15 Utility and 52 Design Patents
#40 in Tokyo
#101 in Japan
#1,933 in the World
rank by design patentsForward Citations = 635
Company Filing History:
Kabushiki Kaisha Topcon
Nippon Steel Corporation

4. 5 out of 21,351

5. 1 out of 1,098
Nippon Steel & Sumitomo Metal Corporation
where one patent can have more than one assignee
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