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For the Inventor, By the Inventor

Mie, Japan

Sumitomo Wiring Systems, Limited


USPTO Granted Patents = 6,192



Trademarks = 8

Forward Citations = 35,821

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2,623 inventors (with patents filed for the assignee):

goldMedal Hiroki Hirai (169 out of 187 patents)

silverMedal Masaaki Tabata (113 out of 138 patents)

bronzeMedal Hajime Kawase (103 out of 106 patents)

4.  Toshifumi Ichio (95 out of 97 patents)

5.  Makoto Higashikozono (95 out of 98 patents)

6.  Yasuo Omori (94 out of 96 patents)

7.  Housei Mizuno (87 out of 87 patents)

8.  Hideto Nakamura (86 out of 86 patents)

9.  Hiroyoshi Maesoba (78 out of 79 patents)

10.  Osamu Nakayama (78 out of 78 patents)

11.  Tsutomu Tanaka (72 out of 80 patents)

12.  Takeshi Hagihara (69 out of 72 patents)

13.  Yukihiro Fukatsu (65 out of 65 patents)

14.  Ryotaro Ishikawa (62 out of 62 patents)

15.  Toshikazu Sakurai (62 out of 65 patents)


Core Competencies:
Electromagnetic Shielding
Circuit Assembly
Vehicle Communication System
Electrical Connection Unit
Wiring Module
High-Voltage Connector
Wire Harness
Electrical Junction Box
Power Conversion Device
Detection Device
Connector Technology
Energy Storage Module

6,192 patents:

1. 12531426 - Switch device, current determination method and computer program (2026-01-20),
2. 12531405 - Relay device (2026-01-20),
3. 12531379 - Cable-equipped connector (2026-01-20),
4. 12531364 - Connector with sliding circumferentially rotating inner housing (2026-01-20),
5. 12526348 - Vehicle-mounted relay device, vehicle-mounted communication system, and communication control method (2026-01-13),
6. 12525788 - Protector apparatus (2026-01-13),
7. 12525774 - Electric junction box assembly with removable cover (2026-01-13),
8. 12525734 - Connector (2026-01-13),
9. 12522159 - Wire harness (2026-01-13),
10. 12522158 - Door wiring module and composite service hole cover (2026-01-13),
11. 12520440 - Communication device and communication apparatus (2026-01-06),
12. 12519677 - Communication device, communication system, and communication method (2026-01-06),
13. 12519304 - Power supply control device (2026-01-06),
14. 12519273 - Connector unit with fixing structure for electromagnetic shielding member (2026-01-06),
15. 12519272 - Shield connector with finger touch preventing resin portion (2026-01-06),
Sumitomo Wiring Systems, Limited is a global manufacturer and provider of wiring harnesses and related electrical components for various industries including automotive, aerospace, and medical. With a strong focus on innovation, quality, and customer satisfaction, the company offers advanced solutions for efficient and reliable electrical systems. Visit their website for more information.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 20 2026

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6,192 Patents

#1 in Mie

#37 in Japan

#128 in the World

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Mie, Japan

Sumitomo Wiring Systems, Limited

Forward Citations = 35,821

2,623 inventors:

goldMedal Hiroki Hirai (169 out of 187 patents)

silverMedal Masaaki Tabata (113 out of 138 patents)

bronzeMedal Hajime Kawase (103 out of 106 patents)

4.  Toshifumi Ichio (95 out of 97 patents)

5.  Makoto Higashikozono (95 out of 98 patents)

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