Ibaraki, Japan

Keizo Kawamura

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1988-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Kawamura. Retrieved from https://idiyas.com/inventor/keizo-kawamura-td7lm49k

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 = 7.9

ph-index = 2

Forward Citations = 101(Granted Patents)


Location History:

  • Ibaraki, JP (1988)
  • Ibaraki-ken, JP (1998)

Company Filing History:


Years Active: 1988-1998

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2 patents (USPTO):Explore Patents

Title: Keizo Kawamura: Innovator in Semiconductor Cooling Technology

Introduction

Keizo Kawamura is a prominent inventor based in Ibaraki-ken, Japan. He has made significant contributions to the field of semiconductor technology, particularly in cooling systems for integrated circuits. With a total of two patents to his name, Kawamura's work has had a notable impact on the efficiency and performance of semiconductor devices.

Latest Patents

Kawamura's latest patents include a low thermal resistant, fluid-cooled semiconductor module. This innovative design features semiconductor devices fixed on a substrate by solder, forming an enclosed structure with flanges and a housing. The module incorporates two groups of heat conducting members, each equipped with fins that are in contact with the semiconductor devices and the inner wall of the housing. The fins are designed with a comparatively thick thickness and low height, allowing for improved cooling performance. The module also includes valve mechanisms for introducing and removing a cooling fluid, enhancing its functionality and mass production capability.

Another significant patent by Kawamura is a cooling device for integrated circuit semiconductor chips. This device utilizes thin fin members that fit together with small clearances to effectively transfer heat. The design ensures that the thermal conductive member maintains constant plane contact with the semiconductor chip, thereby enhancing cooling performance.

Career Highlights

Kawamura is currently employed at Hitachi, Ltd., where he continues to innovate in the semiconductor field. His work has been instrumental in advancing cooling technologies that are crucial for the performance of modern electronic devices.

Collaborations

Kawamura has collaborated with notable colleagues, including Takahiro Daikoku and Noriyuki Ashiwake. Their combined expertise has contributed to the development of cutting-edge technologies in semiconductor cooling.

Conclusion

Keizo Kawamura's contributions to semiconductor technology, particularly in cooling systems, highlight his role as an influential inventor. His patents reflect a commitment to enhancing the efficiency and performance of semiconductor devices, making a lasting impact in the industry.

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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