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For the Inventor, By the Inventor

Tokyo, Japan

Hitacji, Ltd.


USPTO Granted Patents = 1

Forward Citations = 5

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3 inventors (with patents filed for the assignee):

goldMedal Toshihiko Tanaka (1 out of 122 patents)

silverMedal Norio Hasegawa (1 out of 108 patents)

bronzeMedal Tsuneo Terasawa (1 out of 56 patents)


1 patent:

1. 6677107 - Method for manufacturing semiconductor integrated circuit device, optical mask used therefor, method for manufacturing the same, and mask blanks used therefor (2004-01-13),
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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#5,742 in Tokyo

#15,559 in Japan

...
Tokyo, Japan

Hitacji, Ltd.

Forward Citations = 5

3 inventors:

goldMedal Toshihiko Tanaka (1 out of 122 patents)

silverMedal Norio Hasegawa (1 out of 108 patents)

bronzeMedal Tsuneo Terasawa (1 out of 56 patents)

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