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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。
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公开(公告)号:US5242729A
公开(公告)日:1993-09-07
申请号:US836677
申请日:1992-02-19
申请人: Hideki Hirata , Toshifumi Tanaka , Setsuko Shibuya , Atsuko Motai
发明人: Hideki Hirata , Toshifumi Tanaka , Setsuko Shibuya , Atsuko Motai
CPC分类号: G11B7/2538 , G11B7/246 , G11B2007/24306 , G11B2007/24612 , G11B7/2467 , G11B7/2472 , G11B7/248 , G11B7/249 , G11B7/256 , G11B7/2578 , G11B7/2595 , Y10S428/913 , Y10S430/146 , Y10T428/24942
摘要: An optical recording disk is constructed using a substrate which is injection molded from a mixture of a cyclic polyolefin and up to 2% by weight of an alkyl phenol condensate. A recording layer remains firmly adhered to the substrate even in a hot humid environment.
摘要翻译: 使用由环状聚烯烃和高达2重量%的烷基酚缩合物的混合物注射成型的基材构成光记录盘。 即使在潮湿的潮湿环境中,记录层仍然牢固地附着在基板上。
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公开(公告)号:US5279877A
公开(公告)日:1994-01-18
申请号:US935114
申请日:1992-08-27
申请人: Ryota Uchiyama , Hiroyuki Endo , Isamu Kuribayashi , Shin-ichi Tezuka , Tsuneo Kuwahara , Hideki Hirata , Setsuko Shibuya
发明人: Ryota Uchiyama , Hiroyuki Endo , Isamu Kuribayashi , Shin-ichi Tezuka , Tsuneo Kuwahara , Hideki Hirata , Setsuko Shibuya
IPC分类号: C09D127/18 , G11B5/72 , G11B5/82 , G11B11/105 , B32B3/02
CPC分类号: G11B11/10584 , C09D127/18 , G11B5/72 , G11B5/82 , Y10T428/254 , Y10T428/3154 , Y10T428/31544
摘要: A protective coating made of resin, preferably a radiation curable resin containing fluoroplastic fine particles having a low surface energy is provided in the form of the uppermost layer facing a magnetic head, thereby improving the frictional properties and durability of a magneto-optical disc that is used with a magnetic field modulation system in which the magnetic head comes in constant contact therewith.
摘要翻译: 提供由树脂制成的保护涂层,优选为包含具有低表面能的氟塑料微粒的可辐射固化树脂,其形式为面向磁头的最上层,从而改善了磁光盘的摩擦性能和耐久性 与其中磁头恒定接触的磁场调制系统一起使用。
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