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    Glass-ceramic substrate for a magnetic disk
    11.
    发明授权
    Glass-ceramic substrate for a magnetic disk 失效
    用于磁盘的玻璃陶瓷基板

    公开(公告)号：US5985777A

    公开(公告)日：1999-11-16

    申请号：US150958

    申请日：1998-09-10

    申请人： Katsuhiko Yamaguchi

    发明人： Katsuhiko Yamaguchi

    IPC分类号： C03C10/00 ,  C03C10/04 ,  G11B5/73 ,  G11B5/84 ,  C03C10/14

    CPC分类号： G11B5/7315 ,  C03C10/0027 ,  C03C10/0045 ,  G11B5/8404

    摘要： A glass-ceramic substrate for a magnetic disk suitable for use as a contact recording type magnetic disk includes alpha-cristobalite (alpha-SiO.sub.2) and lithium disilicate (Li.sub.2.SiO.sub.2) as main crystal phases. The ratio of alpha-cristobalite/lithium disilicate is within a range from 0.25 to 0.35, a grain diameter of crystal grains is within a range from 0.1 .mu.m to 1.0 .mu.m, surface roughness (Ra) of the substrate after polishing is within a range from 2 .ANG. to 10 .ANG. and abrasion resistance index (Aa) of the substrate is within a range from 5 to 15.

    摘要翻译： 适合用作接触记录型磁盘的磁盘用玻璃陶瓷基板包括作为主晶相的α-方英石（α-SiO 2）和二硅酸锂（Li 2 SiO）。 α-方英石/二硅酸锂的比例在0.25〜0.35的范围内，晶粒的晶粒直径在0.1μm〜1.0μm的范围内，研磨后的基板的表面粗糙度（Ra）在 范围从2 ANGSTROM到10 ANGSTROM和基材的耐磨性指数（Aa）在5至15的范围内。

    Method for manufacturing a crystalized glass magnetic disk substrate
    12.
    发明授权
    Method for manufacturing a crystalized glass magnetic disk substrate 失效
    晶体玻璃磁盘基板的制造方法

    公开(公告)号：US5567217A

    公开(公告)日：1996-10-22

    申请号：US442381

    申请日：1995-05-16

    申请人： Naoyuki Goto ,  Katsuhiko Yamaguchi

    发明人： Naoyuki Goto ,  Katsuhiko Yamaguchi

    IPC分类号： C03C10/00 ,  C03C10/14 ,  C03C23/00 ,  G11B5/73 ,  G11B5/84 ,  C03B32/00

    CPC分类号： G11B5/7315 ,  C03C10/0009 ,  C03C23/007 ,  G11B5/73 ,  G11B5/8404

    摘要： A magnetic disk substrate is made of a glass-ceramic having crystal phases of lithium disilicate (Li.sub.2 O.2SiO.sub.2) and alpha-quartz (SiO.sub.2). The crystal phase of alpha-quartz is formed of grown crystal grains each having a globular grain structure made of aggregated particles. Each globular grain has a size within a range from 0.3 .mu.m to 3 .mu.m. Surface roughness (Ra) of a polished surface of the magnetic disk substrate is within a range from 15 .ANG. to 50 .ANG. which is an optimum range of surface roughness for the magnetic disk.

    摘要翻译： 磁盘基板由具有二硅酸锂（Li 2 O 2·SiO 2）和α-石英（SiO 2）的晶相的玻璃陶瓷制成。 α-石英的晶相由具有由凝集颗粒形成的球状晶粒结构的生长晶粒形成。 每个球状颗粒的尺寸在0.3μm至3μm的范围内。 磁盘基板的抛光表面的表面粗糙度（Ra）在15〜50的范围内，这是磁盘表面粗糙度的最佳范围。

    Glass-ceramic for magnetic disks and method for manufacturing the same
    13.
    发明授权
    Glass-ceramic for magnetic disks and method for manufacturing the same 失效
    磁盘用玻璃陶瓷及其制造方法

