21 Utility Patents
#6,366 in Tokyo
#32,608 in Japan
#147,027 in the World
Forward Citations = 571
Company Filing History:
Tokyo Kogaku Kikai Kabushiki Kaisha
Kabushiki Kaisha Topcon
Other
4. 2 out of 2
University of Miami, School of Medicine, Dept. of Ophthalmology
5. 1 out of 448
where one patent can have more than one assignee
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