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1. 发明授权

US5824920A Apparatus for evaluating magnetic recording medium 失效
标题翻译：磁记录介质评估装置
公开(公告)号：US5824920A
公开(公告)日：1998-10-20
申请号：US696367
申请日：1996-08-13
申请人： Masaharu Sugimoto , Minoru Takahashi , Hiroaki Wakamatsu , Hirosi Satou
发明人： Masaharu Sugimoto , Minoru Takahashi , Hiroaki Wakamatsu , Hirosi Satou
IPC分类号： G11B33/14 , G11B5/455 , G11B5/60 , G11B5/84 , G11B20/18 , G11B21/21 , G11B33/10
CPC分类号： G11B5/6005 , G11B21/21 , G11B33/10
摘要： A method of obtaining a limit glide height in flying a head above a recording medium being rotated. The first step is storing the medium and the head into a chamber, stepwise reducing an air pressure in the chamber, and measuring a flying height of the head and a frequency of contact of the head with the medium in each step. The second step is performing head vanish to polish away projections on the medium by means of the head under such conditions that the head at least intermittently comes into contact with the medium. The third step is reproducing the air pressure in each step in the first step, and again measuring a flying height of the head and a frequency of contact of the head with the medium in each step. The final step is comparing a measured value of the frequency of contact in each step in the first step and a measured value of the frequency of contact in each step in the third step, and obtaining the limit glide height defined as a flying height of the head corresponding to the step in which a rate of change in the frequency of contact becomes largest.
摘要翻译：一种获得在旋转的记录介质上方飞行头部的限制滑行高度的方法。第一步是将介质和头部储存在室中，逐步降低室内的空气压力，并测量头部的飞行高度以及头部与介质在每个步骤中的接触频率。第二步是在头部至少间断地与介质接触的条件下，通过头部进行头部消除以消除媒介上的突起。第三步骤是在第一步骤中再现每个步骤中的空气压力，并且在每个步骤中再次测量头部的飞行高度和头部与介质的接触频率。最后一步是将第一步骤的每个步骤中的接触频率的测量值与第三步骤中的每个步骤中的接触频率的测量值进行比较，并且获得限定为飞行高度的限制滑翔高度对应于接触频率变化率最大的步骤。

2. 发明授权

US5726839A Magnetic head having bypass magnetic path and set magnetic reluctance relationship 失效
标题翻译：磁头具有旁路磁路和磁阻磁阻关系
公开(公告)号：US5726839A
公开(公告)日：1998-03-10
申请号：US649336
申请日：1996-05-17
申请人： Masayoshi Shinohara , Minoru Takahashi , Hiroaki Wakamatsu
发明人： Masayoshi Shinohara , Minoru Takahashi , Hiroaki Wakamatsu
IPC分类号： G11B5/31 , G11B5/127 , G11B5/39
CPC分类号： G11B5/3967 , G11B5/1278 , G11B5/3906
摘要： A magnetic head for vertical magnetic recording includes a return portion having a sufficiently large area confronting a magnetic recording medium, a main pole having its front end portion confronting the magnetic recording medium, a magneto-resistive film provided in the middle of a magnetic circuit, including the return portion, the main pole, and the magnetic recording medium. The magnetic head has its initial magnetization set in the direction virtually orthogonal to the direction of flux in the magnetic circuit. A first and a second terminal are connected to both ends of the magneto-resistive film. The magnetic circuit also includes a bypass magnetic path magnetically connecting the main pole with the return portion.
摘要翻译：用于垂直磁记录的磁头包括具有与磁记录介质相对的足够大的面积的返回部分，具有与磁记录介质相对的其前端部分的主极，设置在磁路中间的磁阻膜，包括返回部分，主极和磁记录介质。磁头的初始磁化强度设定在与磁路中磁通方向实际正交的方向上。第一和第二端子连接到磁阻膜的两端。磁路还包括将主极与返回部分磁性连接的旁路磁路。

