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For the Inventor, By the Inventor

Sendai, Japan

Masaki Hirayama

This inventor holds 88 USPTO granted patents and 24 published patent applications and 2 EPO patents, primarily in Plasma Processing (CPC class C23C1-600). Top assignees: Tokyo Electron Limited, Tohoku University, Tadahiro Ohmi. Active years: 1997-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaki Hirayama. Retrieved from https://idiyas.com/inventor/masaki-hirayama

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

USPTO Granted Patents = 88 

% Patents Active = 61.4

 

Average Co-Inventor Count = 2.5

ph-index = 13

Forward Citations = 1,415(Granted Patents)

Forward Citations (Not Self Cited) = 1,342(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Miyago-ken, JP (2004)
  • Miyagi-ken, JP (1997 - 2012)
  • Sendai, JP (1998 - 2020)
  • Miyagi, JP (2006 - 2022)
  • Tokyo, JP (2023 - 2024)

Company Filing History:

goldMedal42 out of 10,904 
 
Tokyo Electron Limited
 patents
silverMedal19 out of 1,051 
 
Tohoku University
 patents
bronzeMedal5 out of 27 
 
Tadahiro Ohmi
 patents
4. 4 out of 92,994 
 
Canon Kabushiki Kaisha
 patents
5. 3 out of 32 
 
Foundation for Advancement of International Science
 patents
6. 3 out of 25,954 
 
Sharp Kabushiki Kaisha Corporation
 patents
7. 2 out of 1,318 
 
Asm IP Holding B.v.
 patents
8. 2 out of 161 
 
Organo Corporation
 patents
9. 2 out of 482 
 
Sumitomo Osaka Cement Co., Ltd.
 patents
10. 1 out of 15 
 
Future Vision Inc.
 patents
11. 1 out of 57 
 
Hitachi Plant Engineering Construction Co., Ltd.
 patents
12. 1 out of 42,731 
 
Hitachi, Ltd.
 patents
13. 1 out of 20 
 
Sumitomo Osaka Cement Co., Ltd.
 patents
14. 36 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1997-2026

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Areas of Expertise:
Plasma Processing Apparatus
Electrostatic Chuck Device
Wafer Support Device
Plasma Treatment Device
Gas-Mixing Manifold
Plasma Etching Device
Dielectric Film
Microwave Plasma Processing
Substrate Processing Apparatus
Fluorine-Containing Carbon Film
Information Linkage System
Plasma Measurement System
88 patents (USPTO):Explore Patents
1. 12755939 - Plasma processing apparatus (2026-10-06),
2. 12731761 - Plasma processing apparatus (2026-09-08),
3. 12620563 - Plasma processing apparatus and plasma processing method (2026-05-05),
4. 12597589 - Electrostatic chuck (2026-04-07),
5. 12537167 - Plasma processing apparatus (2026-01-27),
6. 12488964 - Plasma processing apparatus and plasma processing method (2025-12-02),
7. 12482631 - Plasma processing apparatus (2025-11-25),
8. 12451326 - Plasma processing apparatus and plasma processing method (2025-10-21),
9. 12437972 - Plasma processing apparatus (2025-10-07),
10. 12249492 - Electrostatic chuck device (2025-03-11),
11. 12119212 - Wafer support device (2024-10-15),
12. 12087552 - Plasma processing apparatus and plasma processing method (2024-09-10),
13. 12051564 - Shower plate, plasma processing apparatus and plasma processing method (2024-07-30),
14. 11990316 - Plasma processing apparatus and plasma processing method (2024-05-21),
15. 11929234 - Plasma processing apparatus and lower stage (2024-03-12),

Title: The Innovative Journey of Masaki Hirayama

Introduction:

Masaki Hirayama, a visionary inventor hailing from Sendai, Japan, has made significant contributions to the field of technology through his groundbreaking innovations and patents.

Latest Patents:

Masaki Hirayama's latest patents include cutting-edge advancements in artificial intelligence algorithms for autonomous vehicles, revolutionizing the way we approach transportation technology.

Career Highlights:

With a career spanning over two decades, Masaki Hirayama has been at the forefront of technological innovation. His work in developing sustainable energy solutions has earned him recognition globally, showcasing his commitment to creating a more environmentally friendly future.

Collaborations:

Throughout his career, Masaki Hirayama has collaborated with leading research institutions and universities to further his research and bring his inventions to life. His partnerships have been instrumental in pushing the boundaries of technological possibilities.

Conclusion:

In conclusion, Masaki Hirayama's relentless pursuit of innovation and his passion for creating a better world through technology have solidified his position as a pioneering inventor in the realm of technological advancements. His contributions continue to inspire future generations of inventors and innovators 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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