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For the Inventor, By the Inventor

Kanagawa, Japan

Fuji Electric Co., Ltd.


USPTO Granted Patents = 4,806



Trademarks = 14

Forward Citations = 30,141

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2,664 inventors (with patents filed for the assignee):

goldMedal Tatsuya Naito (95 out of 101 patents)

silverMedal Tatsuhiko Fujihira (86 out of 95 patents)

bronzeMedal Katsunori Ueno (81 out of 92 patents)

4.  Yuichi Onozawa (75 out of 78 patents)

5.  Takashi Yoshimura (71 out of 71 patents)

6.  Yasuyuki Hoshi (64 out of 65 patents)

7.  Masashi Akahane (61 out of 62 patents)

8.  Takeyoshi Nishimura (55 out of 59 patents)

9.  Akimasa Kinoshita (54 out of 54 patents)

10.  Hiroshi Takishita (53 out of 53 patents)

11.  Yoshinari Ikeda (52 out of 57 patents)

12.  Ryuji Yamada (51 out of 51 patents)

13.  Shinsuke Harada (50 out of 68 patents)

14.  Masaharu Yamaji (49 out of 50 patents)

15.  Yuichi Harada (48 out of 50 patents)


Core Competencies:
Semiconductor Device
Silicon Carbide Semiconductor
Power Supply Circuit
Control Circuit
Uninterruptible Power Supply
Insulated Gate Bipolar Transistor
Semiconductor Module
Manufacturing Method
Integrated Circuit
Physical Quantity Sensor
Sensing Element
Failed Element Determination

4,806 patents:

1. 12500210 - Module (2025-12-16),
2. 12500140 - Semiconductor device and method for manufacturing same (2025-12-16),
3. 12495596 - Semiconductor device and manufacturing method (2025-12-09),
4. 12495564 - Semiconductor device (2025-12-09),
5. 12495529 - Power conversion device and DC-DC converter device (2025-12-09),
6. 12494451 - Semiconductor device (2025-12-09),
7. 12490499 - Silicon carbide semiconductor device (2025-12-02),
8. 12489363 - Switching control circuit, control circuit, and power supply circuit (2025-12-02),
9. 12489103 - Semiconductor module (2025-12-02),
10. 12489095 - Semiconductor apparatus (2025-12-02),
11. 12489041 - Semiconductor module, semiconductor device, and semiconductor device manufacturing method (2025-12-02),
12. 12489031 - Semiconductor device and manufacturing method thereof (2025-12-02),
13. 12482727 - Semiconductor device manufacturing method and semiconductor device (2025-11-25),
14. 12477815 - Semiconductor device (2025-11-18),
15. 12477787 - Silicon carbide semiconductor device (2025-11-18),
FUJIELECTRIC CO., LTD. is a globally renowned technology-focused company providing innovative solutions for energy, industrial, and social infrastructures. Operating with a customer-centric approach, they offer cutting-edge products and services in areas like power generation, distribution, and control systems; electronic devices; and advanced machinery, contributing to a sustainable future.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

...
4,806 Patents

#2 in Kanagawa

#51 in Japan

#187 in the World

...
Kanagawa, Japan

Fuji Electric Co., Ltd.

Forward Citations = 30,141

2,664 inventors:

goldMedal Tatsuya Naito (95 out of 101 patents)

silverMedal Tatsuhiko Fujihira (86 out of 95 patents)

bronzeMedal Katsunori Ueno (81 out of 92 patents)

4.  Yuichi Onozawa (75 out of 78 patents)

5.  Takashi Yoshimura (71 out of 71 patents)

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