Takasago, Japan

Tomohiro Otsuka

This inventor holds 2 USPTO granted patents. Top assignee: Kobe Steel, Ltd.. Active years: 2022-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomohiro Otsuka. Retrieved from https://idiyas.com/inventor/tomohiro-otsuka-3j02lbsa

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2022-2023

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2 patents (USPTO):Explore Patents

Title: Tomohiro Otsuka: Innovator in Piston and Compressor Technology

Introduction

Tomohiro Otsuka is a notable inventor based in Takasago, Japan. He has made significant contributions to the field of piston and reciprocating compressor technology. With a total of 2 patents to his name, Otsuka's work has had a meaningful impact on the efficiency and longevity of piston components.

Latest Patents

Otsuka's latest patents include innovative designs for pistons and piston rings. One of his patents focuses on a piston that maintains a state where a difference in differential pressure between the piston rings is eased over time. This design extends the life of the piston rings, which is crucial for the durability of the piston. The piston features a body with multiple ring grooves and a leakage groove on the low-pressure side surface, ensuring effective communication between high-pressure and low-pressure spaces.

Another patent involves a piston ring that consists of a first ring portion and a second ring portion. The first ring portion is fitted onto the outer circumferential portion of the piston, allowing it to slide against the inner wall of the cylinder. The second ring portion, positioned opposite the compression chamber, has greater hardness than the first, enhancing the overall performance of the piston assembly.

Career Highlights

Tomohiro Otsuka is currently employed at Kobe Steel, Ltd., where he continues to innovate in the field of engineering. His work has been instrumental in advancing piston technology, making significant strides in both performance and reliability.

Collaborations

Otsuka has collaborated with talented coworkers such as Naofumi Kanei and Shunsuke Morinaka. Their combined expertise has contributed to the successful development of advanced piston and compressor technologies.

Conclusion

Tomohiro Otsuka's contributions to piston and compressor technology exemplify the spirit of innovation. His patents not only enhance the functionality of these components but also extend their lifespan, showcasing his commitment to engineering excellence.

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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