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For the Inventor, By the Inventor

Toyota, Japan

Shunsaku Ohnishi

This inventor holds 10 USPTO granted patents. Top assignee: Nippondenso Co., Ltd.. Active years: 1980-1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunsaku Ohnishi. Retrieved from https://idiyas.com/inventor/shunsaku-ohnishi

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 = 3.6

ph-index = 7

Forward Citations = 122(Granted Patents)


Company Filing History:

goldMedal10 out of 3,252 
 
Nippondenso Co., Ltd.
 patents

Years Active: 1980-1988

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10 patents (USPTO):Explore Patents
1. 4723888 - Pump apparatus (1988-02-09),
2. 4573882 - Electrically operated fuel pump apparatus (1986-03-04),
3. 4556363 - Pumping apparatus (1985-12-03),
4. 4538958 - Fuel pump having regenerative section provided with vent housing for (1985-09-03),
5. 4493620 - Electrically operated fuel pump device (1985-01-15),
6. 4492515 - Pump apparatus (1985-01-08),
7. 4478550 - Pump apparatus (1984-10-23),
8. 4451213 - Electrically operated fuel pump device having a regenerative component (1984-05-29),
9. 4445821 - Centrifugal pump having means for counterbalancing unbalanced fluid (1984-05-01),
10. 4218196 - Motor fuel pump (1980-08-19),

Title: Innovations of Shunsaku Ohnishi

Introduction

Shunsaku Ohnishi is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of pump technology, holding a total of 10 patents. His work focuses on enhancing the efficiency and functionality of various pump apparatuses.

Latest Patents

Ohnishi's latest patents include a regenerative pump and an electrically operated fuel pump apparatus. The regenerative pump features a pump housing and a disc-like impeller that rotates via a motor. This design incorporates circumferential rows of radial vane grooves, which are strategically placed to optimize fluid flow. The suction port is designed to be tangential to the bottom face of each vane groove, ensuring efficient operation. The electrically operated fuel pump apparatus consists of an electric motor and a regenerative pump, where the impeller is mounted on a separate shaft, allowing for axial movement while maintaining effective rotation.

Career Highlights

Ohnishi has dedicated his career to advancing pump technology at Nippondenso Co., Ltd. His innovative designs have contributed to the efficiency of fuel systems and other applications, showcasing his expertise in mechanical engineering.

Collaborations

Throughout his career, Ohnishi has collaborated with talented individuals such as Yoshiyuki Hattori and Kiyohiko Watanabe. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Shunsaku Ohnishi's contributions to pump technology exemplify his innovative spirit and dedication to engineering excellence. His patents reflect a commitment to improving efficiency and functionality in mechanical systems.

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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