公开(公告)号：US5504646A

公开(公告)日：1996-04-02

申请号：US77874

申请日：1993-06-18

申请人： Hideaki Tanaka ,  Kenichi Gomi ,  Yoshihiko Miyake ,  Sigeru Sano ,  Youichi Inomata ,  Hiroshi Yashiki ,  Yoshiki Kato ,  Masaki Ohura

发明人： Hideaki Tanaka ,  Kenichi Gomi ,  Yoshihiko Miyake ,  Sigeru Sano ,  Youichi Inomata ,  Hiroshi Yashiki ,  Yoshiki Kato ,  Masaki Ohura

IPC分类号： G11B5/41 ,  G11B5/58 ,  G11B5/60 ,  G11B5/72 ,  G11B5/82 ,  G11B5/84 ,  G11B23/50

CPC分类号： G11B5/6005 ,  G11B23/505 ,  G11B5/72 ,  G11B5/82 ,  G11B5/8408 ,  G11B5/41 ,  G11B5/581 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24537 ,  Y10T428/2457

摘要： There is provided a magnetic disk apparatus comprising: at least one magnetic disk having a magnetic layer and a surface protective layer on a substrate; a magnetic head which faces the magnetic disk in a rotating state with a micro gap and is supported by a slider; rotating means for rotating the magnetic disk; and a actuator for moving and positioning the magnetic head to a predetermined position on the magnetic disk, wherein a plurality of protrusions each having a flat surface are formed in at least a region on the surface of the magnetic disk where a contact start/stop operation can be executed. According to the above magnetic disk apparatus, since the frictional force between the disk and the head is small and the flying height of the head can be reduced and the good floating stability is obtained, so that the excellent recording and reproducing characteristics are derived. Further, protrusions are formed on the protective layer of the magnetic disk and the protrusion shapes are changed in a accordance with a radial position of the magnetic disk depending on the flying height of the magnetic head. According to the above magnetic disk apparatus, since the change of spacing can be set smaller than the change of the flying height, high recording density can be achieved.

摘要翻译： 提供一种磁盘装置，包括：在基板上具有磁性层和表面保护层的至少一个磁盘; 磁头，其在具有微小间隙的旋转状态下面对磁盘，并由滑块支撑; 用于旋转磁盘的旋转装置; 以及用于将磁头移动和定位到磁盘上的预定位置的致动器，其中在磁盘表面上的至少一个区域中形成有各自具有平坦表面的多个突起，其中接触开始/停止操作 可以执行。 根据上述磁盘装置，由于盘与头部之间的摩擦力小，能够降低头部的飞行高度，并且获得良好的浮动稳定性，从而导出良好的记录和再现特性。 此外，在磁盘的保护层上形成突起，并且根据磁头的飞行高度，根据磁盘的径向位置改变突起形状。 根据上述磁盘装置，由于可以将间隔的变化设定得小于飞行高度的变化，所以可以实现高的记录密度。

公开(公告)号：US5285343A

公开(公告)日：1994-02-08

申请号：US595414

申请日：1990-10-11

申请人： Hideaki Tanaka ,  Kenichi Gomi ,  Shoichi Sawahata ,  Maki Kondo ,  Masaki Ohura ,  Norikazu Tsumita ,  Katuo Uda ,  Yoshiki Kato ,  Yoshihiko Miyake ,  Toyoji Okuwaki ,  Noriaki Okamoto ,  Nobuo Nakagawa

发明人： Hideaki Tanaka ,  Kenichi Gomi ,  Shoichi Sawahata ,  Maki Kondo ,  Masaki Ohura ,  Norikazu Tsumita ,  Katuo Uda ,  Yoshiki Kato ,  Yoshihiko Miyake ,  Toyoji Okuwaki ,  Noriaki Okamoto ,  Nobuo Nakagawa

IPC分类号： G11B5/60 ,  G11B5/72 ,  G11B5/82 ,  G11B5/84 ,  G11B23/50 ,  G11B5/74

CPC分类号： B82Y10/00 ,  G11B23/505 ,  G11B5/6005 ,  G11B5/72 ,  G11B5/743 ,  G11B5/82 ,  G11B5/8408

摘要： There is provided a magnetic disk apparatus including at least one magnetic disk having a magnetic layer and a surface protective layer on a substrate; a magnetic head which faces the magnetic disk in a rotating state with a micro gap and is supported by a slider; rotating means for rotating the magnetic disk; and magnetic head positioning means for moving and positioning the magnetic head to a predetermined position on the magnetic disk, wherein a plurality of protrusions each having a flat surface are formed in at least a region on the surface of the magnetic disk where a contact start/stop operation can be executed, an area ratio of the protrusions per 1 mm.sup.2 lies within a range from 0.1 to 80%, a height of the protrusion of the maximum height among the protrusions lies within a range from 5 to 40 nm, and the magnetic layer is formed on the whole surface on the base plate. According to the above magnetic disk apparatus, the frictional force between the disk and the head is small, and the floating height of the head can be reduced, and good floating stability is obtained, so that excellent recording and reproducing characteristics are obtained.

