11 Utility Patents
#2 in Kainan
#76,955 in Japan
#363,101 in the World
Forward Citations = 59
Company Filing History:

Nippon Steel & Sumitomo Metal Corporation
Sumitomo Metal Industries, Inc.
4. 1 out of 3,527
Nippon Steel Corporation
5. 1 out of 41

where one patent can have more than one assignee
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