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1. 发明申请

US20130057983A1 MAGNETIC RECORDING HEAD WITH ADJACENT TRACK INTERFERENCE SUPPRESION BY NOVEL MICROWAVE-ASSISTED MAGNETIC RECORDING ELEMENT 有权
标题翻译：通过新型微波辅助磁记录元件的相邻跟踪干扰的磁记录头
公开(公告)号：US20130057983A1
公开(公告)日：2013-03-07
申请号：US13226435
申请日：2011-09-06
申请人： Hiroyasu Tanabe , Hiroyasu Masuda
发明人： Hiroyasu Tanabe , Hiroyasu Masuda
IPC分类号： G11B5/127 , G11B5/60
CPC分类号： G11B5/012 , G11B5/1278 , G11B5/3146 , G11B2005/0024
摘要： A magnetic write head for magnetic data recording that incorporates a novel magnetic oscillation generator stricture that sets up a magnetic oscillation in the magnetic media for improving writing and that also narrows the write width and reduces adjacent track interference by suppressing writing in regions outside of the desired data track. The magnetic oscillation generating structure includes a centrally disposed magnetic assist element that generates an oscillating magnetic field that oscillates in a direction that will assist the write pole in writing to the magnetic medium. The magnetic oscillation generating structure also includes first and second magnetic non-assist elements at either side of the assist element. The non-assist elements generate a magnetic field that oscillates in a second direction that is opposite to the first direction, which counteracts the magnetic write assist from the centrally disposed magnetic assist element and acts to suppress writing in these side regions.
摘要翻译：一种用于磁数据记录的磁写头，其包含新的磁振荡发生器狭窄，其在磁介质中建立磁振荡以改善写入，并且还通过抑制在期望的外部区域中的写入来减小写入宽度并减少相邻轨道干扰数据轨磁振荡产生结构包括一个居中设置的磁辅助元件，该磁辅助元件产生一个振荡磁场，该振荡磁场在辅助磁极写入磁介质的方向上振荡。磁振荡产生结构还包括辅助元件两侧的第一和第二磁性非辅助元件。非辅助元件产生在与第一方向相反的第二方向上振荡的磁场，其抵消来自中心布置的磁辅助元件的磁写入辅助，并且用于抑制这些侧区域中的写入。

2. 发明授权

US07982991B2 Method and apparatus for determining set value of write current of magnetic head 有权
标题翻译：用于确定磁头写入电流设定值的方法和装置
公开(公告)号：US07982991B2
公开(公告)日：2011-07-19
申请号：US11807044
申请日：2007-05-24
申请人： Junzoh Noda , Masahiro Shimizu , Kouji Matsuda , Hiroyasu Masuda , Atsushi Tobari
发明人： Junzoh Noda , Masahiro Shimizu , Kouji Matsuda , Hiroyasu Masuda , Atsushi Tobari
IPC分类号： G11B5/09
CPC分类号： G11B5/5565 , G11B5/012
摘要： Embodiments of the present invention help to efficiently determine the appropriate setting of the write current of a magnetic head relative to temperature. According to one embodiment, a test computer determines the set value of a write current as a function of temperature for each head device portion from the relationship between a write current and an error rate. A test execution controller sets a selected head device portion and a write current to an AE, and writes data on a magnetic disk using the components in a HDD. The test execution controller reads the written data, and the error rate of the data from an error correcting section. The test execution controller repeats the same process with the write current varied. Upon completion of the measurement at the preset write currents, the test execution controller transfers the measurement data to the test computer.
摘要翻译：本发明的实施例有助于有效地确定磁头相对于温度的写入电流的适当设置。根据一个实施例，测试计算机根据写入电流和错误率之间的关系，确定作为每个磁头装置部分的温度的函数的写入电流的设定值。测试执行控制器将所选择的头部设备部分和写入电流设置为AE，并使用HDD中的组件将数据写入磁盘。测试执行控制器从错误校正部分读取写入的数据和数据的错误率。测试执行控制器重复相同的过程，写入电流变化。在预设写入电流完成测量后，测试执行控制器将测量数据传送到测试计算机。

