公开(公告)号：US20090303629A1

公开(公告)日：2009-12-10

申请号：US12514256

申请日：2007-11-07

申请人： Ikuo Nakano ,  Yoshiteru Murakami ,  Shigemi Maeda

发明人： Ikuo Nakano ,  Yoshiteru Murakami ,  Shigemi Maeda

IPC分类号： G11B27/36

CPC分类号： G11B5/02 ,  G11B11/10536 ,  G11B2005/001 ,  G11B2005/0021

摘要： A magnetic recording/reproducing apparatus 100 includes: a magnetic head 1; a magnetic recording medium 2; a spindle 3 and a spindle motor 4; a suspension arm 5; a voice coil motor 6; and a control unit 7. The control unit 7 has: a motor driver 8; a head amplifier 9; a read/write channel 10; a laser driver 11; and a controller 12. The controller 12 has: a preliminary recording unit 13; a judgment unit 14; an extraction unit 15; a drive condition determining unit 16; and a preliminary recording terminating unit 17. Based on a reproduction signal evaluation value obtained using these units and a predetermined reference value, a drive condition is determined which is suitable for recording onto the magnetic recording medium 2.

摘要翻译： 磁记录/再现装置100包括：磁头1; 磁记录介质2; 主轴3和主轴电动机4; 悬架臂5; 音圈电机6; 和控制单元7.控制单元7具有：马达驱动器8; 头放大器9; 读/写通道10; 激光驱动器11; 和控制器12.控制器12具有：初步记录单元13; 判断单元14; 提取单元15; 驱动条件确定单元16; 和预备记录终止单元17.基于使用这些单元获得的再现信号评估值和预定参考值，确定适合于记录在磁记录介质2上的驱动条件。

公开(公告)号：US20090296258A1

公开(公告)日：2009-12-03

申请号：US12067974

申请日：2006-09-25

申请人： Shintaro Miyanishi ,  Yasushi Ogimoto ,  Yoshiteru Murakami ,  Kunio Kojima

发明人： Shintaro Miyanishi ,  Yasushi Ogimoto ,  Yoshiteru Murakami ,  Kunio Kojima

IPC分类号： G11B21/02 ,  G01R29/08 ,  G11B5/127

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G01R29/12 ,  G01R33/09 ,  G11B5/3993 ,  H01F10/20 ,  H01F10/24

摘要： An electromagnetic field detecting element 10 includes a lamination of three insulation layers 2, 3, and 4. The dielectric breakdown strength of the insulation layer 3 is greater than the dielectric breakdown strengths of insulation layers 2 and 4. The three insulation layers 2, 3, and 4 are disposed between a pair of electrodes 5 and 6. Boundaries 7 and 8 on both ends of an overlapping region of the opposing surfaces 5a and 6a in a Z direction are apart from the insulation layer 3 by thicknesses t1 and t3 of the insulation layers 2 and 4, respectively. Between the pair of electrodes 5 and 6, ballistic current paths interposing therebetween the insulation layer 3 are formed by applying, between the pair of electrodes 5 and 6, an electric field having a magnitude which causes dielectric breakdown in the insulation layers 2 and 4 while causing no dielectric breakdown in the insulation layer 3. Thus, it is possible to perform at a room temperature a highly efficient electromagnetic field detection utilizing AB effect or AC effect.

摘要翻译： 电磁场检测元件10包括三个绝缘层2,3和4的叠层。绝缘层3的绝缘击穿强度大于绝缘层2和4的绝缘击穿强度。三个绝缘层2,3 和4设置在一对电极5和6之间。相对表面5a和6a在Z方向上的重叠区域的两端上的边界7和8与绝缘层3分离，厚度为t1和t3 绝缘层2和4。 在一对电极5和6之间，通过在一对电极5和6之间施加具有导致绝缘层2和4中的电介质击穿的大小的电场而形成绝缘层3之间插入的防弹电流路径，同时 不会在绝缘层3中产生介电击穿。因此，可以在室温下进行利用AB效应或AC效应的高效电磁场检测。

公开(公告)号：US20090279208A1

公开(公告)日：2009-11-12

申请号：US12306484

申请日：2007-07-03

申请人： Tomoki Ono ,  Shintaro Miyanishi ,  Kousuke Innami ,  Yoshiteru Murakami

发明人： Tomoki Ono ,  Shintaro Miyanishi ,  Kousuke Innami ,  Yoshiteru Murakami

IPC分类号： G11B5/60

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/102 ,  G11B7/1387 ,  G11B11/10534 ,  G11B11/1058 ,  G11B2005/0005 ,  G11B2005/0021

摘要： An opening (3) is formed on a surface of a metal film (2), a plurality of axes (4, 5, 6, 7) cross each other substantially perpendicularly at the opening (3), a plurality of periodic grooves (8, 9, 10, 11) are provided for respective axes (4, 5, 6, 7), and each of the periodic grooves (8, 9, 10, 11) includes a plurality of grooves (8-n, 9-n, 10-n, and 11-n) substantially perpendicular to the axis for which each periodic groove is provided, and the periodic grooves (8, 9, 10, 11) is positioned point-symmetrically with respect to the opening (3).

摘要翻译： 在金属膜（2）的表面上形成开口（3），在开口（3）处大致垂直地交叉的多个轴线（4,5,6,7），多个周期性凹槽（8） ，9,10,11）设置用于各个轴（4,5,6,7），并且每个周期性凹槽（8,9,10,11）包括多个凹槽（8-n，9-n） ，10-n和11-n），周期性槽（8,9,10,11）相对于开口（3）位于对称的位置。

公开(公告)号：US20090207702A1

公开(公告)日：2009-08-20

申请号：US12322112

申请日：2009-01-29

申请人： Junichi Sato ,  Yoshiteru Murakami ,  Hideki Eto

发明人： Junichi Sato ,  Yoshiteru Murakami ,  Hideki Eto

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B2005/0005 ,  G11B2005/0021

摘要： An electromagnetic field generating element includes a conductor that generates near-field light when irradiated with light and generates a magnetic field when a current flows through the conductor. The electromagnetic field generating element further includes a soft magnetic body provided at a position along a dimension of the conductor, the dimension being perpendicular to (i) a direction in which the conductor faces a magnetic recording medium to which the near-field light and the magnetic field are applied and to (ii) a direction in which the current flows. The present invention thus allows for provision of an electromagnetic field generating element that allows for reduction in its power consumption in optically assisted magnetic read/write using near-field light.

摘要翻译： 电磁场产生元件包括当用光照射时产生近场光的导体，并且当电流流过导体时产生磁场。 电磁场产生元件还包括设置在沿着导体的尺寸的位置处的软磁体，其尺寸垂直于（i）导体面向磁记录介质的方向，近场光和 施加磁场并且（ii）电流流动的方向。 因此，本发明允许提供一种电磁场产生元件，其允许在使用近场光的光辅助磁读/写中降低其功耗。

公开(公告)号：US08848306B2

公开(公告)日：2014-09-30

申请号：US13586984

申请日：2012-08-16

申请人： Toshihiko Sakai ,  Yoshiteru Murakami

发明人： Toshihiko Sakai ,  Yoshiteru Murakami

IPC分类号： G11B5/02 ,  G11B21/02 ,  G11B5/012 ,  G11B5/09 ,  G11B5/00

CPC分类号： G11B5/09 ,  G11B5/012 ,  G11B2005/0005

摘要： In information recording areas of a disc-shaped magnetic recording medium, recording columns adjacent to each other relative to a radial direction are formed to partially overlap with each other in the radial direction. A first recording and a second recording are selectively performed. In the first recording, a first recording column, a second recording column (the outer adjacent recording column of the first recording column) and a third recording column (the outer adjacent recording column of the second recording column) are formed so that the radial positions of the inner and outer circumferential edges of the first recording column, those of a second recording column, and those of a third recording column satisfy R1in

摘要翻译： 在盘形磁记录介质的信息记录区域中，相对于径向相邻的记录柱形成为在径向上彼此部分重叠。 选择性地执行第一记录和第二记录。 在第一记录中，形成第一记录列，第二记录列（第一记录列的外相邻记录列）和第三记录列（第二记录列的外相邻记录列），使得径向位置 第一记录列的内周边缘和第二记录列的外圆周边缘和第三记录列的内圆周边缘和外圆周边缘满足R1in

