公开(公告)号：US07701669B2

公开(公告)日：2010-04-20

申请号：US11501583

申请日：2006-08-08

申请人： Kouichi Watanabe ,  Sunao Yonekawa

发明人： Kouichi Watanabe ,  Sunao Yonekawa

IPC分类号： G11B5/60

CPC分类号： G11B5/60

摘要： When the flying height of a magnetic head slider lowers, there arises the problem that the magnetic head slider assumes a forwardly falling attitude and a front edge portion of a leading end of the magnetic head slider comes into contact with a magnetic disk surface, causing damage to the disk surface. To address the problem, one aspect of the invention is directed to a magnetic head slider which includes an air bearing surface, a leading end and a trailing end. Three flying pads are formed on the air bearing surface and a step bearing surface is formed around the first and second flying pads near the leading end and a negative pressure groove for producing a negative pressure is formed in such a manner that the leading side is surrounded by the step bearing surface. The third flying pad is formed near the trailing end and is provided with a magnetic head. A step bearing is formed on the leading side of the third flying pad. Further, the magnetic head slider is formed with an aperture in a front edge portion of the leading end.

摘要翻译： 当磁头滑块的飞行高度降低时，出现磁头滑块呈向前倾斜的姿势，磁头滑块的前端的前缘部分与磁盘表面接触的问题，造成损坏 到磁盘表面。 为了解决该问题，本发明的一个方面涉及一种磁头滑动器，其包括空气轴承表面，前端和后端。 在空气轴承表面上形成三个飞垫，并且在前端附近形成围绕第一和第二飞垫的台阶承载面，并且以这样的方式形成用于产生负压的负压槽，使得前侧被包围 通过台阶承载面。 第三飞垫在后端附近形成并设置有磁头。 在第三飞垫的前侧形成有台阶轴承。 此外，磁头滑块在前端的前缘部形成有孔。

公开(公告)号：US20070030597A1

公开(公告)日：2007-02-08

申请号：US11501583

申请日：2006-08-08

申请人： Kouichi Watanabe ,  Sunao Yonekawa

发明人： Kouichi Watanabe ,  Sunao Yonekawa

IPC分类号： G11B5/60

CPC分类号： G11B5/60

摘要： When the flying height of a magnetic head slider lowers, there arises the problem that the magnetic head slider assumes a forwardly falling attitude and a front edge portion of a leading end of the magnetic head slider comes into contact with a magnetic disk surface, causing damage to the disk surface. To address the problem, one aspect of the invention is directed to a magnetic head slider which includes an air bearing surface, a leading end and a trailing end. Three flying pads are formed on the air bearing surface and a step bearing surface is formed around the first and second flying pads near the leading end and a negative pressure groove for producing a negative pressure is formed in such a manner that the leading side is surrounded by the step bearing surface. The third flying pad is formed near the trailing end and is provided with a magnetic head. A step bearing is formed on the leading side of the third flying pad. Further, the magnetic head slider is formed with an aperture in a front edge portion of the leading end. The aperture is 0.5 to 2 μm deep from the first and second flying pads.

摘要翻译： 当磁头滑块的飞行高度降低时，出现磁头滑块呈向前倾斜的姿势，磁头滑块的前端的前缘部分与磁盘表面接触的问题，造成损坏 到磁盘表面。 为了解决该问题，本发明的一个方面涉及一种磁头滑动器，其包括空气轴承表面，前端和后端。 在空气轴承表面上形成三个飞垫，并且在前端附近形成围绕第一和第二飞垫的台阶承载面，并且以这样的方式形成用于产生负压的负压槽，使得前侧被包围 通过台阶承载面。 第三飞垫在后端附近形成并设置有磁头。 在第三飞垫的前侧形成有台阶轴承。 此外，磁头滑块在前端的前缘部形成有孔。 孔距离第一和第二飞垫的深度为0.5至2μm。

公开(公告)号：US06992860B2

公开(公告)日：2006-01-31

申请号：US10372406

申请日：2003-02-25

申请人： Eiji Nakanishi ,  Yukihiro Isono ,  Shigeru Tadokoro ,  Sunao Yonekawa ,  Tetsuya Matsusaki ,  Masao Matsushita

发明人： Eiji Nakanishi ,  Yukihiro Isono ,  Shigeru Tadokoro ,  Sunao Yonekawa ,  Tetsuya Matsusaki ,  Masao Matsushita

IPC分类号： G11B5/60

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3106 ,  G11B5/3116 ,  G11B5/3136 ,  G11B5/3173 ,  G11B5/3967 ,  G11B5/40 ,  G11B2005/3996

摘要： Protrusion of head elements to an air bearing surface is effectively reduced and their contact with a recording medium is thereby prevented by forming a level gap (concave) of about 3 nm in a multilayered protective film on the air bearing surface in a part matching an inductive write thin film head in a recording/reproducing separated type magnetic head and thereby offsetting protrusion of the head elements to the air bearing surface due to thermal deformation of the heads.