    公开(公告)号：US5391522A

    公开(公告)日：1995-02-21

    申请号：US248757

    申请日：1994-05-25

    申请人： Naoyuki Goto ,  Katsuhiko Yamaguchi

    发明人： Naoyuki Goto ,  Katsuhiko Yamaguchi

    IPC分类号： C03C10/00 ,  C03C23/00 ,  G11B5/73 ,  G11B5/84 ,  C03C10/12 ,  C03C10/14

    CPC分类号： C03C10/00 ,  C03C10/0009 ,  C03C23/007 ,  G11B5/73 ,  G11B5/7315 ,  G11B5/8404

    摘要： A glass-ceramic for a magnetic disk substrate in which the grain size can be controlled and the surface roughness after polishing is within the range from 15 .ANG. to 50 .ANG. is provided by heat treating a base glass including in weight percent:______________________________________ SiO.sub.2 65-83% Li.sub.2 O 8-13% K.sub.2 O 0-7% Mgo + ZnO + PbO 0.5-5.5% in which MgO 0.5-5.5% ZnO 0-5% PbO 0-5% P.sub.2 O.sub.5 1-4% Al.sub.2 O.sub.3 0-7% As.sub.2 O.sub.3 + Sb.sub.2 O.sub.3 0-2% ______________________________________ The glass-ceramic contains lithium disilicate (Li.sub.2 O. 2SiO.sub.2) and alpha-quartz (SiO.sub.2) as the main crystal phases.

    摘要翻译： 通过热处理包括重量百分比的基础玻璃，提供了可控制晶粒尺寸和抛光后的表面粗糙度在15至50范围内的磁盘基底的玻璃陶瓷，该基础玻璃包括：-SiO 2 65- 83％-Li2O 8-13％-K2O 0-7％-Mgo + ZnO + PbO 0.5-5.5％ - 其中-Mg 0.5-5.5％-ZnO 0-5％-PbO 0-5％-P2O5 1-4 ％-Al2O3 0-7％-As2O3 + Sb2O3 0-2％ - 玻璃陶瓷含有二硅酸锂（Li2O·2SiO2）和α-石英（SiO2）为主要晶相。

    Optical glass
    15.
    发明授权
    Optical glass 失效
    光学玻璃

    公开(公告)号：US5320987A

    公开(公告)日：1994-06-14

    申请号：US957399

    申请日：1992-10-06

    申请人： Tatsuya Senoo ,  Katsuhiko Yamaguchi ,  Muneo Nakahara

    发明人： Tatsuya Senoo ,  Katsuhiko Yamaguchi ,  Muneo Nakahara

    IPC分类号： C03C3/078

    CPC分类号： C03C3/078 ,  Y10S501/903

    摘要： An optical glass which is a SiO.sub.2 --TiO.sub.2 --K.sub.2 O--RO (where R represents Mg, Ca, Sr, Ba and Zn metal elements) system glass of a specific content range exhibits optical constants of a refractive index (Nd) of about 1.58-1.78 and Abbe number (.nu.d) of about 28-45, is free of PbO and has an improved property against devitrification.

    摘要翻译： 作为特定含量范围的SiO 2 -TiO 2 -K 2 O-RO（其中R表示Mg，Ca，Sr，Ba和Zn金属元素）系统玻璃的光学玻璃的折射率（Nd）约为1.58〜 1.78和约28-45的阿贝数（nu d）不含PbO，具有改善的抗失透性能。

    Siloxane-modified polyimide precursor and polyimide
    16.
    发明授权
    Siloxane-modified polyimide precursor and polyimide 失效
    硅氧烷改性的聚酰亚胺前体和聚酰亚胺

    公开(公告)号：US4520075A

    公开(公告)日：1985-05-28

    申请号：US654517

    申请日：1984-09-25

    申请人： Kazumasa Igarashi ,  Katsuhiko Yamaguchi ,  Kazuo Iko ,  Kazuyuki Miki

    发明人： Kazumasa Igarashi ,  Katsuhiko Yamaguchi ,  Kazuo Iko ,  Kazuyuki Miki

    IPC分类号： C08G73/10

    CPC分类号： C08G73/106 ,  Y10T428/31623 ,  Y10T428/31663 ,  Y10T428/31721 ,  Y10T428/31725

    摘要： A siloxane-modified polyimide precursor which can be converted into a polyimide having excellent adhesion and moisture resistance is produced by simultaneously polymerizing a diaminosiloxane and a diamine containing no silicon atoms in its molecule with 3,3',4,4'-biphenyltetracarboxylic dianhydride, wherein the diaminosiloxane is used in an amount of 1 to 4 mole % per mole of the total diamino compounds and such that the silicon content in the final reaction product is 0.5 wt % or less. The thus obtained precursor solution is further heat aged to reduce the molecular weight of the precursor so that solution viscosity is decreased to a proper level suitable for coating operation.

