7 Utility Patents
#681 in Hitachinaka
#121,668 in Japan
#597,499 in the World
Forward Citations = 53
Company Filing History:
Ricoh Printing Systems, Ltd.
Hitachi Printing Solutions, Ltd.

4. 1 out of 1,267
Hitachi Koki Co., Ltd.
5. 1 out of 2
Ricoh Printing Systems Co., Ltd.
where one patent can have more than one assignee
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