会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 91. 发明授权
    • Write head design and method for reducing adjacent track interference at very narrow track widths
    • 用于在非常窄的轨道宽度上减少相邻轨道干扰的写头设计和方法
    • US08054586B2
    • 2011-11-08
    • US11286077
    • 2005-11-23
    • Hamid BalamaneYimin HsuAron PentekYi Zheng
    • Hamid BalamaneYimin HsuAron PentekYi Zheng
    • G11B5/33G11B5/127
    • G11B5/3163G11B5/112G11B5/1278G11B5/3116G11B5/3146G11B5/315Y10T29/49021
    • A perpendicular write head having a wrap around trailing shield for reducing stray field writing and adjacent track interference. A method for constructing such a write head allows for excellent control of side shield gap thickness and trailing shield gap thickness, and allows the ratio of side gap to trailing gap thicknesses to be maintained at about two to one as desired. The method includes depositing forming a write pole by constructing a mask which may include a bi-layer hard mask, and then ion milling to form the write pole. Once the write pole has been formed, a layer of alumina or some other non-magnetic material can be conformally deposited. A reactive ion mill (RIM) can be performed to open up the top of the write pole (remove the horizontally disposed portions of the alumina layer). Then, a second layer of alumina or some other non-magnetic material can be deposited, and the write pole can be plated. The thickness of the side shield gaps is defined by the sum of the final thicknesses of the first and second alumina layers, while the thickness of the first magnetic layer defines the thickness of the trailing shield gap.
    • 垂直写头,其具有围绕后屏蔽的卷绕,用于减少杂散场写入和相邻轨道干涉。 用于构造这样的写头的方法允许对侧屏蔽间隙厚度和后屏蔽间隙厚度的优良控制,并且允许侧间隙与后间隙厚度的比率根据需要保持在大约二对一。 该方法包括通过构成可包括双层硬掩模的掩模沉积形成写入极,然后进行离子铣削以形成写入极。 一旦形成了写极,就可以共形沉积一层氧化铝或其它非磁性材料。 可以执行反应离子磨(RIM)以打开写柱的顶部(去除氧化铝层的水平放置的部分)。 然后,可以沉积第二层氧化铝或一些其它非磁性材料,并且可以对写入极进行电镀。 侧屏蔽间隙的厚度由第一和第二氧化铝层的最终厚度之和限定,而第一磁性层的厚度限定了后屏蔽间隙的厚度。
    • 92. 发明授权
    • Control method for magnetic disk device, magnetic disk device, and magnetic disk
    • 磁盘装置,磁盘装置和磁盘的控制方法
    • US08049986B2
    • 2011-11-01
    • US12543845
    • 2009-08-19
    • Kenya ItoTakehiko Hamaguchi
    • Kenya ItoTakehiko Hamaguchi
    • G11B21/02G11B27/36G11B5/09
    • G11B5/012B82Y10/00G11B5/1278G11B5/743G11B5/746G11B5/82G11B2005/0013
    • According to one embodiment, a control method for a magnetic disk device includes writing data by varying a phase of the array period of the plurality of magnetic elements or a phase of the time period of the recording signal in one section of the track from a corresponding phase in another section of the track, reading a reproduction signal from the track, and determining a phase shift between the array period of the plurality of magnetic elements and the time period of the recording signal, based on a reproduction signal read from the one section and a reproduction signal read from the other section. In another embodiment, a magnetic disk includes a track in which magnetic elements are magnetically separated and arranged in an array period, and a phase of the array period in one section is different from a phase in another section of the track.
