20 Utility Patents
#3,569 in Kanagawa
#36,620 in Japan
#169,328 in the World
Forward Citations = 10
Company Filing History:


Nippon Steel Corporation
4. 2 out of 95
Tokyo University of Science Foundation
5. 1 out of 1,098
Nippon Steel & Sumitomo Metal Corporation
where one patent can have more than one assignee
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