3. 发明授权

US08304132B2 Fuel cell 有权
标题翻译：燃料电池
公开(公告)号：US08304132B2
公开(公告)日：2012-11-06
申请号：US13165323
申请日：2011-06-21
申请人： Hisashi Chigusa , Katsumi Ichikawa , Hitoshi Koda , Akiko Fujisawa , Shinichi Onodera , Hiroaki Wakamatsu , Shinichi Kanbayashi , Naoyuki Takazawa
发明人： Hisashi Chigusa , Katsumi Ichikawa , Hitoshi Koda , Akiko Fujisawa , Shinichi Onodera , Hiroaki Wakamatsu , Shinichi Kanbayashi , Naoyuki Takazawa
IPC分类号： H01M8/10
CPC分类号： H01M8/1004 , H01M4/8626 , H01M8/1011 , H01M8/241 , H01M8/242 , H01M8/249 , Y02E60/523
摘要： According to one embodiment, a fuel cell includes a membrane electrode assembly including a plurality of unit cells which are composed of an electrolyte membrane, an anode including anode catalyst layers arranged at intervals on one of surfaces of the electrolyte membrane, and anode gas diffusion layers stacked on the anode catalyst layers, and a cathode including cathode catalyst layers arranged at intervals on the other surface of the electrolyte membrane and opposed to the anode catalyst layers, respectively, and cathode gas diffusion layers stacked on the cathode catalyst layers, wherein a thickness of at least one of the anode catalyst layer and the cathode catalyst layer of one of the unit cells, which neighbor each other, gradually decreases toward the other of the unit cells.
摘要翻译：根据一个实施例，燃料电池包括膜电极组件，该膜电极组件包括由电解质膜组成的多个单元电池，包括阳极催化剂层的阳极，阳极催化剂层间隔布置在电解质膜的一个表面上，阳极气体扩散层堆叠在阳极催化剂层上的阴极催化剂层，以及阴极催化剂层，阴极催化剂层分别间隔设置在电解质膜的另一个表面上，并分别与阳极催化剂层相对，阴极气体扩散层层叠在阴极催化剂层上，的彼此相邻的一个单位电池的阳极催化剂层和阴极催化剂层中的至少一个朝着另一个单元电池逐渐减小。

4. 发明授权

US5963385A Magnetic recording/reproducing apparatus and method for supplying a current to a magnetic head to stabilize a magnetized state of a magnet pole 失效
标题翻译：用于向磁头供给电流以稳定磁极的磁化状态的磁记录/再现装置和方法
公开(公告)号：US5963385A
公开(公告)日：1999-10-05
申请号：US851809
申请日：1997-05-06
申请人： Noboru Takada , Chie Takeda , Hiroaki Wakamatsu , Masayoshi Shinohara , Kenji Sato , Kenichi Aoshima
发明人： Noboru Takada , Chie Takeda , Hiroaki Wakamatsu , Masayoshi Shinohara , Kenji Sato , Kenichi Aoshima
IPC分类号： G11B5/09 , G11B5/00 , G11B5/02 , G11B5/127 , G11B5/455 , G11B19/04 , G11B20/10 , G11B27/36
CPC分类号： G11B5/455 , G11B20/10009 , G11B5/09 , G11B5/1278 , G11B19/04 , G11B2005/0008 , G11B2005/0029 , G11B27/36 , G11B5/012
摘要： There is provided a magnetic recording/reproducing apparatus which has an improved reliability for a reproduced signal by eliminating a deformation in a reproduced signal waveform due to a residual magnetization generated in a magnetic head. The magnetic recording/reproducing apparatus has a magnetic recording medium including a magnetic film to which information is magnetically recorded and a thin-film magnetic head including a magnetic pole and a coil provided around the magnetic pole. A current supplying circuit supplies a current to the coil so that a magnetic state of the magnetic pole is stabilized. The current is supplied to the coil after a recording operation has been completed by the thin-film magnetic head. The current may demagnetize the magnetic pole of the magnetic head, or stabilize the magnetic state of the magnetic pole.
摘要翻译：提供了一种磁记录/再现装置，其通过消除由于在磁头中产生的剩余磁化引起的再现信号波形中的变形，对再现信号具有改进的可靠性。磁记录/再现装置具有磁记录介质，该磁记录介质包括磁信息被磁记录的磁膜和包括设在磁极周围的磁极和线圈的薄膜磁头。电流供给电路向线圈供给电流，使得磁极的磁状态稳定。在通过薄膜磁头完成记录操作之后，电流被提供给线圈。电流可以使磁头的磁极退磁，或使磁极的磁状态稳定。

