Invention Grant
- Patent Title: Optical information recording medium
- Patent Title (中): 光信息记录介质
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Application No.: US12237324Application Date: 2008-09-24
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Publication No.: US07835257B2Publication Date: 2010-11-16
- Inventor: Motomitsu Hagiwara , Takeshi Otsu , Akimasa Miyata , Yuji Tomizawa
- Applicant: Motomitsu Hagiwara , Takeshi Otsu , Akimasa Miyata , Yuji Tomizawa
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2007-247557 20070925
- Main IPC: G11B7/24
- IPC: G11B7/24

Abstract:
An optical information recording medium includes a disk-like substrate having a hole in a central portion thereof, and a light-reflective layer, a dye recording layer containing an organic dye, an intermediate layer composed of an inorganic substance, and a light-transmissive layer composed of a resin disposed in that order on one principal surface of the substrate, in which information is recorded/reproduced by irradiation of laser light from the light-transmissive layer side. In the optical information recording medium, the light-transmissive layer covers a surface of the intermediate layer from an inner peripheral edge of the intermediate layer to an outer peripheral edge of the intermediate layer, and a vicinity of an outer peripheral edge of the light-transmissive layer is in contact with the substrate in an annular region extending around an outer peripheral side of the substrate.
Public/Granted literature
- US20090116369A1 OPTICAL INFORMATION RECORDING MEDIUM Public/Granted day:2009-05-07
Information query
IPC分类: