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194 条记录 (耗时 0.033 秒)

    Magnetic head and disk drive provided with the same
    82.
    发明授权
    Magnetic head and disk drive provided with the same 有权
    提供磁头和磁盘驱动器

    公开(公告)号：US08064162B2

    公开(公告)日：2011-11-22

    申请号：US12759607

    申请日：2010-04-13

    申请人： Takuya Matsumoto ,  Tomoko Taguchi

    发明人： Takuya Matsumoto ,  Tomoko Taguchi

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3116 ,  G11B5/1278

    摘要： According to an embodiment, a magnetic head for perpendicular recording, includes a slider including a facing surface opposed to a recording medium, and a head portion on the slider and configured to perform information processing for the recording medium. The head portion includes a main pole configured to apply a perpendicular recording magnetic field to the recording medium, a recording coil configured to excite the main pole, a write shield pole opposing the main pole across a write gap, side shields arranged individually on opposite sides of the main pole in a track width direction and magnetically isolated from the main pole, and low-flux-density layers formed of a material having a saturation magnetic flux density lower than that of the main pole, located between the main pole and the side shields, and configured to regulate magnetic fluxes flowing from the main pole to the side shields.

    摘要翻译： 根据一个实施例，一种用于垂直记录的磁头包括一个滑块，它包括一个与记录介质相对的面对表面，以及一个位于滑块上的头部，用于对记录介质执行信息处理。 头部包括被配置为向记录介质施加垂直记录磁场的主极，被配置为激励主极的记录线圈，跨越写间隙的与主极相对的写屏蔽极，分别布置在相对侧的侧屏蔽 的主磁极与磁极隔离的磁极宽度方向上的主磁极和由主极和主体之间的主磁极的饱和磁通密度低的材料形成的低通量密度层 屏蔽，并且被配置为调节从主极流到侧屏的磁通量。

    THERMAL-ASSISTED-MAGNETIC-RECORDING HEAD AND MAGNETIC RECORDING SYSTEM USING THE THERMAL-ASSISTED-MAGNETIC-RECORING HEAD
    84.
    发明申请
    THERMAL-ASSISTED-MAGNETIC-RECORDING HEAD AND MAGNETIC RECORDING SYSTEM USING THE THERMAL-ASSISTED-MAGNETIC-RECORING HEAD 有权
    使用热辅助记录头的热辅助磁记录头和磁记录系统

    公开(公告)号：US20110090770A1

    公开(公告)日：2011-04-21

    申请号：US12903276

    申请日：2010-10-13

    申请人： Yasuhiko IWANABE ,  Takuya Matsumoto ,  Junichiro Shimizu ,  Harukazu Miyamoto

    发明人： Yasuhiko IWANABE ,  Takuya Matsumoto ,  Junichiro Shimizu ,  Harukazu Miyamoto

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

    摘要： Provided is a thermal-assisted-magnetic-recording head capable of directing, to a magnetic recording medium, light in which the spot size is reduced to submicron order with high total optical propagation efficiency. A light coupling unit that guides light emitted from the light source into a magnetic head and a high-refractive-index core that couples with the light guided by the light coupling unit to lead the light to an air bearing surface are arranged in the magnetic head. The light coupling unit includes a plurality of thin-film-like cores that are separated from each other by a clad material. An upper part of the high-refractive-index core is placed between two thin-film-like cores.

    摘要翻译： 提供了一种热辅助磁记录头，其能够将光斑尺寸减小到亚微米级的高的总光传播效率的光记录介质。 将从光源发射的光引导到磁头中的光耦合单元和与由光耦合单元引导的光耦合以将光引导到空气轴承表面的高折射率芯布置在磁头中 。 光耦合单元包括通过包层材料彼此分离的多个薄膜状芯。 高折射率芯的上部放置在两个薄膜状芯之间。

    Maleimide derivative
    85.
    发明授权
    Maleimide derivative 失效
    马来酰亚胺衍生物

    公开(公告)号：US07897787B2

    公开(公告)日：2011-03-01

    申请号：US12066323

    申请日：2006-09-13

    申请人： Takuya Matsumoto ,  Takuji Shoda ,  Yasuteru Urano ,  Tetsuo Nagano

    发明人： Takuya Matsumoto ,  Takuji Shoda ,  Yasuteru Urano ,  Tetsuo Nagano

    IPC分类号： C07F5/02

    CPC分类号： C07F5/022 ,  C09B23/04 ,  C09B57/10 ,  G01N21/6428 ,  G01N2021/6439

    摘要： A compound represented by the following general formula (I): [wherein R1 and R2 independently represent hydrogen atom, or a group represented by the following formula (A): (wherein X1 and X2 represent hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom), provided that R1 and R2 do not simultaneously represent hydrogen atom; R3 and R6 represent an alkyl group; R4 and R7 represent hydrogen atom, an alkyl group, carboxy group, an alkoxycarbonyl group, or sulfo group; and R5 and R8 represents an alkyl group, an aryl group, an alkoxycarbonyl group, a vinyl group, a thienyl group, or a pyrrolyl group], or a salt thereof, which is usable for efficient screening for a chemical substance having applicability as a catalyst of the reaction of Michael addition.