5. 发明申请

US20110275001A1 FUEL CELL 有权
标题翻译：燃料电池
公开(公告)号：US20110275001A1
公开(公告)日：2011-11-10
申请号：US13165323
申请日：2011-06-21
申请人： Hisashi Chigusa , Katsumi Ichikawa , Hitoshi Koda , Akiko Fujisawa , Shinichi Onodera , Hiroaki Wakamatsu , Shinichi Kanbayashi , Naoyuki Takazawa
发明人： Hisashi Chigusa , Katsumi Ichikawa , Hitoshi Koda , Akiko Fujisawa , Shinichi Onodera , Hiroaki Wakamatsu , Shinichi Kanbayashi , Naoyuki Takazawa
IPC分类号： H01M8/24
CPC分类号： H01M8/1004 , H01M4/8626 , H01M8/1011 , H01M8/241 , H01M8/242 , H01M8/249 , Y02E60/523
摘要： According to one embodiment, a fuel cell includes a membrane electrode assembly including a plurality of unit cells which are composed of an electrolyte membrane, an anode including anode catalyst layers arranged at intervals on one of surfaces of the electrolyte membrane, and anode gas diffusion layers stacked on the anode catalyst layers, and a cathode including cathode catalyst layers arranged at intervals on the other surface of the electrolyte membrane and opposed to the anode catalyst layers, respectively, and cathode gas diffusion layers stacked on the cathode catalyst layers, wherein a thickness of at least one of the anode catalyst layer and the cathode catalyst layer of one of the unit cells, which neighbor each other, gradually decreases toward the other of the unit cells.
摘要翻译：根据一个实施例，燃料电池包括膜电极组件，该膜电极组件包括由电解质膜组成的多个单元电池，包括阳极催化剂层的阳极，阳极催化剂层间隔布置在电解质膜的一个表面上，阳极气体扩散层堆叠在阳极催化剂层上的阴极催化剂层，以及阴极催化剂层，阴极催化剂层分别间隔设置在电解质膜的另一个表面上，并分别与阳极催化剂层相对，阴极气体扩散层层叠在阴极催化剂层上，的彼此相邻的一个单位电池的阳极催化剂层和阴极催化剂层中的至少一个朝着另一个单元电池逐渐减小。

