13 Utility Patents
#12,178 in Tokyo
#63,369 in Japan
#296,503 in the World
Forward Citations = 214
Company Filing History:
Nippon Kokan Kabushiki Kaisha
Combi Co., Ltd.

4. 2 out of 4
Optohub Co., Ltd
5. 1 out of 21,351

where one patent can have more than one assignee
Get your Inventor Badge Today