公开(公告)号：US20090262640A1

公开(公告)日：2009-10-22

申请号：US12396775

申请日：2009-03-03

申请人： Kensaku TAKAHASHI ,  Jun NAKANO ,  Shin MASUHARA ,  Tetsuhiro SAKAMOTO ,  Shigeki TAKAGAWA

发明人： Kensaku TAKAHASHI ,  Jun NAKANO ,  Shin MASUHARA ,  Tetsuhiro SAKAMOTO ,  Shigeki TAKAGAWA

IPC分类号： G11B7/24 ,  B29C59/16

CPC分类号： G11B7/26

摘要： An optical-disc manufacturing method including the steps of: fabricating a pre-exposure disc master by forming, on a substrate, a heat accumulation layer having a thickness of 17% or less of a recording-laser wavelength and forming an inorganic resist layer; performing exposure of a recording-signal pattern having pits and spaces with respect to the inorganic resist layer of the disc master, by performing recording-laser light irradiation; fabricating a disc master having a pit-array shape having pits and spaces, by performing development processing after the exposure; manufacturing a stamper to which the pit-array shape is transferred, by using the disc master having the pit-array shape; and manufacturing an optical disc having a predetermined layer structure including a recording layer to which the pit-array shape of the stamper is transferred and in which a silver or silver-alloy reflective film is formed on the pit-array shape.

摘要翻译： 一种光盘制造方法，包括以下步骤：通过在基板上形成具有记录激光波长的17％或更小的厚度的热积层并形成无机抗蚀剂层来制造预曝光盘主机; 通过执行记录激光照射，对相对于盘主机的无机抗蚀剂层的凹坑和间隔进行曝光; 通过在曝光之后进行显影处理来制造具有坑和空间的凹坑阵列形状的光盘主体; 通过使用具有凹坑阵列形状的盘主机来制造凹坑阵列形状被传送的压模; 并且制造具有预定层结构的光盘，所述预定层结构包括转印有凹坑阵列形状的记录层，并且在凹坑阵列形状上形成银或银合金反射膜。

公开(公告)号：US20110076436A1

公开(公告)日：2011-03-31

申请号：US12882281

申请日：2010-09-15

申请人： Hiroyasu INOUE ,  Takashi KIKUKAWA ,  Koji MISHIMA ,  Yoshiaki KOMMA ,  Joji ANZAI ,  Jun NAKANO ,  Manami MIYAWAKI ,  Shigeki TAKAGAWA

发明人： Hiroyasu INOUE ,  Takashi KIKUKAWA ,  Koji MISHIMA ,  Yoshiaki KOMMA ,  Joji ANZAI ,  Jun NAKANO ,  Manami MIYAWAKI ,  Shigeki TAKAGAWA

IPC分类号： G06F17/10 ,  B32B3/02

CPC分类号： G11B7/24038 ,  Y10T428/21

摘要： An optical recording medium having three or more information recording layers reduces crosstalk caused by multi-reflected beams and improves signal quality. In the optical recording medium having three or more information recording layers, the refractive index of a plurality of intermediate layers disposed between adjacent information recording layers is greater than the refractive index of a cover layer disposed between a light incident surface and an information recording layer being the closest from the light incident surface.

摘要翻译： 具有三个或更多个信息记录层的光记录介质减少了由多反射光束引起的串扰并提高了信号质量。 在具有三个以上信息记录层的光记录介质中，设置在相邻信息记录层之间的多个中间层的折射率大于设置在光入射表面和信息记录层之间的覆盖层的折射率， 最靠近光入射面。