公开(公告)号：US20070230055A1

公开(公告)日：2007-10-04

申请号：US11723977

申请日：2007-03-22

Applicant: Satoshi Shirotori ,  Masatoshi Sakurai ,  Akira Kikitsu ,  Yoshiyuki Kamata ,  Kaori Kimura

Inventor： Satoshi Shirotori ,  Masatoshi Sakurai ,  Akira Kikitsu ,  Yoshiyuki Kamata ,  Kaori Kimura

IPC: G11B5/82

CPC classification number: G11B5/82 ,  G11B5/667 ,  G11B5/72 ,  G11B5/7315 ,  G11B5/7325 ,  G11B5/855

Abstract: A magnetic recording media includes a toroidal substrate, a surface thereof is divided into a recording area located in a central part between an outer peripheral edge and an inner peripheral edge, edge areas located within 100 μm or more and 2,000 μm or less from the outer and inner peripheral edges, respectively, and adjacent areas located between the edge areas and the recording area, respectively, a magnetic film on the substrate, and a protective film on the magnetic film, in which the magnetic film is thinner in the edge areas than that in the adjacent areas, and at least a part of the protective film in the edge areas is thicker than that in the adjacent areas.

Abstract translation: 磁记录介质包括环形基板，其表面被分成位于外周边缘和内周边缘之间的中心部分的记录区域，位于距离外部边缘100μm以上且2000μm以下的边缘区域 分别位于边缘区域和记录区域之间的内周边缘和相邻区域，基板上的磁性膜和磁性膜上的保护膜，其中磁性膜在边缘区域中比薄 在相邻区域中，边缘区域中的保护膜的至少一部分比相邻区域的保护膜厚。

公开(公告)号：US20070172584A1

公开(公告)日：2007-07-26

申请号：US11657720

申请日：2007-01-25

Applicant: Naoko Kihara ,  Satoshi Shirotori ,  Yoshiyuki Kamata ,  Masatoshi Sakurai

Inventor： Naoko Kihara ,  Satoshi Shirotori ,  Yoshiyuki Kamata ,  Masatoshi Sakurai

IPC: B05D5/12

CPC classification number: G11B5/855

Abstract: A method of manufacturing a patterned magnetic recording medium includes coating a magnetic film with a resist which is decomposed by exposure to electromagnetic radiation or an electron beam to have a low molecular weight, forming a pattern on the resist by an imprinting method, transferring the pattern to the magnetic film by using the resist having the pattern formed thereon as a mask, and removing the resist by exposing the resist to the electromagnetic radiation or the electron beam.

Abstract translation: 图案化磁记录介质的制造方法包括：通过用电磁辐射或电子束分解的抗蚀剂涂覆磁性膜以具有低分子量，通过压印方法在抗蚀剂上形成图案，转印图案 通过使用其上形成有图案的抗蚀剂作为掩模，并且通过将抗蚀剂暴露于电磁辐射或电子束来除去抗蚀剂到磁性膜。

公开(公告)号：US20070026265A1

公开(公告)日：2007-02-01

申请号：US11493652

申请日：2006-07-27

Applicant: Masatoshi Sakurai ,  Akira Kikitsu ,  Masahiro Oka

Inventor： Masatoshi Sakurai ,  Akira Kikitsu ,  Masahiro Oka

IPC: G11B5/706 ,  B05D3/12

CPC classification number: G11B5/855 ,  G11B5/82 ,  G11B5/865

Abstract: According to one embodiment, a patterned substrate used for a magnetic recording media having discrete tracks includes patterns of protrusions and recesses processed thereon, and a texture structure formed on each of the recesses.

Abstract translation: 根据一个实施例，用于具有离散轨道的磁记录介质的图案化衬底包括在其上处理的突起和凹部的图案，以及形成在每个凹部上的纹理结构。

公开(公告)号：US20070002481A1

公开(公告)日：2007-01-04

申请号：US11475863

申请日：2006-06-28

Applicant: Akira Kikitsu ,  Masatoshi Sakurai ,  Masahiro Oka

Inventor： Akira Kikitsu ,  Masatoshi Sakurai ,  Masahiro Oka

IPC: G11B5/09

CPC classification number: G11B5/82 ,  B82Y10/00 ,  G11B5/743

Abstract: According to one embodiment, a magnetic recording apparatus has a magnetic recording media including a substrate having protrusions and recesses corresponding to a servo zone and a data zone and a magnetic layer deposited thereon, and a read/write head including a pair of magnetic shields and a giant magnetoresistive element, in which a track pitch of the media ranges 20 to 300 nm, a linear velocity of the magnetic recording media is 11 m/s, and a distance m from the magnetic shield to the magnetic layer on the protrusions of the media and a distance d between the magnetic layer on the protrusions and that on the recesses in the servo zone of the media are satisfies the condition that the value of d/m is 0.2 or more and 3 or less.