公开(公告)号：US08582412B2

公开(公告)日：2013-11-12

申请号：US13456089

申请日：2012-04-25

申请人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

发明人： Go Mori ,  Hirohisa Yamada ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

IPC分类号： G11B7/00

CPC分类号： G11B20/18 ,  G11B7/00736 ,  G11B7/24065 ,  G11B7/252 ,  G11B7/258 ,  G11B20/10009 ,  G11B20/10046 ,  G11B20/1012 ,  G11B20/10481 ,  G11B20/1217 ,  G11B20/1426 ,  G11B2220/2541 ,  G11B2220/2579

摘要： This invention allows super-resolution reproduction with which a better bER value is attainable, when information is recorded by a random pattern including a mark length not longer than a resolution limit, by use of a highly versatile signal decoding method.Information is recorded as marks and spaces coded by RLL(1,7) modulation, which each of the marks and spaces have one of a plurality of lengths, and 2T marks and 2T spaces of the marks and spaces being formed are shorter than 0.12 μm. An information recording layer (20) includes a reproduction film (21) and a reflective film (22) which are provided in this order from a side from which reproducing light is incident, which reproduction film is made of (i) zinc oxide, (ii) strontium titanate, (iii) titanium oxide, (iv) cerium oxide, or (v) a material including at least one of the (i) through (iv), and which reflective film is made of tantalum or titanium.

公开(公告)号：US08508875B2

公开(公告)日：2013-08-13

申请号：US13360332

申请日：2012-01-27

申请人： Ikuo Nakano ,  Yoshiteru Murakami ,  Shigemi Maeda

发明人： Ikuo Nakano ,  Yoshiteru Murakami ,  Shigemi Maeda

IPC分类号： G11B27/36 ,  G11B5/02

CPC分类号： G11B5/02 ,  G11B11/10536 ,  G11B2005/001 ,  G11B2005/0021

摘要： A magnetic recording/reproducing apparatus 100 includes: a magnetic head 1; a magnetic recording medium 2; a spindle 3 and a spindle motor 4; a suspension arm 5; a voice coil motor 6; and a control unit 7. The control unit 7 has: a motor driver 8; a head amplifier 9; a read/write channel 10; a laser driver 11; and a controller 12. The controller 12 has: a preliminary recording unit 13; a judgment unit 14; an extraction unit 15; a drive condition determining unit 16; and a preliminary recording terminating unit 17. Based on a reproduction signal evaluation value obtained using these units and a predetermined reference value, a drive condition is determined which is suitable for recording onto the magnetic recording medium 2.

摘要翻译： 磁记录/再现装置100包括：磁头1; 磁记录介质2; 主轴3和主轴电动机4; 悬架臂5; 音圈电机6; 和控制单元7.控制单元7具有：马达驱动器8; 头放大器9; 读/写通道10; 激光驱动器11; 和控制器12.控制器12具有：初步记录单元13; 判断单元14; 提取单元15; 驱动条件确定单元16; 和预备记录终止单元17.基于使用这些单元获得的再现信号评估值和预定参考值，确定适合于记录在磁记录介质2上的驱动条件。

公开(公告)号：US08467140B2

公开(公告)日：2013-06-18

申请号：US12802622

申请日：2010-06-10

申请人： Toshihiko Sakai ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Yoshiteru Murakami

发明人： Toshihiko Sakai ,  Masaki Yamamoto ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Yoshiteru Murakami

IPC分类号： G11B27/36 ,  G11B5/09

CPC分类号： G11B5/012 ,  B82Y10/00 ,  G11B5/746 ,  G11B19/048 ,  G11B20/10009 ,  G11B20/10222 ,  G11B20/10388 ,  G11B20/10398 ,  G11B20/1217 ,  G11B2005/0013 ,  G11B2005/0024 ,  G11B2020/1281 ,  G11B2020/1298 ,  G11B2220/252

摘要： A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code. The program code includes a test module, responsive to a test write start signal, for repeating writing and reading test information by the magnetic writing and reading elements and calculating a quality index value representing quality of writing of the reproduced test information with the setting information changed, and a write module for selecting setting information with which the quality index value satisfies a predetermined condition, and writing the selected information in the memory.

