54 Utility Patents
#1,466 in Tokyo
#6,534 in Japan
#32,866 in the World
Forward Citations = 77
Company Filing History:

Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
4. 1 out of 1,357
Mitsubishi Rayon Company, Limited
5. 1 out of 629
Dainippon Ink and Chemicals, Incorporated
where one patent can have more than one assignee
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