Abstract translation: 根据一个实施例，磁记录装置具有磁记录介质，该磁记录介质包括具有与伺服区对应的突起和凹部的基板，以及沉积在其上的数据区和磁性层，以及包括一对磁屏蔽的读/写头 介质的磁道间距为20〜300nm，磁记录媒体的线速度为11m / s，从磁屏蔽到磁性层的距离m为大的磁阻元件， 介质和介质上的磁性层与介质的伺服区的凹部之间的距离d满足d / m的值为0.2以上且3以下的条件。

公开(公告)号：US20070000861A1

公开(公告)日：2007-01-04

申请号：US11475873

申请日：2006-06-28

Applicant: Yoshiyuki Kamata ,  Katsuyuki Naito ,  Akira Kikitsu ,  Masatoshi Sakurai ,  Masahiro Oka

Inventor： Yoshiyuki Kamata ,  Katsuyuki Naito ,  Akira Kikitsu ,  Masatoshi Sakurai ,  Masahiro Oka

IPC: B05D5/12 ,  B05D3/00 ,  B44C1/22 ,  B29C71/04 ,  C23F1/00

CPC classification number: C23F4/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855 ,  H01J2237/30466 ,  H01J2237/3174

Abstract: According to one embodiment, a method for manufacturing a magnetic recording medium includes forming patterns having protrusions and recesses of a ferromagnetic material onto a recording track section and a servo section on a substrate, forming a flattening film, a top surface of which is higher than that of the protrusion of the ferromagnetic material, onto the ferromagnetic material, and performing ion beam etching onto the flattening film up to a top surface of the protrusion of the ferromagnetic material, and determining an end point of flattening etching on the basis of a change in the total number of incident particles by means of an ion counter installed so as to be at an angle θ with respect to a perpendicular direction to the substrate in accordance with a material of the flattening film.

Abstract translation: 根据一个实施例，一种制造磁记录介质的方法包括将具有铁磁材料的突起和凹陷的图案形成在记录轨道部分和基板上的伺服部分上，形成平坦化膜，其顶表面高于 将铁磁材料的突出部分突出到铁磁材料上，并且对平坦化膜进行离子束蚀刻直到铁磁材料的突起的顶表面，并且基于变化确定平坦化蚀刻的终点 在通过离子计数器安装的入射颗粒的总数中，根据平坦化膜的材料相对于垂直于衬底的方向成角度θ。

公开(公告)号：US20060269789A1

公开(公告)日：2006-11-30

申请号：US11434832

申请日：2006-05-17

Applicant: Takaomi Toihara ,  Masatoshi Sakurai ,  Yasuo Fukui ,  Masuo Saitoh

Inventor： Takaomi Toihara ,  Masatoshi Sakurai ,  Yasuo Fukui ,  Masuo Saitoh

IPC: B32B9/00 ,  B32B19/00

CPC classification number: C04B35/58007 ,  C04B35/58014 ,  C04B35/58021 ,  C04B35/581 ,  C04B2235/3826 ,  C04B2235/3895 ,  Y10T428/24975 ,  Y10T428/265

Abstract: A hard multilayer coating that is to be disposed on a body, including: (a) a first coating layer disposed to be held in contact with the body, the first coating layer consisting of TiAlCrX1-aNa (wherein “X” represents carbon or oxygen, and “a” represents a mixed crystal ratio satisfying 0.5≦a≦1); (b) a second coating layer disposed on the first coating layer, the second coating layer being provided by a mixture layer consisting of TiAlCrX1-bNb (wherein “b” represents a mixed crystal ratio satisfying 0.5≦b≦1) and TiAl(SiC)X1-cNc (wherein “c” represents a mixed crystal ratio satisfying 0.5≦c≦1), or provided by a multilayer including a first sublayer consisting of the TiAlCrX1-bNb and a second sublayer consisting of the TiAl(SiC)X1-cNc, which are alternately superposed on each other; and (c) a third coating layer disposed on the second coating layer and constituting an outermost layer of the hard multilayer coating, the third coating layer consisting of TiAl(SiC)X1-dNd (wherein “d” represents a mixed crystal ratio satisfying 0.5≦d≦1).

