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For the Inventor, By the Inventor

Okazaki, Japan

Haruo Watanabe

This inventor holds 10 USPTO granted patents. Top assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Nippondenso Co., Ltd.. Active years: 1980-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruo Watanabe. Retrieved from https://idiyas.com/inventor/haruo-watanabe-0xffzlqa

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 6

Forward Citations = 87(Granted Patents)


Location History:

  • Toyota, JP (1980)
  • Aichi, JP (1983)
  • Okazaki, JP (1981 - 1986)

Company Filing History:

goldMedal6 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
silverMedal4 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
bronzeMedal1 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1980-1986

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10 patents (USPTO):Explore Patents
1. 4583174 - Electronically controlled fuel injection apparatus for internal (1986-04-15),
2. 4573443 - Non-synchronous injection acceleration control for a multicylinder (1986-03-04),
3. 4478193 - Connector device for use in an internal combustion engine (1984-10-23),
4. 4471743 - Fuel injection control system (1984-09-18),
5. 4466413 - Fuel cut system for electronic control system (1984-08-21),
6. 4414942 - Idling speed control device of an internal combustion engine (1983-11-15),
7. 4397275 - Idling speed control device of an internal combustion engine (1983-08-09),
8. 4385602 - Rotational speed control device during idling of engine (1983-05-31),
9. 4246566 - Malfunction diagnosing apparatus for electronic control system for (1981-01-20),
10. 4210114 - Air-fuel ratio control apparatus for an internal combustion engine (1980-07-01),

Title: Haruo Watanabe: Innovator in Fuel Injection Technology

Introduction

Haruo Watanabe is a prominent inventor known for his significant contributions to fuel injection technology in internal combustion engines. Based in Okazaki, Japan, he holds a total of 10 patents that showcase his innovative approach to enhancing engine performance and efficiency.

Latest Patents

One of Watanabe's latest patents is an electronically controlled fuel injection apparatus for internal combustion engines. This invention increases the rate of fuel injection when the engine speed drops significantly, particularly under idling conditions. By enlarging the width of the basic fuel injection pulse based on engine speed and intake air flow rate, this apparatus ensures optimal fuel delivery. Additionally, he developed a non-synchronous injection acceleration control system for multicylinder engines. This system allows for simultaneous operation of fuel injectors while controlling the amount of injection based on air flow meter signals, enhancing engine acceleration.

Career Highlights

Watanabe has had a distinguished career, working with Toyota Motor Corporation, where he applied his expertise in fuel injection systems. His work has been instrumental in advancing the technology used in modern vehicles, contributing to improved fuel efficiency and reduced emissions.

Collaborations

Throughout his career, Watanabe has collaborated with notable colleagues, including Hiroshi Itoh and Mamoru Kobashi. These partnerships have fostered innovation and development in the automotive industry.

Conclusion

Haruo Watanabe's contributions to fuel injection technology have made a lasting impact on the automotive sector. His innovative patents continue to influence engine design and performance, showcasing his dedication to advancing automotive engineering.

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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