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41. 发明授权

US08593913B2 Magnetic recording device, controller thereof, and magnetic recording method 有权
标题翻译：磁记录装置，其控制器和磁记录方法
公开(公告)号：US08593913B2
公开(公告)日：2013-11-26
申请号：US13284293
申请日：2011-10-28
申请人： Yuichi Yamada , Akihiko Takeo , Hiroshi Isokawa
发明人： Yuichi Yamada , Akihiko Takeo , Hiroshi Isokawa
IPC分类号： G11B11/00
CPC分类号： G11B5/02 , G11B5/455 , G11B20/10314 , G11B20/10509 , G11B20/1879 , G11B2005/001 , G11B2005/0021 , G11B2220/2516
摘要： According to one embodiment, a magnetic recording device includes: a magnetic recording medium provided with data regions for data recording; a light output module which outputs an optical signal to be applied to a recording position where recording data is recorded of the data regions; a write head which records the recoding data at the recording position magnetically; a light quantity setting module which sets a light quantity value of the optical signal output from the light output module; a heat-assisted recording controller which performs a control so that the recording data is recorded by the write head at the recording position which is heat-assisted by applying an optical signal with the set light quantity value; and a controller which adjusts the light quantity value of the optical signal set by the light quantity setting module using the recording position being a part of the data regions.
摘要翻译：根据一个实施例，磁记录装置包括：磁记录介质，设置有用于数据记录的数据区; 光输出模块，其输出要施加到记录数据的数据区域的记录位置的光信号; 写入头，其在记录位置上磁记录记录数据; 光量设定模块，其设定从所述光输出模块输出的光信号的光量值; 一种热辅助记录控制器，其执行控制，使得记录数据由写入头记录在通过施加具有设定光量值的光信号而被热辅助的记录位置处; 以及控制器，其使用作为数据区域的一部分的记录位置来调整由光量设定模块设置的光信号的光量值。

42. 发明申请

US20130065083A1 METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM 有权
标题翻译：制造磁记录介质的方法
公开(公告)号：US20130065083A1
公开(公告)日：2013-03-14
申请号：US13541359
申请日：2012-07-03
申请人： Kazutaka Takizawa , Kaori Kimura , Takeshi Iwasaki , Akihiko Takeo
发明人： Kazutaka Takizawa , Kaori Kimura , Takeshi Iwasaki , Akihiko Takeo
IPC分类号： G11B5/84 , G11B5/62
CPC分类号： G11B5/855 , G11B5/3163
摘要： According to at least one embodiment, a metal peelable layer and a mask layer are formed on a magnetic recording layer, then, a projections pattern is formed on the mask layer, the projections pattern is transferred to the metal peelable layer and the magnetic recording layer in this order, and then the metal peelable layer is dissolved and removed by a solvent. The metal peelable layer is constituted of any of aluminum and an aluminum compound. An alkali solution is used as the solvent.
摘要翻译：根据至少一个实施例，在磁记录层上形成金属可剥离层和掩模层，然后在掩模层上形成突起图案，将突起图案转印到金属剥离层和磁记录层然后将金属可剥离层溶解并通过溶剂除去。金属剥离层由铝和铝化合物中的任一种构成。使用碱溶液作为溶剂。

43. 发明申请

US20120092791A1 HEAD GIMBAL ASSEMBLY AND DISK DRIVE WITH THE SAME 有权
标题翻译： HEAD GIMBAL组装和磁盘驱动器
公开(公告)号：US20120092791A1
公开(公告)日：2012-04-19
申请号：US13174647
申请日：2011-06-30
申请人： Tomoko TAGUCHI , Yuichi Yamada , Akihiko Takeo
发明人： Tomoko TAGUCHI , Yuichi Yamada , Akihiko Takeo
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/3133 , G11B5/6088 , G11B2005/0021
摘要： According to one embodiment, a head gimbal assembly includes a magnetic head for perpendicular, a suspension supporting the magnetic head, and a heating module configured to locally heat a recording area of the recording medium. A head section of the magnetic head includes a magnetic core including a main pole and a return pole forming a magnetic circuit in conjunction with the main pole, a coil configured to excite magnetic flux in the magnetic circuit, and a thermal conductor having thermal conductivity higher than thermal conductivity of the recording medium and including a heat absorbing portion configured to remove heat from the recording medium, and a contact portion configured to contact airflow produced, as the recording medium rotates, at a position other than a facing surface of a slider opposed to the recording medium and radiate heat.
摘要翻译：根据一个实施例，头部万向架组件包括用于垂直的磁头，支撑磁头的悬架以及被配置为局部加热记录介质的记录区域的加热模块。磁头的头部包括：磁芯，包括主极和形成与主极结合的磁路的返回极;配置成激励磁路中的磁通的线圈，以及导热系数更高的导热体并且包括被配置为从记录介质移除热量的吸热部分，以及接触部分，其被配置为接触作为记录介质旋转的气流，所述接触部分在与滑块相对的相对表面以外的位置处到记录介质并辐射热量。

