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For the Inventor, By the Inventor

Toyoake, Japan

Masaaki Nakayama

USPTO Granted Patents = 20

Average Co-Inventor Count = 2.9

ph-index = 11

Forward Citations = 304(Granted Patents)


Company Filing History:

goldMedal10 out of 19,697 
 
Denso Corporation
 patents
silverMedal10 out of 3,252 
 
Nippondenso Co., Ltd.
 patents

Years Active: 1993-2002

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20 patents (USPTO):Explore Patents
1. 6470674 - Deterioration detecting apparatus and method for engine exhaust gas purifying device (2002-10-29),
2. 6463735 - Apparatus for detecting deterioration of exhaust gas purifying catalysts (2002-10-15),
3. 6338329 - Blow-by gas passage abnormality detecting system for internal combustion engines (2002-01-15),
4. 6295807 - System for detecting deterioration of catalyst for purifying exhaust gas (2001-10-02),
5. 6289880 - Apparatus for detecting leakage of vapor purge system (2001-09-18),
6. 6247464 - Blow-by gas passage abnormality detecting system for internal combustion engines (2001-06-19),
7. 6098603 - Blow-by gas passage abnormality detecting system for internal combustion (2000-08-08),
8. 6082337 - Abnormality detection apparatus for preventing fuel gas emission (2000-07-04),
9. 6073440 - System for detecting deterioration of catalyst for purifying exhaust gas (2000-06-13),
10. 6023651 - Internal combustion engine misfire detection with engine acceleration (2000-02-08),
11. 5727383 - Catalyst deterioration detecting apparatus and exhaust emission control (1998-03-17),
12. 5672817 - Self-diagnostic apparatus of air-fuel ratio control system of internal (1997-09-30),
13. 5528898 - Apparartus for detecting deterioration of catalysts (1996-06-25),
14. 5499537 - Apparatus for detecting misfire in internal combustion engine (1996-03-19),
15. 5412942 - Catalytic converter deterioration detecting system for engine (1995-05-09),

Title: Innovations by Masaaki Nakayama in Exhaust Gas Purification

Introduction

Masaaki Nakayama, an accomplished inventor based in Toyoake, Japan, holds an impressive portfolio of 20 patents. His work primarily focuses on advancing technologies related to engine exhaust gas purifying devices, contributing significantly to environmental protection and automotive efficiency.

Latest Patents

Among his most notable inventions are the "Deterioration Detecting Apparatus and Method for Engine Exhaust Gas Purifying Device" and the "Apparatus for Detecting Deterioration of Exhaust Gas Purifying Catalysts." The former involves strategically positioned air/fuel ratio responsive sensors that enable feedback control of the air/fuel mixture based on upstream and downstream sensor outputs. This innovative method allows for improved detection of catalyst deterioration by analyzing the changes in sensor outputs as the catalyst degrades. Similarly, the latter patent describes a setup where multiple air-fuel ratio sensors work in tandem to diagnose the deteriorating state of catalysts, enhancing the reliability of exhaust gas purification processes.

Career Highlights

Masaaki has had a remarkable career, notably working with companies like Denso Corporation and Nippondenso Co., Ltd. His contributions within these organizations have advanced automotive technologies and have had a lasting impact on enhancing engine performance and reducing emissions.

Collaborations

Throughout his career, Nakayama has collaborated with esteemed colleagues such as Yasuo Mukai and Yasutoshi Baba. These partnerships have allowed for the exchange of ideas and further innovations in the field of automotive engineering.

Conclusion

In summary, Masaaki Nakayama's inventions and innovations play a crucial role in the field of exhaust gas purification. His patents not only enhance engine efficiency but also contribute to cleaner emissions, showcasing the significant impact of his work on the automotive industry and environmental sustainability.

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