Company Filing History:

10 out of 1,838

Toyota Jidosha Kogyo Kabushiki Kaisha

patents

7 out of 36,499

Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

patents

where one patent can have more than one assignee

Years Active: 1977-1994

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17 patents (USPTO):Sort by Forward CitationsExplore 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.

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