24 Utility Patents
#1,494 in Osaka
#28,022 in Japan
#129,863 in the World
Forward Citations = 223
Company Filing History:

Ricoh Printing Systems, Ltd.

4. 2 out of 1,267
Hitachi Koki Co., Ltd.
5. 1 out of 1,431

where one patent can have more than one assignee
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