39 Utility Patents
#2,781 in Tokyo
#12,502 in Japan
#59,512 in the World
Forward Citations = 8
Company Filing History:
Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
Nippon Steel Chemical & Material Co., Ltd.
4. 1 out of 42
Nippon Steel & Sumikin Materials Co., Ltd.
where one patent can have more than one assignee
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