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Yamanashi, Japan

Fujitsu Quantum Devices Limited

USPTO Granted Patents = 109

Forward Citations = 893

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101 inventors (with patents filed for the assignee):

Osamu Baba (11 out of 12 patents)

Naoyuki Miyazawa (9 out of 11 patents)

Yutaka Mimino (9 out of 9 patents)

4. Yoshio Aoki (8 out of 8 patents)

5. Muneharu Gotoh (8 out of 8 patents)

6. Hajime Matsuda (7 out of 11 patents)

7. Yoshihiro Yoneda (6 out of 48 patents)

8. Naoya Ikechi (5 out of 6 patents)

9. Takahiro Tan (5 out of 6 patents)

10. Takayuki Watanabe (5 out of 26 patents)

11. Kozo Makiyama (4 out of 73 patents)

12. Taro Hasegawa (4 out of 13 patents)

13. Takuya Fujii (4 out of 26 patents)

14. Mitsuji Nunokawa (4 out of 9 patents)

15. Ikuo Hanawa (4 out of 4 patents)

Core Competencies:

Semiconductor Devices

Mushroom Electrode

Optical Semiconductor Devices

High-Frequency Switch

Photodetection Devices

Interdigital Capacitor

Laser Devices

Field Effect Transistor

Optical Modulators

Transmission Lines

Manufacturing Processes

Electronic Devices

109 patents: Sort by Forward Citations

1. 8133775 - Semiconductor device with mushroom electrode and manufacture method thereof (2012-03-13),

2. 7919415 - Process of manufacturing a semiconductor device (2011-04-05),

3. 7888193 - Semiconductor device with mushroom electrode and manufacture method thereof (2011-02-15),

4. 7709310 - Semiconductor device with mushroom electrode and manufacture method thereof (2010-05-04),

5. 7626443 - Switching circuit, switching module and method of controlling the switching circuit (2009-12-01),

6. 7570919 - Transmitter, receiver, and radio communications system and method (2009-08-04),

7. 7368750 - Semiconductor light-receiving device (2008-05-06),

8. 7352086 - Switching circuit, switching module and method of controlling the switching circuit (2008-04-01),

9. 7335542 - Semiconductor device with mushroom electrode and manufacture method thereof (2008-02-26),

10. 7303933 - Process of manufacturing a semiconductor device (2007-12-04),

11. 7267893 - Optical multilayer film and optical semiconductor device including the same (2007-09-11),

12. 7253513 - High-frequency switch device and electronic device using the same (2007-08-07),

13. 7223645 - Semiconductor device with mushroom electrode and manufacture method thereof (2007-05-29),

14. 7157756 - Field effect transistor (2007-01-02),

15. 7144164 - Optical device and method of manufacturing the same (2006-12-05),

Fujitsu Quantum Devices Limited is a subsidiary of Fujitsu Limited, specializing in the development and production of cutting-edge quantum devices. With a focus on quantum technologies, the company aims to create innovative solutions for various industries, including telecommunications, AI, and IoT. Fujitsu Quantum Devices Limited strives to deliver high-quality products and contribute to the advancement of the quantum computing and quantum communications fields.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

109 Patents

#2 in Yamanashi 400-0862

#1,037 in Japan

#6,997 in the World

Yamanashi, Japan

Fujitsu Quantum Devices Limited

Forward Citations = 893

101 inventors:

Osamu Baba (11 out of 12 patents)

Naoyuki Miyazawa (9 out of 11 patents)

Yutaka Mimino (9 out of 9 patents)

4. Yoshio Aoki (8 out of 8 patents)

5. Muneharu Gotoh (8 out of 8 patents)

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