For the Inventor, By the Inventor

Enter assignee name

Kanagawa, Japan

Fujitsu Telecom Networks Limited

Calculating rank

USPTO Granted Patents = 42

% Expired Patents = 92.9

Forward Citations = 38

Loading Chart...

Loading Chart...

57 inventors (with patents filed for the assignee):

Shota Mori (13 out of 27 patents)

Wataru Kawasaki (7 out of 12 patents)

Reiko Sato (6 out of 7 patents)

4. Kimio Uekama (4 out of 9 patents)

5. Kenji Watanabe (3 out of 77 patents)

6. Koji Matsunaga (2 out of 22 patents)

7. Ryo Maruyama (2 out of 10 patents)

8. Tomoyuki Suzuki (2 out of 36 patents)

9. Koji Bato (2 out of 9 patents)

10. Tatsuya Toyozumi (2 out of 9 patents)

11. Toshiki Honda (2 out of 8 patents)

12. Tatsuhiko Saito (2 out of 4 patents)

13. Takehiro Fujita (2 out of 26 patents)

14. Koji Tanonaka (2 out of 4 patents)

15. Akihisa Kawaguchi (2 out of 4 patents)

Core Competencies:

Optical Packet Switching

Communication Apparatus

Wavelength Division Multiplexing

Raman Amplifier

Transmission System

Optical Transmission Device

Flow Rate Monitoring

Excitation Light Source

Ring Network

Optical Receiving Device

PON System

Variable Dispersion Compensation

42 patents: Sort by Forward Citations

1. 9167319 - Optical packet switching system (2015-10-20),

2. 9166815 - Communication apparatus and communication controlling method in ring network (2015-10-20),

3. 9143262 - Optical packet transmitting/receiving system (2015-09-22),

4. 9124499 - Frame transmission system (2015-09-01),

5. 9112637 - Optical transmission device and method (2015-08-18),

6. 9077475 - Optical packet switching system and method for controlling the peak power (2015-07-07),

7. 9020340 - Optical packet switching system (2015-04-28),

8. 8976809 - Communication system, monitoring device of ring network, and flow rate monitoring method of ring network (2015-03-10),

9. 8953473 - Communication device (2015-02-10),

10. 8948033 - Communication system, communication apparatus, and ring network monitoring method (2015-02-03),

11. 8947767 - Excitation light source for raman amplification, raman amplifier, and optical transmission system (2015-02-03),

12. 8923694 - Optical receiving device (2014-12-30),

13. 8897638 - Optical packet switching system (2014-11-25),

14. 8891972 - Optical receiving apparatus and optical transmission system (2014-11-18),

15. 8891966 - Optical communication device and signal adjusting method (2014-11-18),

Company Overview

Fujitsu Telecom Networks Limited, headquartered in Kanagawa, Japan, specializes in advanced communication technologies. The company focuses on the development and manufacturing of optical packet switching systems, communication apparatus, and optical transmission systems. Its expertise extends to Raman amplifiers, wavelength division multiplexing, and ring network monitoring, positioning it as a key player in the telecommunications sector. Fujitsu Telecom Networks is committed to enhancing network performance and reliability through innovative optical solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

42 Patents

#69 in Kanagawa

#1,917 in Japan

#16,388 in the World

Kanagawa, Japan

Fujitsu Telecom Networks Limited

Forward Citations = 38

57 inventors:

Shota Mori (13 out of 27 patents)

Wataru Kawasaki (7 out of 12 patents)

Reiko Sato (6 out of 7 patents)

4. Kimio Uekama (4 out of 9 patents)

5. Kenji Watanabe (3 out of 77 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fujitsu Telecom Networks Limited. Retrieved from https://idiyas.com/company/fujitsu-telecom-networks

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]

Loading…