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Japan Superconductor Technology Inc.

USPTO Granted Patents = 14

% Expired Patents = 35.7

EPO Patents = 11

Trademarks = 1

Forward Citations = 16

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26 inventors (with patents filed for the assignee):

Mamoru Hamada (5 out of 6 patents)

Yoshinori Yanagisawa (4 out of 10 patents)

Satoshi Ito (4 out of 6 patents)

4. Hitoshi Miyata (2 out of 2 patents)

5. Atsuko Oka (2 out of 4 patents)

6. Kazuhito Tago (2 out of 2 patents)

7. Yoshio Okui (2 out of 2 patents)

8. Takashi Yamaguchi (1 out of 27 patents)

9. Tatsuoki Nagaishi (1 out of 50 patents)

10. Koji Inoue (1 out of 25 patents)

11. Kotaro Ohki (1 out of 16 patents)

12. Hideki Nakagome (1 out of 2 patents)

13. Kenichi Inoue (1 out of 25 patents)

14. Kyoji Zaitsu (1 out of 10 patents)

15. Yasuhide Nagahama (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 11980106 - Persistent current switch and superconducting device (2024-05-07),

2. 11828513 - Apparatus for recondensing helium for cryostat (2023-11-28),

3. 11732930 - Cooling container to which refrigerator is attachable (2023-08-22),

4. 11551842 - Superconducting magnet apparatus (2023-01-10),

5. 10699830 - Superconducting magnet device (2020-06-30),

6. 10656223 - Magnetic field generation device (2020-05-19),

7. 10580555 - Superconducting coil pre-cooling method and superconducting magnet apparatus (2020-03-03),

8. 10475562 - Method for maintaining refrigeration unit and refrigeration unit (2019-11-12),

9. 10330259 - Cryostat including gas phase volume-varying unit (2019-06-25),

10. 10097067 - Liquefaction system and power generation system (2018-10-09),

11. 10002697 - Superconducting magnet device (2018-06-19),

12. 9777883 - Superconducting magnet apparatus (2017-10-03),

13. 9655291 - Multilayer magnetic shield (2017-05-16),

14. 9543754 - Superconducting coil protection method and superconducting magnet device (2017-01-10),

Japan Superconductor Technology Inc. is a pioneering company based in Hyogo, Japan, specializing in the development and manufacturing of superconducting materials and devices. The organization focuses on advancing technologies that leverage superconductivity for various applications, including energy transmission, magnetic levitation, and medical imaging. With a commitment to innovation, the company plays a significant role in the global superconductivity landscape, contributing to advancements in both industrial and scientific fields.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

14 Patents

#56 in Hyogo

#3,573 in Japan

#42,168 in the World

Japan Superconductor Technology Inc.

Forward Citations = 16

26 inventors:

Mamoru Hamada (5 out of 6 patents)

Yoshinori Yanagisawa (4 out of 10 patents)

Satoshi Ito (4 out of 6 patents)

4. Hitoshi Miyata (2 out of 2 patents)

5. Atsuko Oka (2 out of 4 patents)

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