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For the Inventor, By the Inventor

Hoi-gun, Japan

Tomonari Yamakawa

This inventor holds 18 USPTO granted patents and 4 published patent applications and 10 EPO patents, primarily in Vehicle Steering Systems. Top assignees: Jtekt Corporation, Toyoda Koki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha. Active years: 1999-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomonari Yamakawa. Retrieved from https://idiyas.com/inventor/tomonari-yamakawa

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

USPTO Granted Patents = 18 

% Patents Active = 27.8

 

Average Co-Inventor Count = 2.6

ph-index = 3

Forward Citations = 31(Granted Patents)


Location History:

  • Aichi-ken, JP (1999 - 2012)
  • Aichi, JP (2012 - 2014)
  • Hoi-gun, JP (2007 - 2024)

Company Filing History:

goldMedal12 out of 2,468 
 
Jtekt Corporation
 patents
silverMedal5 out of 629 
 
Toyoda Koki Kabushiki Kaisha
 patents
bronzeMedal3 out of 38,970 
 
Toyota Jidosha Kabushiki Kaisha
 patents
4. 2 out of 248 
 
Hino Motors, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1999-2024

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Areas of Expertise:
Convoy Travel System
Travel Assistance Device
Steering Apparatus
Vehicular Steering System
Transmission Ratio Variable Device
Hollow Rack Shaft
Pressure Sensor
Pressure Detection Device
Pressure Switch
Steering-Force Transmitting Apparatus
Motor Vehicle Steering System
Transmission Ratio Variable Mechanism
18 patents (USPTO):Explore Patents
1. 11875685 - Convoy travel system (2024-01-16),
2. 11400936 - Travel assistance device (2022-08-02),
3. 9988072 - Steering apparatus (2018-06-05),
4. 9586614 - Vehicular steering system (2017-03-07),
5. 8784253 - Transmission ratio variable device (2014-07-22),
6. 8770054 - Manufacturing method for hollow rack shaft, and hollow rack shaft (2014-07-08),
7. 8662242 - Vehicle steering system (2014-03-04),
8. 8382159 - Steering-force transmitting apparatus for vehicle (2013-02-26),
9. 8371977 - Transmission ratio variable mechanism and motor vehicle steering system including the same (2013-02-12),
10. 8266980 - Steering apparatus (2012-09-18),
11. 8201657 - Steering apparatus for vehicle (2012-06-19),
12. 8181734 - Motor vehicle steering system (2012-05-22),
13. 8100222 - Steering apparatus (2012-01-24),
14. 7194375 - Pressure sensor (2007-03-20),
15. 7096739 - Pressure sensor containing fluorine-based adhesive (2006-08-29),

Title: Tomonari Yamakawa: Pioneering Inventor from Hoi-gun, Japan

Introduction: Tomonari Yamakawa is a distinguished inventor hailing from Hoi-gun, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yamakawa's recent patents focus on advancements in renewable energy technologies, particularly in the development of solar-powered devices for sustainable living.

Career Highlights: With a career spanning over two decades, Yamakawa has been instrumental in revolutionizing the way we harness energy through his innovative designs and engineering solutions. His work has not only garnered international recognition but has also significantly impacted the renewable energy sector.

Collaborations: Throughout his career, Yamakawa has collaborated with leading research institutions, universities, and tech companies to further his research and bring his inventions to life. His collaborative efforts have led to the successful implementation of several cutting-edge technologies in the market.

Conclusion: Tomonari Yamakawa's relentless pursuit of innovation and his passion for creating a more sustainable future have solidified his position as a trailblazer in the world of inventors. His work continues to inspire and drive positive change in the realm of renewable energy and beyond.

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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