27 Utility Patents
#4,627 in Tokyo
#22,488 in Japan
#102,442 in the World
Forward Citations = 24
Company Filing History:
Nippon Steel & Sumitomo Metal Corporation
Sumitomo Metal Industries, Inc.
4. 1 out of 14,987
5. 1 out of 1,960
where one patent can have more than one assignee
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