Invention Grant
- Patent Title: Optical recording medium and method for reproducing information from optical recording medium
- Patent Title (中): 光记录介质及从光记录介质再现信息的方法
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Application No.: US11990076Application Date: 2006-08-08
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Publication No.: US07876665B2Publication Date: 2011-01-25
- Inventor: Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi , Junji Tominaga , Takashi Nakano , Takayuki Shima , Joo-ho Kim , In-oh Hwang
- Applicant: Takashi Kikukawa , Narutoshi Fukuzawa , Tatsuhiro Kobayashi , Junji Tominaga , Takashi Nakano , Takayuki Shima , Joo-ho Kim , In-oh Hwang
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2005-230094 20050808
- International Application: PCT/JP2006/315623 WO 20060808
- International Announcement: WO2007/018195 WO 20070215
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
An optical recording medium includes a substrate, a first dielectric layer, a recording layer, a second dielectric layer, a super-resolution layer, and a third dielectric layer, which are provided in that order. The super-resolution layer is formed of a material configured such that voids are generated when the material is irradiated with DC light at a predetermined irradiation power for 1 to 300 seconds. Therefore, super-resolution reproduction can be made such that the irradiation power of a readout laser beam does not depend on the size of a recording mark.
Public/Granted literature
- US20090016205A1 Optical Recording Medium and Method for Reproducing Information From Optical Recording Medium Public/Granted day:2009-01-15
Information query
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