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Sanwa Denki Kogyo Co., Ltd.

USPTO Granted Patents = 33

EPO Patents = 13

Forward Citations = 413

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49 inventors (with patents filed for the assignee):

Yasuhiro Watanabe (10 out of 110 patents)

Takashi Sato (8 out of 160 patents)

Yasusuke Hioki (7 out of 7 patents)

4. Takashi Tsukamoto (4 out of 7 patents)

5. Mikio Hojo (4 out of 5 patents)

6. Katsuyuki Nakano (4 out of 4 patents)

7. Yuji Watanabe (4 out of 33 patents)

8. Katsunori Kitagawa (4 out of 5 patents)

9. Kenji Furufuji (4 out of 4 patents)

10. Tsuyoshi Hisano (4 out of 5 patents)

11. Toshiaki Nakano (3 out of 15 patents)

12. Akira Kawahara (3 out of 8 patents)

13. Atsushi Nishio (3 out of 122 patents)

14. Yasuhiro Ando (3 out of 23 patents)

15. Kazunori Kanayama (3 out of 13 patents)

33 patents: Sort by Forward Citations

1. 12360326 - Cassette case with integrated adapter for optical connector (2025-07-15),

2. 10983287 - Connection detecting mechanism of optical connector plug (2021-04-20),

3. 10890731 - Adapter with LC-type two-core shutter (2021-01-12),

4. 10823916 - LC-type simplified optical connector (2020-11-03),

5. 10739527 - Miniature adapter for MPO plug (2020-08-11),

6. 10545295 - Optical adapter with shutter (2020-01-28),

7. 10520685 - Optical connector (2019-12-31),

8. 10317630 - Tab for optical connector engagement and disengagement (2019-06-11),

9. 10209457 - Protection cap for optical connector plug (2019-02-19),

10. 10139581 - Patch panel (2018-11-27),

11. 9891391 - Boot for optical connector ferrule (2018-02-13),

12. 9778423 - Boot for optical connector ferrule (2017-10-03),

13. 9684137 - Optical connector ferrule (2017-06-20),

14. D772170 - Dustcap for optical adapter (2016-11-22),

15. 9453963 - Dust proofing shutter built-in adapter of LC type optical connector (2016-09-27),

Sanwa Denki Kogyo Co., Ltd. is a leading provider of electrical and electronics products, offering innovative solutions to various industries. With a strong focus on quality, reliability, and customer satisfaction, Sanwa Denki Kogyo has become a trusted name in the market. The company specializes in manufacturing and distributing electrical components, wiring devices, power supply units, and lighting equipment. With a commitment to technological advancements and continuous improvement, Sanwa Denki Kogyo strives to meet the evolving needs of its clients and contribute to a sustainable future.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

33 Patents

#888 in Tokyo

#2,147 in Japan

#19,554 in the World

Sanwa Denki Kogyo Co., Ltd.

Forward Citations = 413

49 inventors:

Yasuhiro Watanabe (10 out of 110 patents)

Takashi Sato (8 out of 160 patents)

Yasusuke Hioki (7 out of 7 patents)

4. Takashi Tsukamoto (4 out of 7 patents)

5. Mikio Hojo (4 out of 5 patents)

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