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For the Inventor, By the Inventor

Gunma, Japan

Mitsuba Corporation


USPTO Granted Patents = 533

% Expired Patents = 25.7



Trademarks = 2

Forward Citations = 1,732

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633 inventors (with patents filed for the assignee):

goldMedal Toshiyuki Amagasa (30 out of 30 patents)

silverMedal Yoshichika Kawashima (25 out of 25 patents)

bronzeMedal Teppei Tokizaki (25 out of 25 patents)

4.  Ryo Ohori (24 out of 24 patents)

5.  Yasushi Yoshida (19 out of 23 patents)

6.  Hiroyuki Uchimura (16 out of 16 patents)

7.  Masaaki Kimura (15 out of 15 patents)

8.  Naoki Kojima (13 out of 27 patents)

9.  Takeshi Kanai (13 out of 13 patents)

10.  Yoshitaka Urano (12 out of 12 patents)

11.  Masaru Fujiwara (12 out of 12 patents)

12.  Takashi Hoshino (12 out of 19 patents)

13.  Koji Nara (12 out of 14 patents)

14.  Takeshi Ikeda (11 out of 15 patents)

15.  Hiroto Tanaka (11 out of 11 patents)


Core Competencies:
Electric Motor
Motor Control Device
Brushless Motor
Motor Device
Wiper Device
Deceleration Mechanism
Rotor
Stator
Fan Device
Speed Reduction Mechanism
Thermoelectric Conversion
Control System

533 patents:

1. 12738872 - Motor control device and motor control method (2026-09-15),
2. 12665467 - Motor with busbar terminal with overlapping layers with external connection terminal, coil terminal and coil terminal part (2026-06-23),
3. 12638065 - Reduction device (2026-05-26),
4. 12630086 - Injection molded body and method for manufacturing same (2026-05-19),
5. 12609574 - Motor and fan device (2026-04-21),
6. 12597827 - Control device, motor device, and oil pump device (2026-04-07),
7. 12592601 - Motor device (2026-03-31),
8. 12573915 - Motor with deceleration mechanism (2026-03-10),
9. 12512776 - Control device and communication method in control device (2025-12-30),
10. 12512724 - Motor device (2025-12-30),
11. 12500491 - Method for manufacturing stator core (2025-12-16),
12. 12500476 - Motor having a case for accommodating a stator (2025-12-16),
13. 12500472 - Motor device (2025-12-16),
14. 12470100 - Rotor, motor, and method for manufacturing rotor (2025-11-11),
15. 12463484 - Stator, motor, fan device, and coil winding method (2025-11-04),
Mitsuba Corporation, headquartered in Gunma, Japan, specializes in the development and manufacturing of electric motors and related technologies. The company focuses on core areas such as brushless motors, motor control devices, and various motor devices, including wiper and deceleration mechanisms. Mitsuba's expertise extends to the design and production of rotors and stators, positioning it as a key player in the automotive and industrial sectors, where reliable motor solutions are essential for performance and efficiency.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Mitsuba Corporation
533 Patents

#1 in Gunma

#367 in Japan

#1,826 in the World

Gunma, JP
Gunma, Japan

Mitsuba Corporation

Forward Citations = 1,732

633 inventors:

goldMedal Toshiyuki Amagasa (30 out of 30 patents)

silverMedal Yoshichika Kawashima (25 out of 25 patents)

bronzeMedal Teppei Tokizaki (25 out of 25 patents)

4.  Ryo Ohori (24 out of 24 patents)

5.  Yasushi Yoshida (19 out of 23 patents)

Please report any incorrect information to [email protected]
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