公开(公告)号：US20100233414A1

公开(公告)日：2010-09-16

申请号：US12720183

申请日：2010-03-09

申请人： Toshio ISHIDA ,  Katsuhiko MEGURO ,  Toshiyuki KITAHARA

发明人： Toshio ISHIDA ,  Katsuhiko MEGURO ,  Toshiyuki KITAHARA

IPC分类号： B32B3/02 ,  B32B38/00

CPC分类号： B32B38/1808 ,  B32B38/0004 ,  B32B38/1858 ,  B32B2037/243 ,  B32B2038/042 ,  B32B2429/02 ,  G11B7/24038 ,  G11B7/26 ,  G11B7/266 ,  Y10T156/1075 ,  Y10T428/21

摘要： A multilayer optical recording medium includes: a substrate; a plurality of optical recording layers provided on the substrate; and a plurality of intermediate layers each provided between adjoining optical recording layers disposed in a thickness direction. In this multilayer optical recording medium, each of the intermediate layers has a birefringence property and a principal axis direction of birefringence of each intermediate layer is oriented at 90 degrees with respect to that of an adjoining intermediate layer.

摘要翻译： 多层光记录介质包括：基板; 设置在基板上的多个光记录层; 以及多个中间层，每个中间层设置在沿厚度方向设置的相邻的光学记录层之间。 在这种多层光学记录介质中，每个中间层具有双折射性质，并且每个中间层的双折射的主轴方向相对于相邻中间层的双折射取向为90度。

公开(公告)号：US20090087686A1

公开(公告)日：2009-04-02

申请号：US12239937

申请日：2008-09-29

申请人： Katsuhiko MEGURO ,  Masatoshi Takahashi

发明人： Katsuhiko MEGURO ,  Masatoshi Takahashi

IPC分类号： G11B5/62 ,  B05D5/12

CPC分类号： G11B5/7305 ,  G11B5/8404 ,  Y10T428/31855

摘要： An aspect of the present invention relates to a magnetic recording medium comprising a coating layer on a nonmagnetic support, wherein the coating layer comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder in this order, the nonmagnetic support comprises a main component in the form of a resin obtained by mixing and/or copolymerizing a polyester and a polymer having compatibility with the polyester, has a glass transition temperature of equal to or higher than 80° C. but less than 125° C., and has a heat absorption peak, based on enthalpy relaxation, ranging from 0.5 to 2.0 J/g. Another aspect of the present invention relates to a method of manufacturing a magnetic recording medium.

摘要翻译： 本发明的一个方面涉及一种磁性记录介质，其包括在非磁性载体上的涂层，其中所述涂层包括非磁性层，包括非磁性粉末和粘合剂，以及包含铁磁性粉末和粘合剂的磁性层按此顺序 ，非磁性载体包括通过将聚酯和与聚酯具有相容性的聚合物混合和/或共聚获得的树脂形式的主要组分，其玻璃化转变温度等于或高于80℃但小于 125℃，基于焓弛豫，具有0.5〜2.0J / g的吸热峰。 本发明的另一方面涉及一种制造磁记录介质的方法。