公开(公告)号：US08679654B2

公开(公告)日：2014-03-25

申请号：US13372116

申请日：2012-02-13

申请人： Hiroaki Nemoto ,  Ikuko Takekuma ,  Kimio Nakamura ,  Junichi Sayama

发明人： Hiroaki Nemoto ,  Ikuko Takekuma ,  Kimio Nakamura ,  Junichi Sayama

IPC分类号： G11B5/66 ,  G11B5/65 ,  C22C38/00 ,  C22C5/04

CPC分类号： G11B5/653 ,  C22C5/04 ,  C22C38/002 ,  C22C2202/02 ,  G11B5/65 ,  G11B5/66

摘要： Surface flatness of magnetic recording medium to which a magnetic recording layer made of L10 FePt magnetic alloy thin film, with distance between a magnetic head and a magnetic recording medium sufficiently reduced. The magnetic recording layer includes: magnetic layers containing a magnetic alloy including Fe and Pt as principal materials; and one non-magnetic material selected from carbon, oxide and nitride. The first magnetic layer disposed closer to a substrate has a granular structure in which magnetic alloy grains including FePt alloy as the principal material are separated from grain boundaries including the non-magnetic material as the principal material. The second magnetic layer disposed closer to the surface than the first magnetic layer is fabricated so as to have a homogeneous structure in which an FePt alloy and the non-magnetic material are mixed in a state finer than diameters of the FePt magnetic alloy grains in the first magnetic layer.

摘要翻译： 由L10FePt磁性合金薄膜制成的磁记录层，磁头和磁记录介质之间的距离充分降低的磁记录介质的表面平整度。 磁记录层包括：含有以Fe和Pt为主要材料的磁性合金的磁性层; 和一种选自碳，氧化物和氮化物的非磁性材料。 靠近基板设置的第一磁性层具有以包含FePt合金作为主要材料的磁性合金颗粒与包括非磁性材料在内的晶界作为主要材料的颗粒结构。 制造比第一磁性层更靠近表面的第二磁性层，以具有均匀的结构，其中FePt合金和非磁性材料以比FePt磁性合金粒子的直径小的状态混合 第一磁性层。

公开(公告)号：US20100188769A1

公开(公告)日：2010-07-29

申请号：US12710738

申请日：2010-02-23

申请人： Hiroaki Nemoto ,  Hideki Saga ,  Hirofumi Sukeda

发明人： Hiroaki Nemoto ,  Hideki Saga ,  Hirofumi Sukeda

IPC分类号： G11B5/02

CPC分类号： G11B11/10578 ,  G11B5/314 ,  G11B11/10502 ,  G11B11/10528 ,  G11B11/10576 ,  G11B2005/0005 ,  G11B2005/0021

摘要： In an information recording/reproducing method performing a thermo-magnetic recording, a tracking offset value of a recording light spot and/or a tracking offset value of a magnetic flux detecting element is changed in accordance with a radial position at which a tracking is performed at the present time, to make a direction of a magnetic wall of a recording magnetic domain in accord with a longitudinal direction of the magnetic flux detecting element. Alternatively, a shape of a heated area is changed to be in accord with the direction of the magnetic flux detecting means at respective radial position, to make the direction of the magnetic wall of the recording magnetic domain in accord with the longitudinal direction of the magnetic flux detecting element.

摘要翻译： 在执行热磁记录的信息记录/再现方法中，根据执行跟踪的径向位置改变记录光点的跟踪偏移值和/或磁通量检测元件的跟踪偏移值 目前为了根据磁通量检测元件的纵向方向制造记录磁畴的磁壁的方向。 或者，加热区域的形状根据磁通检测单元的径向位置的方向变化，使得记录磁畴的磁壁的方向与磁性体的长度方向一致 通量检测元件。

公开(公告)号：US07625646B2

公开(公告)日：2009-12-01

申请号：US11354085

申请日：2006-02-15

申请人： Yoshiyuki Hirayama ,  Ichiro Tamai ,  Takayuki Ichihara ,  Hiroyuki Nakagawa ,  Hiroaki Nemoto ,  Mineaki Kodama ,  Ikuko Takekuma

发明人： Yoshiyuki Hirayama ,  Ichiro Tamai ,  Takayuki Ichihara ,  Hiroyuki Nakagawa ,  Hiroaki Nemoto ,  Mineaki Kodama ,  Ikuko Takekuma

IPC分类号： G11B5/66

CPC分类号： G11B5/65 ,  G11B5/656 ,  G11B5/66 ,  G11B5/667 ,  G11B5/732 ,  G11B5/7325 ,  G11B5/84

摘要： Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.

