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1. 发明申请

US20080266692A1 MAGNETIC DISK DEVICE AND DATA WRITING METHOD THEREOF 审中-公开
标题翻译：磁盘设备及其数据写入方法
公开(公告)号：US20080266692A1
公开(公告)日：2008-10-30
申请号：US12110177
申请日：2008-04-25
申请人： Hitoshi Komoriya , Michinaga Yamagishi , Toru Yokohata
发明人： Hitoshi Komoriya , Michinaga Yamagishi , Toru Yokohata
IPC分类号： G11B5/02 , G11B27/36 , G11B21/02
CPC分类号： G11B19/045 , G11B5/59655 , G11B5/59688 , G11B20/1217 , G11B20/182 , G11B2020/1232 , G11B2020/1281 , G11B2020/1298 , G11B2220/2516
摘要： A data writing method to write data on a disk in a disk device. The data is written in one radial direction. The method includes detecting a first deviation amount from a center in a current track and sector in the direction of a track on which data was previously written. A second deviation amount from the center in the current track and sector in the direction of a track on which data will be subsequently written is also detected. Data is written on the current track when the first deviation amount is equal to or smaller than a first threshold and the second deviation amount is equal to or smaller than a second threshold.
摘要翻译：一种在磁盘设备中的磁盘上写入数据的数据写入方法。数据以一个径向写入。该方法包括从先前写入数据的轨道的方向上检测当前轨迹中的中心和扇区的第一偏移量。还检测到当前轨道中的中心和在其后将写入数据的轨道的方向上的扇区的第二偏移量。当第一偏差量等于或小于第一阈值并且第二偏移量等于或小于第二阈值时，将数据写入当前轨迹。

2. 发明授权

US08296512B2 Recording method for a disk device having recording regions different in recording density 有权
标题翻译：具有记录密度不同的记录区域的盘装置的记录方法
公开(公告)号：US08296512B2
公开(公告)日：2012-10-23
申请号：US12360601
申请日：2009-01-27
申请人： Toru Yokohata , Hitoshi Komoriya , Takayuki Kawabe
发明人： Toru Yokohata , Hitoshi Komoriya , Takayuki Kawabe
IPC分类号： G06F12/00
CPC分类号： G11B5/012 , G11B5/09 , G11B5/5521 , G11B20/10 , G11B20/10527 , G11B20/1217 , G11B2020/1062 , G11B2020/10685 , G11B2020/10916 , G11B2020/1238 , G11B2020/1295 , G11B2220/2516
摘要： A recording method for a disk device includes the following steps. Sequential data is written into the medium along the track in a predetermined radial direction. Information indicating an end position along the track where the end of the sequential data is written into is stored. The information is read when additional sequential data is to be written into the medium. The additional data is written from a position along the track next to the end position indicated by the information in the predetermined radial direction. The information is updated so as to indicate an end position along the track where the end of the additional sequential data is written into.
摘要翻译：盘装置的记录方法包括以下步骤。顺序数据沿着轨道在预定的径向上被写入到介质中。存储指示顺序数据的结束被写入轨道的结束位置的信息。当附加顺序数据写入介质时，读取信息。附加数据从沿着预定径向的信息所指示的结束位置旁边的轨道的位置写入。信息被更新，以指示沿着附加顺序数据的结尾被写入的轨道的结束位置。

3. 发明申请

US20090190251A1 DATA RECORDING METHOD 有权
标题翻译：数据记录方法
公开(公告)号：US20090190251A1
公开(公告)日：2009-07-30
申请号：US12360601
申请日：2009-01-27
申请人： Toru Yokohata , Hitoshi Komoriya , Takayuki Kawabe
发明人： Toru Yokohata , Hitoshi Komoriya , Takayuki Kawabe
IPC分类号： G11B5/55
CPC分类号： G11B5/012 , G11B5/09 , G11B5/5521 , G11B20/10 , G11B20/10527 , G11B20/1217 , G11B2020/1062 , G11B2020/10685 , G11B2020/10916 , G11B2020/1238 , G11B2020/1295 , G11B2220/2516
摘要： A recording method for a disk device includes the following steps. Sequential data is written into the medium along the track in a predetermined radial direction. Information indicating an end position along the track where the end of the sequential data is written into is stored. The information is read when additional sequential data is to be written into the medium. The additional data is written from a position along the track next to the end position indicated by the information in the predetermined radial direction. The information is updated so as to indicate an end position along the track where the end of the additional sequential data is written into.
摘要翻译：盘装置的记录方法包括以下步骤。顺序数据沿着轨道在预定的径向上被写入到介质中。存储指示顺序数据的结束被写入轨道的结束位置的信息。当附加顺序数据写入介质时，读取信息。附加数据从沿着预定径向的信息所指示的结束位置旁边的轨道的位置写入。信息被更新，以指示沿着附加顺序数据的结尾被写入的轨道的结束位置。