44. 发明授权

US08034471B2 Magnetic recording medium, method of manufacturing magnetic recording medium and magnetic recording reproducing apparatus 有权
标题翻译：磁记录介质，磁记录介质的制造方法和磁记录重放装置
公开(公告)号：US08034471B2
公开(公告)日：2011-10-11
申请号：US12536225
申请日：2009-08-05
申请人： Shinichi Ishibashi , Migaku Takahashi , Shin Saito , Yuzo Sasaki , Atsushi Hashimoto , Gohei Kurokawa , Tomoyuki Maeda , Akihiko Takeo
发明人： Shinichi Ishibashi , Migaku Takahashi , Shin Saito , Yuzo Sasaki , Atsushi Hashimoto , Gohei Kurokawa , Tomoyuki Maeda , Akihiko Takeo
IPC分类号： G11B5/66
CPC分类号： G11B5/82 , G11B5/65 , G11B5/667 , G11B5/732
摘要： In a perpendicular magnetic recording medium in which at least a soft magnetic underlayer, an orientation control layer, a magnetic recording layer and a protective layer are formed on a non-magnetic substrate in order from the bottom, the orientation control layer has a laminated structure of two or more layers including an intermediate layer and a seed layer which is disposed closer to the non-magnetic substrate than the intermediate layer. The seed layer includes two or more kinds of elements having a face-centered cubic structure, has face-centered cubic (111) plane crystals oriented in a direction perpendicular to a substrate surface, and has a pseudo-hexagonal structure.
摘要翻译：在从底部起依次形成至少软磁性底层，取向控制层，磁记录层和保护层的垂直磁记录介质中，取向控制层具有层叠结构包括比中间层更靠近非磁性基板设置的中间层和种子层的两层以上的层。种子层包括具有面心立方结构的两种或更多种元件，具有在垂直于衬底表面的方向上取向的面心立方（111）面晶体，并且具有假六边形结构。

45. 发明授权

US07791829B2 Apparatus for assisting write operation using high frequency magnetic field in disk drive 有权
标题翻译：用于通过磁盘驱动器中的高频磁场辅助写入操作的装置
公开(公告)号：US07791829B2
公开(公告)日：2010-09-07
申请号：US12196628
申请日：2008-08-22
申请人： Akihiko Takeo , Junichi Akiyama , Kenichiro Yamada , Hitoshi Iwasaki , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
发明人： Akihiko Takeo , Junichi Akiyama , Kenichiro Yamada , Hitoshi Iwasaki , Masayuki Takagishi , Tomomi Funayama , Masahiro Takashita , Mariko Shimizu
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B2005/0005 , G11B2005/0024
摘要： According to one embodiment, a disk drive having a spin torque oscillator and designed to perform high frequency assisted writing. The disk drive has a magnetic disk, a magnetic head, a coil, and a drive current controller. The drive current controller controls a drive current to supply to the spin torque oscillator. To record data magnetically in the disk, the drive current controller supplies to the spin torque oscillator the drive current that changes in synchronism with the polarity inversion of the recording current supplied to the coil, which excites the recording magnetic pole of the magnetic head.
摘要翻译：根据一个实施例，一种具有自旋扭矩振荡器并被设计成执行高频辅助写入的盘驱动器。磁盘驱动器具有磁盘，磁头，线圈和驱动电流控制器。驱动电流控制器控制驱动电流供应到自旋扭矩振荡器。为了将数据磁性地记录在盘中，驱动电流控制器向旋转转矩振荡器提供驱动电流，该驱动电流与提供给线圈的记录电流的极性反转同步地变化，这激励磁头的记录磁极。