摘要翻译： 磁记录装置包括：磁记录介质，具有记录表面，多个彼此磁隔离的磁记录单元布置在该记录表面上; 磁性写入元件根据设定信息将信息记录到磁记录单元; 磁读取元件再现记录在磁记录单元中的信息; 存储用于写入的设置信息的存储器; 以及用于执行程序代码的处理器。 程序代码包括测试模块，响应于测试写入开始信号，用于通过磁性写入和读取元件重复写入和读取测试信息，并且计算表示改变的设置信息的再现的测试信息的写入质量的质量指标值 以及写入模块，用于选择质量指标值满足预定条件的设置信息，并将所选择的信息写入存储器。

公开(公告)号：US08422345B2

公开(公告)日：2013-04-16

申请号：US12814168

申请日：2010-06-11

申请人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

发明人： Masaki Yamamoto ,  Hirohisa Yamada ,  Yasuhiro Harada ,  Go Mori ,  Hideharu Tajima ,  Shigemi Maeda ,  Yoshiteru Murakami

IPC分类号： G11B7/00 ,  G11B7/24

CPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/005 ,  G11B7/08511 ,  G11B7/12 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/24 ,  G11B7/24038 ,  G11B19/125 ,  G11B19/128 ,  G11B2007/0013

摘要： In an optical information storage medium reproduction apparatus (10) for reproducing an optical information storage medium including a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, reproduction laser power for reading an information recording layer closest to a reproduction-laser-incident surface of the optical information storage medium is set to be lower than reproduction laser power for reading an information recording layer farthest from the reproduction-laser-incident surface but not lower than minimum reproduction laser power that satisfies a reproduction signal characteristic that the optical information storage medium reproduction apparatus (10) requires. With the arrangement, it is possible to prevent that the information recording layer closest to the reproduction-laser-incident surface is irradiated wrongly with reproduction laser having high reproduction laser power, thereby making it possible to obtain successful reproduction quality. That is, it is possible to realize the optical information storage medium reproduction apparatus (10) that can set optimum reproduction laser power and perform stable super resolution reproduction.

摘要翻译： 在用于再现包括多个信息记录层的光信息存储介质的光学信息存储介质再现设备（10）中，每个信息记录层包括长度短于光学系统分辨率极限的记录标记，用于读取信息记录层的再现激光功率 最靠近光学信息存储介质的再现激光入射表面被设置为低于用于读取距再生激光入射面最远的信息记录层的再生激光功率，但不低于满足 光信息存储介质再生装置（10）要求的再现信号特性。 通过这种布置，可以防止最接近再现激光入射表面的信息记录层与具有高再现激光功率的再现激光器错误地照射，从而可以获得成功的再现质量。 也就是说，可以实现能够设置最佳再现激光功率并且执行稳定的超分辨率再现的光学信息存储介质再现装置（10）。

公开(公告)号：US20130027780A1

公开(公告)日：2013-01-31

申请号：US13639235

申请日：2011-02-02

申请人： Noboru Iwata ,  Teruhisa Kotani ,  Tazuko Kitazawa ,  Yoshiteru Murakami

发明人： Noboru Iwata ,  Teruhisa Kotani ,  Tazuko Kitazawa ,  Yoshiteru Murakami

IPC分类号： G02B5/00 ,  B29D11/00

CPC分类号： G02B1/118

摘要： An antireflective structure having a higher antireflective effect compared with those of conventional antireflective structures is produced by a simple process. The antireflective structure (10) includes a plurality of concavities (2a) each having a plurality of convexities (1a) thereon, and a pitch between the plurality of convexities (1a) and a pitch between the plurality of concavities (2a) are smaller than a wavelength of light incident to the antireflective structure (10).

摘要翻译： 通过简单的工艺制造与常规抗反射结构相比具有较高抗反射效果的抗反射结构。 抗反射结构（10）包括在其上具有多个凸部（1a）的多个凹部（2a），多个凸部（1a）之间的间距和多个凹部（2a）之间的间距小于 入射到抗反射结构（10）的光的波长。