Invention Grant
- Patent Title: Phase-change optical recording media and optical recording-reproducing apparatus
- Patent Title (中): 相变光学记录介质和光学记录再现装置
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Application No.: US11224097Application Date: 2005-09-13
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Publication No.: US07643397B2Publication Date: 2010-01-05
- Inventor: Tsukasa Nakai , Yasuaki Ootera , Sumio Ashida , Keiichiro Yusu , Nobuhisa Yoshida , Koji Takazawa , Naomasa Nakamura
- Applicant: Tsukasa Nakai , Yasuaki Ootera , Sumio Ashida , Keiichiro Yusu , Nobuhisa Yoshida , Koji Takazawa , Naomasa Nakamura
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-285444 20040929
- Main IPC: H04B1/56
- IPC: H04B1/56 ; H04B3/40
Abstract:
The present invention relates to an optical recording media including two or more information layers, at least one of the information layers including a writable recording film. In the optical recording media, at least one information layer has protrusions and recesses that permit tracking and at least another one information layer is substantially flat.
Public/Granted literature
- US20060077878A1 Phase-change optical recording media and optical recording-reproducing apparatus Public/Granted day:2006-04-13
Information query