46. 发明申请

US20100165510A1 VERTICAL MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING REPRODUCING APPARATUS 审中-公开
标题翻译：垂直磁记录介质和磁记录重现装置
公开(公告)号：US20100165510A1
公开(公告)日：2010-07-01
申请号：US12601372
申请日：2008-05-21
申请人： Migaku Takahashi , Shin Saito , Tomoyuki Maeda , Akihiko Takeo , Yuzo Sasaki , Ryuji Sakaguchi
发明人： Migaku Takahashi , Shin Saito , Tomoyuki Maeda , Akihiko Takeo , Yuzo Sasaki , Ryuji Sakaguchi
IPC分类号： G11B5/82
CPC分类号： G11B5/667 , G11B5/65 , G11B5/66 , G11B5/7379
摘要： A magnetic recording medium comprising a substrate, at least one soft magnetic underlayer formed on the substrate, a perpendicular magnetic recording layer formed on the soft magnetic underlayer, and a protective layer formed on the perpendicular magnetic recording layer, is provided wherein the perpendicular magnetic recording layer is comprised of a primary recording layer, a non-magnetic intermediate layer and an auxiliary layer; the primary recording layer comprises magnetic crystal grains and grain boundary portions surrounding the magnetic crystal grains, and has a perpendicular magnetic anisotropy; the auxiliary layer has a negative magneto crystalline anisotropy; and the non-magnetic intermediate layer is formed between the primary recording layer and the auxiliary layer and comprises at least one metal selected from Ru, Rh and Ir, or at least one alloy thereof. This magnetic recording medium exhibits high heat resistance and good recording/reproducing characteristics, and enables a high recording density.
摘要翻译：一种磁记录介质，其特征在于，包括基板，形成在基板上的至少一个软磁性底层，形成在软磁性底层上的垂直磁记录层和形成在垂直磁记录层上的保护层，其中垂直磁记录层由主记录层，非磁性中间层和辅助层构成; 主记录层包括磁晶粒和围绕磁晶粒的晶界部分，并且具有垂直的磁各向异性; 辅助层具有负磁结晶各向异性; 并且非磁性中间层形成在初级记录层和辅助层之间，并且包含至少一种选自Ru，Rh和Ir的金属，或其至少一种合金。该磁记录介质具有高的耐热性和良好的记录/再现特性，并且能够实现高的记录密度。

47. 发明申请

US20090147401A1 MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 审中-公开
标题翻译：磁记录介质，其制造方法和磁记录/再现装置
公开(公告)号：US20090147401A1
公开(公告)日：2009-06-11
申请号：US12300073
申请日：2007-05-05
申请人： Migaku Takahashi , Shin Saito , Tomoyuki Maeda , Akihiko Takeo , Yuzo Sasaki , Ryuji Sakaguchi
发明人： Migaku Takahashi , Shin Saito , Tomoyuki Maeda , Akihiko Takeo , Yuzo Sasaki , Ryuji Sakaguchi
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： G11B5/667 , G11B5/7325
摘要： The present invention provides a magnetic recording medium capable of recording or reproducing high-density information by reducing the grain size of a perpendicular magnetic recording layer and improving vertical orientation, a method of manufacturing the same, and a magnetic recording/reproducing apparatus. The perpendicular magnetic recording medium includes: a non-magnetic substrate; and at least an soft magnetic layer, an under layer, an intermediate layer, and a perpendicular magnetic recording film that are formed on the non-magnetic substrate. At least one layer of the intermediate layer is made of an alloy material of an element having an fcc structure and an element having a bcc structure or an hcp structure, and has both a crystal structure having (111) orientation and an irregular layer lattice (stacking fault) caused by a mixture of the fcc structure and the bcc structure. The at least one layer of the intermediate layer is made of an alloy material of at least one element that is selected from a group composed of Pt, Ir, Pd, Au, Ni, and Co, which is a main ingredient, and has the fcc structure, and an element having the bcc structure or the hcp structure.
摘要翻译：本发明提供一种能够通过减小垂直磁记录层的晶粒尺寸并提高垂直取向来记录或再现高密度信息的磁记录介质，其制造方法和磁记录/再现装置。垂直磁记录介质包括：非磁性基板; 以及形成在非磁性基板上的至少软磁性层，下层，中间层和垂直磁记录膜。中间层的至少一层由具有fcc结构的元素和具有bcc结构或hcp结构的元素的合金材料制成，并且具有具有（111）取向的晶体结构和不规则层晶格（堆叠故障）由fcc结构和bcc结构的混合引起。中间层的至少一层由选自由作为主要成分的Pt，Ir，Pd，Au，Ni和Co组成的组中的至少一种元素的合金材料制成，并且具有 fcc结构，以及具有bcc结构或hcp结构的元素。

