36 Utility and 22 Design Patents
#8 in Sanda
#14,464 in Japan
#68,209 in the World
rank by utility patentsForward Citations = 378
Company Filing History:

Sumitomo Metal Industries, Inc.

4. 7 out of 1,098
Nippon Steel & Sumitomo Metal Corporation
5. 1 out of 547

where one patent can have more than one assignee
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