    • 根据一个实施例,一种用于磁盘装置的控制方法包括:通过改变多个磁性元件的阵列周期的相位或从轨道的一个部分中的记录信号的时间段的相位来写入数据 在轨道的另一部分中相位,从轨道读取再现信号,并且基于从一个部分读取的再现信号,确定多个磁性元件的阵列周期与记录信号的时间段之间的相移 以及从另一部分读取的再现信号。 在另一个实施例中,磁盘包括其中磁性元件以阵列周期被磁性地分离和布置的轨道,并且一个部分中的阵列周期的相位不同于轨道的另一部分中的相位。
    • 97. 发明授权
    • Multi drive test system for data storage device
    • 用于数据存储设备的多驱动测试系统
    • US08027801B2
    • 2011-09-27
    • US11513788
    • 2006-08-30
    • Shigeto NishiuchiSatoshi TakahashiMasashi TsuyamaTakahiro Nakagawa
    • Shigeto NishiuchiSatoshi TakahashiMasashi TsuyamaTakahiro Nakagawa
    • G01R31/28G01R11/02G01L1/00G01D9/02
    • G01R33/1207G11B19/048G11B20/1816G11B2220/2516
    • Embodiments of the invention provide a data storage device test method and data storage device manufacture method which allow a tester to perform an operation test of plural data storage devices connected thereto in a shorter period of time. In one embodiment, an operation test of each of plural HDDs 81-84 connected to a tester is performed by making plural HDDs 81-84 execute commands received from the tester, wherein, during a waiting period when exchange stops between the tester and, for example, HDD 81 of which operation test is being executed, the tester executes the operation test of another HDD. Such a waiting period occurs, for example, before HDD 81 becomes ready to receive a command, before a data transfer is completed and before HDD 81 becomes ready to receive the subsequent command. By using this waiting period, the tester issues a command to, for example, HDD 82 if the HDD is ready to receive a command or transfers data to the HDD if data transfer is possible.
    • 本发明的实施例提供了一种数据存储设备测试方法和数据存储设备制造方法,其允许测试者在更短的时间内对与其连接的多个数据存储设备进行操作测试。 在一个实施例中,通过使多个HDD 81-84执行从测试者接收到的命令来执行连接到测试器的多个HDD81-84中的每一个的操作测试,其中,在测试者之间的交换停止的等待期间, 例如,正在执行操作测试的HDD 81,测试者执行另一HDD的操作测试。 例如,在数据传送完成之前和HDD 81准备好接收后续命令之前,例如在HDD 81准备好接收命令之前发生这样的等待时段。 通过使用该等待期间,如果HDD准备好接收命令,则测试者向例如HDD 82发出命令,或者如果数据传输是可能的话将数据传送到HDD。
    • 100. 发明授权
    • Combined bulk thermal-assister and bulk eraser
    • 组合散热器和散装橡皮擦
    • US08014096B2
    • 2011-09-06
    • US12404254
    • 2009-03-13
    • Lidu HuangFu-ying HuangJia-Yang JuangByron Lengsfield
    • Lidu HuangFu-ying HuangJia-Yang JuangByron Lengsfield
    • G11B5/02
    • G11B5/0245G11B2005/0021
    • A combined bulk thermal-assister and bulk eraser. The bulk thermal-assister is configured to produce a temperature in a magnetic-recording disk in a hard-disk drive when the hard-disk drive is disposed in the bulk eraser. The temperature is about equal to a second temperature greater than a first temperature of the magnetic-recording disk. The bulk eraser is configured to erase recorded information from the magnetic-recording disk at the second temperature. The second temperature lowers a coercivity of the magnetic-recording disk so that, when recorded information is erased from the magnetic-recording disk at the second temperature, recorded information on the magnetic-recording disk is erased from a second magnetic-recording track in closer proximity to an inside diameter of the magnetic-recording disk than a first magnetic-recording track from which recorded information on the magnetic-recording disk may be erased, if recorded information were erased from the magnetic-recording disk at the first temperature.
    • 组合散热助焊剂和批量橡皮擦。 批量散热器被配置为当硬盘驱动器设置在批量擦除器中时在硬盘驱动器中的磁记录盘中产生温度。 温度大约等于大于磁记录盘的第一温度的第二温度。 批量擦除器被配置为在第二温度下擦除来自磁记录盘的记录信息。 第二温度降低磁记录盘的矫顽力,使得当在第二温度下从磁记录盘擦除记录信息时,磁记录盘上的记录信息从更接近的第二磁记录磁道擦除 接近磁记录盘的内径比第一磁记录轨道高,如果在第一温度下从磁记录盘擦除了记录信息,则磁记录盘上的记录信息可被擦除。