Hirotsugu Yamaguchi

This inventor holds 20 USPTO granted patents, primarily in Automotive Control Systems. Top assignee: Nissan Motor Company Limited. Active years: 1978-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirotsugu Yamaguchi. Retrieved from https://idiyas.com/inventor/hirotsugu-yamaguchi

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

Calculating rank

USPTO Granted Patents = 20

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 13

Forward Citations = 480(Granted Patents)

Location History:

Yokohama, JA (1978)
Fujisawa, JP (1980 - 1981)
Chigasaki, JP (1985 - 1992)
Kanagawa, JP (1988 - 1993)

Company Filing History:

20 out of 13,420

Nissan Motor Company Limited

patents

Years Active: 1978-1993

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Areas of Expertise:

Vehicle Turning Behavior

Brake System

Automotive Suspension

Cornering Control

Damping Adjustment

Power Steering

Steering Control

Electromagnetic Valve

Clutch Engagement

Vehicle Speed Control

Skid Control

Transverse Displacement

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5267783 - Vehicle turning behavior control apparatus (1993-12-07),

2. 5206808 - Vehicle turning behavior control apparatus (1993-04-27),

3. 5172961 - Vehicle brake system including cornering characteristic control (1992-12-22),

4. 5144558 - Actively controlled automotive suspension system with adjustable (1992-09-01),

5. 5134352 - Vehicle turning behavior control system (1992-07-28),

6. 5089966 - Actively controlled automotive suspension system with improved damping (1992-02-18),

7. 4932726 - Anti-skid brake control system with vehicle speed dependent variable (1990-06-12),

8. 4909534 - Actively controlled automotive suspension system with variable damping (1990-03-20),

9. 4801155 - Actively controlled automotive suspension system with adjustable (1989-01-31),

10. 4745985 - Automotive vehicle power-steering system and method (1988-05-24),

11. 4702490 - Positively controller automotive suspension system (1987-10-27),

12. 4693491 - Suspension system (1987-09-15),

13. 4669360 - Power steering system (1987-06-02),

14. 4634135 - Steering system controlling transverse displacement of a gear housing (1987-01-06),

15. 4541499 - Vehicular power steering having steering effort control system (1985-09-17),

Title: Hirotsugu Yamaguchi: Pioneering Inventor from Kanagawa

Introduction: Hirotsugu Yamaguchi is a renowned inventor hailing from Kanagawa, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hirotsugu Yamaguchi holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative spirit and forward-thinking approach.

Career Highlights: With over two decades of experience in the tech industry, Yamaguchi has worked for leading research institutions and multinational companies, where he has spearheaded projects that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Hirotsugu Yamaguchi has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Hirotsugu Yamaguchi's passion for pushing the boundaries of technology and his relentless pursuit of innovation continue to inspire the next generation of inventors and engineers 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]