73 Utility Patents
#784 in Tokyo
#3,342 in Japan
#18,248 in the World
Forward Citations = 351
Company Filing History:

Asahi Kogaku Kogyo Kabushiki Kaisha

4. 9 out of 123
Pentax Ricoh Imaging Company, Ltd.
5. 1 out of 94
Ricoh Imaging Company, Ltd.
where one patent can have more than one assignee
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