Tokyo, Japan

Sumtak Corporation


USPTO Granted Patents = 2

Trademarks = 1

Forward Citations = 18

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3 inventors (with patents filed for the assignee):

goldMedal Katsuhiko Makino (1 out of 2 patents)

silverMedal Masato Suzuki (1 out of 104 patents)

bronzeMedal Takao Kano (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#4,063 in Tokyo

#10,976 in Japan

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Tokyo, Japan
Forward Citations = 18

3 inventors:

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