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For the Inventor, By the Inventor

Hyogo, Japan

Japan Superconductor Technology Inc.

Calculating rank
USPTO Granted Patents = 14

% Expired Patents = 35.7


Trademarks = 1

Forward Citations = 16

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26 inventors (with patents filed for the assignee):

goldMedal Mamoru Hamada (5 out of 6 patents)

silverMedal Yoshinori Yanagisawa (4 out of 10 patents)

bronzeMedal 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:

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),
Company Overview
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 synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

14 Patents

#56 in Hyogo

#3,585 in Japan

#42,312 in the World

Hyogo, JP
Hyogo, Japan

Japan Superconductor Technology Inc.

Forward Citations = 16

26 inventors:

goldMedal Mamoru Hamada (5 out of 6 patents)

silverMedal Yoshinori Yanagisawa (4 out of 10 patents)

bronzeMedal Satoshi Ito (4 out of 6 patents)

4.  Hitoshi Miyata (2 out of 2 patents)

5.  Atsuko Oka (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Japan Superconductor Technology Inc.. Retrieved from https://idiyas.com/company/japan-superconductor-technology

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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