Tokyo, Japan

Seiwa Optical Co., Ltd.


USPTO Granted Patents = 1

Trademarks = 3

Forward Citations = 0

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7 inventors (with patents filed for the assignee):

goldMedal Muneaki Tamura (1 out of 4 patents)

silverMedal Kazuhiko Koshimizu (1 out of 2 patents)

bronzeMedal Isao Okazaki (1 out of 3 patents)

4 Mitsuya Kawatsuki (1 out of 1 patent)

5 Kiyoshi Tsuda (1 out of 7 patents)

6 Kenta Saiki (1 out of 4 patents)

7 Shinji Akaike (1 out of 6 patents)


1 patent:

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USPTO Data Jan 1 1976 - Dec 9 2025

1 Patents

#5,752 in Tokyo

#15,591 in Japan

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Tokyo, Japan
Forward Citations = 0

7 inventors:

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