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For the Inventor, By the Inventor

Toyota, Japan

Hiroshi Takahashi

This inventor holds 18 USPTO granted patents, primarily in Internal Combustion Engines. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha, Nippon Soken, Inc.. Active years: 1980-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Takahashi. Retrieved from https://idiyas.com/inventor/hiroshi-takahashi-nv77sona

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

Calculating rank
USPTO Granted Patents = 18

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 9

Forward Citations = 188(Granted Patents)


Company Filing History:

goldMedal10 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
silverMedal7 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
bronzeMedal4 out of 1,600 
 
Nippon Soken, Inc.
 patents
4. 1 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
5. 1 out of 39 
 
Toyota Jidosha K.k.
 patents
where one patent can have more than one assignee

Years Active: 1980-1988

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Areas of Expertise:
Exhaust Gas Recirculation
Fuel Injection Control
Air-Fuel Ratio Control
Intake System
Swirl-Inducing Apparatus
Helically-Shaped Intake Port
Automatic Painting System
Multi-Cylinder Engine
18 patents (USPTO):Explore Patents
1. 4736728 - Exhaust gas recirculating system (1988-04-12),
2. 4705004 - Fuel injection control system for internal combustion engine (1987-11-10),
3. 4635200 - System for controlling air-fuel ratio in an internal combustion engine (1987-01-06),
4. 4633840 - Method for controlling air-fuel ratio in internal combustion engine (1987-01-06),
5. 4627404 - Method and apparatus for controlling air-fuel ratio in internal (1986-12-09),
6. 4616619 - Method for controlling air-fuel ratio in internal combustion engine (1986-10-14),
7. 4611695 - Automatic painting system (1986-09-16),
8. 4586478 - Air-fuel ratio control method and apparatus for an internal combustion (1986-05-06),
9. 4548178 - Method and apparatus for controlling the air-fuel ratio in an (1985-10-22),
10. 4437445 - Method and apparatus for controlling the fuel feeding rate of an (1984-03-20),
11. 4406258 - Helically-shaped intake port of an internal combustion engine (1983-09-27),
12. 4336776 - Swirl-inducing apparatus for internal combustion engines (1982-06-29),
13. 4323038 - Intake system of a multi-cylinder internal combustion engine (1982-04-06),
14. 4314529 - Intake system of a multi-cylinder internal combustion engine (1982-02-09),
15. 4300500 - Intake system of a multi-cylinder internal combustion engine (1981-11-17),

Title: Hiroshi Takahashi: Pioneering Inventor at Toyota

Introduction: Hiroshi Takahashi is a renowned inventor based in Toyota, Japan, known for his groundbreaking contributions to the automotive industry.

Latest Patents: Hiroshi Takahashi holds several patents related to hybrid vehicle technology, safety features, and sustainable energy solutions.

Career Highlights: With over two decades of experience at Toyota, Hiroshi Takahashi has played a key role in developing innovative technologies that have revolutionized the way we think about transportation.

Collaborations: Throughout his career, Hiroshi Takahashi has collaborated with top engineers, designers, and researchers both within Toyota and from external institutions to push the boundaries of automotive innovation.

Conclusion: Hiroshi Takahashi's dedication to pushing the limits of technology and his passion for creating a more sustainable future make him a true pioneer in the field of automotive inventions.

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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