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269 条记录 (耗时 0.029 秒)

    Recording medium
    1.
    发明授权
    Recording medium 失效
    录音媒体

    公开(公告)号：US4857427A

    公开(公告)日：1989-08-15

    申请号：US236338

    申请日：1988-08-19

    申请人： Hiroyuki Itoh ,  Takafumi Ishii ,  Tetsuo Satoh

    发明人： Hiroyuki Itoh ,  Takafumi Ishii ,  Tetsuo Satoh

    IPC分类号： B41M5/26 ,  C08G69/10 ,  C09K19/38 ,  G02F1/13 ,  G11B7/244 ,  G11B7/245 ,  G11B7/25

    CPC分类号： G11B7/25 ,  C08G69/10 ,  C09K19/389 ,  G11B7/245 ,  Y10S430/146

    摘要： A recording medium having a base and a recording layer provided on said base, said recording layer consisting essentially of a thermotropic cholesteric liquid crystalline glutamate copolymer represented by the following general formula: ##STR1## wherein R.sub.1 is an alkyl, cycloalkyl, aryl or arylalkyl group having not more than 10 carbon atoms, R.sub.2 is an alkyl, cycloalkyl, aryl or arylalkyl group having 6 to 30 carbon atoms, provided R.sub.1 and R.sub.2 are not the same, and m and n are in the relation of 50.ltoreq.m+n.ltoreq.2,000, m/n=80.about.10/20.about.90.

    摘要翻译： 一种记录介质，其具有设置在所述基底上的基底和记录层，所述记录层基本上由以下通式表示的热致变性胆固醇液晶谷氨酸共聚物组成：其中R1是烷基，环烷基，芳基或芳基烷基 具有不超过10个碳原子，R 2是具有6至30个碳原子的烷基，环烷基，芳基或芳烷基，其中R1和R2不相同，并且m和n的关系为50 + n

    Nonlinear optical materials
    2.
    发明授权
    Nonlinear optical materials 失效
    非线性光学材料

    公开(公告)号：US5288426A

    公开(公告)日：1994-02-22

    申请号：US601026

    申请日：1990-10-23

    申请人： Hiroyuki Itoh ,  Takafumi Ishii ,  Takehiro Toyooka ,  Tetsuo Satoh

    发明人： Hiroyuki Itoh ,  Takafumi Ishii ,  Takehiro Toyooka ,  Tetsuo Satoh

    IPC分类号： C09K19/38 ,  G02F1/361 ,  C09K19/54 ,  C09K19/52 ,  F21V9/00 ,  G02F1/13

    CPC分类号： C09K19/3809 ,  G02F1/361 ,  G02F1/3616

    摘要： A nonlinear optical material having a high nonlinear optical constant useful for frequency doubler of laser beam which comprises a chiral smectic C liquid crystalline polyester consisting essentially of the structural units having the general formulae (A), (B) and (C); ##STR1## Wherein X is a structural unit selected from the group consisting of ##STR2## Wherein Y is a group having at least one optically active carbon and the total carbon number of Y is 3-12. ##STR3## wherein n is an integer of 2-10.

    摘要翻译： 具有用于激光束倍频器的高非线性光学常数的非线性光学材料，其包括基本上由具有通式（A），（B）和（C）的结构单元组成的手性近晶C液晶聚酯; （*化学结构*）其中X是选自（*化学结构*）（*化学结构*）（*化学结构*）（*化学结构*）（*化学结构*）（* 化学结构*）（*化学结构*）（*化学结构*）（B）+ BL，4 -OYO- + BL，4444 1-60摩尔％其中Y是具有至少一个 光学活性碳，Y的总碳数为3-12。 （*化学结构*）其中n为2-10的整数。

    Optical filter employing a copolyglutamate having thermotropic cholesteric liquid crystal properties
    3.
    发明授权
    Optical filter employing a copolyglutamate having thermotropic cholesteric liquid crystal properties 失效
    使用具有热致变胆甾型液晶性能的共聚谷氨酸盐的光学过滤器