Abstract translation: 要设置在主体上的硬质多层涂层，包括：（a）设置成与本体保持接触的第一涂层，由TiAlCrX 1-a N组成的第一涂层 （其中“X”表示碳或氧，“a”表示满足0.5 <= a <= 1的混合晶体比）。 （b）设置在第一涂层上的第二涂层，第二涂层由由TiAlCr x 1-b N b b组成的混合层提供（其中“b” “表示满足0.5 <= b <= 1）和TIAL（SIC）X 1-c N C c的混合晶体比（其中”c“表示混合晶体比 满足0.5≤c<= 1），或由包括由TiAlCr x 1-b N b B组成的第一子层的多层构成，以及由TiAl （SiC）X 1-c N C c C，其彼此交替重叠; 和（c）设置在第二涂层上并构成硬质多层涂层的最外层的第三涂层，由TiAl（SiC）X 1-n N d（其中“d”表示满足0.5 <= d <1的混合晶体比）。

公开(公告)号：US20060263642A1

公开(公告)日：2006-11-23

申请号：US11493807

申请日：2006-07-27

Applicant: Hiroyuki Hieda ,  Masatoshi Sakurai ,  Koji Asakawa ,  Toshiro Hiraoka ,  Katsuyuki Naito

Inventor： Hiroyuki Hieda ,  Masatoshi Sakurai ,  Koji Asakawa ,  Toshiro Hiraoka ,  Katsuyuki Naito

IPC: G11B5/64

CPC classification number: G11B7/24079 ,  G11B5/74 ,  G11B5/746 ,  G11B5/855 ,  G11B7/24085 ,  G11B2005/0005 ,  Y10T29/49021 ,  Y10T29/49025 ,  Y10T428/24479 ,  Y10T428/24545 ,  Y10T428/2457 ,  Y10T428/24975

Abstract: A recording medium includes a substrate, and a recording layer formed on the substrate having (a) a recording track band, and (b) recording cells regularly arrayed in the recording track band to form a plurality rows of sub-tracks. The recording cells included in each sub-track are formed apart from each other at a pitch P in the track direction. Nearest neighboring two recording cells, each positioned on adjacent two sub-tracks in the track band, are formed apart from each other at a pitch P/n in the track direction, where 2≦n≦5.

公开(公告)号：US07033643B2

公开(公告)日：2006-04-25

申请号：US10667493

申请日：2003-09-23

Applicant: Hiroaki Sugita ,  Masatoshi Sakurai ,  Kenichiro Yamakawa ,  Takahiro Yamamoto

Inventor： Hiroaki Sugita ,  Masatoshi Sakurai ,  Kenichiro Yamakawa ,  Takahiro Yamamoto

IPC: B05D3/12

CPC classification number: C23C14/5886 ,  B23B51/02 ,  B23B2222/28 ,  B23B2224/32 ,  B23B2228/10 ,  B23C5/10 ,  C23C14/58 ,  Y10T428/24438

Abstract: A process of manufacturing a coated body including a substrate and a hard coating disposed on the substrate, wherein the hard coating has (a) a surface smoothed to have a roughness with maximum height Rz of not larger than 1.2 μm, and (b) recesses each of which has a size of 0.5–6.0 μm and is formed in the surface, the process including a surface smoothing step of smoothing a surface of the hard coating by using abrasive particles such that the smoothed surface has the roughness with the maximum height Rz of not larger than 1.2 μm and such that the recesses each having the size of 0.5–6.0 μm are formed in the surface of the hard coating, wherein each of the abrasive particles used in the surface smoothing step is provided by a spherical-shaped core body made of a rubber and having a particle size of 0.1–2.0 mm, and hard abrasive grains each having a size of #3000–#10000 and adhering to an outer surface of the spherical-shaped core body.

