30 Utility and 4 Design Patents
#4,213 in Tokyo
#19,789 in Japan
#92,522 in the World
rank by utility patentsForward Citations = 124
Company Filing History:

Hitachi Koki Co., Ltd.
Ricoh Printing Systems, Ltd.
Get your Inventor Badge Today
#4,213 in Tokyo
#19,789 in Japan
#92,522 in the World
rank by utility patentsCompany Filing History:

Get your Inventor Badge Today