent inventor with a remarkable portfolio of 50 patents. His innovations primarily focus on vehicle technology, aiming to enhance safety and management in the automotive industry.

Latest Patents: Among his recent patents are notable inventions such as the Vehicle-use Key, a Maintenance Support/Management System for Vehicles, and a Stolen Vehicle Check System. The Vehicle-use Key serves multiple purposes: it allows the owner to access the vehicle, prevents theft by ensuring the key cannot be easily taken, and assists in locating a stolen vehicle. This key incorporates a radio communication component (RFID), facilitating data exchange with external devices, enabling the owner to manage vital vehicle history and maintenance records seamlessly. Additionally, he has developed an IC Tag equipped vehicle system, featuring various dashboard indicators and a robust data management system that uses wireless communication to provide vehicle performance information.

Career Highlights: Throughout his esteemed career, Toshio Yamagiwa has contributed significantly to major automotive manufacturers, including Honda Giken Kogyo Kabushiki Kaisha and Honda Motor Co., Ltd. His inventions reflect a strong commitment to innovation in vehicle technology.

Collaborations: Toshio has worked alongside notable colleagues such as Tomoyuki Harada and Hirohisa Takahashi. Together, they have contributed to advancing automotive technologies and ensuring safer driving experiences for consumers.

Conclusion: Toshio Yamagiwa's dedication to innovation and his impressive collection of patents underscore his influence in the automotive sector. With ongoing advancements in vehicle technology, his contributions continue to shape the future of vehicle safety and management.

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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