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    Magneto-optical recording medium having plasma-polymerized protective layers
    42.
    发明授权
    Magneto-optical recording medium having plasma-polymerized protective layers 失效
    具有等离子体聚合保护层的磁光记录介质

    公开(公告)号：US4737408A

    公开(公告)日：1988-04-12

    申请号：US897087

    申请日：1986-08-18

    申请人： Tsuneo Kuwahara ,  Masatoshi Nakayama ,  Hideki Hirata

    发明人： Tsuneo Kuwahara ,  Masatoshi Nakayama ,  Hideki Hirata

    IPC分类号： G11B7/243 ,  G11B7/254 ,  G11B11/105 ,  G11B7/24

    CPC分类号： G11B7/252 ,  G11B11/10582 ,  G11B7/254 ,  G11B7/2575 ,  G11B2007/24306 ,  G11B7/2533 ,  Y10S428/90 ,  Y10T428/264 ,  Y10T428/265 ,  Y10T428/31692 ,  Y10T428/31855

    摘要： In a magneto-optical recording medium comprising a perpendicular magnetizable thin film layer formed from an amorphous rare earth metal-transition metal alloy on a substrate with or without an intermediate layer, and a first protective layer formed from a plasma-polymerized film on the magnetizable layer; a second protective layer is formed on the first protective layer by curing a radiation-curable compound coating and/or an undercoat layer of a plasma-polymerized film is formed on the substrate in order to improve the moisture proofness of the magnetic layer. The substrate may be plasma treated to improve adherence. Covering the overall outside surface of the medium with a cured film of a radiation-curable compound ensures best shelf stability.

    摘要翻译： 在包括在具有或不具有中间层的基板上由无定形稀土金属 - 过渡金属合金形成的垂直可磁化薄膜层的磁光记录介质中，以及由可磁化的等离子体聚合膜形成的第一保护层 层; 通过固化可辐射固化的化合物涂层在第一保护层上形成第二保护层和/或等离子体聚合膜的底涂层，以提高磁性层的防潮性。 可以对衬底进行等离子体处理以改善粘附性。 用可辐射固化化合物的固化膜覆盖介质的整个外表面确保了最佳的储存稳定性。

    Magnetic thin film
    43.
    发明授权
    Magnetic thin film 失效
    磁性薄膜

    公开(公告)号：US4618542A

    公开(公告)日：1986-10-21

    申请号：US673987

    申请日：1984-11-21

    申请人： Haruyuki Morita ,  Jiro Yoshinari ,  Masatoshi Nakayama

    发明人： Haruyuki Morita ,  Jiro Yoshinari ,  Masatoshi Nakayama

    IPC分类号： G11B5/85 ,  H01F41/20 ,  H01F41/22 ,  G11B5/64

    CPC分类号： G11B5/85 ,  H01F41/20 ,  H01F41/22 ,  Y10S428/90

    摘要： A magnetic thin film comprised of at least one, usually two magnetic metals selected from iron, nickel, and cobalt is vapor phase grown on a substrate, for example, polyimide film by introducing chemical compounds of the metals in vapor form, a reducing gas, and optionally, an oxidizing gas, into a vacuum chamber where the substrate is placed and preferably heated to a temperature of at least 100.degree. C., and subjecting the reaction gases to plasma excitation, thereby achieving the vapor phase growth of the magnetic thin film on the substrate.

    摘要翻译： 由选自铁，镍和钴中的至少一种，通常两种磁性金属组成的磁性薄膜是通过引入蒸气形式的金属化合物，还原气体， 并且可选地，将氧化气体放入放置基板的真空室中，并优选加热至至少100℃的温度，并使反应气体进行等离子体激发，从而实现磁性薄膜的气相生长 在基板上。

    High frequency amplifier
    47.
    发明授权
    High frequency amplifier 有权
    高频放大器

    公开(公告)号：US07907009B2

    公开(公告)日：2011-03-15

    申请号：US12514159

    申请日：2006-11-30

    申请人： Kazutomi Mori ,  Kazuhiro Iyomasa ,  Akira Ohta ,  Teruyuki Shimura ,  Masatoshi Nakayama

    发明人： Kazutomi Mori ,  Kazuhiro Iyomasa ,  Akira Ohta ,  Teruyuki Shimura ,  Masatoshi Nakayama

    IPC分类号： H03F3/68

    CPC分类号： H03F1/0277 ,  H03F1/565 ,  H03F3/191 ,  H03F3/211 ,  H03F3/72 ,  H03F2200/318 ,  H03F2200/366 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2200/456 ,  H03F2203/7233 ,  H03F2203/7236 ,  H03H7/38

    摘要： Provided is a high frequency amplifier including two amplifying elements of different element sizes connected in parallel and switching the amplifying elements in accordance with a level of output power. In particular, the high frequency amplifier includes an output matching circuit for matching to characteristic impedance (50 ohms) both when the output power is high and low, and increasing impedance when the turned-off amplifying element is viewed from a connection node on an output side of the two amplifying elements. Consequently, characteristics such as high output power and high efficiency can be achieved and it is possible to prevent an amplified high frequency signal from passing around to a matching circuit on a turned-off amplifying element side.