    摘要翻译： 通过在其分子中同时聚合二氨基硅氧烷和不含硅原子的二胺与3,3'，4,4'-联苯四羧酸二酐同时聚合可以转化为具有优异的粘合性和耐湿性的聚酰亚胺的硅氧烷改性的聚酰亚胺前体， 其中所述二氨基硅氧烷的用量为每摩尔全部二氨基化合物1至4摩尔％，并且使得最终反应产物中的硅含量为0.5重量％或更少。 由此获得的前体溶液进一步加热老化以降低前体的分子量，使得溶液粘度降低到适合于涂覆操作的适当水平。

    Process for producing polyimide precursor
    17.
    发明授权
    Process for producing polyimide precursor 失效
    聚酰亚胺前体的制备方法

    公开(公告)号：US4499252A

    公开(公告)日：1985-02-12

    申请号：US594063

    申请日：1984-03-28

    申请人： Kazumasa Igarashi ,  Katsuhiko Yamaguchi ,  Munekazu Tanaka

    发明人： Kazumasa Igarashi ,  Katsuhiko Yamaguchi ,  Munekazu Tanaka

    IPC分类号： C08G73/10

    CPC分类号： C08G73/106

    摘要： A process for producing a polyimide precursor having excellent adhesion property and improved moisture resistance by polymerization of an organic tetracarboxylic acid component and a diamine is disclosed. A portion of the organic tetracarboxylic acid is reacted with an aminosilane compound in which H in an amino group is substituted with a monovalent organic group containing a hydrophobic aromatic ring, to produce a silane-modified polycarboxylic acid component and the resulting silane-modified polycarboxylic acid component is polymerized with a diamine together with the residual organic tetracarboxylic acid component.

    摘要翻译： 公开了一种通过有机四羧酸组分和二胺的聚合制备具有优异的粘附性和改善的耐湿性的聚酰亚胺前体的方法。 将一部分有机四羧酸与氨基中的H被含有疏水性芳环的一价有机基团取代的氨基硅烷化合物反应，得到硅烷改性的多元羧酸成分，得到的硅烷改性多元羧酸 组分与残余的有机四羧酸组分一起与二胺聚合。

    Control device for internal combustion engine and vehicle incorporating control device
    19.
    发明授权
    Control device for internal combustion engine and vehicle incorporating control device 有权
    用于内燃机和车载控制装置的控制装置

    公开(公告)号：US09228514B2

    公开(公告)日：2016-01-05

    申请号：US14007536

    申请日：2011-03-31

    申请人： Kenji Hayashi ,  Takumi Anzawa ,  Eiji Fukushiro ,  Katsuhiko Yamaguchi

    发明人： Kenji Hayashi ,  Takumi Anzawa ,  Eiji Fukushiro ,  Katsuhiko Yamaguchi

    IPC分类号： F02D41/00 ,  F02D29/02 ,  F02D41/02 ,  F02D41/08 ,  F02D41/16 ,  F02D41/14

    CPC分类号： F02D41/0097 ,  F02D29/02 ,  F02D41/021 ,  F02D41/08 ,  F02D41/086 ,  F02D41/1497 ,  F02D41/1498 ,  F02D41/16 ,  F02D2200/0414 ,  F02D2250/28

    摘要： An ECU for controlling an engine counts the continued period of stopping the engine in a low-temperature environment. The ECU sets the idle rotational speed at a first idle rotational speed when the stopped period is below a predetermined threshold value, and at a second idle rotational speed higher than the first idle rotational speed when the stopped period exceeds the reference value. Accordingly, resonance at the driving force transmission system during idle operation can be prevented even in the case where a mount employed for attaching the engine to the vehicle is hardened as a result of undergoing a low-temperature environment for a long period of time, and the resonant rotational speed of the driving force transmission system including the engine varies.

    摘要翻译： 用于控制发动机的ECU计算在低温环境中停止发动机的持续时间。 当停止时段低于预定阈值时，ECU将怠速旋转速度设定在第一空转速度，当停止时间超过参考值时，将其设定为高于第一怠速转动速度的第二空转转速。 因此，即使在用于将发动机安装到车辆上的安装座由于经受长时间的低温环境而硬化的情况下也能够防止怠速运转期间的驱动力传递系统的共振，并且 包括发动机的驱动力传递系统的共振转速变化。