3. 发明申请

US20090201598A1 Disc drive device 有权
标题翻译：光盘驱动器
公开(公告)号：US20090201598A1
公开(公告)日：2009-08-13
申请号：US12322026
申请日：2009-01-27
申请人： Hiroyasu Masuda , Yoshihiko Maeda , Kenichi Kuramoto , Masayuki Kurita , Kenji Kuroki
发明人： Hiroyasu Masuda , Yoshihiko Maeda , Kenichi Kuramoto , Masayuki Kurita , Kenji Kuroki
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B19/046 , G11B5/40 , G11B5/581 , G11B5/6029 , G11B5/6064 , G11B33/1406
摘要： Embodiments of the present invention precisely measure clearance variation by temperature change using a value in a RW channel. In an embodiment of the present invention, an HDD measures resolution by signals in a RW channel. The measured resolution shows variations depending on temperature according to two factors. One factor is the clearance variation depending on the temperature and the other is the variation in operational property of the RW channel depending on the temperature. The HDD compensates for the temperature variation of the resolution according to the two factors. The HDD uses two kinds of sensed temperature. One corresponds to the temperature inside an enclosure in which head sliders are provided and the other corresponds to the temperature of the chip in which the RW channel is implemented. Sensing the drive temperature and the channel temperature independently achieves precise compensation for the variation in the measured resolution caused by clearance variation and channel property.
摘要翻译：本发明的实施例使用RW通道中的值精确地测量通过温度变化的间隙变化。在本发明的实施例中，HDD通过RW信道中的信号来测量分辨率。测量的分辨率根据两个因素显示出根据温度的变化。一个因素是取决于温度的间隙变化，另一个因素是RW通道的操作性能随温度的变化。 HDD根据两个因素补偿分辨率的温度变化。 HDD使用两种感测温度。一个对应于其中提供磁头滑块的外壳内的温度，另一个对应于实现RW通道的芯片的温度。感测驱动温度和通道温度独立地对由间隙变化和通道特性引起的测量分辨率的变化进行精确补偿。

4. 发明授权

US07894149B2 Disc drive device 有权
标题翻译：光盘驱动器
公开(公告)号：US07894149B2
公开(公告)日：2011-02-22
申请号：US12322026
申请日：2009-01-27
申请人： Hiroyasu Masuda , Yoshihiko Maeda , Kenichi Kuramoto , Masayuki Kurita , Kenji Kuroki
发明人： Hiroyasu Masuda , Yoshihiko Maeda , Kenichi Kuramoto , Masayuki Kurita , Kenji Kuroki
IPC分类号： G11B27/36 , G11B20/10 , G11B21/02
CPC分类号： G11B19/046 , G11B5/40 , G11B5/581 , G11B5/6029 , G11B5/6064 , G11B33/1406
摘要： Embodiments of the present invention precisely measure clearance variation by temperature change using a value in a RW channel. In an embodiment of the present invention, an HDD measures resolution by signals in a RW channel. The measured resolution shows variations depending on temperature according to two factors. One factor is the clearance variation depending on the temperature and the other is the variation in operational property of the RW channel depending on the temperature. The HDD compensates for the temperature variation of the resolution according to the two factors. The HDD uses two kinds of sensed temperature. One corresponds to the temperature inside an enclosure in which head sliders are provided and the other corresponds to the temperature of the chip in which the RW channel is implemented. Sensing the drive temperature and the channel temperature independently achieves precise compensation for the variation in the measured resolution caused by clearance variation and channel property.
摘要翻译：本发明的实施例使用RW通道中的值精确地测量通过温度变化的间隙变化。在本发明的实施例中，HDD通过RW信道中的信号来测量分辨率。测量的分辨率根据两个因素显示出根据温度的变化。一个因素是取决于温度的间隙变化，另一个因素是RW通道的操作性能随温度的变化。 HDD根据两个因素补偿分辨率的温度变化。 HDD使用两种感测温度。一个对应于其中提供磁头滑块的外壳内的温度，另一个对应于实现RW通道的芯片的温度。感测驱动温度和通道温度独立地对由间隙变化和通道特性引起的测量分辨率的变化进行精确补偿。