    摘要翻译： 提供了包括并联连接的不同元件尺寸的两个放大元件的高频放大器，并且根据输出功率的电平来切换放大元件。 特别地，高频放大器包括输出匹配电路，用于在输出功率高和低时匹配特性阻抗（50欧姆），并且当输出端上的连接节点观察关断放大元件时增加阻抗 一侧的两个放大元件。 因此，可以实现诸如高输出功率和高效率的特性，并且可以防止放大的高频信号在关闭放大元件侧通过到匹配电路。

    Method for producing a protective thin film for a magnetic head
    48.
    发明授权
    Method for producing a protective thin film for a magnetic head 有权
    用于制造用于磁头的保护性薄膜的方法

    公开(公告)号：US07280312B2

    公开(公告)日：2007-10-09

    申请号：US10867743

    申请日：2004-06-16

    申请人： Masatoshi Nakayama

    发明人： Masatoshi Nakayama

    IPC分类号： G11B5/40 ,  G11B5/39

    CPC分类号： G11B5/127 ,  G11B5/187 ,  Y10T428/1164

    摘要： A protective thin-film for a magnetic head is produced by a method comprising vapor-depositing from an atmosphere containing Si, C and H under an operating pressure of less than 0.05 Torr while applying a negative bias voltage of less than −400 V but greater than −1000 V to a magnetic head, a protective thin film on at least the surface of the head facing a recording medium, the protective film containing Si, C and H in amounts of 3-9 at %, 61-81 at % and 16-30 at %, respectively, having a thickness of 1-3 nm and having a refractive index of 2.0 or more.

    摘要翻译： 通过包括在低于0.05Torr的工作压力下从含有Si，C和H的气氛中气相沉积的方法制造用于磁头的保护性薄膜，同时施加小于-400V但更大的负偏压 至少在磁头表面的-1000V，保护薄膜至少在面对记录介质的磁头表面上，该保护膜含有3-9原子％，61-81原子％的Si，C和H; 16-30at％，其厚度分别为1-3nm，折射率为2.0以上。

    Thermal head having wear-resistant protective film
    49.
    发明授权
    Thermal head having wear-resistant protective film 失效

    公开(公告)号：US07106356B2

    公开(公告)日：2006-09-12

    申请号：US10262092

    申请日：2002-09-30

    申请人： Masatoshi Nakayama ,  Masahiro Nakano ,  Tsukimi Endo

    发明人： Masatoshi Nakayama ,  Masahiro Nakano ,  Tsukimi Endo

    IPC分类号： B41J2/335

    CPC分类号： B41J2/345

    摘要： A method of producing a wear-resistant protective film for a thermal head comprises depositing a wear-resistant protective film by sputtering on a thermal head which includes a substrate, and a heat-developing layer and a pair of electrodes formed on either the substrate or a heat-regenerative layer formed thereon. A layer of the wear resistant protective film is formed under a RF larger bias and another layer without a bias or with a smaller bias. Good step coverage is obtained by the RF sputter layer of the wear-resistant and the protective film prevents the intrusion of water that can cause cracking, and the layer formed under no or smaller bias reduces internal stresses and inhibits the development of cracks due to internal stresses as well as the cracking by RF sputtering.

    Fluid dynamic bearing
    50.
    发明授权
    Fluid dynamic bearing 失效
    流体动力轴承

    公开(公告)号：US06722785B1

    公开(公告)日：2004-04-20

    申请号：US09599858

    申请日：2000-06-23

    申请人： Izumi Ikeo ,  Masatoshi Nakayama

    发明人： Izumi Ikeo ,  Masatoshi Nakayama

    IPC分类号： F16C3312

    CPC分类号： F16C33/043 ,  F16C17/107 ,  F16C33/107 ,  F16C2370/12

    摘要： A fluid dynamic bearing has a shaft (11) fitted in a sleeve (12) for rotation, with a fluid filled therebetween. The shaft (11) and/or sleeve (12) is formed with a pattern consisting of grooves (111g) and lands for generating a pressure distribution in the fluid and then covered with a diamond-like carbon film (11c) over the surface of the grooves and the surface of the lands.

    摘要翻译： 流体动力轴承具有装配在套筒（12）中用于旋转的轴（11），其间填充有流体。 轴（11）和/或套筒（12）形成有由凹槽（111g）和平台组成的图案，用于在流体中产生压力分布，然后在金刚石状碳膜（11c）的表面上覆盖 凹槽和平台的表面。