6 Utility Patents
#25,201 in Tokyo
#139,573 in Japan
#695,828 in the World
Forward Citations = 8
Company Filing History:
Nippon Steel & Sumikin Materials Co., Ltd.
Nippon Steel & Sumitomo Metal Corporation
Nippon Steel Corporation
4. 1 out of 2
Tnk Sanwa Precision Co., Ltd.
5. 1 out of 21,788

where one patent can have more than one assignee
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