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For the Inventor, By the Inventor

Kanagawa, Japan

Opnext Japan, Inc.


USPTO Granted Patents = 134


Forward Citations = 575

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182 inventors (with patents filed for the assignee):

goldMedal Osamu Kagaya (14 out of 82 patents)

silverMedal Shigeru Tokita (13 out of 16 patents)

bronzeMedal Kazumi Kawamoto (12 out of 30 patents)

4.  Hideyuki Kuwano (11 out of 15 patents)

5.  Tomonobu Tsuchiya (10 out of 30 patents)

6.  Naoki Matsushima (10 out of 38 patents)

7.  Masahiro Aoki (9 out of 51 patents)

8.  Kazunori Shinoda (8 out of 29 patents)

9.  Kazuhiko Naoe (8 out of 8 patents)

10.  Hideo Arimoto (7 out of 21 patents)

11.  Michihide Sasada (7 out of 15 patents)

12.  Hiroo Matsue (7 out of 8 patents)

13.  Masanobu Okayasu (7 out of 7 patents)

14.  Yoshiaki Niwa (7 out of 7 patents)

15.  Shigehisa Tanaka (6 out of 21 patents)


Core Competencies:
Optical Transceiver
Wavelength Tunable Laser
Optical Transmission Module
Nitride Semiconductor
Optical Communication Module
Semiconductor Laser Diode
Optical Receiver Module
Electro-Absorption Modulator
Optical Integrated Device
Optical Transmitter
Optical Semiconductor Device
Bidirectional Communication System

134 patents:

1. 8313251 - Optical transceiver and projection covering member (2012-11-20),
2. 8275011 - Optical transmission module, wavelength monitor, and wavelength drift detection method (2012-09-25),
3. 8218973 - Optical transmitter device and optical transmitter module (2012-07-10),
4. 8213472 - Optical transmitter and optical communications device (2012-07-03),
5. 8204351 - Optical module (2012-06-19),
6. 8179931 - Wavelength tunable filter and wavelength tunable laser module (2012-05-15),
7. 8131158 - Optical transmission circuit (2012-03-06),
8. 8124432 - Nitride semiconductor optical element and manufacturing method thereof (2012-02-28),
9. 8118498 - Optical receptacle, optical module, and method of manufacturing an optical module (2012-02-21),
10. 8107823 - Optical transmission module (2012-01-31),
11. 8106408 - Optical semiconductor device with flexible substrate (2012-01-31),
12. 8098998 - Optical transmitter (2012-01-17),
13. 8077750 - Optical transmitting module and optical transmitting device (2011-12-13),
14. 8068526 - Semiconductor optical device (2011-11-29),
15. 8000364 - Nitride semiconductor light emitting device and method of manufacturing the same (2011-08-16),
Opnext Japan, Inc. is a leading manufacturer of optical communication components and modules. With a strong focus on research and development, Opnext has been at the forefront of enabling high-speed, high-capacity optical networks. The company's product portfolio includes lasers, transceivers, and other optical communication devices that are used in telecommunications, data centers, and other industries. Opnext Japan, Inc. is committed to providing innovative solutions that meet the evolving needs of the global optical communications market.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

134 Patents

#25 in Kanagawa

#898 in Japan

#5,846 in the World

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Kanagawa, Japan

Opnext Japan, Inc.

Forward Citations = 575

182 inventors:

goldMedal Osamu Kagaya (14 out of 82 patents)

silverMedal Shigeru Tokita (13 out of 16 patents)

bronzeMedal Kazumi Kawamoto (12 out of 30 patents)

4.  Hideyuki Kuwano (11 out of 15 patents)

5.  Tomonobu Tsuchiya (10 out of 30 patents)

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