摘要翻译： 头部元件向空气轴承表面的突出被有效地减少，并且因此通过在匹配感应的部分的空气轴承表面上的多层保护膜中形成约3nm的水平间隙（凹陷）来防止与记录介质的接触 在记录/再现分离型磁头中写入薄膜头，由此由于头的热变形而使头元件向空气轴承表面的突出。

公开(公告)号：US06329023B2

公开(公告)日：2001-12-11

申请号：US09784218

申请日：2001-02-16

申请人： Hiromitsu Tokisue ,  Sunao Yonekawa ,  Nobuyuki Ishii ,  Yasuyuki Horiguchi ,  Yoshishige Endo ,  Yasuhiro Yoshimura ,  Yutaka Ito ,  Osamu Narisawa ,  Hiroshi Yuyama ,  Youichi Inoue ,  Yukiko Ikeda

发明人： Hiromitsu Tokisue ,  Sunao Yonekawa ,  Nobuyuki Ishii ,  Yasuyuki Horiguchi ,  Yoshishige Endo ,  Yasuhiro Yoshimura ,  Yutaka Ito ,  Osamu Narisawa ,  Hiroshi Yuyama ,  Youichi Inoue ,  Yukiko Ikeda

IPC分类号： B05D512

CPC分类号： G11B5/6005 ,  G11B5/10 ,  G11B5/40 ,  G11B5/41

摘要： A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.

摘要翻译： 一种包括磁盘和磁头滑块的磁性硬盘驱动器，其特征在于，当通过使用涂覆在磁盘上的润滑剂进行测量时，所述磁头滑块涂覆有接触角为50°或更大的层，是免费的 由于润滑剂粘附到滑块表面引起的静摩擦起始故障。

公开(公告)号：US07733599B2

公开(公告)日：2010-06-08

申请号：US11499482

申请日：2006-08-03

申请人： Hiroaki Shigenaga ,  Sunao Yonekawa ,  Masao Iwakura ,  Masami Miyatake

发明人： Hiroaki Shigenaga ,  Sunao Yonekawa ,  Masao Iwakura ,  Masami Miyatake

IPC分类号： G11B5/012 ,  G11B17/00 ,  G11B33/14

CPC分类号： G11B33/1433

摘要： Embodiments of the invention provide a magnetic disk unit in which there has been adopted a structure fixing a base and a top plate and preventing a deformation by a bimetal effect. In one embodiment, the magnetic disk unit includes a magnetic disk; a head drive mechanism in which is mounted a head accessing the magnetic disk; a base accommodating the magnetic disk and the head drive mechanism, and possessing a flat part, in which a threaded hole has been formed, in a circumference of an opening edge; and a top cover which is formed by a material whose thermal expansion coefficient differs from that of the base, in which there is provided an escape hole, for a screw, position-aligned to the threaded hole of the flat part, and which is attached to the base by the screw penetrating through the threaded hole and the escape hole for the screw. A slip mechanism for reducing a slip friction resistance is provided respectively in a contact portion between the flat part and the top cover, and a contact portion between a head part of the screw and the top cover.

摘要翻译： 本发明的实施例提供一种磁盘单元，其中采用固定基座和顶板的结构，并且防止双金属效应的变形。 在一个实施例中，磁盘单元包括磁盘; 头驱动机构，其安装有磁头访问磁盘; 容纳磁盘和磁头驱动机构的基座，并且在开口边缘的圆周上具有形成有螺纹孔的平坦部分; 以及顶盖，其由与热膨胀系数不同的材料形成，所述材料具有与所述基座相对应的材料，所述基部设有用于与所述平坦部的所述螺纹孔对准的螺钉的排出孔， 通过螺钉穿过螺纹孔和螺钉的排出孔到基座。 分别在平坦部和顶盖之间的接触部以及螺钉的头部与顶盖之间的接触部分分别设置用于降低滑动摩擦阻力的滑动机构。

