49 Utility Patents
#1,834 in Tokyo
#8,089 in Japan
#39,922 in the World
Forward Citations = 119
Company Filing History:

Nippon Steel & Sumitomo Metal Corporation
Nippon Steel Corporation
4. 10 out of 90,402

5. 1 out of 2,504

where one patent can have more than one assignee
Get your Inventor Badge Today