23 Utility Patents
#19 in Komaki
#29,788 in Japan
#138,051 in the World
Forward Citations = 128
Company Filing History:

Japan Communication Accessories Manufacturing Co., Ltd.
Sei Optifrontier Co., Ltd.
4. 4 out of 43
Sumitomo Electric Optifrontier Co., Ltd.
5. 3 out of 832,448 patents
Other
where one patent can have more than one assignee
Get your Inventor Badge Today