m including the same and method of fabricating the sameUS794391828 Sep 200917 May 2011Samsung Electronics Co., Ltd.Multi-layer phase-changeable memory devicesUS8017208 *31 Oct 200713 Sep 2011Panasonic CorporationInformation recording medium, target and method for manufacturing of information recording medium using the sameUS8377537 *9 Dic 200819 Feb 2013Thomson LicensingRecordable optical storage