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For the Inventor, By the Inventor

Mishima, Japan

Takehisa Yaegashi

This inventor holds 28 USPTO granted patents, primarily in Exhaust Gas Purification. Top assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Ibiden Company Limited. Active years: 1978-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takehisa Yaegashi. Retrieved from https://idiyas.com/inventor/takehisa-yaegashi

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

USPTO Granted Patents = 28

% Patents Active = 100.0

Average Co-Inventor Count = 3.1

ph-index = 13

Forward Citations = 576(Granted Patents)


Location History:

  • Susono, JA (1978)
  • Susono, JP (1978 - 1979)
  • Toyota, JP (1988)
  • Shizuoka, JP (1993)
  • Misima, JP (1999)
  • Mishima, JP (1979 - 2002)

Company Filing History:

goldMedal16 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
silverMedal12 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
bronzeMedal1 out of 1,483 
 
Ibiden Company Limited
 patents
4. 1 out of 1,153 
 
Kabushiki Kaisha Toyota Chuo Kenkyusho
 patents
where one patent can have more than one assignee

Years Active: 1978-2002

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Areas of Expertise:
Exhaust Gas Purification
Catalytic Converter
Fuel Injection System
Automatic Transmission
Air-Fuel Ratio
Oxygen Sensor
High-Temperature Gasket
Emission Control
Engine Control
Internal Combustion Engine
Exhaust Emission
Speed Change Control
28 patents (USPTO):Explore Patents
1. 6345496 - Method and device for purifying exhaust gas of an engine (2002-02-12),
2. 6133185 - Exhaust gas purifying catalyst (2000-10-17),
3. 6119452 - Device for purifying exhaust gas of internal combustion engine (2000-09-19),
4. 6047542 - Method and device for purifying exhaust gas of engine (2000-04-11),
5. 5964088 - Device for purifying exhaust gas of engine (1999-10-12),
6. 5832889 - Valve driving apparatus (1998-11-10),
7. 5782087 - Device for purifying exhaust gas of an engine (1998-07-21),
8. 5746052 - Exhaust gas purification device for an engine (1998-05-05),
9. 5271906 - Exhaust emission control apparatus using catalytic converter with (1993-12-21),
10. 5232973 - High-temperature gasket (1993-08-03),
11. 4762026 - Speed change control method and device of automatic transmission for (1988-08-09),
12. 4748950 - Internal combustion engine siamese port type intake system construction (1988-06-07),
13. 4700681 - Fuel injection system for an internal combustion engine (1987-10-20),
14. 4572029 - Speed change control method and device of automatic transmission for (1986-02-25),
15. 4491921 - Method and apparatus for controlling the air fuel ratio in an internal (1985-01-01),

Title: Takehisa Yaegashi - Pioneering Inventor from Mishima, Japan

Introduction: Takehisa Yaegashi is a renowned inventor hailing from Mishima, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Takehisa Yaegashi holds several patents in various technological domains, including robotics, artificial intelligence, and renewable energy sources.

Career Highlights: With a career spanning over two decades, Takehisa Yaegashi has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in the industry.

Collaborations: Throughout his career, Takehisa Yaegashi has collaborated with top researchers, engineers, and scientists both in Japan and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Takehisa Yaegashi's relentless pursuit of innovation and his passion for pushing the boundaries of technology have solidified his reputation as a visionary inventor in the global tech community.

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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