公开(公告)号：US20080080094A1

公开(公告)日：2008-04-03

申请号：US11904689

申请日：2007-09-27

申请人： Hiroshi Tani ,  Sunao Yonekawa

发明人： Hiroshi Tani ,  Sunao Yonekawa

IPC分类号： G11B5/60 ,  G11B15/64 ,  G11B21/20

CPC分类号： G11B17/32

摘要： Embodiments of the present invention help to prevent, in a magnetic head slider adapted to be able to control flying height of a head element, the occurrence of excessive frictional force, even in case of contact with a magnetic disk, and suppress vibration of the slider. According to one embodiment, an air bearing surface of a magnetic head slider includes a deep groove, a shallow-trench rail about 100 nm higher than the deep groove, a rear end shoulder, two leading end pads about 1 μm higher than the deep groove, a trailing end pad about 970-995 nm higher than the deep groove, and an element pad about 5-30 nm higher than the trailing end pad and flush with the leading end pads. A head element includes a magnetic head element and a heater. The element pad has an area of 50-500 μm2, and the magnetic head element is disposed near a central section of the element pad.

摘要翻译： 本发明的实施例有助于在适于能够控制头元件的飞行高度的磁头滑动器中，即使在与磁盘接触的情况下也会发生过大的摩擦力，并且抑制滑块的振动 。 根据一个实施例，磁头滑动器的空气轴承表面包括深沟槽，比深槽高约100nm的浅沟槽轨道，后端肩部，比深槽高约1米的两个前端焊盘 ，比深沟槽高约970-995nm的尾端垫，以及比后端垫高约5-30nm并与前端焊盘齐平的元件垫。 头元件包括磁头元件和加热器。 元件焊盘的面积为50-500μm2，磁头元件设置在元件焊盘的中央部分附近。

公开(公告)号：US07859794B2

公开(公告)日：2010-12-28

申请号：US11904689

申请日：2007-09-27

申请人： Hiroshi Tani ,  Sunao Yonekawa

发明人： Hiroshi Tani ,  Sunao Yonekawa

IPC分类号： G11B5/60

CPC分类号： G11B17/32

摘要： Embodiments of the present invention help to prevent, in a magnetic head slider adapted to be able to control flying height of a head element, the occurrence of excessive frictional force, even in case of contact with a magnetic disk, and suppress vibration of the slider. According to one embodiment, an air bearing surface of a magnetic head slider includes a deep groove, a shallow-trench rail about 100 nm higher than the deep groove, a rear end shoulder, two leading end pads about 1 μm higher than the deep groove, a trailing end pad about 970-995 nm higher than the deep groove, and an element pad about 5-30 nm higher than the trailing end pad and flush with the leading end pads. A head element includes a magnetic head element and a heater. The element pad has an area of 50-500 μm2, and the magnetic head element is disposed near a central section of the element pad.

摘要翻译： 本发明的实施例有助于在适于能够控制头元件的飞行高度的磁头滑动器中，即使在与磁盘接触的情况下也会发生过大的摩擦力，并且抑制滑块的振动 。 根据一个实施例，磁头滑块的空气轴承表面包括深沟槽，比深槽高约100nm的浅沟槽轨道，后端肩部，比深槽高约1微米的两个前端焊盘 ，比深沟槽高约970-995nm的尾端垫，以及比后端垫高约5-30nm并与前端焊盘齐平的元件垫。 头元件包括磁头元件和加热器。 元件焊盘的面积为50〜500μm2，磁头元件设置在元件焊盘的中央部附近。

公开(公告)号：US20070047130A1

公开(公告)日：2007-03-01

申请号：US11499482

申请日：2006-08-03

申请人： Hiroaki Shigenaga ,  Sunao Yonekawa ,  Masao Iwakura ,  Masami Miyatake

发明人： Hiroaki Shigenaga ,  Sunao Yonekawa ,  Masao Iwakura ,  Masami Miyatake

IPC分类号： G11B15/48

CPC分类号： G11B33/1433

摘要： Embodiments of the invention provide a magnetic disk unit in which there has been adopted a structure fixing a base and a top plate and preventing a deformation by a bimetal effect. In one embodiment, the magnetic disk unit includes a magnetic disk; a head drive mechanism in which is mounted a head accessing the magnetic disk; a base accommodating the magnetic disk and the head drive mechanism, and possessing a flat part, in which a threaded hole has been formed, in a circumference of an opening edge; and a top cover which is formed by a material whose thermal expansion coefficient differs from that of the base, in which there is provided an escape hole, for a screw, position-aligned to the threaded hole of the flat part, and which is attached to the base by the screw penetrating through the threaded hole and the escape hole for the screw. A slip mechanism for reducing a slip friction resistance is provided respectively in a contact portion between the flat part and the top cover, and a contact portion between a head part of the screw and the top cover.

