Kumagaya, Japan

Hiroyuki Kainuma

This inventor holds 4 USPTO granted patents. Top assignee: Sawafuji Electric Co., Ltd.. Active years: 1977-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Kainuma. Retrieved from https://idiyas.com/inventor/hiroyuki-kainuma

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 4

Forward Citations = 64(Granted Patents)


Location History:

  • Tokyo, JA (1977)
  • Kumagaya, JP (1981 - 1984)
  • Nitta-machi, JP (1998)

Company Filing History:


Years Active: 1977-1998

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4 patents (USPTO):Explore Patents

Title: Innovations of Hiroyuki Kainuma

Introduction

Hiroyuki Kainuma is a notable inventor based in Kumagaya, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced compressor technologies. With a total of four patents to his name, Kainuma's work reflects a commitment to innovation and efficiency.

Latest Patents

Kainuma's latest patents include a vibrating compressor that features a housing with an inner tube and an outer tube formed concentrically. The design incorporates a permanent magnet fitted to the inner circumferential surface of the outer tube, along with a driving coil positioned in the gap between the permanent magnet and the inner tube. This configuration allows for the effective reciprocating motion of a hollow piston, which is equipped with a valve and supported by springs. Another patent describes a vibrating compressor utilizing ferrite magnets shaped into arc pieces, ensuring uniform magnetic flux density and precise switching of drive current through an electromagnetic coil.

Career Highlights

Kainuma is currently employed at Sawafuji Electric Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in enhancing the performance and reliability of compressors used in various applications.

Collaborations

Kainuma has collaborated with notable colleagues such as Yoshiaki Fujisawa and Yukio Okuda, contributing to a dynamic team focused on advancing engineering solutions.

Conclusion

Hiroyuki Kainuma's contributions to the field of engineering, particularly through his innovative patents, highlight his role as a leading inventor in Japan. His work continues to influence the development of efficient compressor 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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