For the Inventor, By the Inventor

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Mitsumi Electric, Ltd.

USPTO Granted Patents = 28

EPO Patents = 10

Forward Citations = 10

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54 inventors (with patents filed for the assignee):

Yuki Takahashi (4 out of 290 patents)

Yasutaka Kitamura (4 out of 40 patents)

Masaharu Kagami (4 out of 25 patents)

4. Kai Masamoto (4 out of 5 patents)

5. Tomohiko Osaka (3 out of 49 patents)

6. Yoichi Takano (3 out of 45 patents)

7. Yuki Otsuka (3 out of 7 patents)

8. Yu Saitoh (2 out of 34 patents)

9. Takeyoshi Masuda (2 out of 118 patents)

10. Satoshi Arima (2 out of 11 patents)

11. Masayoshi Sugawara (1 out of 42 patents)

12. Hiroyuki Sadohara (1 out of 7 patents)

13. Kosuke Yamamoto (1 out of 14 patents)

14. Kosuke Uchida (1 out of 30 patents)

15. Tomoyuki Murakami (1 out of 9 patents)

28 patents: Sort by Forward Citations

1. 12748303 - Rotary reciprocating actuator and optical scanning device (2026-09-29),

2. 12742825 - Power supply circuit, voltage monitoring circuit, and power supply device (2026-09-22),

3. 12730301 - Movable device, MEMS device and optical scanning apparatus (2026-09-08),

4. 12717114 - Optical-element driving device, camera module, and camera-mounted device (2026-08-25),

5. 12687763 - Optical element driving device, camera module, and camera-mounted device (2026-07-21),

6. 12684853 - Silicon carbide semiconductor device (2026-07-14),

7. 12684850 - Silicon carbide semiconductor device (2026-07-14),

8. 12676549 - Direct current power supply apparatus (2026-07-07),

9. 12671400 - Semiconductor integrated circuit, apparatus including the same, and bus system (2026-06-30),

10. 12656596 - Rotary reciprocating drive actuator (2026-06-16),

11. 12651970 - Switching power supply device and power control semiconductor device (2026-06-09),

12. 12647035 - Semiconductor device for switching power supply and switching power supply device (2026-06-02),

13. 12635203 - Silicon carbide semiconductor device (2026-05-19),

14. 12622030 - Silicon carbide semiconductor device (2026-05-05),

15. 12620820 - Secondary battery protection circuit, battery pack, battery system, and method for protecting secondary battery (2026-05-05),

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

28 Patents

#1,111 in Tokyo

#2,411 in Japan

#23,244 in the World

Mitsumi Electric, Ltd.

Forward Citations = 10

54 inventors:

Yuki Takahashi (4 out of 290 patents)

Yasutaka Kitamura (4 out of 40 patents)

Masaharu Kagami (4 out of 25 patents)

4. Kai Masamoto (4 out of 5 patents)

5. Tomohiko Osaka (3 out of 49 patents)

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