摘要翻译： 提供一种磁盘装置，其包括在基板上具有磁性层和表面保护层的至少一个磁盘; 磁头，其在具有微小间隙的旋转状态下面对磁盘，并由滑块支撑; 用于旋转磁盘的旋转装置; 以及磁头定位装置，用于将磁头移动和定位到磁盘上的预定位置，其中在磁盘表面上的至少一个区域上形成有各自具有平坦表面的多个突起，其中接触开始/ 可以执行停止操作，每1mm 2的突起的面积比在0.1至80％的范围内，突起中的最大高度的突起的高度在5至40nm的范围内，并且磁 在基板上的整个表面上形成层。 根据上述磁盘装置，盘与头部之间的摩擦力小，可以降低头部的浮动高度，并且获得良好的浮动稳定性，从而获得优异的记录和再现特性。

公开(公告)号：US07518818B2

公开(公告)日：2009-04-14

申请号：US11282221

申请日：2005-11-18

申请人： Takanori Yamazaki ,  Hideaki Tanaka ,  Masayuki Kurita

发明人： Takanori Yamazaki ,  Hideaki Tanaka ,  Masayuki Kurita

IPC分类号： G11B21/02 ,  G11B19/02

CPC分类号： G11B5/6064 ,  G11B5/607 ,  G11B5/6082

摘要： Embodiments of the invention appropriately control the flying height of a magnetic head slider as necessary without making the magnetic head slider touch the magnetic disk. In one embodiment, when a magnetic disk drive is started, the level of electric power predefined for the ordinary temperature (room temperature) is read in from the internal memory of an MPU. A temperature sensor measures the internal temperature of the magnetic disk drive and sends it to the MPU. According to the temperature sent from the temperature sensor, the MPU calculates the level of electric power which should be applied to a flying height adjustment structure. According to the calculated electric power, the MPU increases or decreases the electric power applied to the flying height adjustment structure. At a flying height controlled (corrected) by the flying height adjustment structure, a magnetic head slider performs read/write on a magnetic disk.

摘要翻译： 本发明的实施例根据需要适当地控制磁头滑块的飞行高度，而不使磁头滑块接触磁盘。 在一个实施例中，当磁盘驱动器启动时，从MPU的内部存储器中读出为常温（室温）预定的电力水平。 温度传感器测量磁盘驱动器的内部温度，并将其发送到MPU。 根据温度传感器发出的温度，MPU计算应用于飞行高度调节结构的电力水平。 根据计算出的电力，MPU增加或减少施加到飞行高度调节结构的电力。 在通过飞行高度调节结构控制（校正）的飞行高度中，磁头滑块在磁盘上执行读/写。

公开(公告)号：US07480115B2

公开(公告)日：2009-01-20

申请号：US11494683

申请日：2006-07-26

申请人： Ono Hiroyuki ,  Mike Suk ,  Hideaki Tanaka ,  Masayuki Kurita

发明人： Ono Hiroyuki ,  Mike Suk ,  Hideaki Tanaka ,  Masayuki Kurita

IPC分类号： G11B21/02

CPC分类号： G11B5/6064 ,  G11B5/6005 ,  G11B2005/0021

摘要： Embodiment of the invention improve the productivity of a magnetic disk drive that controls the flying height of a magnetic head by use of a heater. According to an embodiment, in a method for manufacturing a magnetic disk drive that writes/reads information to/from a magnetic disk medium by use of a magnetic head including a heater adapted to control the flying height, the read and write performance of the magnetic head is tested; a heating condition used at the time of heating by the heater is determined on the basis of the test results; and a control parameter that specifies the amount of heating by the heater in the determined heating condition is determined.

