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For the Inventor, By the Inventor

Kawasaki, Japan

Takashi Otsubo

USPTO Granted Patents = 2

Average Co-Inventor Count = 7.1

ph-index = 2

Forward Citations = 7(Granted Patents)


Location History:

  • Machida, JP (1979)
  • Kawasaki, JP (1992)

Company Filing History:

goldMedal2 out of 3,563 
 
Nippon Steel Corporation
 patents
silverMedal1 out of 173 
 
Nippon Steel Chemical Co., Ltd.
 patents
bronzeMedal1 out of 126 
 
Rikagaku Kenkyusho
 patents
where one patent can have more than one assignee

Years Active: 1979-1992

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2 patents (USPTO):Explore Patents
1. 5085748 - Process for enriching carbon 13 (1992-02-04),
2. 4142399 - Method for automatic quantitative measurement of hydrogen in a metal and (1979-03-06),
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