27 Utility and 1 Design Patents
#2,469 in Kanagawa
#23,117 in Japan
#107,631 in the World
rank by utility patentsForward Citations = 48
Company Filing History:

Hitachi Koki Co., Ltd.

4. 1 out of 129
Ricoh Printing Systems, Ltd.
where one patent can have more than one assignee
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