4. 发明授权

US07057385B2 Method of inspecting magnetic recording medium based on contact duration time 失效
标题翻译：基于接触持续时间检查磁记录介质的方法
公开(公告)号：US07057385B2
公开(公告)日：2006-06-06
申请号：US10386637
申请日：2003-03-12
申请人： Toru Yokohata , Takahiro Imamura , Toshiya Fujita , Yojiro Ochiai , Masahiro Ozeki , Naoki Satake
发明人： Toru Yokohata , Takahiro Imamura , Toshiya Fujita , Yojiro Ochiai , Masahiro Ozeki , Naoki Satake
IPC分类号： G01R33/12
CPC分类号： G11B5/6005 , G01R33/1207 , G11B5/00 , G11B5/012 , G11B2005/001
摘要： A magnetic recording medium inspection method detects small protrusions that constitute defects on the surface of a magnetic recording medium. The method includes flying a glide inspection head at a predetermined height over the surface of the moving magnetic recording medium; detecting a contact duration time during which the glide head is in contact with a protrusion on the surface of the magnetic recording medium using a contact detection sensor attached to the glide inspection head; and determining the small protrusion based on the contact duration time.
摘要翻译：磁记录介质检查方法检测在磁记录介质的表面上构成缺陷的小突起。该方法包括在移动磁记录介质的表面上以预定高度飞行滑动检查头; 使用附接到所述滑行检查头的接触检测传感器来检测所述滑动头与所述磁记录介质的表面上的突起接触的接触持续时间; 以及基于所述接触持续时间确定所述小突起。

5. 发明授权

US06552872B2 Magnetic disk drive capable of preventing stiction of magnetic head 失效
标题翻译：磁盘驱动器，能够防止磁头的磁阻
公开(公告)号：US06552872B2
公开(公告)日：2003-04-22
申请号：US10132006
申请日：2002-04-25
申请人： Toru Yokohata , Takayuki Yamamoto
发明人： Toru Yokohata , Takayuki Yamamoto
IPC分类号： G11B2121
CPC分类号： G11B5/012 , G11B5/6005 , G11B5/82 , G11B21/21
摘要： A magnetic disk drive includes a magnetic recording medium rotatably mounted in a housing, a magnetic head slider having an electromagnetic transducer for reading/writing data from/to the magnetic recording medium, and an actuator for moving the magnetic head slider across tracks of the magnetic recording medium. The magnetic head slider has a medium opposing surface opposed to the magnetic recording medium, and is formed with an air bearing surface and a plurality of projections. The magnetic recording medium has a nondirectional texture which includes a surface roughness composed of numerous microscopic projections having an average top radius of 0.3 &mgr;m to 0.75 &mgr;m.
摘要翻译：磁盘驱动器包括可旋转地安装在壳体中的磁记录介质，具有用于从/从磁记录介质读取/写入数据的电磁换能器的磁头滑块，以及用于使磁头滑块移动到磁性磁道的轨道上的致动器记录介质。磁头滑块具有与磁记录介质相对的介质相对表面，并且形成有空气轴承表面和多个突起。磁记录介质具有非定向纹理，其包括由多个平均顶部半径为0.3μm至0.75μm的微观突起组成的表面粗糙度。

