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For the Inventor, By the Inventor

Hamamatsu, Japan

Osamu Sakamoto

This inventor holds 9 USPTO granted patents. Top assignees: Sanshin Kogyo Kabushiki Kaisha, Sanshin Kogyo Kabushiki. Active years: 1990-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Sakamoto. Retrieved from https://idiyas.com/inventor/osamu-sakamoto-ffbct22a

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 5

Forward Citations = 62(Granted Patents)


Company Filing History:

goldMedal8 out of 1,061 
 
Sanshin Kogyo Kabushiki Kaisha
 patents
silverMedal1 out of 1 
 
Sanshin Kogyo Kabushiki
 patent

Years Active: 1990-1995

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9 patents (USPTO):Explore Patents
1. 5450828 - Control device for fuel injection system (1995-09-19),
2. 5387163 - Vertical type multi-cylinder internal combustion engine (1995-02-07),
3. 5373820 - Cylinder fuel injection type two-cycle engine (1994-12-20),
4. 5329902 - Cylinder fuel injection type two-cycle internal combustion engine (1994-07-19),
5. 5131375 - Fuel injection type engine (1992-07-21),
6. 5054457 - Water eliminating system for fuel injection system (1991-10-08),
7. 5041034 - Generating device for marine propulsion engine (1991-08-20),
8. 5019118 - Bearing structure for two-cycle internal combustion engine (1991-05-28),
9. 4901696 - Ignition timing control system for internal combustion (1990-02-20),

Title: Innovations of Osamu Sakamoto

Introduction

Osamu Sakamoto is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of engineering, particularly in the development of fuel injection systems and internal combustion engines. With a total of nine patents to his name, Sakamoto's work has had a considerable impact on engine performance and emissions control.

Latest Patents

Sakamoto's latest patents include a control device for fuel injection systems. This invention focuses on maintaining engine speed control and optimizing fuel injection to minimize hunting and improve exhaust emission control, especially at low speeds. The device achieves this by setting a fixed amount of fuel supplied to the engine per cycle, per cylinder when the engine speed is below a predetermined threshold. Additionally, he has developed a vertical type multi-cylinder internal combustion engine. This outboard motor features vertically spaced cylinders and provides exhaust emission control by delivering a leaner than normal fuel/air mixture to the lower cylinders under specific conditions. The device also enriches the mixture when the engine operates below normal conditions and reduces engine speed if the temperature exceeds a desired maximum.

Career Highlights

Throughout his career, Sakamoto has worked with various companies, including Sanshin Kogyo Kabushiki Kaisha. His expertise in engine technology has allowed him to innovate and improve existing systems, contributing to advancements in the automotive industry.

Collaborations

Sakamoto has collaborated with notable individuals in his field, including Chitoshi Saito and Seiichi Nishimura. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Osamu Sakamoto's contributions to engine technology and fuel injection systems demonstrate his innovative spirit and dedication to improving performance and emissions control. His patents reflect a commitment to advancing engineering solutions that benefit the automotive industry.

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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