摘要翻译： 本发明的实施例提供一种磁盘单元，其中采用固定基座和顶板的结构，并且防止双金属效应的变形。 在一个实施例中，磁盘单元包括磁盘; 头驱动机构，其安装有磁头访问磁盘; 容纳磁盘和磁头驱动机构的基座，并且在开口边缘的圆周上具有形成有螺纹孔的平坦部分; 以及顶盖，其由与热膨胀系数不同的材料形成，所述材料具有与所述基座相对应的材料，所述基部设有用于与所述平坦部的所述螺纹孔对准的螺钉的排出孔， 通过螺钉穿过螺纹孔和螺钉的排出孔到基座。 分别在平坦部和顶盖之间的接触部以及螺钉的头部与顶盖之间的接触部分分别设置用于降低滑动摩擦阻力的滑动机构。

公开(公告)号：US06249403B1

公开(公告)日：2001-06-19

申请号：US09080417

申请日：1998-05-18

申请人： Hiromitsu Tokisue ,  Sunao Yonekawa ,  Nobuyuki Ishii ,  Yasuyuki Horiguchi ,  Yoshishige Endo ,  Yasuhiro Yoshimura ,  Yutaka Ito ,  Osamu Narisawa ,  Hiroshi Yuyama ,  Youichi Inoue ,  Yukiko Ikeda

发明人： Hiromitsu Tokisue ,  Sunao Yonekawa ,  Nobuyuki Ishii ,  Yasuyuki Horiguchi ,  Yoshishige Endo ,  Yasuhiro Yoshimura ,  Yutaka Ito ,  Osamu Narisawa ,  Hiroshi Yuyama ,  Youichi Inoue ,  Yukiko Ikeda

IPC分类号： G11B5255

CPC分类号： G11B5/6005 ,  G11B5/10 ,  G11B5/40 ,  G11B5/41

摘要： A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50° or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.

公开(公告)号：US07095587B2

公开(公告)日：2006-08-22

申请号：US10659372

申请日：2003-09-11

申请人： Masayuki Kurita ,  Toshiya Shiramatsu ,  Hideaki Tanaka ,  Sunao Yonekawa ,  Koji Miyake ,  Hidekazu Kohira ,  Mikio Tokuyama

发明人： Masayuki Kurita ,  Toshiya Shiramatsu ,  Hideaki Tanaka ,  Sunao Yonekawa ,  Koji Miyake ,  Hidekazu Kohira ,  Mikio Tokuyama

IPC分类号： G11B5/127

CPC分类号： G11B5/6064 ,  G11B5/607

摘要： In a slider using thermal expansion type, being adjustable on a flying height thereof, having problems to be solved, i.e., to reduce the electric power consumption, and to lesson the heat load upon a reproducing element thereof, wherein a heating device 4 is located separating from tip portions of the recording and reproducing elements 2 and 3. Also, for deforming only the vicinity of the heating device 4 and the recording and reproducing elements 2 and 3, so as to protrude from, the heating device 4 and the recording and reproducing elements 2 and 3 are surrounded by a resin film 6 of small rigidity, thereby increasing an amount of protrusion of the recording and reproducing elements 2 and 3 per a unit of electric power, but without increasing temperature of the reproducing element 3, with an aim of the structure of cutting off the force from materials of circumferences against the deformation.

摘要翻译： 在使用热膨胀型的滑块中，在其飞行高度上可调节，具有要解决的问题，即降低电力消耗，以及对其再生元件上的热负荷的教训，其中加热装置4位于 与记录和再现元件2和3的尖端部分分离。 此外，为了仅使加热装置4和记录再现元件2,3的附近变形，从加热装置4和记录再现元件2和3突出，被小型树脂膜6包围 刚性，从而以每单位电力增加记录和再现元件2和3的突出量，但是不增加再现元件3的温度，其目的是将周围材料的力切断 变形。