Invention Grant
- Patent Title: Recording medium
- Patent Title (中): 录音媒体
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Application No.: US13746369Application Date: 2013-01-22
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Publication No.: US08879371B2Publication Date: 2014-11-04
- Inventor: Masayoshi Yoshida , Takuya Shiroto , Hideki Kobayashi , Masakazu Ogasawara , Takao Tagiri , Makoto Suzuki
- Applicant: Pioneer Corporation , Memory-Tech Holdings Inc.
- Applicant Address: JP Kanagawa JP Tokyo
- Assignee: Pioneer Corporation,Memory-Tech Holdings Inc.
- Current Assignee: Pioneer Corporation,Memory-Tech Holdings Inc.
- Current Assignee Address: JP Kanagawa JP Tokyo
- Agency: Young & Thompson
- Priority: JP2012-010085 20120120
- Main IPC: G11B7/004
- IPC: G11B7/004 ; G11B7/24038 ; G11B7/2405 ; G11B7/09
Abstract:
A recording medium is provided with: a guide layer on which a guide track or tracks are formed; and a plurality of recording layers, wherein a same mark group is formed in a same rotational phase position of each of a plurality of guide tracks which are included in a beam spot of guide laser light, the mark group including a pair of record marks which are shifted by a predetermined distance toward a right side and a left side, respectively, from a track center.
Public/Granted literature
- US20130188469A1 RECORDING MEDIUM Public/Granted day:2013-07-25
Information query
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