Tokyo, Japan

Kazumasa Sunagawa

This inventor holds 12 USPTO granted patents and 2 published patent applications and 8 EPO patents. Top assignees: Eagle Industry Co., Ltd., Nok Corporation. Active years: 2016-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumasa Sunagawa. Retrieved from https://idiyas.com/inventor/kazumasa-sunagawa

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

USPTO Granted Patents = 12 

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.5

ph-index = 9

Forward Citations = 150(Granted Patents)


Company Filing History:


Years Active: 2016-2021

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12 patents (USPTO):Explore Patents

Title: Kazumasa Sunagawa: Innovator in Sliding Component Technology

Introduction

Kazumasa Sunagawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of sliding components, holding a total of 12 patents. His innovative designs have advanced the technology used in various mechanical applications.

Latest Patents

Sunagawa's latest patents include a sliding component that features an annular stationary side seal ring fixed to the stationary side and an annular rotating side seal ring that rotates with a shaft. This design effectively seals a silicate-containing fluid by utilizing opposing sealing faces. Additionally, he has developed another sliding component with a fluid circulation groove that communicates with a high-pressure fluid side, enhancing the efficiency of the sealing mechanism.

Career Highlights

Throughout his career, Kazumasa Sunagawa has worked with notable companies such as Eagle Industry Co., Ltd. and Nok Corporation. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced sealing technologies.

Collaborations

Sunagawa has collaborated with talented individuals in his field, including Masatoshi Itadani and Yuichiro Tokunaga. These partnerships have fostered innovation and the exchange of ideas, further enhancing the quality of his work.

Conclusion

Kazumasa Sunagawa's contributions to sliding component technology demonstrate his expertise and commitment to innovation. His patents reflect a deep understanding of mechanical engineering and a drive to improve existing technologies.

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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