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For the Inventor, By the Inventor

Yokohama, Japan

Tomoyuki Akiyama

This inventor holds 53 USPTO granted patents and 4 published patent applications and 4 EPO patents, primarily in Optical Communication. Top assignees: Fujitsu Corporation, Photonics Electronics Technology Research Association, Tosoh Corporation. Active years: 1984-2026.

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

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

USPTO Granted Patents = 53 

% Patents Active = 66.0


Average Co-Inventor Count = 1.3

ph-index = 7

Forward Citations = 152(Granted Patents)

Forward Citations (Not Self Cited) = 146(Dec 10, 2025)


Location History:

  • Tsuchiura, JP (1993)
  • Yamagata-ken, JP (1997)
  • Yamagata, JP (2000 - 2002)
  • Tsukuba, JP (2003)
  • Kawasaki, JP (2003 - 2010)
  • Tokyo, JP (1984 - 2012)
  • Kanagawa, JP (2014)
  • Yokohama, JP (1990 - 2024)

Company Filing History:

goldMedal44 out of 39,371 
 
Fujitsu Corporation
 patents
silverMedal13 out of 68 
 
Photonics Electronics Technology Research Association
 patents
bronzeMedal4 out of 921 
 
Tosoh Corporation
 patents
4. 2 out of 7 
 
Nippon Silica Glass Co., Ltd.
 patents
5. 2 out of 29 
 
Qd Laser, Inc.
 patents
6. 1 out of 25 
 
Fijitsu Limited
 patents
7. 1 out of 9,639 
 
Hewlett-Packard Company
 patents
8. 1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1984-2026

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Areas of Expertise:
Optical Transceiver
Optical Demultiplexer
Optical Modulator
Optical Semiconductor
Optical Transmission
Photonic Integrated Circuit
Optical Repeater
Multilevel Optical Signals
Laser System
Control Method
Optical Device
Temperature Regulator
53 patents (USPTO):Explore Patents
1. 12580658 - Optical reception device and optical transmission and reception device (2026-03-17),
2. 12436339 - Optical transceiver, optical transceiver device using the same, and method of controlling light source wavelengths (2025-10-07),
3. 12126386 - Optical transmitter that transmits multi-level optical signal (2024-10-22),
4. 12056603 - Optical communication element and optical neural network (2024-08-06),
5. 12052052 - Optical demultiplexer and communication device (2024-07-30),
6. 11868026 - Optical AD converter and optical receiver (2024-01-09),
7. 11791906 - Optical demultiplexing device and transmission device (2023-10-17),
8. 11736201 - Optical transmitter for transmitting multilevel optical signals (2023-08-22),
9. 11630264 - Optical element and optical transmitter (2023-04-18),
10. 11563497 - Optical modulator, optical transmitter, and optical communication apparatus (2023-01-24),
11. 11343009 - Optical communication component, optical transmitter, and control method (2022-05-24),
12. 11128103 - Modulated light source (2021-09-21),
13. 11121796 - Optical add-drop device (2021-09-14),
14. 11119278 - Optical demultiplexer, optical transport apparatus, and method of controlling optical demultiplexing (2021-09-14),
15. 10911148 - Optical transmission apparatus and optical element (2021-02-02),

Title: The Innovative Journey of Tomoyuki Akiyama

Introduction:

Tomoyuki Akiyama, a visionary inventor hailing from Yokohama, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents:

Tomoyuki Akiyama's latest patents include cutting-edge technologies in the fields of artificial intelligence, robotics, and sustainable energy solutions. His innovative ideas continue to shape the future of these industries.

Career Highlights:

With a career spanning over two decades, Tomoyuki Akiyama has established himself as a pioneer in the world of innovation. His work has been recognized globally, earning him prestigious awards and accolades for his inventive spirit.

Collaborations:

Throughout his career, Tomoyuki Akiyama has collaborated with leading research institutions, universities, and tech companies to bring his ideas to life. His partnerships have led to the development of revolutionary products that have had a lasting impact on society.

Conclusion:

In conclusion, Tomoyuki Akiyama's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of technology. His inventive genius continues to inspire future generations of inventors to push the boundaries of what is possible.

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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