6. 发明授权

US5589262A Perpendicular magnetic recording medium having a soft magnetic underlayer with a stripe magnetic domain structure 失效
标题翻译：具有带磁畴结构的软磁性底层的垂直磁记录介质
公开(公告)号：US5589262A
公开(公告)日：1996-12-31
申请号：US286951
申请日：1994-08-08
申请人： Katsumi Kiuchi , Hiroaki Wakamatsu , Fumitake Suzuki , Takao Koshikawa
发明人： Katsumi Kiuchi , Hiroaki Wakamatsu , Fumitake Suzuki , Takao Koshikawa
IPC分类号： G11B5/00 , G11B5/012 , G11B5/64 , G11B5/66 , G11B5/667 , G11B5/73 , G11B5/738 , G11B5/74 , G11B5/84 , G11B5/85
CPC分类号： B82Y10/00 , G11B5/00 , G11B5/66 , G11B5/74 , G11B5/743 , G11B2005/0013 , G11B2005/0029 , G11B5/012 , Y10S428/90 , Y10T428/265
摘要： A perpendicular magnetic recording medium for use on a magnetic recording/reproducing apparatus which has a magnetic head for recording/reproduction includes a substrate, a magnetic recording layer having a perpendicular magnetic anisotropy, and a soft magnetic under layer interposed between the substrate and the magnetic recording layer. The soft magnetic under layer includes a mechanism for for suppressing motion of the domain walls of the soft magnetic under layer at least with respect to an external magnetic field which is smaller than a stray magnetic field in a vicinity of the magnetic head within the magnetic recording/reproducing apparatus.
摘要翻译：用于具有用于记录/再现的磁头的磁记录/再现装置的垂直磁记录介质包括基板，具有垂直磁各向异性的磁记录层和介于基板和磁体之间的软磁下层记录层。软磁下层包括用于至少相对于比磁记录中的磁头附近的杂散磁场小的外部磁场来抑制软磁下层的畴壁的运动的机构 /再现装置。

7. 发明授权

US6038093A Magnetic recording/reproducing apparatus with a current supplying circuit for demagnetizing residual magnetization remaining at an end of a magnetic pole 失效
标题翻译：具有电流供给电路的磁记录/再现装置，用于使残留在磁极末端的残余磁化消磁
公开(公告)号：US6038093A
公开(公告)日：2000-03-14
申请号：US880518
申请日：1997-06-24
申请人： Noboru Takada , Chie Takeda , Hiroaki Wakamatsu , Masayoshi Shinohara , Kenji Sato , Kenichi Aoshima
发明人： Noboru Takada , Chie Takeda , Hiroaki Wakamatsu , Masayoshi Shinohara , Kenji Sato , Kenichi Aoshima
IPC分类号： G11B5/09 , G11B5/00 , G11B5/02 , G11B5/127 , G11B5/455 , G11B19/04 , G11B20/10 , G11B27/36 , G11B5/465 , H01F13/00
CPC分类号： G11B5/455 , G11B20/10009 , G11B5/09 , G11B5/1278 , G11B19/04 , G11B2005/0008 , G11B2005/0029 , G11B27/36 , G11B5/012
摘要： There is provided a magnetic recording/reproducing apparatus which has an improved reliability for a reproduced signal by eliminating a deformation in a reproduced signal waveform due to a residual magnetization generated in a magnetic head. The magnetic recording/reproducing apparatus has a magnetic recording medium including a magnetic film to which information is magnetically recorded and a thin-film magnetic head including a magnetic pole and a coil provided around the magnetic pole. A current supplying circuit supplies a current to the coil so that a magnetic state of the magnetic pole is stabilized. The current is supplied to the coil after a recording operation has been completed by the thin-film magnetic head. The current may demagnetize the magnetic pole of the magnetic head, or stabilize the magnetic state of the magnetic pole.
摘要翻译：提供了一种磁记录/再现装置，其通过消除由于在磁头中产生的剩余磁化引起的再现信号波形中的变形，对再现信号具有改进的可靠性。磁记录/再现装置具有磁记录介质，该磁记录介质包括磁信息被磁记录的磁膜和包括设在磁极周围的磁极和线圈的薄膜磁头。电流供给电路向线圈供给电流，使得磁极的磁状态稳定。在通过薄膜磁头完成记录操作之后，电流被提供给线圈。电流可以使磁头的磁极退磁，或使磁极的磁状态稳定。

