25 Utility Patents
#5,432 in Tokyo
#26,415 in Japan
#122,850 in the World
Forward Citations = 80
Company Filing History:
Nippon Steel Sumitomo Metal Corporation
Nippon Steel Corporation

4. 2 out of 66
Nippon Steel & Sumikin Stainless Steel Corporation
5. 2 out of 17
Sankei Giken Kogyo Co., Ltd.
where one patent can have more than one assignee
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