36 Utility Patents
#2 in Yamagata
#14,500 in Japan
#68,355 in the World
Forward Citations = 221
Company Filing History:
Kabushiki Kaisha Topcon

National University Corporation Asahikawa Medical University
4. 2 out of 1,467

5. 2 out of 968

where one patent can have more than one assignee
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