Yokohama, Japan

K. K. Tube Forming


USPTO Granted Patents = 1

Forward Citations = 20

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6 inventors (with patents filed for the assignee):

goldMedal Toshifumi Yamamoto (1 out of 4 patents)

silverMedal Suehiro Hasshi (1 out of 6 patents)

bronzeMedal Noboru Ashikawa (1 out of 16 patents)

4 Masanobu Nakamura (1 out of 6 patents)

5 Tadayoshi Nakamura (1 out of 1 patent)

6 Tetsuro Saruwatari (1 out of 1 patent)


1 patent:

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USPTO Data Jan 1 1976 - Dec 9 2025

1 Patents

#170 in Yokohama

#15,591 in Japan

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Yokohama, Japan
Forward Citations = 20

6 inventors:

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