Matsumoto, Japan

Keiji Okumura

This inventor holds 41 USPTO granted patents and 8 published patent applications and 1 EPO patent, primarily in Semiconductor Devices. Top assignees: Fuji Electric Co., Ltd., Fuji Electric., Ltd.. Active years: 2018-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Okumura. Retrieved from https://idiyas.com/inventor/keiji-okumura

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

Calculating rank
USPTO Granted Patents = 41 

% Patents Active = 100.0


Average Co-Inventor Count = 1.1

ph-index = 3

Forward Citations = 26(Granted Patents)


Location History:

  • Kawasaki, JP (2023)
  • Nagano, JP (2018 - 2024)
  • Matsumoto, JP (2018 - 2024)

Company Filing History:


Years Active: 2018-2026

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Areas of Expertise:
Semiconductor Device
Insulated-Gate Technology
Silicon Carbide
Manufacturing Method
Current Concentration
Electronic Circuit
Trench Gate
Base Region
Semiconductor Module
Inspection Method
Apparatus
Device Manufacturing
41 patents (USPTO):Explore Patents

Title: Keiji Okumura: Innovator in Semiconductor Technology

Introduction

Keiji Okumura is a distinguished inventor hailing from Matsumoto, Japan. With an impressive portfolio of 37 patents, he has made significant contributions to the field of semiconductor technology. His innovative designs and methods have paved the way for advancements in the manufacturing and functionality of insulated-gate semiconductor devices.

Latest Patents

Among Okumura's latest innovations are two notable patents. The first is an "Insulated-gate semiconductor device and method of manufacturing the same," which features a chip structure with strategically arranged trenches. This design enhances the performance of the semiconductor by including a first unit cell and a second unit cell, each with distinct components that work in tandem to improve efficiency.

The second patent is focused on a general "Semiconductor device" that incorporates various layers, including an n-type drift layer and a p-type base region. This intricate arrangement of materials ensures optimal performance and reliability in semiconductor applications. The innovations demonstrated in these patents illustrate Okumura's commitment to advancing semiconductor technology.

Career Highlights

Throughout his career, Keiji Okumura has been associated with Fuji Electric Co., Ltd., where he has contributed significantly to the company's technological advancements. His work has not only led to numerous patents but has also influenced the industry standards for semiconductor design and manufacturing.

Collaborations

Okumura has collaborated with esteemed colleagues, including Akimasa Kinoshita and Setsuko Wakimoto. These collaborations have been instrumental in driving innovation within the company and fostering a dynamic research environment that encourages creative problem-solving.

Conclusion

Keiji Okumura stands out as a leading inventor in the semiconductor domain, with a prolific record of patents that reflect his ingenuity and dedication to technology. His latest inventions have not only enhanced the capabilities of semiconductor devices but also inspired future innovations in the field. As he continues to work with Fuji Electric Co., Ltd., the impact of his contributions is likely to resonate within the industry for years to come.

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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