61 Utility and 11 Design Patents
#1,239 in Tokyo
#5,180 in Japan
#26,392 in the World
rank by utility patentsForward Citations = 470
Company Filing History:



4. 5 out of 1,033
Kabushiki Kaisha Topcon
5. 2 out of 5,045

where one patent can have more than one assignee
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