45 Utility and 1 Design Patents
#2,159 in Tokyo
#9,620 in Japan
#46,687 in the World
rank by utility patentsForward Citations = 299
Company Filing History:

Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation
4. 5 out of 832,575 patents
Other
5. 1 out of 973

where one patent can have more than one assignee
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