27 Utility and 1 Design Patents
#163 in Ibaraki
#23,319 in Japan
#108,515 in the World
rank by utility patentsForward Citations = 65
Company Filing History:

Hitachi Koki Co., Ltd.
Ricoh Printing Systems, Ltd.
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#163 in Ibaraki
#23,319 in Japan
#108,515 in the World
rank by utility patentsCompany Filing History:

Get your Inventor Badge Today