5. 发明申请

US20070273993A1 Method and appartus for determining set value of write current of magnetic head 有权
标题翻译：用于确定磁头写入电流设定值的方法和程序
公开(公告)号：US20070273993A1
公开(公告)日：2007-11-29
申请号：US11807044
申请日：2007-05-24
申请人： Junzoh Noda , Masahiro Shimizu , Kouji Matsuda , Hiroyasu Masuda , Atsushi Tobari
发明人： Junzoh Noda , Masahiro Shimizu , Kouji Matsuda , Hiroyasu Masuda , Atsushi Tobari
IPC分类号： G11B27/36
CPC分类号： G11B5/5565 , G11B5/012
摘要： Embodiments of the present invention help to efficiently determine the appropriate setting of the write current of a magnetic head relative to temperature. According to one embodiment, a test computer determines the set value of a write current as a function of temperature for each head device portion from the relationship between a write current and an error rate. A test execution controller sets a selected head device portion and a write current to an AE, and writes data on a magnetic disk using the components in a HDD. The test execution controller reads the written data, and the error rate of the data from an error correcting section. The test execution controller repeats the same process with the write current varied. Upon completion of the measurement at the preset write currents, the test execution controller transfers the measurement data to the test computer.
摘要翻译：本发明的实施例有助于有效地确定磁头相对于温度的写入电流的适当设置。根据一个实施例，测试计算机根据写入电流和错误率之间的关系，确定作为每个磁头装置部分的温度的函数的写入电流的设定值。测试执行控制器将所选择的头部设备部分和写入电流设置为AE，并使用HDD中的组件将数据写入磁盘。测试执行控制器从错误校正部分读取写入的数据和数据的错误率。测试执行控制器重复相同的过程，写入电流变化。在预设写入电流完成测量后，测试执行控制器将测量数据传送到测试计算机。

6. 发明授权

US08553362B2 Magnetic recording head with adjacent track interference suppresion by novel microwave-assisted magnetic recording element 有权
标题翻译：具有相邻轨道干扰的磁记录头由新型微波辅助磁记录元件
公开(公告)号：US08553362B2
公开(公告)日：2013-10-08
申请号：US13226435
申请日：2011-09-06
申请人： Hiroyasu Tanabe , Hiroyasu Masuda
发明人： Hiroyasu Tanabe , Hiroyasu Masuda
IPC分类号： G11B5/127 , G11B5/23 , G11B5/265
CPC分类号： G11B5/012 , G11B5/1278 , G11B5/3146 , G11B2005/0024
摘要： A magnetic write head for magnetic data recording that incorporates a novel magnetic oscillation generator stricture that sets up a magnetic oscillation in the magnetic media for improving writing and that also narrows the write width and reduces adjacent track interference by suppressing writing in regions outside of the desired data track. The magnetic oscillation generating structure includes a centrally disposed magnetic assist element that generates an oscillating magnetic field that oscillates in a direction that will assist the write pole in writing to the magnetic medium. The magnetic oscillation generating structure also includes first and second magnetic non-assist elements at either side of the assist element. The non-assist elements generate a magnetic field that oscillates in a second direction that is opposite to the first direction, which counteracts the magnetic write assist from the centrally disposed magnetic assist element and acts to suppress writing in these side regions.
摘要翻译：一种用于磁数据记录的磁写头，其包含新的磁振荡发生器狭窄，其在磁介质中建立磁振荡以改善写入，并且还通过抑制在期望的外部区域中的写入来减小写入宽度并减少相邻轨道干扰数据轨磁振荡产生结构包括一个居中设置的磁辅助元件，该磁辅助元件产生一个振荡磁场，该振荡磁场在辅助磁极写入磁介质的方向上振荡。磁振荡产生结构还包括辅助元件两侧的第一和第二磁性非辅助元件。非辅助元件产生在与第一方向相反的第二方向上振荡的磁场，其抵消来自中心布置的磁辅助元件的磁写入辅助，并且用于抑制这些侧区域中的写入。

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