摘要翻译： 公开了一种具有较低介质噪声，不易受热波动和高记录分辨率的垂直磁记录介质及其制造方法。 作为通过多个底层在非磁性基板上形成记录层时形成金属层的步骤，重复平均厚度为0.2nm以下的氧化物层的工序，晶粒 磁性隔离，而不会干扰垂直磁记录介质的记录层的晶粒的取向，或不降低记录层的晶粒的磁特性。

公开(公告)号：US07580111B2

公开(公告)日：2009-08-25

申请号：US10588263

申请日：2005-05-19

申请人： Takashi Miyamatsu ,  Hiroaki Nemoto ,  Yong Wang

发明人： Takashi Miyamatsu ,  Hiroaki Nemoto ,  Yong Wang

IPC分类号： G03B27/42 ,  G03B27/52

CPC分类号： G03F7/2041

摘要： An immersion exposure liquid which exhibits a high refractive index, prevents elution and dissolution of a photoresist film or its upper layer film component, and reduces defects during formation of a resist pattern when used in an immersion exposure method, and an immersion exposure method using the immersion exposure liquid. The immersion exposure liquid is used for an immersion exposure device or an immersion exposure method in which a substrate is exposed through a liquid provided between a lens of a projection optical system and the substrate, the immersion exposure liquid being liquid in an operating temperature range of the immersion exposure device and including an alicyclic hydrocarbon compound or a cyclic hydrocarbon compound containing a silicon atom in the ring structure.

摘要翻译： 表现出高折射率的浸渍曝光液体，防止光刻胶膜或其上层膜成分的溶出和溶解，并且在浸渍曝光方法中使用时减少形成抗蚀剂图案时的缺陷，以及使用 浸渍曝光液体。 浸渍曝光液体用于浸没曝光装置或浸渍曝光方法，其中通过设置在投影光学系统的透镜和基板之间的液体曝光基板，浸没曝光液体在液晶的工作温度范围内 浸渍曝光装置，并且在环结构中包含脂环族烃化合物或含有硅原子的环状烃化合物。

公开(公告)号：US20070223142A1

公开(公告)日：2007-09-27

申请号：US11726099

申请日：2007-03-20

申请人： Ikuko Takekuma ,  Hiroyuki Nakagawa ,  Hiroaki Nemoto ,  Yoshiyuki Hirayama

发明人： Ikuko Takekuma ,  Hiroyuki Nakagawa ,  Hiroaki Nemoto ,  Yoshiyuki Hirayama

IPC分类号： G11B5/74 ,  G11B5/66

CPC分类号： G11B5/66 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3967 ,  G11B5/656

摘要： According to embodiments of the present invention, a shielded pole writer and a perpendicular magnetic recording medium suitable thereto are combined to provide high medium SNR and excellent OW characteristic simultaneously. A perpendicular magnetic recording medium of a magnetic storage apparatus mounting a shielded pole writer, including a perpendicular magnetic recording medium having a recording layer of a three layered structure is used. A first recording layer has a granular structure consisting of grain boundaries containing an oxide and columnar grains comprising a CoCrPt alloy, in which a second recording layer and a third recording layer formed thereabove comprise Co as a main ingredient, contain Cr and do not contain an oxide, and the Cr concentration in the second recording layer is lower than the Cr concentration in the third recording layer.

摘要翻译： 根据本发明的实施例，组合屏蔽极写入器和适合于其的垂直磁记录介质，以同时提供高中等信噪比和优异的OW特性。 使用安装屏蔽极写入器的磁存储装置的垂直磁记录介质，其包括具有三层结构的记录层的垂直磁记录介质。 第一记录层具有由包含氧化物的晶界和包含CoCrPt合金的柱状晶粒构成的粒状结构，其中形成在其上的第二记录层和第三记录层包含Co作为主要成分，并且不含有 并且第二记录层中的Cr浓度低于第三记录层中的Cr浓度。

公开(公告)号：US07033686B2

公开(公告)日：2006-04-25

申请号：US10701603

申请日：2003-11-06

申请人： Yoshiyuki Hirayama ,  Ichiro Tamai ,  Takayuki Ichihara ,  Hiroyuki Nakagawa ,  Hiroaki Nemoto ,  Mineaki Kodama ,  Ikuko Takekuma

发明人： Yoshiyuki Hirayama ,  Ichiro Tamai ,  Takayuki Ichihara ,  Hiroyuki Nakagawa ,  Hiroaki Nemoto ,  Mineaki Kodama ,  Ikuko Takekuma

IPC分类号： G11B5/66 ,  G11B5/70

CPC分类号： G11B5/65 ,  G11B5/656 ,  G11B5/66 ,  G11B5/667 ,  G11B5/732 ,  G11B5/7325 ,  G11B5/84

摘要： Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.

