11 Utility Patents
#4,452 in Yokohama
#75,484 in Japan
#350,486 in the World
Forward Citations = 46
Company Filing History:

Nippon Kokan Kabushiki Kaisha

4. 2 out of 58

where one patent can have more than one assignee
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#4,452 in Yokohama
#75,484 in Japan
#350,486 in the World
Company Filing History:



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