47 Utility Patents
#698 in Yokohama
#8,847 in Japan
#43,410 in the World
Forward Citations = 272
Company Filing History:

Sumitomo Electric Optifrontier Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today
#698 in Yokohama
#8,847 in Japan
#43,410 in the World
Company Filing History:

Get your Inventor Badge Today