公开(公告)号：US5578355A

公开(公告)日：1996-11-26

申请号：US400192

申请日：1995-03-03

申请人： Hideki Hirata ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Tsuyoshi Komaki

发明人： Hideki Hirata ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Tsuyoshi Komaki

IPC分类号： C08K5/10 ,  C09D201/00 ,  G11B5/72 ,  G11B5/725 ,  G11B11/10 ,  G11B11/105 ,  G11B5/71

CPC分类号： G11B11/10589 ,  G11B11/10584 ,  G11B5/72 ,  G11B5/725 ,  Y10S428/90 ,  Y10T428/24942 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249995 ,  Y10T428/265

摘要： A magneto-optical disc includes a substrate, a recording layer, and a protective coating comprised of a resin and a lubricant. The disc is operated for magneto-optical recording in a magnetic field modulation mode such that the protective coating is in sliding contact with a magnetic head. The lubricant is a higher fatty acid ester R.sup.1 --COO--R.sup.2 wherein R.sup.1 is a saturated or unsaturated aliphatic C.sub.10 -C.sub.30 hydrocarbon residue, and R.sup.2 is a saturated or unsaturated aliphatic C.sub.10 -C.sub.30 hydrocarbon residue. Alternatively, the protective coating is formed by curing with radiation a composition containing a lubricant and a radiation-curable compound such that micropores are locally formed in or near the outer surface of the protective coating, the lubricant being distributed in the micropores. In either case, the protective coating is effective for minimizing friction with the magnetic head.

摘要翻译： 磁光盘包括基板，记录层和由树脂和润滑剂组成的保护涂层。 该盘用于磁场调制模式中的磁光记录，使得保护涂层与磁头滑动接触。 润滑剂是高级脂肪酸酯R1-COO-R2，其中R1是饱和或不饱和脂族C10-C30烃残基，R2是饱和或不饱和脂肪族C 10 -C 30烃残基。 或者，通过用辐射固化含有润滑剂和可辐射固化化合物的组合物形成保护涂层，使得微孔局部形成在保护涂层的外表面中或其附近，润滑剂分布在微孔中。 在任一情况下，保护涂层对于最小化与磁头的摩擦是有效的。

公开(公告)号：US5340698A

公开(公告)日：1994-08-23

申请号：US983264

申请日：1992-11-30

申请人： Hideki Hirata ,  Keiji Koga ,  Toshihiko Ishida

发明人： Hideki Hirata ,  Keiji Koga ,  Toshihiko Ishida

IPC分类号： G11B7/243 ,  G11B7/246 ,  G03C1/72 ,  G11B7/24

CPC分类号： G11B7/2533 ,  G11B7/24024 ,  G11B7/2531 ,  G11B7/256 ,  G11B2007/24304 ,  G11B7/2433 ,  G11B7/246 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2578 ,  Y10S430/146

摘要： An optical disk is configured as comprising a pair of substrates one of which has a recording layer borne thereon, the substrates being joined together through an adhesive so that the recording layer is interposed therebetween. In one form, one of the substrates is of glass, the other substrate is of a resin. In another form, both the substrates are of glass or resin. Delamination is prevented by using the adhesive having a specific glass transition temperature, Young's modulus, and dynamic loss factor.

摘要翻译： 光盘被配置为包括一对基板，其中一个基板上具有记录层，基板通过粘合剂连接在一起，使得记录层插入其间。 在一种形式中，其中一个基底是玻璃，另一个基底是树脂。 在另一种形式中，两种基底都是玻璃或树脂。 通过使用具有特定玻璃化转变温度，杨氏模量和动态损耗因子的粘合剂来防止分层。

公开(公告)号：US5244706A

公开(公告)日：1993-09-14

申请号：US840065

申请日：1992-02-25

申请人： Hideki Hirata ,  Toshifumi Tanaka ,  Setsuko Shibuya ,  Atsuko Motai

发明人： Hideki Hirata ,  Toshifumi Tanaka ,  Setsuko Shibuya ,  Atsuko Motai

IPC分类号： G11B7/243 ,  G11B7/2433 ,  G11B7/246 ,  G11B7/2531 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2538 ,  G11B7/2542 ,  G11B7/2578 ,  G11B7/259 ,  G11B7/2595

CPC分类号： G11B7/2531 ,  G11B7/2533 ,  G11B2007/24304 ,  G11B7/2433 ,  G11B7/246 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2538 ,  G11B7/2542 ,  G11B7/256 ,  G11B7/2578 ,  G11B7/259 ,  G11B7/2595 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/24942 ,  Y10T428/31678

摘要： An optical recording disk includes a resin substrate having a recording layer thereon and a protective glass substrate, which are joined into an integral disk such that the recording layer is inside. The resin substrate is formed of a resin composition comprising a specific cyclic polyolefin and an optional alkyl phenol condensate. The resulting lightweight, rigid disk is adapted for recording/reproducing operation at high rotational speeds with few focusing errors due to minimized axial runouts.

摘要翻译： 光记录盘包括其上具有记录层的树脂基板和保护性玻璃基板，其被连接成一体的盘，使得记录层在内部。 树脂基材由包含特定环状聚烯烃和任选的烷基酚缩合物的树脂组合物形成。 所得到的轻质刚性盘适于在高转速下进行记录/再现操作，由于最小化的轴向跳动导致很少的聚焦误差。