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    • 74. 发明申请
    • RESIN FOR OPTICAL COMPONENT, RAW MATERIAL COMPOSITION USED FOR RESIN FOR OPTICAL COMPONENT, AND OPTICAL COMPONENT
    • 光学元件用树脂,用于光学元件的树脂的原料组合物和光学组分
    • US20100324246A1
    • 2010-12-23
    • US12667166
    • 2008-06-30
    • Yutaka ObataTakeshi IwasakiTomoaki Takebe
    • Yutaka ObataTakeshi IwasakiTomoaki Takebe
    • C08F120/18C08F230/08
    • C08F220/68C08F222/1006G02B1/04C08L33/10C08L33/08C08L67/00
    • Provided are a resin for an optical component, which has heat resistance, does not suffer from yellowing because of its stability against heat, and is excellent in transparency and workability; a raw material composition used for the resin for an optical component; and an optical component. Specifically, provided is a resin for an optical component containing a (meth)acrylate compound unit (A1), in which a hydrocarbon group containing an adamantane structure is ester-bonded, and a (meth)acrylate compound unit (B1) having a polyfunctional group, which is other than the unit (A1). Also, provided is a raw material composition used for a resin for an optical component, which contains a (meth)acrylate compound (A2) in which a hydrocarbon group containing an adamantane structure is ester-bonded, and a (meth)acrylate compound (B2) having a polyfunctional group, which is other than the compound (A2). Further, provided is an optical component which is obtained by polymerizing and molding the raw material composition.
    • 提供一种光学部件用树脂,其具有耐热性,耐热稳定性不会发黄,并且透明性和加工性优异; 用于光学部件的树脂的原料组合物; 和光学部件。 具体地说,提供了含有(甲基)丙烯酸酯化合物单元(A1)的含有金刚烷结构的烃基酯键合的光学部件用树脂和具有多官能团的(甲基)丙烯酸酯化合物单元(B1) 组(A1)。 另外,作为光学部件用树脂,使用含有金刚烷结构的烃基进行酯键合的(甲基)丙烯酸酯化合物(A2)和(甲基)丙烯酸酯化合物( B2)具有不同于化合物(A2)的多官能团。 此外,提供了通过聚合和成型原料组合物而获得的光学部件。
    • 79. 发明授权
    • Magnetic recording medium, method of manufacturing the same, and magnetic recording and reproduction apparatus
    • 磁记录媒体及其制造方法以及磁记录再生装置
    • US07083870B2
    • 2006-08-01
    • US10617822
    • 2003-07-14
    • Kenji ShimizuAkira SakawakiHiroshi SakaiTakashi HikosakaTakeshi Iwasaki
    • Kenji ShimizuAkira SakawakiHiroshi SakaiTakashi HikosakaTakeshi Iwasaki
    • G11B5/66G11B5/70
    • G11B5/667G11B5/65G11B5/7325G11B2005/0029
    • A magnetic recording medium includes a nonmagnetic substrate on which is provided at least a soft magnetic under-film, an orientation control film that controls an orientation of a film directly above, a perpendicular magnetic recording film having an axis of easy magnetization oriented to be mainly perpendicular to the substrate and a protective film, wherein the orientation control film has a material composition forming a C11b structure. The magnetic recording medium is manufactured by a method including carrying out, in order, at least a step of forming a soft magnetic under-film on a nonmagnetic substrate, a step of forming an orientation control film that controls an orientation of a film directly above, a step of forming a perpendicular magnetic recording film having an axis of easy magnetization oriented to be mainly perpendicular to the substrate, and a step of forming a protective film. A magnetic recording and reproduction apparatus includes the magnetic recording medium and a magnetic head that records and reproduces information on the magnetic recording medium, wherein the magnetic head is a magnetic monopole head.
    • 磁记录介质包括至少设置有软磁性底膜的非磁性基板,控制正上方的膜的取向的取向控制膜,具有容易磁化的轴的垂直磁记录膜主要取向为 垂直于基底和保护膜,其中取向控制膜具有形成C 11 B 17结构的材料组合物。 该磁记录介质是通过以下方法制造的,该方法包括以下步骤:至少在非磁性基板上形成软磁性底膜的步骤,形成控制膜直接定向的取向控制膜的步骤 形成具有易于磁化的轴取向为主要垂直于基板的垂直磁记录膜的步骤和形成保护膜的步骤。 磁记录和再现装置包括磁记录介质和在磁记录介质上记录和再现信息的磁头,其中磁头是磁单极头。