Invention Grant
- Patent Title: Optical recording medium and information recording method
- Patent Title (中): 光记录介质和信息记录方法
-
Application No.: US12149652Application Date: 2008-05-06
-
Publication No.: US08270271B2Publication Date: 2012-09-18
- Inventor: Ippei Ogawa , Takuo Ohishi , Takanobu Matsuba
- Applicant: Ippei Ogawa , Takuo Ohishi , Takanobu Matsuba
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2003-083619 20030325; JP2003-381189 20031111
- Main IPC: G11B7/0045
- IPC: G11B7/0045

Abstract:
An optical recording medium has a multi-layer structure recording layer structure recording layer portion including plural recording layers provided with tracks for guiding a recording light and being adapted to record data, where recording condition information and recording layer identification information for the recording layers are recorded on the tracks as information signals. Test writing is conducted on a recording layer that is subject to recording to derive a suitable recording condition based on recording condition information that is recorded on the recording layer, and direct recording is conducted according to a direct recording condition.
Public/Granted literature
- US20090154320A1 Optical recording medium and information recording method Public/Granted day:2009-06-18
Information query
IPC分类: