Tokyo, Japan

Kei Yamamoto

This inventor holds 19 USPTO granted patents and 2 published patent applications, primarily in Semiconductor Technology. Top assignees: Mitsubishi Electric Corporation, Carbgem Inc., Mitsubishi Denki Kabushiki Kaisha. Active years: 2009-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kei Yamamoto. Retrieved from https://idiyas.com/inventor/kei-yamamoto-qqtbrip0

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

USPTO Granted Patents = 19 

% Patents Active = 84.2

Average Co-Inventor Count = 3.8

ph-index = 3

Forward Citations = 26(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2017 - 2020)
  • Tokyo, JP (2009 - 2024)

Company Filing History:


Years Active: 2009-2026

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Areas of Expertise:
Semiconductor Device
Power Converter
Power Module
Manufacturing Method
Thermal Management
Insulating Sheet
Heat Conductive Sheet
Thermosetting Resin
Mobile Terminal Device
Program
Semiconductor Apparatus
B-Stage Heat Conductive Sheet
19 patents (USPTO):Explore Patents

Title: Kei Yamamoto: Innovator in Semiconductor Technology

Introduction

Kei Yamamoto is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 19 patents. His innovative work focuses on enhancing the efficiency and reliability of power modules and semiconductor devices.

Latest Patents

Among his latest patents is a power module that includes a highly-heat-dissipating insulation adhesive sheet. This power module features a heat spreader with excellent heat conducting properties, a semiconductor element thermally connected to the heat spreader, and a complex insulation adhesive sheet that enhances heat dissipation. Another notable patent is for a highly reliable semiconductor device and power conversion device, which includes a base member, a sealing member, and a terminal member designed for optimal performance.

Career Highlights

Throughout his career, Kei Yamamoto has worked with leading companies in the industry, including Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has allowed him to develop cutting-edge technologies that have advanced the field of semiconductor devices.

Collaborations

Kei has collaborated with notable professionals in his field, including Kazuhiro Tada and Seiki Hiramatsu. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

Kei Yamamoto's contributions to semiconductor technology through his numerous patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in power modules and semiconductor devices.

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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