Tokyo, Japan

Sugiyama Seisakusyo Co., Ltd.


USPTO Granted Patents = 3

Forward Citations = 16

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2 inventors (with patents filed for the assignee):

goldMedal Kenichi Sugiyama (2 out of 6 patents)

silverMedal Kenichi Sugiyanma (1 out of 1 patent)


3 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

3 Patents

#3,271 in Tokyo

#8,780 in Japan

...
Tokyo, Japan
Forward Citations = 16

2 inventors:

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