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For the Inventor, By the Inventor

Toyota, Japan

Takao Ishibashi

This inventor holds 7 USPTO granted patents. Top assignees: Toyota Jidosha Kabushiki Kaisha, Nippondenso Co., Ltd.. Active years: 1985-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Ishibashi. Retrieved from https://idiyas.com/inventor/takao-ishibashi

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

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 6

Forward Citations = 126(Granted Patents)


Company Filing History:

goldMedal7 out of 38,912 
 
Toyota Jidosha Kabushiki Kaisha
 patents
silverMedal2 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1985-1987

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7 patents (USPTO):Explore Patents
1. 4694809 - Method and system for internal combustion engine oxygen sensor heating (1987-09-22),
2. 4655182 - Method and system for internal combustion engine oxygen sensor heating (1987-04-07),
3. 4626337 - Oxygen sensor (1986-12-02),
4. 4611562 - Method and system for internal combustion engine oxygen sensor heating (1986-09-16),
5. 4569748 - Oxygen sensor (1986-02-11),
6. 4563991 - Engine air/fuel ratio control method and system selectively providing (1986-01-14),
7. 4561402 - Method and system for internal combustion engine oxygen sensor heating (1985-12-31),

Title: Takao Ishibashi: Innovator in Internal Combustion Engine Technology

Introduction

Takao Ishibashi is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of internal combustion engine technology, holding a total of 7 patents. His work focuses on improving the efficiency and performance of oxygen sensors in exhaust systems.

Latest Patents

One of Ishibashi's latest patents is a method and system for internal combustion engine oxygen sensor heating. This invention involves an exhaust system equipped with an oxygen sensor that includes a sensor element and an electrically powered heater. The method controls the power supplied to the heater based on engine operational parameters. It ensures that the heater operates effectively, even during rapid changes in engine conditions, thereby maintaining optimal sensor performance and reducing exhaust gas emissions.

Career Highlights

Ishibashi has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Denso Corporation. His experience in these organizations has allowed him to develop innovative solutions that enhance engine performance and environmental sustainability.

Collaborations

Throughout his career, Ishibashi has collaborated with talented individuals such as Jiro Nakano and Takao Akatsuka. These partnerships have contributed to the advancement of technology in the automotive sector.

Conclusion

Takao Ishibashi's contributions to internal combustion engine technology demonstrate his commitment to innovation and environmental responsibility. His patents reflect a deep understanding of engine dynamics and a dedication to improving vehicle performance.

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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