24 Utility and 2 Design Patents
#206 in Ibaraki
#26,836 in Japan
#121,318 in the World
rank by utility patentsForward Citations = 161
Company Filing History:
Hitachi Koki Co., Ltd.
Ricoh Printing Systems, Ltd.
Hitachi, Ltd.
4. 2 out of 828,785 patents
Other
where one patent can have more than one assignee
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