Tokyo, Japan

Japanese National Railway


USPTO Granted Patents = 2

Forward Citations = 10

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7 inventors (with patents filed for the assignee):

goldMedal Yoshio Ishii (1 out of 5 patents)

silverMedal Isaburo Igarashi (1 out of 1 patent)

bronzeMedal Kazuriki Iizuka (1 out of 1 patent)

4 Hiroshi Otsuka (1 out of 1 patent)

5 Osamu Oda (1 out of 1 patent)

6 Hiroji Noda (1 out of 1 patent)

7 Masaru Iwase (1 out of 1 patent)


2 patents:

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USPTO Data Jan 1 1976 - Dec 9 2025

2 Patents

#4,070 in Tokyo

#10,988 in Japan

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Tokyo, Japan
Forward Citations = 10

7 inventors:

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