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For the Inventor, By the Inventor

Tokyo, Japan

Photonics Electronics Technology Research Association


USPTO Granted Patents = 68

% Expired Patents = 44.1


Forward Citations = 201

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56 inventors (with patents filed for the assignee):

goldMedal Tomoyuki Akiyama (13 out of 53 patents)

silverMedal Junichi Fujikata (8 out of 52 patents)

bronzeMedal Tsuyoshi Horikawa (7 out of 33 patents)

4.  Shigeki Takahashi (6 out of 23 patents)

5.  Masatoshi Tokushima (6 out of 30 patents)

6.  Kenichiro Yashiki (6 out of 9 patents)

7.  Keizo Kinoshita (6 out of 16 patents)

8.  Tohru Mogami (5 out of 11 patents)

9.  Ichiro Ogura (5 out of 18 patents)

10.  Koichi Takemura (5 out of 13 patents)

11.  Jun Ushida (4 out of 21 patents)

12.  Kazuhiko Kurata (4 out of 39 patents)

13.  Hideaki Okayama (4 out of 62 patents)

14.  Tatsuya Usuki (4 out of 23 patents)

15.  Yasuyuki Suzuki (3 out of 106 patents)


Core Competencies:
Optical Communication
Optical Modulator
Optical Transmitter
Semiconductor Device
Optical Element
Wavelength Filter
Optical Circuit
Photonic Integrated Circuit
Electro-Optic Device
Optical Waveguide
Optical Receiver
Signal Conversion

68 patents:

1. 11343009 - Optical communication component, optical transmitter, and control method (2022-05-24),
2. 11307480 - Optical semiconductor device (2022-04-19),
3. 11212214 - Parallel computer system, method of controlling a parallel computer system, and a non-temporary computer-readable medium that stores a program (2021-12-28),
4. 11177623 - Optical device and method of manufacturing the same (2021-11-16),
5. 11137546 - Optical element (2021-10-05),
6. 11128103 - Modulated light source (2021-09-21),
7. 11121796 - Optical add-drop device (2021-09-14),
8. 11119278 - Optical demultiplexer, optical transport apparatus, and method of controlling optical demultiplexing (2021-09-14),
9. 11054675 - Optical modulator and method for manufacturing the same (2021-07-06),
10. 11009726 - Electroab sorption optical modulator (2021-05-18),
11. 10996539 - Electro-optic modulator (2021-05-04),
12. 10958036 - Semiconductor light-emitting device and optical device (2021-03-23),
13. 10911148 - Optical transmission apparatus and optical element (2021-02-02),
14. 10830950 - Optical transmitter-receiver (2020-11-10),
15. 10644822 - Network system (2020-05-05),
Company Overview
The Photonics Electronics Technology Research Association, based in Tokyo, specializes in advancing optical devices and technologies. It focuses on key areas such as optical communication, optical modulators, and optical transmitters, contributing to the development of semiconductor devices and various optical elements. The organization plays a pivotal role in fostering innovation in optical circuits and photonic integrated circuits, driving research and collaboration within the optical technology sector to enhance performance and efficiency in communication systems.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

68 Patents

#682 in Tokyo

#1,431 in Japan

#10,880 in the World

Tokyo, JP
Tokyo, Japan

Photonics Electronics Technology Research Association

Forward Citations = 201

56 inventors:

goldMedal Tomoyuki Akiyama (13 out of 53 patents)

silverMedal Junichi Fujikata (8 out of 52 patents)

bronzeMedal Tsuyoshi Horikawa (7 out of 33 patents)

4.  Shigeki Takahashi (6 out of 23 patents)

5.  Masatoshi Tokushima (6 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Photonics Electronics Technology Research Association. Retrieved from https://idiyas.com/company/photonics-electronics-technology-research-association

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

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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