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For the Inventor, By the Inventor

Osaka-fu, Japan

Sansha Electric Manufacturing Company, Limited


USPTO Granted Patents = 112


Trademarks = 7

Forward Citations = 1,156

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88 inventors (with patents filed for the assignee):

goldMedal Kenzo Danjo (38 out of 38 patents)

silverMedal Hideo Ishii (32 out of 32 patents)

bronzeMedal Haruo Moriguchi (26 out of 26 patents)

4.  Tetsuro Ikeda (24 out of 25 patents)

5.  Masao Katooka (24 out of 24 patents)

6.  Toshikazu Fujiyoshi (24 out of 24 patents)

7.  Toru Arai (16 out of 16 patents)

8.  Kunio Karino (13 out of 13 patents)

9.  Takeshi Morimoto (12 out of 24 patents)

10.  Atsushi Kinoshita (11 out of 12 patents)

11.  Shigeru Okamoto (11 out of 12 patents)

12.  Kenji Morimoto (9 out of 30 patents)

13.  Yuji Ikejiri (7 out of 7 patents)

14.  Hajime Katsushima (7 out of 7 patents)

15.  Masayuki Ono (7 out of 32 patents)


Core Competencies:
Power Supply System
Semiconductor Module
Welding Machine
Discharge Lamp Control
DC-DC Converter
Inverter Circuit
Arc Welding Apparatus
Heat Sink Arrangement
Power Semiconductor Module
Fan Control Unit
Electrical Power Recovery
Solar Cell Module Connector

112 patents:

1. 12388255 - Power supply system and power supply unit (2025-08-12),
2. 12206239 - Power supply system and power supply unit (2025-01-21),
3. 12131971 - Semiconductor module (2024-10-29),
4. 11935820 - Semiconductor device (2024-03-19),
5. 11923261 - Semiconductor device (2024-03-05),
6. 11901882 - Gate drive circuit (2024-02-13),
7. 11791244 - Semiconductor-module external terminal (2023-10-17),
8. D978938 - Welding machine (2023-02-21),
9. 11532998 - Power supply circuit for measuring transient thermal resistances of semiconductor device (2022-12-20),
10. D949808 - Semiconductor device (2022-04-26),
11. D949807 - Semiconductor module (2022-04-26),
12. 11265978 - Discharge lamp lighting control apparatus and lamp current supply method (2022-03-01),
13. D916039 - Semiconductor device (2021-04-13),
14. D904325 - Semiconductor module (2020-12-08),
15. 10515826 - Laminated member (2019-12-24),
Sansha Electric Manufacturing Company, Limited is a global leader in electrical equipment manufacturing and engineering solutions. With a rich history spanning over 60 years, we specialize in the design, production, and distribution of a wide range of high-quality electrical products. Our diverse portfolio includes transformers, switchgears, circuit breakers, distribution panels, and more. We cater to various industries such as power generation, transmission, distribution, construction, and infrastructure. Our commitment to innovation, reliability, and customer satisfaction has earned us a solid reputation in the industry. Visit our website to explore our products, services, and global presence.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

112 Patents

#1 in Osaka-fu

#1,026 in Japan

#6,858 in the World

...
Osaka-fu, Japan

Sansha Electric Manufacturing Company, Limited

Forward Citations = 1,156

88 inventors:

goldMedal Kenzo Danjo (38 out of 38 patents)

silverMedal Hideo Ishii (32 out of 32 patents)

bronzeMedal Haruo Moriguchi (26 out of 26 patents)

4.  Tetsuro Ikeda (24 out of 25 patents)

5.  Masao Katooka (24 out of 24 patents)

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