Tokyo, Japan

Sugiyama Seisakusho Co., Ltd.


USPTO Granted Patents = 1


Forward Citations = 2

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6 inventors (with patents filed for the assignee):

goldMedal Gene Larson (1 out of 1 patent)

silverMedal Tsutomu Ishiwata (1 out of 1 patent)

bronzeMedal Yoshiyasu Kogure (1 out of 1 patent)

4 Yoshihisa Kamiya (1 out of 1 patent)

5 Hiroyuki Kato (1 out of 68 patents)

6 Atsumi Ochiai (0 patent)


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 = 2

6 inventors:

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