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For the Inventor, By the Inventor

Tokyo, Japan

Hidefumi Hirai


USPTO Granted Patents = 2

Forward Citations = 10

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7 inventors (with patents filed for the assignee):

goldMedal Hidefumi Hirai (2 out of 16 patents)

silverMedal Makoto Komiyama (1 out of 25 patents)

bronzeMedal Hisashi Mihori (1 out of 8 patents)

4.  Kazuhiro Saito (1 out of 180 patents)

5.  Tsutomu Nakamura (1 out of 11 patents)

6.  Rikinori Terakado (1 out of 1 patent)

7.  Susumu Hara (1 out of 7 patents)


2 patents:

1. 5319134 - Process for introducing a carboxyl group to an aromatic carboxylic acid (1994-06-07),
2. 4525180 - Process for recovery of ethylene from gaseous mixture (1985-06-25),
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USPTO Data Jan 1 1976 - Dec 2 2025

2 Patents

#4,069 in Tokyo

#10,986 in Japan

...
Tokyo, Japan

Hidefumi Hirai

Forward Citations = 10

7 inventors:

goldMedal Hidefumi Hirai (2 out of 16 patents)

silverMedal Makoto Komiyama (1 out of 25 patents)

bronzeMedal Hisashi Mihori (1 out of 8 patents)

4.  Kazuhiro Saito (1 out of 180 patents)

5.  Tsutomu Nakamura (1 out of 11 patents)

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