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Kawasaki, Japan

Fujitsu Optical Components Limited

USPTO Granted Patents = 250

% Expired Patents = 27.2

EPO Patents = 1

Forward Citations = 524

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130 inventors (with patents filed for the assignee):

Masaki Sugiyama (77 out of 118 patents)

Yoshinobu Kubota (24 out of 45 patents)

Masaharu Doi (19 out of 63 patents)

4. Shinji Maruyama (14 out of 22 patents)

5. Kohei Shibata (14 out of 38 patents)

6. Akira Oka (13 out of 13 patents)

7. Shintaro Takeuchi (13 out of 14 patents)

8. Shuntaro Makino (13 out of 13 patents)

9. Takehito Tanaka (13 out of 28 patents)

10. Yasuhiro Ohmori (11 out of 16 patents)

11. Yoshihiko Yoshida (11 out of 13 patents)

12. Seimi Sasaki (10 out of 10 patents)

13. Toshio Ishii (10 out of 32 patents)

14. Teruhiro Kubo (9 out of 9 patents)

15. Shuichi Yasuda (7 out of 7 patents)

Core Competencies:

Wavelength Tunable Laser

Photodetector

Optical Integrated Circuit

Optical Communication Apparatus

Optical Modulator

Optical Transceiver

Optical Waveguide

Optical Amplifier

Photonic Integrated Circuit

Optical Transmission

Mode Converter

Optical Module

250 patents: Sort by Forward Citations

1. 12754372 - Optical device, optical transmitting apparatus, and optical receiving apparatus (2026-10-06),

2. 12730347 - Optical device, optical transceiving device, and optical transceiver (2026-09-08),

3. 12710584 - OPTICAL DEVICE, OPTICAL TRANSMITTER DEVICE, AND OPTICAL RECEIVER DEVICE (2026-08-18),

4. 12687676 - Optical chip and optical communication apparatus (2026-07-21),

5. 12646904 - Optical semiconductor device (2026-06-02),

6. 12640816 - Optical device and optical module (2026-05-26),

7. 12640537 - Optical device and optical transmitter (2026-05-26),

8. 12625329 - Optical device, optical module, and optical transmission and reception apparatus (2026-05-12),

9. 12624989 - Optical detector, optical receiver, and optical transceiver (2026-05-12),

10. 12586982 - Wavelength tunable laser device (2026-03-24),

11. 12560761 - Photodetector and photonic integrated device (2026-02-24),

12. 12510714 - Optical integrated circuit module and optical communication apparatus (2025-12-30),

13. 12487400 - Optical device, substrate type optical waveguide element, optical communication apparatus, and inter-waveguide transition method (2025-12-02),

14. 12376387 - Semiconductor photodetector, receiver, and integrated optical device (2025-07-29),

15. 12360407 - Optical device and optical communication device (2025-07-15),

Company Overview

Fujitsu Optical Components Limited, based in Kawasaki, Japan, specializes in the development and manufacturing of advanced optical communication technologies. The company focuses on a range of core technologies, including wavelength tunable lasers, photodetectors, optical integrated circuits, and various optical communication apparatuses. Their innovations also encompass optical modulators, transceivers, waveguides, and amplifiers, positioning them as a key player in the optical communication sector, catering to the evolving needs of global telecommunications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

250 Patents

#14 in Kawasaki

#610 in Japan

#3,487 in the World

Kawasaki, Japan

Fujitsu Optical Components Limited

Forward Citations = 524

130 inventors:

Masaki Sugiyama (77 out of 118 patents)

Yoshinobu Kubota (24 out of 45 patents)

Masaharu Doi (19 out of 63 patents)

4. Shinji Maruyama (14 out of 22 patents)

5. Kohei Shibata (14 out of 38 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fujitsu Optical Components Limited. Retrieved from https://idiyas.com/company/fujitsu-optical-components

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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