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Fujikura Limited

USPTO Granted Patents = 1,805

CIPO Patents = 28

EPO Patents = 499

Trademarks = 10

Forward Citations = 10,135

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1,404 inventors (with patents filed for the assignee):

Ken Osato (68 out of 71 patents)

Ning Guan (63 out of 63 patents)

Shoichiro Matsuo (60 out of 60 patents)

4. Katsuhiro Takenaga (55 out of 55 patents)

5. Kunihiko Fujiwara (54 out of 57 patents)

6. Kuniharu Himeno (52 out of 52 patents)

7. Yusuke Uemichi (42 out of 42 patents)

8. Masataka Mochizuki (42 out of 68 patents)

9. Akito Nishimura (35 out of 36 patents)

10. Kenji Okada (32 out of 32 patents)

11. Noriyuki Kawanishi (31 out of 31 patents)

12. Kazuhiro Takizawa (31 out of 42 patents)

13. Naoki Okada (31 out of 33 patents)

14. Kenichi Okada (29 out of 69 patents)

15. Shinichi Sakamoto (28 out of 28 patents)

Core Competencies:

Optical Computing

Optical Transceiver

Multi-Core Optical Fiber

Phased Array Antenna

Optical Fiber Fusion Splicer

Digital Phase Shift Circuit

Optical Connector

Laser Device

Sensor Device

Optical Wiring Unit

Cleaning Tool

Optical Cable

1,805 patents: Sort by Forward Citations

1. 12510719 - Accommodation unit and method for manufacturing accommodation unit (2025-12-30),

2. 12508632 - Cleaning tool and cleaning method (2025-12-30),

3. 12500387 - Optical amplification apparatus (2025-12-16),

4. 12500320 - Digital phase shifter (2025-12-16),

5. 12481305 - Optical computing system (2025-11-25),

6. 12474535 - Optical wiring unit and optical termination box (2025-11-18),

7. 12471251 - Optical transceiver (2025-11-11),

8. 12468109 - Optical input/output device (2025-11-11),

9. 12467824 - Inspection method for optical fiber, inspection device for optical fiber, and method for manufacturing optical fiber-wound bobbin (2025-11-11),

10. 12463670 - Output control method of radio communication module, manufacturing method of radio communication module and output control unit of radio communication module (2025-11-04),

11. 12463340 - Phased array antenna module (2025-11-04),

12. 12460845 - Cold plate (2025-11-04),

13. 12459853 - Multi-core optical fiber preform, multi-core optical fiber preform production method, and multi-core optical fiber production method (2025-11-04),

14. 12446185 - Cold plate (2025-10-14),

15. 12442989 - Optical fiber cable connection structure and method for manufacturing optical fiber cable (2025-10-14),

Fujikura Limited is a global leader in the manufacturing of electrical and optical products. With over a century of experience, they specialize in the development, production, and sales of cables, fibers, and electronic components. Their innovative solutions, advanced technologies, and commitment to quality have earned them a strong reputation in various industries including telecommunications, automotive, energy, and electronics.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

1,805 Patents

#61 in Tokyo

#128 in Japan

#547 in the World

Fujikura Limited

Forward Citations = 10,135

1,404 inventors:

Ken Osato (68 out of 71 patents)

Ning Guan (63 out of 63 patents)

Shoichiro Matsuo (60 out of 60 patents)

4. Katsuhiro Takenaga (55 out of 55 patents)

5. Kunihiko Fujiwara (54 out of 57 patents)

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