48. 发明授权

US07031120B2 Disk drive with magnetic head for perpendicular magnetic recording 有权
标题翻译：带磁头的磁盘驱动器，用于垂直磁记录
公开(公告)号：US07031120B2
公开(公告)日：2006-04-18
申请号：US10629915
申请日：2003-07-30
申请人： Akihiko Takeo
发明人： Akihiko Takeo
IPC分类号： G11B5/127 , G11B5/39 , G11B5/48
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/02 , G11B5/1278 , G11B5/332 , G11B5/3903 , G11B5/3909 , G11B5/3967 , G11B2005/0016 , G11B2005/0029 , G11B2005/3996
摘要： A disk drive of a perpendicular magnetic recording system uses a double-layered disk medium including a soft magnetic layer. This disk drive is configured to suppress any adverse effect on a read head element under a magnetic field of a magnetic disturbance applied in a perpendicular direction, which might be caused to occur by being accentuated by a soft magnetic layer.
摘要翻译：垂直磁记录系统的磁盘驱动器使用包括软磁层的双层盘介质。该磁盘驱动器被配置为在垂直方向施加的磁扰动的磁场下抑制对读头元件的任何不利影响，这可能由软磁层强化而发生。

49. 发明授权

US07023634B2 Data channel for processing user data and servo data in a disk drive adopting perpendicular magnetic recording system 失效
公开(公告)号：US07023634B2
公开(公告)日：2006-04-04
申请号：US10228340
申请日：2002-08-27
申请人： Akihiko Takeo
发明人： Akihiko Takeo
IPC分类号： G11B5/09 , G11B20/10 , G11B5/035
CPC分类号： G11B5/012
摘要： Provided in a disk drive of a perpendicular magnetic recording system is a data channel to execute signal processing suited to the characteristics of either servo data signals or user data signals read from a disk. This data channel decodes data by executing PRML signal processing of positive coefficient PR equalization for data signals of vertical rectangular waveform in the read signals read by a read head from the disk. The data channel converts servo signals of vertical rectangular waveform into differentiated waveform signals, and reproduces servo data from the differentiated waveform signals.

50. 发明授权

US06618227B2 Combination perpendicular record and reproduce head having an auxiliary pole recessed from an air bearing surface and spaced from one of a pair of reproducing element sheilds 失效
标题翻译：组合垂直记录和再现头，其具有从空气支承表面凹入并与一对再现元素边界之一间隔开的辅助极
公开(公告)号：US06618227B2
公开(公告)日：2003-09-09
申请号：US09797677
申请日：2001-03-05
申请人： Koji Yano , Akihiko Takeo
发明人： Koji Yano , Akihiko Takeo
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/00 , G11B5/012 , G11B5/1278 , G11B5/2652 , G11B5/4886 , G11B2005/0002 , G11B2005/0029 , G11B2005/3996
摘要： A magnetic recording apparatus has a two-layered medium of a soft magnetic backing layer and a perpendicular recording layer, and a perpendicular recording head having a recording section including a main magnetic pole, an auxiliary magnetic pole and an exciting coil, and a reproducing section including a reproducing element sandwiched between a pair of reproducing shields, the reproducing section and the recording section being formed separately from each other. The auxiliary magnetic pole is recessed from the air-bearing surface of the main magnetic pole, and the distance between the auxiliary magnetic pole and the reproducing shield positioned adjacent to the auxiliary magnetic pole is set to permit a magnetic field generated under the auxiliary magnetic pole to be larger than a magnetic field under the shield.
摘要翻译：磁记录装置具有软磁背衬层和垂直记录层的双层介质，以及具有记录部分的垂直记录头，记录部分包括主磁极，辅助磁极和励磁线圈，再现部分包括夹在一对再现屏蔽之间的再现元件，再现部分和记录部分彼此分开形成。辅助磁极从主磁极的空气轴承表面凹入，辅助磁极和与辅助磁极相邻的再生屏蔽之间的距离设定为允许在辅助磁极下产生的磁场大于屏蔽下的磁场。

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