6. 发明申请

US20070127147A1 Contact detecting apparatus, and method for detecting contact 审中-公开
标题翻译：接触检测装置和接触检测方法
公开(公告)号：US20070127147A1
公开(公告)日：2007-06-07
申请号：US11387064
申请日：2006-03-23
申请人： Toru Yokohata , Takeshi Iwase , Takahisa Ueno , Seigo Igaki , Takahiro Imamura
发明人： Toru Yokohata , Takeshi Iwase , Takahisa Ueno , Seigo Igaki , Takahiro Imamura
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B5/6005 , G11B5/6064
摘要： In a contact detecting apparatus that detects contact of a head with a recording medium, a signal writing unit writes onto the recording medium, a signal that includes at least one predetermined frequency component; and a contact detecting unit detects the contact of the head with the recording medium based on an amplitude of the predetermined frequency component, by reading the signal written on the recording medium while changing a spacing between the head and the recording medium.
摘要翻译：在检测头与记录介质的接触的接触检测装置中，信号写入单元向记录介质写入包括至少一个预定频率分量的信号; 并且接触检测单元通过在改变头部和记录介质之间的间隔的同时读取记录在记录介质上的信号，基于预定频率分量的振幅来检测头与记录介质的接触。

7. 发明授权

US06891699B2 Recording medium drive including head slider having protection protuberance standing on air bearing surface 失效
标题翻译：记录介质驱动器，包括具有保护突起的头滑块，其位于空气轴承表面上
公开(公告)号：US06891699B2
公开(公告)日：2005-05-10
申请号：US10266851
申请日：2002-10-08
申请人： Masaki Kameyama , Kenrou Yamamoto , Masaharu Sugimoto , Yoshiharu Kasamatsu , Toru Yokohata , Kazuhiro Watanabe
发明人： Masaki Kameyama , Kenrou Yamamoto , Masaharu Sugimoto , Yoshiharu Kasamatsu , Toru Yokohata , Kazuhiro Watanabe
IPC分类号： G11B5/60 , G11B21/21
CPC分类号： G11B5/6082
摘要： A protection film is layered over the trailing or outflow end surface of a slider body in a head slider for a recording medium drive. A head element is embedded within the protection film. The head element generates heat in response to the supply of an electric current. The heat causes thermal expansion of the protection film. The tip end of the head element thus excessively approaches the recording disk beyond the medium-opposed surface of the head slider. The flying height of a protection protuberance is set smaller than a flying height of the head element even when the protection film suffers from thermal expansion. The protection protuberance is allowed to trace an orbit closer to the recording medium than the orbit of the head element. The protection protuberance is allowed to collide against obstacles on the recording medium in front of the head element.
摘要翻译：保护膜层叠在用于记录介质驱动的磁头滑块中的滑块体的尾部或流出端表面上。头部元件嵌入保护膜内。头元件响应于电流的供应而产生热量。热量导致保护膜的热膨胀。因此，头部元件的尖端过度地接近磁头滑块的介质相对表面之外的记录盘。即使当保护膜遭受热膨胀时，保护突起的飞行高度也被设定为小于头部元件的飞行高度。允许保护突起跟踪比头元件的轨道更靠近记录介质的轨道。允许保护突起与头元件前面的记录介质上的障碍物碰撞。

8. 发明授权

US06243233B1 Magnetic head slider and magnetic disk apparatus having the magnetic head slider 有权
标题翻译：具有磁头滑块的磁头滑块和磁盘装置
公开(公告)号：US06243233B1
公开(公告)日：2001-06-05
申请号：US09388391
申请日：1999-09-01
申请人： Takayuki Yamamoto , Yoshiharu Kasamatsu , Takashi Toyoguchi , Toru Yokohata , Ryosuke Koishi
发明人： Takayuki Yamamoto , Yoshiharu Kasamatsu , Takashi Toyoguchi , Toru Yokohata , Ryosuke Koishi
IPC分类号： G11B1732
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/255 , G11B5/3106 , G11B5/72 , G11B5/725 , G11B5/8408
摘要： A magnetic head slider has a plurality of rail planes to generate a floating force by using an air flow passing through a region between a group of the rail planes and a magnetic disk rotated at a constant rotating speed, and the slider floats up into the air according to the floating force. Also, the slider has a first pad arranged near an air inflow end of one rail plane and a second pad arranged near an air outflow end of the same or another rail plane, and a height of the first pad and a height of the second pad respectively range from 20 to 50 nm. Therefore, a coefficient of a friction between the pads and the magnetic disk can be reduced, and the wear of the pads can be prevented. Also, the contact of an electro-magnetic transducing device attached to the air outflow end of the rail plane with the magnetic disk can be prevented.
摘要翻译：磁头滑块具有多个轨道平面，通过使用通过一组轨道平面之间的区域的气流和以恒定转速旋转的磁盘来产生浮力，并且滑块浮动到空气中根据浮力。此外，滑块具有布置在一个轨道平面的空气流入端附近的第一焊盘和布置在相同或另一轨道平面的空气流出端附近的第二焊盘，并且第一焊盘的高度和第二焊盘的高度分别为20〜50nm。因此，可以减小焊盘和磁盘之间的摩擦系数，并且可以防止焊盘的磨损。此外，可以防止将附接到轨道平面的空气流出端的电磁转换装置与磁盘的接触。

