Yasuo Matsumoto

This inventor holds 10 USPTO granted patents. Top assignees: Nissan Motor Company Limited, Chisso Corporation. Active years: 1981-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Matsumoto. Retrieved from https://idiyas.com/inventor/yasuo-matsumoto-qo7karmy

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 = 3.2

ph-index = 8

Forward Citations = 178(Granted Patents)

Company Filing History:

9 out of 13,420

Nissan Motor Company Limited

Years Active: 1981-2001

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6294183 - Antimicrobial resin composition and antimicrobial resin molded article comprising same (2001-09-25),

2. 4964375 - Valve operating mechanism (1990-10-23),

3. 4759321 - Valve timing arrangement for internal combustion engine having multiple (1988-07-26),

4. 4708101 - Driving apparatus for intake and exhaust valves of internal combustion (1987-11-24),

5. 4567861 - Engine valve operating system for internal combustion engine (1986-02-04),

6. 4539951 - Variable valve timing mechanism (1985-09-10),

7. 4362341 - Low-noise level internal combustion engine (1982-12-07),

8. 4347825 - Fuel injection apparatus for an internal combustion engine (1982-09-07),

9. 4340024 - Internal combustion engine (1982-07-20),

10. 4304207 - Exhaust gas recirculation system for an internal combustion engine (1981-12-08),

Title: Yasuo Matsumoto: Innovator in Antimicrobial Technology and Engine Mechanisms.

Introduction

Yasuo Matsumoto is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the fields of antimicrobial materials and internal combustion engine technology. With a total of 10 patents to his name, Matsumoto's work has had a lasting impact on various industries.

Latest Patents

One of Matsumoto's latest patents is an antimicrobial resin composition and an antimicrobial resin molded article comprising the same. This invention incorporates ε-polylysine or its salt, which has a water content of not more than 15% by weight. The result is an antibacterial resin composition that excels in antibacterial capacity while being safe for use. The ε-polylysine can be evenly dispersed in the resin, ensuring that the molded article maintains its external appearance. This antibacterial resin composition is applicable in medical sanitary goods, tableware, daily necessities, automobile interior materials, household appliances, films, sheets, fibers, and coatings such as paint and ink. Furthermore, the molded articles retain their antibacterial effect even after repeated use, allowing for extended usability.

Another notable patent is a valve operating mechanism designed for internal combustion engines. This mechanism features a device that drives multiple exhaust valves per cylinder, allowing them to open at different timings relative to the crank angle. In this innovative design, the exhaust valves open at staggered times but close simultaneously, enhancing engine performance.

Career Highlights

Matsumoto has worked with several notable companies, including Nissan Motor Company Limited and Chisso Corporation. His experience in these organizations has contributed to his expertise in developing advanced technologies.

Collaborations

Matsumoto has collaborated with esteemed colleagues such as Seinosuke Hara and Suzuo Suzuki, further enriching his innovative endeavors.

Conclusion

Yasuo Matsumoto's contributions to antimicrobial technology and engine mechanisms showcase his inventive spirit and dedication to improving everyday products. His patents reflect a commitment to safety and efficiency, making him a noteworthy figure in the field of innovation.

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]