摘要翻译： 本发明的实施例提高了通过使用加热器来控制磁头的飞行高度的磁盘驱动器的生产率。 根据一个实施例，在一种用于制造磁盘驱动器的方法中，该磁盘驱动器通过使用包括适于控制飞行高度的加热器的磁头来向/从磁盘介质读取/读取信息的磁盘驱动器，磁性读取和写入性能 头被测试 基于测试结果确定加热器加热时使用的加热条件; 并且确定在确定的加热条件中指定加热器的加热量的控制参数。

公开(公告)号：US20080273262A1

公开(公告)日：2008-11-06

申请号：US12006683

申请日：2008-01-04

申请人： Masayuki Kurita ,  Masashi Murai ,  Hideaki Tanaka ,  Noriaki Satoh ,  Hiroshi Fukuda ,  Tsukasa Fujimori

发明人： Masayuki Kurita ,  Masashi Murai ,  Hideaki Tanaka ,  Noriaki Satoh ,  Hiroshi Fukuda ,  Tsukasa Fujimori

IPC分类号： G11B33/14

CPC分类号： G11B33/121

摘要： Embodiments of the present invention help to improve the cost, mountability, and reliability of a magnetic disk drive that regulates a fly height of a magnetic head slider correspondingly to the operating altitude of the drive by using an air pressure sensor and a heater. According to one embodiment, a preamplifier is a semiconductor chip formed by three-dimensionally laminating thin film circuits on a bulk silicon wafer. An air pressure sensor is integrally formed on the semiconductor chip through a semiconductor process. The air pressure sensor is configured to include an isolating cavity, a diaphragm that deflecting in response to a change in a pressure difference between the isolating cavity and the outside, and lower and upper electrodes and for detecting variation in electrostatic capacitance. The preamplifier including the air pressure sensor integrally formed therein is attached to a flexible printed cable (FPC) to oppose the FPC. A through-hole is provided in a portion opposite the air pressure sensor of the FPC to introduce air pressure in an operating environment into a diaphragm of the air pressure sensor.

摘要翻译： 本发明的实施例有助于提高磁盘驱动器的成本，安装性和可靠性，其通过使用空气压力传感器和加热器来调节磁头滑块的飞行高度，与驱动器的操作高度相对应。 根据一个实施例，前置放大器是通过在体硅晶片上三维层叠薄膜电路而形成的半导体芯片。 通过半导体工艺在半导体芯片上整体地形成气压传感器。 空气压力传感器被构造成包括隔离腔，响应于隔离腔和外部之间的压差以及下部和上部电极的变化以及用于检测静电电容的变化而偏转的隔膜。 包括一体地形成在其中的空气压力传感器的前置放大器附接到柔性印刷电缆（FPC）以与FPC相对。 在与FPC的空气压力传感器相对的部分设置通孔，以将操作环境中的空气压力引入空气压力传感器的隔膜。

公开(公告)号：US20070188908A1

公开(公告)日：2007-08-16

申请号：US11706934

申请日：2007-02-14

申请人： Masayuki Kurita ,  Yukie Hiratsuka ,  Mikio Tokuyama ,  Hideaki Tanaka

发明人： Masayuki Kurita ,  Yukie Hiratsuka ,  Mikio Tokuyama ,  Hideaki Tanaka

IPC分类号： G11B21/02

CPC分类号： G11B19/26 ,  G11B5/5526 ,  G11B5/6005 ,  G11B5/6064 ,  G11B19/00 ,  G11B19/20

摘要： Embodiments in accordance with the present invention allow a magnetic disk drive to achieve noise reduction and low power consumption through rotation at a low speed and a high transfer rate through rotation at a high speed while allowing reliability to be maintained and achieving an improved recording density. An embodiment of a magnetic disk drive in accordance with the present invention includes, a magnetic disk medium driven at a plurality of rotational speeds, a magnetic head for recording and reproducing data in and from the magnetic disk medium, a heater for controlling a flying height of the magnetic head, and a control unit for controlling the current to the heater, and in that the control unit controls the current to the heater. The control unit controls the current to the heater according to the plurality of rotational speeds.

摘要翻译： 根据本发明的实施例允许磁盘驱动器通过以高速旋转而以低速旋转和高传送速率实现噪声降低和低功耗，同时允许保持可靠性并实现改进的记录密度。 根据本发明的磁盘驱动器的实施例包括：以多个旋转速度驱动的磁盘介质，用于在磁盘介质中记录和再现数据的磁头，用于控制飞行高度的加热器 的磁头，以及用于控制到加热器的电流的控制单元，并且控制单元控制到加热器的电流。 控制单元根据多个转速来控制加热器的电流。

