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Tokin Corporation

USPTO Granted Patents = 161

% Expired Patents = 4.3

EPO Patents = 7

Trademarks = 9

Forward Citations = 1,800

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271 inventors (with patents filed for the assignee):

Shigeyoshi Yoshida (16 out of 36 patents)

Akiri Urata (10 out of 15 patents)

Mitsuharu Sato (8 out of 13 patents)

4. Kenichi Chatani (7 out of 9 patents)

5. Katsunori Kumasaka (7 out of 9 patents)

6. Tetsuo Yoshida (7 out of 8 patents)

7. Yoshiaki Fuda (7 out of 7 patents)

8. Yasuhisa Sugawara (6 out of 20 patents)

9. Yuichi Tokano (6 out of 6 patents)

10. Teruhiko Fujiwara (5 out of 23 patents)

11. Masami Ishijima (5 out of 11 patents)

12. Koichi Kondo (5 out of 13 patents)

13. Koji Kamei (5 out of 13 patents)

14. Kazuo Minegishi (5 out of 5 patents)

15. Masakazu Abe (5 out of 6 patents)

Core Competencies:

Solid-Electrolytic Capacitor

Electric Double-Layer Capacitor

Noise Filter

Magnetic Core

Pyroelectric Infrared Sensor

Inductor

Composite Magnetic Material

Soft Magnetic Powder

Electromagnetic Interference

Manufacturing Method

Alloy Powder

Vibration Actuator

161 patents: Sort by Forward Citations

1. 12695193 - Antenna module (2026-07-28),

2. 12695025 - Reactor (2026-07-28),

3. 12688958 - Rare-earth cobalt permanent magnet, manufacturing method therefor, and device (2026-07-21),

4. 12640293 - MnZn-based ferrite and method for producing same (2026-05-26),

5. 12630477 - MnZn-based ferrite (2026-05-19),

6. 12614678 - Solid-electrolytic capacitor and method for manufacturing solid-electrolytic capacitor (2026-04-28),

7. 12609232 - Magnetic core housing and noise reduction device (2026-04-21),

8. 12609222 - Rare-earth cobalt permanent magnet, method of manufacturing the same, and device (2026-04-21),

9. 12573566 - Electric double-layer capacitor and its manufacturing method using an aqueous electrolytic solution (2026-03-10),

10. 12567538 - Method of manufacturing a dust core and the dust core (2026-03-03),

11. 12567535 - Magnetic sheet (2026-03-03),

12. 12529605 - Pyroelectric infrared sensor and electronic device comprising pyroelectric infrared sensor (2026-01-20),

13. 12431853 - Noise filter (2025-09-30),

14. 12340953 - Solid electrolytic capacitor and method for manufacturing solid electrolytic capacitor with improved anode lead-out wire (2025-06-24),

15. 12338514 - Alloy powder, nanocrystalline powder and magnetic core (2025-06-24),

TOKIN Corporation is a global electronics manufacturer specializing in passive components and wireless communication solutions. With over 50 years of experience, TOKIN has become a trusted name in the industry, providing high-quality products and innovative solutions to customers worldwide. Through cutting-edge technology and continuous R&D efforts, TOKIN strives to meet the evolving needs of various sectors, including automotive, telecommunications, consumer electronics, and industrial applications. Visit our website to learn more about our comprehensive range of products and solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Tokin Corporation

161 Patents

#2 in Miyagi

#819 in Japan

#5,112 in the World

Tokin Corporation

Forward Citations = 1,800

271 inventors:

Shigeyoshi Yoshida (16 out of 36 patents)

Akiri Urata (10 out of 15 patents)

Mitsuharu Sato (8 out of 13 patents)

4. Kenichi Chatani (7 out of 9 patents)

5. Katsunori Kumasaka (7 out of 9 patents)

Please report any incorrect information to [email protected]

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