发明名称 METHOD OF MANUFACTURING OPTICAL INFORMATION RECORDING MEDIUM AND THE OPTICAL INFORMATION RECORDING MEDIUM
摘要 An optical information recording medium of which the commercial value is not reduced is provided, in which a light reflection layer, an optical recording layer, a first light transmission layer, and a second light transmission layer are provided in this order on one main surface of a disk-shaped substrate, and a method of manufacturing the optical information recording medium is provided. A light reflection layer, an optical recording layer, a protection layer, a first light transmission layer, and a second light transmission layer may be provided in this order on the one main surface of the disk-shaped substrate. The substrate has a first groove and a second groove approximately concentrically formed nearer an inner circumference of the substrate than an area in which the optical recording layer is to be provided. The first light transmission layer is provided such that an edge thereof is situated near an edge of an outer circumferential side of the first groove. The second light transmission layer is provided such that an edge thereof is situated near an edge of an outer circumferential side of the second groove. Therefore, each of the first and second light transmission layers does not meander at an inner circumferential edge thereof in a circumferential direction, leading to excellent quality in appearance.
申请公布号 US2008248254(A1) 申请公布日期 2008.10.09
申请号 US20080035981 申请日期 2008.02.22
申请人 TAIYO YUDEN CO., LTD. 发明人 HAGIWARA YASUHITO;HAGIWARA MOTOMITSU;OTSU TAKESHI;MIYATA AKIMASA;AIHARA KUNIYUKI
分类号 B32B3/30;B05D5/06 主分类号 B32B3/30
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