25 Utility Patents
#5,423 in Tokyo
#26,383 in Japan
#122,407 in the World
Forward Citations = 199
Company Filing History:
Kabushiki Kaisha Topcon


4. 1 out of 90
The University of Electro-communications
5. 1 out of 153
Tokyo Kogaku Kikai Kabushiki Kaisha
where one patent can have more than one assignee
Get your Inventor Badge Today