公开(公告)号：US20050142378A1

公开(公告)日：2005-06-30

申请号：US11012835

申请日：2004-12-14

申请人： Hiroaki Nemoto ,  Yuzuru Hosoe ,  Yoshiyuki Hirayama ,  Mineaki Kodama

发明人： Hiroaki Nemoto ,  Yuzuru Hosoe ,  Yoshiyuki Hirayama ,  Mineaki Kodama

IPC分类号： G11B5/673 ,  G11B5/64 ,  G11B5/65 ,  G11B5/851 ,  B05D5/12

CPC分类号： G11B5/65 ,  G11B5/851 ,  Y10T428/12875

摘要： Embodiments of the invention provide a granular medium structure and a significant increase of the Ku value of a magnetic material at the same time using a non-metal material, thereby obtaining a magnetic recording medium capable of high density recording. In one embodiment, a magnetic metal grain in a granular magnetic film made of magnetic metal grains and a non-magnetic material is obtained by laminating a ferromagnetic exchange metallic element that contains mainly Co or Fe and a Pt element alternately and the lamination period is set between about 0.35 nm and 0.9 nm, preferably between about 0.4 nm and 0.55 nm.

摘要翻译： 本发明的实施例使用非金属材料同时提供磁性材料的粒状介质结构和显着提高磁性材料的K值，由此获得能够高密度的磁记录介质 记录。 在一个实施例中，由磁性金属颗粒和非磁性材料制成的颗粒状磁性膜中的磁性金属颗粒通过层叠主要包含Co或Fe和Pt元素的铁磁性交换金属元素交替地获得，并且设置层压周期 在约0.35nm和0.9nm之间，优选在约0.4nm和0.55nm之间。

公开(公告)号：US06778471B1

公开(公告)日：2004-08-17

申请号：US09604557

申请日：2000-06-27

申请人： Kazuetsu Yoshida ,  Hiroaki Nemoto ,  Hideki Saga

发明人： Kazuetsu Yoshida ,  Hiroaki Nemoto ,  Hideki Saga

IPC分类号： G11B1100

CPC分类号： G11B5/00 ,  G11B5/09 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0016 ,  G11B2005/0021

摘要： In an optical recording and magnetic-head reproducing system, the reproduced output is prevented from starting to decrease, upon the length of record bits getting shorter, in the range of the bit length larger than reproducing resolution of a magnetic reproducing head. When data are recorded magneto-optically on a magnetic recording medium, the radius of curvature of arcs constituting the boundary of recorded magnetic domains is made as large as possible so that the shape of the recorded spot may be substantially rectangular. As a result, it becomes possible to improve the efficiency of magnetic reproduction, and high-output as well as high-SN-ratio reproduction at high linear recording density can be achieved.

摘要翻译： 在光学记录和磁头再现系统中，在比特长度大于磁再现头的再现分辨率的范围内，在记录位长度越来越短的情况下，防止再现的输出开始减小。 当数据在磁记录介质上磁光记录时，构成记录磁畴的边界的弧的曲率半径尽可能大，使得记录点的形状可以是大致矩形。 结果，可以提高磁再现的效率，并且可以实现在高线性记录密度下的高输出以及高SN比再现。

公开(公告)号：US06368774B1

公开(公告)日：2002-04-09

申请号：US09585623

申请日：2000-06-02

申请人： Kouichi Sakurai ,  Hiroaki Nemoto ,  Atsushi Kumano

发明人： Kouichi Sakurai ,  Hiroaki Nemoto ,  Atsushi Kumano

IPC分类号： G03F7027

CPC分类号： G03F1/56 ,  G02B5/223 ,  G03F7/0007

摘要： A radiation sensitive composition comprising (A), a mixture of an isoindolinone pigment and a yellow organic pigment, (B) an alkali-soluble resin, (C) a polyfunctional monomer and (D) a photopolymerization initiator. The composition is useful for production of an additive or subtractive color filter which is used in a reflection-type color liquid crystal display device.

摘要翻译： 一种辐射敏感性组合物，其包含（A），异吲哚啉酮颜料和黄色有机颜料的混合物，（B）碱溶性树脂，（C）多官能单体和（D）光聚合引发剂。 该组合物可用于生产用于反射型彩色液晶显示装置的添加剂或减色滤色器。

公开(公告)号：USD425898S

公开(公告)日：2000-05-30

申请号：US85438

申请日：1998-03-09

申请人： Shoji Iwaasa ,  Norihiro Kato ,  Hiroaki Nemoto

设计人： Shoji Iwaasa ,  Norihiro Kato ,  Hiroaki Nemoto