公开(公告)号：US07153192B1

公开(公告)日：2006-12-26

申请号：US11252511

申请日：2005-10-18

申请人： Masayuki Kurita ,  Remmelt Pit ,  Shozo Saegusa ,  Toshiya Shiramatsu ,  Mike Suk ,  Hideaki Tanaka

发明人： Masayuki Kurita ,  Remmelt Pit ,  Shozo Saegusa ,  Toshiya Shiramatsu ,  Mike Suk ,  Hideaki Tanaka

IPC分类号： B24B1/00

CPC分类号： B24B39/06 ,  Y10T29/47 ,  Y10T29/49048

摘要： A method for selectively sensing and removing asperities from the surface of hard disk drive media is disclosed. A thermally controlled flying height burnish slider is flown on a test stand with its thermal flying height control deactivated. The burnish slider flies at a nominal flying height over the surface of the media to remove any existing loose particles from the surface. A glide slider coupled to a PZT sensor is then flown over the surface of the media, the PZT sensor head mapping locations of any asperities on the surface of the media. The thermal flying height controlled burnish slider is next flown over the surface of the media with the thermal flying height control activated. The thermal flying height control is actuated when a mapped location of an asperity on the surface is proximate to the burnish slider, causing the burnish slider to protrude, wearing off the asperity.

摘要翻译： 公开了一种用于从硬盘驱动器介质的表面选择性地感测和去除凹凸的方法。 热控飞行高度抛光滑块在测试台上飞行，其热飞行高度控制被禁用。 抛光滑块在介质表面上以标称浮动高度飞行，以从表面去除任何现有的松散颗粒。 然后将耦合到PZT传感器的滑动滑块飞过介质的表面，PZT传感器头映射介质表面上任何凹凸的位置。 随着热飞行高度控制的激活，热飞行高度控制的抛光滑块接着在介质表面上流动。 当表面上的凹凸的映射位置靠近抛光滑块时，热飞行高度控制被启动，导致抛光滑块突出，从而脱离凹凸。

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。

公开(公告)号：US20050024775A1

公开(公告)日：2005-02-03

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： G11B5/31 ,  G11B5/60 ,  G11B21/21

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。另外，为了仅使加热装置4和记录再生元件2,3的附近变形，从加热装置4和记录再生元件2,3的突出部 再现元件2和3由刚性小的树脂膜6包围，从而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， 目的是将结构材料从周向材料上切下来抵抗变形。

公开(公告)号：US07649714B2

公开(公告)日：2010-01-19

申请号：US11201569

申请日：2005-08-10

申请人： Atsushi Kato ,  Masayuki Kurita ,  Koji Miyake ,  Toshiya Shiramatsu ,  Hideaki Tanaka

发明人： Atsushi Kato ,  Masayuki Kurita ,  Koji Miyake ,  Toshiya Shiramatsu ,  Hideaki Tanaka

IPC分类号： G11B5/60

CPC分类号： G11B5/6005 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/40 ,  G11B5/6064 ,  G11B5/607

摘要： Embodiments of the invention improve the power consumption and response speed of a heater for the gap flying height (hg) adjustment, to minimize an influence that the heater has on a life of a read element, and to provide a heater having resistance lines reduced in breaking and ensuring higher reliability. In one embodiment, a read/write element is formed near an air bearing surface (ABS) on a slider, and the circumference of the read/write element is filled with alumina. The read/write element includes an upper magnetic pole piece, a lower magnetic pole piece, a coil, and a resist filling around the coil, and a read element (MR) for performing reading, and an upper shield and lower shield for protecting the read element from an external magnetic field. A heater for adjusting the flying height is provided between the slider and the read/write element but near the read/write element. A temperature gradient relaxing material having a thermal conductivity higher than that of the heater and that of a material (alumina) filling around the heater is formed near the heater.

摘要翻译： 本发明的实施例提高了用于间隙飞行高度（hg）调节的加热器的功率消耗和响应速度，以最小化加热器对读取元件的寿命的影响，并且提供具有减小的电阻线的加热器 打破并确保更高的可靠性。 在一个实施例中，在滑块上的空气轴承表面（ABS）附近形成读/写元件，并且读/写元件的圆周上填充有氧化铝。 读/写元件包括上磁极片，下磁极片，线圈和围绕线圈填充的抗蚀剂，以及用于执行读取的读取元件（MR），以及用于保护 从外部磁场读取元件。 用于调节飞行高度的加热器设置在滑块和读/写元件之间但靠近读/写元件。 在加热器附近形成导热率高于加热器的热导率的温度梯度松弛材料和填充在加热器周围的材料（氧化铝）的温度梯度松弛材料。