    摘要翻译： 由以下通式（I）表示的化合物：[其中R 1和R 2独立地表示氢原子或由下式（A）表示的基团：（其中X 1和X 2表示氢原子，烷基，烷氧基 或卤素原子），条件是R 1和R 2不同时表示氢原子; R3和R6表示烷基; R4和R7表示氢原子，烷基，羧基，烷氧基羰基或磺基; R5和R8表示烷基，芳基，烷氧基羰基，乙烯基，噻吩基或吡咯基]或其盐，其可用于有效筛选具有适用性的化学物质作为 催化剂的迈克尔加成反应。

    OPTICAL MODULE
    88.
    发明申请
    OPTICAL MODULE 失效
    光学模块

    公开(公告)号：US20100220957A1

    公开(公告)日：2010-09-02

    申请号：US12663711

    申请日：2008-06-26

    申请人： Nobuyuki Asahi ,  Makoto Nisimura ,  Nobuyuki Miyagawa ,  Hiroyuki Yagyu ,  Yuichi Uchida ,  Yutaka Kinugasa ,  Tadahiro Yamaji ,  Takuya Matsumoto

    发明人： Nobuyuki Asahi ,  Makoto Nisimura ,  Nobuyuki Miyagawa ,  Hiroyuki Yagyu ,  Yuichi Uchida ,  Yutaka Kinugasa ,  Tadahiro Yamaji ,  Takuya Matsumoto

    IPC分类号： G02B6/42

    CPC分类号： G02B6/423 ,  G02B6/4239 ,  G02B6/43

    摘要： An optical module includes an emitter-side mounting substrate, a receiver-side mounting substrate and an external waveguide substrate. The mounting substrate is provided with a waveguide having a core and a pair of fitting recesses. The external waveguide substrate is provided with an external waveguide having a core, a pair of fitting tabs and a lap joint portion. As the fitting tabs are fitted into the respective fitting recesses, the mounting substrate and the external waveguide substrate are joined together, the two cores are aligned with each other, and the lap joint portion is positioned to overlap the mounting substrate.

    摘要翻译： 光学模块包括发射极侧安装基板，接收器侧安装基板和外部波导基板。 安装基板设置有具有芯部和一对嵌合凹部的波导管。 外部波导基板设置有具有芯部，一对配合突片和搭接部的外部波导。 由于嵌合片安装在各嵌合凹部中，所以安装基板和外部波导基板接合在一起，两芯彼此对准，搭接部分与安装基板重合。

    Optical attenuator
    89.
    发明授权
    Optical attenuator 失效
    光衰减器

    公开(公告)号：US07580593B2

    公开(公告)日：2009-08-25

    申请号：US12278428

    申请日：2007-03-22

    申请人： Yuichi Uchida ,  Nobuyuki Miyagawa ,  Tadahiro Yamaji ,  Takuya Matsumoto

    发明人： Yuichi Uchida ,  Nobuyuki Miyagawa ,  Tadahiro Yamaji ,  Takuya Matsumoto

    IPC分类号： G02F1/035 ,  G02F1/295 ,  G02B6/26 ,  G02B6/42 ,  G02B6/10 ,  G02B6/00

    CPC分类号： G02F1/0147 ,  G02F1/011 ,  G02F2201/16 ,  G02F2203/06 ,  G02F2203/48

    摘要： In an optical attenuator, there are a first optical waveguide 3A connected to an input optical waveguide 1, a second optical waveguide 3B connected to an output optical waveguide 2 and a connecting optical waveguide 4, which are connected with each other in series. A first recess 13A and a second recess 13B are formed in a positional relationship of opposite directions with respect to an axial direction of an optic axis of light that is inputted through the input optical waveguide 1, transmitted through the first optical waveguide 3A, the connecting optical waveguide 4 and the second optical waveguide 3B and outputted from the output optical waveguide 2. Further, a first optical attenuating heater 6A and a second optical attenuating heater 6B are arranged so as to produce opposite refractive index distributions in the axial direction of the optic axis of the light that is inputted through the input optical waveguide 1, transmitted through the first optical waveguide 3A, the connecting optical waveguide 4 and the second optical waveguide 3B and outputted from the output optical waveguide 2, in the first optical waveguide 3A and the second optical waveguide 3B. The optical attenuator capable of reducing a polarization dependent loss for a desired optical attenuation is provided without utilizing an interference of lights.

    摘要翻译： 在光衰减器中，存在与输入光波导1连接的第一光波导3A，与输出光波导2连接的第二光波导3B和连接光波导4，它们彼此串联连接。 第一凹部13A和第二凹部13B以相对于通过输入光波导1输入的光的光轴的轴向的相反方向的位置关系形成，透过第一光波导3A，连接 光波导4和第二光波导3B，并从输出光波导2输出。此外，第一光衰减加热器6A和第二光衰减加热器6B布置成在光学器件的轴向上产生相反的折射率分布 通过输入光波导1输入的光的第一光波导3A和第二光波导3A中输出的第一光波导3A，连接光波导4和第二光波导3B并从输出光波导2输出的光 第二光波导3B。 提供能够减少所需光衰减的偏振相关损耗的光衰减器，而不利用光的干扰。