    公开(公告)号：US5037186A

    公开(公告)日：1991-08-06

    申请号：US306239

    申请日：1989-02-02

    申请人： Hiroyuki Itoh ,  Shingo Orii ,  Tetsuo Satoh

    发明人： Hiroyuki Itoh ,  Shingo Orii ,  Tetsuo Satoh

    IPC分类号： G02B5/20 ,  C09K19/38 ,  G02B1/04 ,  G02B5/28 ,  G02B5/30

    CPC分类号： G02B5/287 ,  C09K19/389 ,  G02B1/04 ,  G02B5/30 ,  G02B5/3016

    摘要： An optical filter consisting essentially of a glutamate copolymer having thermotropic cholesteric liquid crystal properties and represented by the general formula: ##STR1## wherein R.sub.1 is an alkyl group, a cycloalkyl group, an aryl group or an arylalkyl group having 10 or less carbon atoms, and R.sub.2 an alkyl group, a cycloalkyl group, an aryl group or an arylalkyl group having 6 to 30 carbon atoms, provided that R.sub.1 and R.sub.2 are different from each other; m and n are numbers satisfying the following relationships 50.ltoreq.m+n.ltoreq.2000 and m/n=80 to 10/20 to 90.

    摘要翻译： 一种滤光器，其主要由具有热致变胆甾型液晶性质的谷氨酸共聚物组成，并由以下通式表示：其中R 1是具有10个或更少碳原子的烷基，环烷基，芳基或芳基烷基， 并且R 2为烷基，环烷基，芳基或碳原子数为6〜30的芳烷基，条件是R 1和R 2相互不同; m和n是满足以下关系的数量：50≤m+ n <2000，m / n = 80〜10/20〜90。

    Method of manufacturing magnetic head, and magnetic head sub-structure
    7.
    发明授权
    Method of manufacturing magnetic head, and magnetic head sub-structure 有权
    制造磁头和磁头子结构的方法

    公开(公告)号：US08163186B2

    公开(公告)日：2012-04-24

    申请号：US12155734

    申请日：2008-06-09

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Shigeki Tanemura ,  Hironori Araki

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3173 ,  Y10T29/49037 ,  Y10T29/49044

    摘要： A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming a plurality of components of the magnetic heads on a single substrate, wherein a plurality of rows of pre-head portions that will be the respective magnetic heads later are aligned in the substructure; and fabricating the magnetic heads by separating the pre-head portions from one another through cutting the substructure. In the step of fabricating the substructure, a plurality of indicators are formed, each of the indicators serving as a reference for indicating the location of a region ABS in which the medium facing surfaces of the magnetic heads are to be formed.

    摘要翻译： 制造磁头的方法包括以下步骤：通过在单个基板上形成磁头的多个部件来制造磁头子结构，其中稍后将成为相应磁头的多行预磁头部分是 在子结构中排列; 以及通过切割子结构将前头部彼此分开来制造磁头。 在制造子结构的步骤中，形成多个指示器，每个指示器用作用于指示要形成磁头的介质相对表面的区域ABS的位置的基准。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    8.
    发明授权
    Magnetic head for perpendicular magnetic recording and method of manufacturing same 有权
    用于垂直磁记录的磁头及其制造方法

    公开(公告)号：US07957097B2

    公开(公告)日：2011-06-07

    申请号：US11819667

    申请日：2007-06-28

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Moris Dovek

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura ,  Moris Dovek

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163

    摘要： An encasing section includes an encasing layer having an encasing groove, and a nonmagnetic film disposed in the encasing groove at a position between the encasing layer and a pole layer. The pole layer includes a track width defining portion and a wide portion. The track width defining portion has a first side surface and a second side surface. The wide portion has a third side surface and a fourth side surface. The encasing layer has a first wall surface and a second wall surface. The distance between the third side surface and the first wall surface is smaller than the distance between the first side surface and the first wall surface. The distance between the fourth side surface and the second wall surface is smaller than the distance between the second side surface and the second wall surface.

