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For the Inventor, By the Inventor

Tokyo, Japan

Koichi Akiyama

This inventor holds 58 USPTO granted patents and 2 published patent applications and 4 EPO patents, primarily in Optical Devices (CPC class G02F). Top assignees: Mitsubishi Electric Corporation, Kowa Company Limited, Mitsubishi Chemical Corporation. Active years: 1990-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichi Akiyama. Retrieved from https://idiyas.com/inventor/koichi-akiyama-w8ff5jey

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

Calculating rank
USPTO Granted Patents = 58 

% Patents Active = 93.1

 

Average Co-Inventor Count = 2.2

ph-index = 8

Forward Citations = 275(Granted Patents)

Forward Citations (Not Self Cited) = 270(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hino, JP (1990 - 1992)
  • Tsukuba, JP (1991 - 1992)
  • Choufu, JP (1993)
  • Sagamihara, JP (1994)
  • Yokohama, JP (1994 - 2015)
  • Chiyoda-ku, JP (2014 - 2022)
  • Tokyo, JP (1991 - 2024)

Company Filing History:

goldMedal31 out of 16,627 
 
Mitsubishi Electric Corporation
 patents
silverMedal12 out of 605 
 
Kowa Company Limited
 patents
bronzeMedal4 out of 2,427 
 
Mitsubishi Chemical Corporation
 patents
4. 3 out of 773 
 
Hirose Electric Company, Ltd.
 patents
5. 3 out of 13,420 
 
Nissan Motor Company Limited
 patents
6. 2 out of 2,333 
 
Hitachi Metals, Ltd.
 patents
7. 2 out of 1,704 
 
Mitsubishi Electric Research Laboratories, Inc.
 patents
8. 2 out of 36,735 
 
Nec Corporation
 patents
9. 1 out of 1,168 
 
Autoliv Development Ab
 patents
10. 1 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents
11. 1 out of 22,006 
 
Honda Motor Co., Ltd.
 patents
12. 1 out of 94 
 
Ricoh Imaging Company, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1990-2026

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Areas of Expertise:
Optical Modulator
Waveguide
Biological Measurement
Semiconductor
Optical Transmission
Fiber-Reinforced Material
Photonic Integrated Circuit
Optical Amplifier
Interferometer
Multiplexer
Resin Material
Wavelength Division Multiplexing
58 patents (USPTO):Explore Patents
1. 12607621 - Non-invasive substance analyzer (2026-04-21),
2. 12578614 - Semiconductor optical phase modulator and method of testing the same (2026-03-17),
3. 12541052 - Semiconductor optical integrated element (2026-02-03),
4. 12292400 - Non-invasive substance analysis apparatus (2025-05-06),
5. 12222288 - Biological component measurement apparatus (2025-02-11),
6. 12144617 - Component measurement device and component measurement method (2024-11-19),
7. 12111256 - Biological component measurement apparatus (2024-10-08),
8. 12044615 - Biological component measurement device and biological component measurement method (2024-07-23),
9. 12015247 - Optical transmission apparatus (2024-06-18),
10. 11982919 - Mach-Zehnder type optical modulator (2024-05-14),
11. 11971579 - Multi-mode interferometric optical waveguide device and photonic integrated circuit (2024-04-30),
12. 11951692 - Fiber-reinforced resin material, molded article, method and device for manufacturing fiber-reinforced resin material, and fiber bundle group inspection device (2024-04-09),
13. 11832942 - Biological material measuring apparatus (2023-12-05),
14. 11597165 - Fiber-reinforced resin material, molded article, method and device for manufacturing fiber-reinforced resin material, and fiber bundle group inspection device (2023-03-07),
15. 11304635 - Biological material measuring apparatus (2022-04-19),

Title: The Innovative Legacy of Inventor Koichi Akiyama

Introduction: Koichi Akiyama, a visionary inventor based in Tokyo, JP, has left an indelible mark on the global landscape of innovation with his exceptional contributions to the world of patents and inventions.

Latest Patents: Koichi Akiyama's latest patents include the groundbreaking Multi-mode interferometric optical waveguide device and the innovative Fiber-reinforced resin material. These patents demonstrate his unwavering commitment to pushing the boundaries of technology and enhancing productivity in various sectors.

Career Highlights: With an impressive portfolio of 48 patents to his name, Koichi Akiyama has made significant strides in the field of optical technology and manufacturing processes. His inventions, such as the multi-mode interferometric optical waveguide device, have revolutionized the way light is propagated, leading to reduced optical losses and improved efficiency.

Collaborations: Throughout his illustrious career, Koichi Akiyama has collaborated with top-tier companies such as Mitsubishi Electric Corporation and Kowa Company Limited. His partnerships with esteemed colleagues like Kentaro Enoki and Kosuke Shinohara have resulted in groundbreaking innovations that have reshaped the technological landscape.

Conclusion: Koichi Akiyama's relentless pursuit of innovation and his unwavering dedication to excellence have established him as a trailblazing inventor whose work continues to inspire future generations of innovators worldwide. His innovative spirit and commitment to pushing the boundaries of technological advancement underscore his unparalleled contribution to the field of patents and inventions.

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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