Yokohama, Japan

Katsuya Okumura

This inventor holds 245 USPTO granted patents and 2 EPO patents, primarily in Semiconductor Technology (CPC class 156345). Top assignees: Kabushiki Kaisha Toshiba, Tokyo Electron Limited, Octec, Inc.. Active years: 1984-2022.

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

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

Calculating rank

% Patents Active = 78.0


Average Co-Inventor Count = 3.0

ph-index = 34

Forward Citations = 4,492(Granted Patents)

Forward Citations (Not Self Cited) = 4,438(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kawasaki, JP (1988)
  • Kanagawa, JP (1990 - 1994)
  • Kanagawa-ken, JP (1996 - 2008)
  • Chiba, JP (2002 - 2009)
  • Tokyo-To, JP (2006 - 2011)
  • Yokohama, JP (1984 - 2012)
  • Tokyo, JP (1999 - 2022)

Company Filing History:

goldMedal185 out of 53,286 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal26 out of 10,933 
 
Tokyo Electron Limited
 patents
bronzeMedal22 out of 23 
 
Octec, Inc.
 patents
4. 13 out of 2,581 
 
Ebara Corporation
 patents
5. 7 out of 2,916 
 
Tokyo Shibaura Denki Kabushiki Kaisha
 patents
6. 5 out of 330 
 
Ckd Corporation
 patents
7. 4 out of 4,826 
 
Fuji Electric Co., Ltd.
 patents
8. 4 out of 1,483 
 
Ibiden Company Limited
 patents
9. 3 out of 51 
 
Tokyo Electron Sagami Limited
 patents
10. 3 out of 56 
 
Tomoegawa Co., Ltd.
 patents
11. 2 out of 6,938 
 
Kyocera Corporation
 patents
12. 2 out of 25,982 
 
Sharp Kabushiki Kaisha Corporation
 patents
13. 2 out of 193 
 
Toshiba Corporation
 patents
14. 1 out of 3,143 
 
Hamamatsu-Photonics K.k.
 patents
15. 1 out of 1,140 
 
Kabushiki Kaisha Yaskawa Denki
 patents
16. 1 out of 1,123 
 
Screen Holdings Co., Ltd.
 patents
17. 1 out of 153 
 
Tokyo Kogaku Kikai Kabushiki Kaisha
 patents
18. 1 out of 2,955 
 
Toshiba Memory Corporation
 patents
19. 1 out of 41 
 
Toudai Tlo, Ltd.
 patents
20. 1 out of 840 
 
Ushio Denki Kabushiki Kaisha
 patents
21. 18 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1984-2022

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Areas of Expertise:
Semiconductor Device
Multichip Semiconductor
Plasma Processing
Moisture Absorption
Chemical Supply System
Film Forming Method
Reticle Chuck Cleaner
Capacitor Manufacturing
Substrate Treating
Probe Method
Inspection Apparatus
Voltage Resistant Structure
245 patents (USPTO):Explore Patents

Title: Katsuya Okumura: Innovating the World with Patents

Introduction:

In the realm of innovations and patents, some individuals manage to stand out with their exceptional contributions. One such individual is Katsuya Okumura, hailing from Yokohama, Japan. Okumura has made a significant impact on various industries through his outstanding inventions and numerous patents. This article delves into his latest patents, career highlights, collaborations, and the profound influence he has had on the technological landscape.

Latest Patents:

Katsuya Okumura's remarkable ingenuity shines through in his latest patents. One notable invention is the self-heating sheet-like material for moisture absorption and desorption. This groundbreaking invention incorporates a self-heating layer and an adsorption layer, allowing for effective moisture management. Another notable patent is the cushion paper, which employs metal fibers to deliver exceptional cushioning capabilities. Okumura's inventions continue to shape various industries, paving the way for improved functionality and convenience.

Career Highlights:

Katsuya Okumura's career has been nothing short of extraordinary. He has contributed significantly to the growth and innovation of esteemed companies such as Toshiba Corporation and Tokyo Electron Limited. Okumura's ingenuity and dedication have led to the development and successful commercialization of numerous technologies, earning him a well-deserved reputation as a visionary inventor.

Collaborations:

Throughout his career, Katsuya Okumura has had the opportunity to collaborate with esteemed individuals. Notable among his coworkers are Nobuo Hayasaka and Shinichi Ito. These collaborations have undoubtedly resulted in synergistic advancements and breakthroughs within the industry. Okumura's ability to work harmoniously with colleagues demonstrates his commitment to sharing knowledge and pushing the boundaries of innovation.

Conclusion:

Katsuya Okumura's immense contributions to the realm of innovations and patents have left an indelible mark on various industries. With an impressive collection of 234 patents, Okumura's inventive prowess has reshaped the way we approach moisture absorption and desorption, as well as cushioning capabilities. His tenure at renowned companies such as Toshiba Corporation and Tokyo Electron Limited further underscores his influential career.

As we continue to witness new technological advancements, it is inventors like Katsuya Okumura who serve as the driving force behind progress. Through his relentless pursuit of innovation, Okumura exemplifies the spirit of ideation that fuels the development of groundbreaking solutions. His work inspires and sets a high standard for aspiring inventors and technologists worldwide.

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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