Abstract translation: 一种制造包括基材和涂覆在基材上的硬涂层的涂层体的方法，其中所述硬涂层具有（a）平滑的表面，以使具有不大于1.2μm的最大高度Rz的粗糙度，和（b）凹陷 其中每个具有0.5-6.0μm的尺寸并形成在表面中，该工艺包括使用磨料颗粒使硬涂层的表面平滑的表面平滑化步骤，使得平滑表面具有最大高度Rz的粗糙度 不大于1.2μm，使得在硬涂层的表面上形成尺寸为0.5-6.0μm的凹部，其中在表面平滑化步骤中使用的每个磨粒由球形芯 由橡胶制成的粒径为0.1〜2.0mm的硬质磨粒和各种尺寸为＃3000〜＃10000的硬质磨粒，并附着在球形芯体的外表面。

公开(公告)号：US06977108B2

公开(公告)日：2005-12-20

申请号：US10102812

申请日：2002-03-22

Applicant: Hiroyuki Hieda ,  Masatoshi Sakurai ,  Koji Asakawa ,  Toshiro Hiraoka ,  Katsuyuki Naito

Inventor： Hiroyuki Hieda ,  Masatoshi Sakurai ,  Koji Asakawa ,  Toshiro Hiraoka ,  Katsuyuki Naito

IPC: G11B5/65 ,  G11B5/00 ,  G11B5/02 ,  G11B5/74 ,  G11B5/84 ,  G11B5/85 ,  G11B5/855 ,  G11B7/007 ,  G11B7/013 ,  G11B21/10 ,  G11B5/73 ,  G11B5/31

CPC classification number: G11B7/24079 ,  G11B5/74 ,  G11B5/746 ,  G11B5/855 ,  G11B7/24085 ,  G11B2005/0005 ,  Y10T29/49021 ,  Y10T29/49025 ,  Y10T428/24479 ,  Y10T428/24545 ,  Y10T428/2457 ,  Y10T428/24975

Abstract: A recording medium includes a substrate, and a recording layer formed on the substrate having (a) a recording track band, and (b) recording cells regularly arrayed in the recording track band to form a plurality rows of sub-tracks. The recording cells included in each sub-track are formed apart from each other at a pitch P in the track direction. Nearest neighboring two recording cells, each positioned on adjacent two sub-tracks in the track band, are formed apart from each other at a pitch P/n in the track direction, where 2≦n≦5.

Abstract translation: 记录介质包括基板和形成在基板上的记录层，具有（a）记录轨道带，以及（b）定期排列在记录轨道带中的记录单元以形成多行子轨道。 包括在每个子轨道中的记录单元以轨道方向上的间距P彼此分开地形成。 最靠近的两个记录单元分别位于轨道带中相邻的两个子轨道上，以轨道方向上的间距P / n彼此分开，其中2 <= n <= 5。

公开(公告)号：US20050219730A1

公开(公告)日：2005-10-06

申请号：US11087595

申请日：2005-03-24

Applicant: Masatoshi Sakurai ,  Makoto Asakura ,  Takeshi Okino

Inventor： Masatoshi Sakurai ,  Makoto Asakura ,  Takeshi Okino

IPC: G11B5/65 ,  G11B5/012 ,  G11B5/596 ,  G11B5/82 ,  G11B5/84 ,  G11B5/855 ,  G11B5/86 ,  G11B20/12 ,  G11B27/30 ,  G11B5/09

CPC classification number: G11B5/59633 ,  G11B5/855 ,  G11B5/865

Abstract: A magnetic recording media includes a servo region including a preamble region and a burst region and having marks of a magnetic film, and a data region having discrete tracks of the magnetic film. The burst region includes a signal section and a non-signal section, the signal section including rectangular marks of the magnetic film, in-plane geometry of which is a rectangle, formed in a periodic pattern in a track direction, and the non-signal section including marks of the magnetic film having a pattern different from the pattern of the rectangular marks in the signal section.

Abstract translation: 磁记录介质包括包括前导码区域和突发区域并具有磁性膜标记的伺服区域和具有磁膜的离散磁道的数据区域。 脉冲串区域包括信号部分和非信号部分，信号部分包括以磁迹方向周期性图案形成的磁性膜的矩形标记，其面内几何为矩形，并且非信号 包括具有与信号部分中的矩形标记的图案不同的图案的磁性膜的标记。