8. 发明授权

US6011666A Disk unit and portable electronic equipment 失效
标题翻译：磁盘单元和便携式电子设备
公开(公告)号：US6011666A
公开(公告)日：2000-01-04
申请号：US874163
申请日：1997-06-13
申请人： Hiroaki Wakamatsu
发明人： Hiroaki Wakamatsu
IPC分类号： G11B19/04 , G11B19/28 , G11B21/21 , G11B33/14
CPC分类号： G11B21/21 , G11B19/04 , G11B19/28 , G11B33/14
摘要： A disk unit includes a mechanism which rotates a disk, a head which writes data to and/or reads data from the disk, a detection mechanism which detects an operating environment of the disk unit and outputs a detection signal, and a control unit which controls a floating distance of the head from the disk to more than a predetermined value by controlling the rotation mechanism and varying a rotational speed of the disk from a rated rotational speed if the detection signal falls outside a first range.
摘要翻译：磁盘单元包括使磁盘旋转的机构，向磁盘写入数据和/或从磁盘读取数据的磁头，检测磁盘单元的操作环境并输出检测信号的检测机构，以及控制单元，如果检测信号超出第一范围，则通过控制旋转机构并将盘的旋转速度从额定转速改变而将磁头从磁盘浮动的距离大于预定值。

9. 发明授权

US5047297A Magnetic recording medium and manufacturing method thereof 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US5047297A
公开(公告)日：1991-09-10
申请号：US219696
申请日：1988-07-07
申请人： Hiroaki Wakamatsu , Yoshihiro Mitobe , Katsumi Kiuchi
发明人： Hiroaki Wakamatsu , Yoshihiro Mitobe , Katsumi Kiuchi
IPC分类号： G11B5/66 , G11B5/64 , G11B5/73 , G11B5/738
CPC分类号： G11B5/7325 , G11B5/64 , Y10S428/90 , Y10T428/12465 , Y10T428/12854
摘要： A magnetic recording medium, comprising Cr base layer containing up to about 25 atom % of nitrogen, preferably 5 to 15 atom %, and a magnetic film of Co alloy such as Co-Ni or Co-Ni-Cr alloy material deposited thereon, shows a clear improvement over that using a pure Cr base layer without nitrogen content in medium noise level and S/N ratio. In case of about 10 atom % nitrogen content in the base layer, the medium noise level is reduced by half and the S/N ratio is improved by 6 to 9 dB, while the other magnetic characteristics such as coercivity Hc, residual magnetization Br, and squareness ratio Sq are remaining the same.

10. 发明授权

US5914168A Magnetic recording medium and magnetic disc device 失效
标题翻译：磁记录介质和磁盘装置
公开(公告)号：US5914168A
公开(公告)日：1999-06-22
申请号：US517757
申请日：1995-08-22
申请人： Hiroaki Wakamatsu , Katsuhide Sone , Kiyoshi Yamaguchi , Yoshihiro Mitobe , Yoshito Kitamoto
发明人： Hiroaki Wakamatsu , Katsuhide Sone , Kiyoshi Yamaguchi , Yoshihiro Mitobe , Yoshito Kitamoto
IPC分类号： G11B5/82 , G11B5/56 , G11B5/60 , G11B5/64 , G11B5/65 , G11B5/72 , G11B5/73 , G11B5/738 , G11B21/21 , G11B5/66
CPC分类号： G11B5/7325 , G11B5/64 , G11B5/72 , Y10S428/90 , Y10T428/24355 , Y10T428/265
摘要： A magnetic recording medium able to cope with low flying height of the magnetic head in a CSS system and having fine surface roughness, wherein (1) a metal layer having columnar protrusions formed by the filming of Ti or the like or (2) a resin layer or glass resin layer having irregularly distributed through-holes are provided on the substrate of a magnetic recording medium to impart roughness (texture).
摘要翻译：一种磁记录介质，其能够应对CSS系统中磁头的飞行高度低并且具有良好的表面粗糙度，其中（1）具有通过Ti等的成膜形成的柱状突起的金属层或（2）树脂在磁记录介质的基板上设置具有不规则分布的通孔的层或玻璃树脂层，以赋予粗糙度（纹理）。

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