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For the Inventor, By the Inventor

Tokyo, Japan

Nippon Hardmetal Co., Ltd.


USPTO Granted Patents = 1

Forward Citations = 10

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4 inventors (with patents filed for the assignee):

goldMedal Masayuki Hashimura (1 out of 28 patents)

silverMedal Sakae Katayama (1 out of 3 patents)

bronzeMedal Tetsuo Sawashima (1 out of 1 patent)

4.  Hiroto Imamura (1 out of 3 patents)


1 patent:

1. 5123934 - Ceramics coated cemented-carbide tool with high-fracture resistance (1992-06-23),
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USPTO Data Jan 1 1976 - Jan 6 2026

1 Patents

#5,734 in Tokyo

#15,549 in Japan

...
Tokyo, Japan

Nippon Hardmetal Co., Ltd.

Forward Citations = 10

4 inventors:

goldMedal Masayuki Hashimura (1 out of 28 patents)

silverMedal Sakae Katayama (1 out of 3 patents)

bronzeMedal Tetsuo Sawashima (1 out of 1 patent)

4.  Hiroto Imamura (1 out of 3 patents)

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