9. 发明授权

US6120694A Head slider with projecting arranged on rails thereof 有权
标题翻译：头部滑块，其突起布置在轨道上
公开(公告)号：US6120694A
公开(公告)日：2000-09-19
申请号：US157050
申请日：1998-09-18
申请人： Yoshiharu Kasamatsu , Toru Yokohata , Takayuki Yamamoto , Takashi Toyoguchi , Seiji Yoneoka , Yoshifumi Mizoshita
发明人： Yoshiharu Kasamatsu , Toru Yokohata , Takayuki Yamamoto , Takashi Toyoguchi , Seiji Yoneoka , Yoshifumi Mizoshita
IPC分类号： G11B5/255 , G11B5/31 , G11B5/40 , G11B5/60 , G11B5/72 , G11B5/725 , G11B5/84 , G11B23/50 , B44C1/22 , B05D5/12 , G11B5/712
CPC分类号： G11B5/6005 , G11B5/6082 , G11B5/72 , G11B5/725 , G11B5/8408 , G11B23/507 , G11B5/255 , G11B5/3106 , G11B5/3163 , G11B5/40
摘要： A head slider is composed of a substrate having a transducer on its outflow end, a rail plane formed on a surface near both sides of the substrate facing a magnetic disk, and the first projection arranged on the rail planes near an inflow end of the substrate, and the second and third projections formed on the rail plane near an outflow end of the substrate.
摘要翻译：头滑块由在其流出端具有换能器的基板，形成在面对磁盘的基板两侧的表面上的轨道平面构成，第一突起布置在靠近基板的流入端的轨道平面上，并且在靠近基板的流出端的轨道平面上形成的第二和第三突起。

10. 发明授权

US6040958A Magnetic head slider and magnetic disk apparatus having the magnetic head slider 失效
标题翻译：具有磁头滑块的磁头滑块和磁盘装置
公开(公告)号：US6040958A
公开(公告)日：2000-03-21
申请号：US766967
申请日：1996-12-16
申请人： Takayuki Yamamoto , Yoshiharu Kasamatsu , Takashi Toyoguchi , Toru Yokohata , Ryosuke Koishi
发明人： Takayuki Yamamoto , Yoshiharu Kasamatsu , Takashi Toyoguchi , Toru Yokohata , Ryosuke Koishi
IPC分类号： G11B5/012 , G11B5/255 , G11B5/31 , G11B5/60 , G11B5/72 , G11B5/725 , G11B5/84 , G11B21/21
CPC分类号： G11B5/6005 , G11B5/72 , G11B5/725 , G11B5/8408 , G11B5/012 , G11B5/255 , G11B5/3106
摘要： A magnetic head slider has a plurality of rail planes to generate a floating force by using an air flow passing through a region between a group of the rail planes and a magnetic disk rotated at a constant rotating speed, and the slider floats up into the air according to the floating force. Also, the slider has a first pad arranged near an air inflow end of one rail plane and a second pad arranged near an air outflow end of the same or another rail plane, and a height of the first pad and a height of the second pad respectively range from 20 to 50 nm. Therefore, a coefficient of a friction between the pads and the magnetic disk can be reduced, and the wear of the pads can be prevented. Also, the contact of an electro-magnetic transducing device attached to the air outflow end of the rail plane with the magnetic disk can be prevented.
摘要翻译：磁头滑块具有多个轨道平面，通过使用通过一组轨道平面之间的区域的气流和以恒定转速旋转的磁盘来产生浮力，并且滑块浮动到空气中根据浮力。此外，滑块具有布置在一个轨道平面的空气流入端附近的第一焊盘和布置在相同或另一轨道平面的空气流出端附近的第二焊盘，并且第一焊盘的高度和第二焊盘的高度分别为20〜50nm。因此，可以减小焊盘和磁盘之间的摩擦系数，并且可以防止焊盘的磨损。此外，可以防止将附接到轨道平面的空气流出端的电磁转换装置与磁盘的接触。

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