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For the Inventor, By the Inventor

Tokyo, Japan

Yoshikatsu Hiratsuka

This inventor holds 10 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignee: Sumitomo Heavy Industries, Ltd.. Active years: 2015-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikatsu Hiratsuka. Retrieved from https://idiyas.com/inventor/yoshikatsu-hiratsuka

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

Calculating rank
USPTO Granted Patents = 10 

% Patents Active = 50.0

 

Average Co-Inventor Count = 1.7

ph-index = 1

Forward Citations = 4(Granted Patents)


Location History:

  • Nishitokyo, JP (2018 - 2019)
  • Tokyo, JP (2015 - 2021)

Company Filing History:

goldMedal10 out of 1,258 
 
Sumitomo Heavy Industries, Ltd.
 patents

Years Active: 2015-2021

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10 patents (USPTO):Explore Patents
1. 11092271 - Flexible connection pipe for cryocooler and cryocooler (2021-08-17),
2. 10480665 - Valve structure, nonlubricated linear compressor, and cryocooler (2019-11-19),
3. 10393411 - Stirling cryocooler (2019-08-27),
4. 10228164 - Stirling refrigerator (2019-03-12),
5. 9976780 - Stirling-type pulse tube refrigerator (2018-05-22),
6. 9964340 - Stirling refrigerator (2018-05-08),
7. 9759459 - Regenerator and regenerative refrigerator with insertion member (2017-09-12),
8. 9574798 - U-shaped pulse-tube refrigerator (2017-02-21),
9. 9127864 - Regenerative refrigerator (2015-09-08),
10. 9103332 - Refrigerator and compressor (2015-08-11),

Title: Innovations of Yoshikatsu Hiratsuka

Introduction

Yoshikatsu Hiratsuka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of cryogenics and compressor technology. With a total of 10 patents, his work has been instrumental in advancing these technologies.

Latest Patents

Hiratsuka's latest patents include a flexible connection pipe for cryocoolers and a valve structure for nonlubricated linear compressors. The flexible connection pipe features a connection hose that includes a flexible pipe and a connection adapter, designed to enhance the efficiency of cryocoolers. The valve structure is innovative, comprising a valve seat part with a valve hole connecting two gas chambers, and an elastic valve-body member that opens the valve hole under pressure differential.

Career Highlights

Hiratsuka is currently employed at Sumitomo Heavy Industries, Ltd., where he continues to develop cutting-edge technologies. His work has garnered attention for its practical applications in various industries, particularly in improving the performance of cryogenic systems.

Collaborations

He has collaborated with notable coworkers such as Kyosuke Nakano and Kenta Yumoto, contributing to a dynamic team focused on innovation and technological advancement.

Conclusion

Yoshikatsu Hiratsuka's contributions to the field of cryogenics and compressor technology are noteworthy. His innovative patents and collaborative efforts continue to shape the future of these industries.

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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