24 Utility Patents
#212 in Ibaraki
#28,091 in Japan
#130,262 in the World
Forward Citations = 219
Company Filing History:

Hitachi Koki Co., Ltd.
Hitachi Printing Solutions, Ltd.
4. 3 out of 129
Ricoh Printing Systems, Ltd.
5. 2 out of 2,333

where one patent can have more than one assignee
Get your Inventor Badge Today