68 Utility and 6 Design Patents
#927 in Tokyo
#3,959 in Japan
#21,041 in the World
rank by utility patentsForward Citations = 539
Company Filing History:
Nippon Steel Corporation

Nippon Steel & Sumitomo Metal Corporation
4. 6 out of 831,952 patents
Other
5. 5 out of 21,351

where one patent can have more than one assignee
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