27 Utility Patents
#4,830 in Tokyo
#23,172 in Japan
#107,874 in the World
Forward Citations = 72
Company Filing History:
Nippon Steel Corporation
Nippon Steel & Sumitomo Metal Corporation

4. 1 out of 832,347 patents
Other
5. 1 out of 1,778
Mitsui Chemicals, Inc.
where one patent can have more than one assignee
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