79 Utility Patents
#702 in Tokyo
#2,851 in Japan
#15,826 in the World
Forward Citations = 120
Company Filing History:

Nippon Steel & Sumitomo Metal Corporation
Nippon Steel Corporation
4. 8 out of 139

5. 5 out of 1,640
Hitachi Chemical Company, Ltd.
where one patent can have more than one assignee
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