when did ricoh buy pentax
On October 1, 2011, Ricoh acquired all shares of Pentax Imaging Corp. and renamed the new subsidiary Pentax Ricoh Imaging Company, Ltd. On October 1, 2011, Ricoh announced the establishment of Pentax Ricoh Imaging Company, LTD. On August 1, 2013, the company name was changed to Ricoh Imaging Company Ltd.