logo

For the Inventor, By the Inventor

Susono, Japan

Kiyohiko Oishi

This inventor holds 17 USPTO granted patents, primarily in Exhaust Gas Purification. Top assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.. Active years: 1977-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyohiko Oishi. Retrieved from https://idiyas.com/inventor/kiyohiko-oishi

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

Calculating rank
USPTO Granted Patents = 17

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 10

Forward Citations = 295(Granted Patents)


Location History:

  • Susono, JA (1977)
  • Susono, JP (1978 - 1992)
  • Toyota, JP (1992 - 1994)

Company Filing History:

goldMedal10 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
silverMedal7 out of 38,970 
 
Toyota Jidosha Kabushiki Kaisha
 patents
bronzeMedal5 out of 1,600 
 
Nippon Soken, Inc.
 patents
4. 1 out of 1,153 
 
Kabushiki Kaisha Toyota Chuo Kenkyusho
 patents
where one patent can have more than one assignee

Years Active: 1977-1994

Loading Chart...
Areas of Expertise:
Exhaust Gas Purification
Catalyst
Internal Combustion Engine
Diesel Engines
Exhaust Gas Cleaning
Fuel Injection
Air Intake Device
Particulate Reduction
Exhaust Gas Recirculation
Variable Venturi Carburetor
Secondary Air Introduction
Water Feeding Apparatus
17 patents (USPTO):Explore Patents
1. 5294421 - Method for catalytically purifying exhaust gas (1994-03-15),
2. 5155994 - Exhaust gas purification system for an internal combustion engine (1992-10-20),
3. 5141906 - Catalyst for purifying exhaust gas (1992-08-25),
4. 4667636 - Fuel injection type internal combustion engine (1987-05-26),
5. 4608948 - Air intake device of an internal combustion engine (1986-09-02),
6. 4574748 - Air intake device of an internal combustion engine (1986-03-11),
7. 4549398 - Exhaust gas cleaning device for diesel engines (1985-10-29),
8. 4538412 - Exhaust gas cleaning device for diesel engines (1985-09-03),
9. 4485622 - Exhaust gas cleaning device for internal combustion engine (1984-12-04),
10. 4404798 - Exhaust gas cleaning device for internal combustion engine (1983-09-20),
11. 4404795 - Method of and apparatus for reducing emitted amount of particulates (1983-09-20),
12. 4386497 - Exhaust gas cleaning device for internal combustion engine (1983-06-07),
13. 4272460 - Variable venturi type carburetor (1981-06-09),
14. 4264537 - Variable venturi type carburetor (1981-04-28),
15. 4242997 - Exhaust gas recirculation system for internal combustion engines (1981-01-06),

Title: The Innovative Contributions of Kiyohiko Oishi

Introduction

Kiyohiko Oishi, an inventive mind based in Susono, Japan, has made significant strides in the field of exhaust gas purification. With a portfolio of 17 patents, his work is at the forefront of environmental technology and automotive engineering.

Latest Patents

Among his latest innovations is a "Method for Catalytically Purifying Exhaust Gas." This method focuses on purifying oxygen-rich exhaust gases by reducing nitrogen oxides through the use of a noble metal catalyst supported on a suitable carrier of rare earth metals and group IV A metals. Another notable patent is the "Exhaust Gas Purification System for an Internal Combustion Engine," which incorporates a noble metal-based catalyst to decompose NOx in engine exhaust into less harmful substances. This system enhances thermal durability while minimizing hydrocarbon emissions.

Career Highlights

Kiyohiko Oishi has played a pivotal role in the automotive industry, particularly during his tenure at Toyota Motor Corporation. His contributions have been instrumental in developing cleaner and more efficient exhaust systems for internal combustion engines.

Collaborations

Throughout his career, Oishi has collaborated with notable colleagues such as Tokuta Inoue and Kiyoshi Kobashi. Their teamwork has facilitated advancements in exhaust gas purification, showcasing the importance of collaboration in driving innovation forward.

Conclusion

In summary, Kiyohiko Oishi stands out as a key innovator in the realm of automotive technology, particularly in reducing environmental impacts through his pioneering patents. His work continues to influence the future of the automotive industry and environmental sustainability.

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]
Loading…