    摘要翻译： 封装部分包括具有封装槽的封装层和在封装槽和极层之间的位置处设置在封装槽中的非磁性膜。 极层包括轨道宽度限定部分和宽部分。 轨道宽度限定部分具有第一侧表面和第二侧表面。 宽部具有第三侧面和第四侧面。 包围层具有第一壁表面和第二壁表面。 第三侧表面与第一壁表面之间的距离小于第一侧表面和第一壁表面之间的距离。 第四侧表面和第二壁表面之间的距离小于第二侧表面和第二壁表面之间的距离。

    Magnetic head for perpendicular magnetic recording and method of manufacturing same
    9.
    发明授权
    Magnetic head for perpendicular magnetic recording and method of manufacturing same 有权
    用于垂直磁记录的磁头及其制造方法

    公开(公告)号：US07796361B2

    公开(公告)日：2010-09-14

    申请号：US11727371

    申请日：2007-03-26

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Hironori Araki ,  Shigeki Tanemura

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163

    摘要： A pole layer has a track width defining portion and a wide portion. The pole layer has: first and second side surfaces located opposite to each other in a first region extending from a medium facing surface to a position at a distance of 10 to 300 nm from the medium facing surface; third and fourth side surfaces located in a second region other than the first region; a fifth side surface located at the boundary between the first and second regions and connecting the first and third side surfaces to each other; and a sixth side surface located at the boundary between the first and second regions and connecting the second and fourth side surfaces to each other. The distance between the first and second side surfaces taken in the track width direction decreases with decreasing distance from the top surface of the substrate. The angle formed by the third and fourth side surfaces with respect to the direction orthogonal to the top surface of the substrate is smaller than that formed by the first and second side surfaces with respect to the direction orthogonal to the top surface of the substrate.

    摘要翻译： 极层具有轨道宽度限定部分和宽部分。 所述极层具有：第一和第二侧表面在从介质相对表面延伸到距介质面向表面10至300nm距离的位置的第一区域中彼此相对; 位于除了第一区域之外的第二区域中的第三和第四侧表面; 第五侧表面，位于第一和第二区域之间的边界处，并且将第一和第三侧表面彼此连接; 以及位于第一和第二区域之间的边界处并将第二和第四侧表面彼此连接的第六侧表面。 在轨道宽度方向上取得的第一和第二侧表面之间的距离随着距衬底顶表面的距离减小而减小。 由第三和第四侧面相对于与基板顶面垂直的方向形成的角度小于由第一和第二侧面相对于与基板顶面正交的方向形成的角度。

    Magnetic head for perpendicular magnetic recording having a specially configured shield layer
    10.
    发明授权
    Magnetic head for perpendicular magnetic recording having a specially configured shield layer 有权
    用于垂直磁记录的磁头，具有专门设计的屏蔽层

    公开(公告)号：US07656613B2

    公开(公告)日：2010-02-02

    申请号：US12320932

    申请日：2009-02-09

    申请人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Shigeki Tanemura ,  Hironori Araki

    发明人： Yoshitaka Sasaki ,  Hiroyuki Itoh ,  Dong-Hong Li ,  Shigeki Tanemura ,  Hironori Araki

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278

    摘要： A magnetic head comprises a pole layer, a shield layer, a gap layer disposed between the pole layer and the shield layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to the medium facing surface.

    摘要翻译： 磁头包括极层，屏蔽层，设置在极层和屏蔽层之间的间隙层和线圈。 屏蔽层包括：设置在间隙层上的第一层; 设置在所述第一层上的第二层; 以及设置在所述第二层上的第三层。 第一层具有位于面向介质的表面中的端面。 靠近介质相对表面的第二层和第三层中的每一层的端面位于与介质相对表面一定距离处。 第一非磁性层设置在第一层周围。 第二非磁性层设置在介质面向表面和第二层的靠近介质面向表面的端面之间。