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25 条记录 (耗时 0.019 秒)

    Magnetic recording medium
    21.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US5387464A

    公开(公告)日：1995-02-07

    申请号：US925032

    申请日：1992-08-05

    申请人： Kazuo Kato ,  Kenichi Masuyama ,  Hiroaki Araki ,  Hiroshi Hashimoto

    发明人： Kazuo Kato ,  Kenichi Masuyama ,  Hiroaki Araki ,  Hiroshi Hashimoto

    IPC分类号： G11B5/716 ,  C09D5/23 ,  G11B5/702 ,  G11B5/73 ,  G11B5/738 ,  G11B5/00

    CPC分类号： G11B5/738 ,  G11B5/7021 ,  G11B5/7023 ,  Y10S428/90 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/265 ,  Y10T428/31554 ,  Y10T428/31562 ,  Y10T428/31565 ,  Y10T428/3158 ,  Y10T428/31609 ,  Y10T428/31736 ,  Y10T428/3175 ,  Y10T428/31797 ,  Y10T428/31935

    摘要： A magnetic recording medium is disclosed, comprising a non-magnetic support with an undercoating layer having formed thereon one or more magnetic layers. The undercoating layer contains a polyester resin or polyurethane resin having at least one polar group selected from the group consisting of --SO.sub.3 M, --OSO.sub.3 M, --COOM, and --OPO.sub.3 M.sub.2 (wherein M represents a hydrogen atom, an alkali metal, or an ammonium base, and M in different polar group or plural M's within the same polar group may be the same or different), and a glass transition temperature (Tg) of from 40.degree. C. to 80.degree. C. The magnetic layer contains a binder resin having at least one polar group selected from the same group as defined above. The recording medium has excellent adhesion between the non-magnetic support and the magnetic layer, high running durability and excellent electromagnetic characteristics.

    摘要翻译： 公开了一种磁记录介质，其包括具有在其上形成有一个或多个磁性层的底涂层的非磁性载体。 底涂层含有具有至少一个选自-SO 3 M，-OSO 3 M，-COOM和-OPO 3 M 2的极性基团的聚酯树脂或聚氨酯树脂（其中M表示氢原子，碱金属或铵基 ，M不同极性基团中的M或相同极性基团中的多个M可以相同或不同），玻璃化转变温度（Tg）为40℃〜80℃。磁性层含有具有 选自与上述定义相同的至少一个极性基团。 记录介质在非磁性载体和磁性层之间具有优异的粘附性，高运行耐久性和优异的电磁特性。

    Magnetic recording media
    22.
    发明授权
    Magnetic recording media 失效
    磁记录媒体

    公开(公告)号：US4336308A

    公开(公告)日：1982-06-22

    申请号：US74467

    申请日：1979-09-11

    申请人： Yasuyuki Yamada ,  Kenichi Masuyama ,  Nobuo Tsuji

    发明人： Yasuyuki Yamada ,  Kenichi Masuyama ,  Nobuo Tsuji

    IPC分类号： C09D5/23 ,  G11B5/702 ,  G11B5/70

    CPC分类号： G11B5/7022 ,  Y10S428/90 ,  Y10T428/31609 ,  Y10T428/31935

    摘要： A magnetic recording medium and, more particularly, a magnetic recording medium based on a magnetic composition exhibiting high dispersibility of finely divided ferromagnetic powders and having excellent abrasion resistance is disclosed wherein the binder for the magnetic composition contains a 2-chloroacrylonitrile polymer and a thermoplastic polyurethane resin; in another embodiment of the invention the binder additionally contains a polyisocyanate.

    摘要翻译： 公开了一种磁记录介质，更具体地说，一种磁性组合物的粘结剂含有2-氯丙烯腈聚合物和热塑性聚氨酯的磁性组合物，该磁性组合物表现出高分散性的铁磁性粉末并具有优异的耐磨性 树脂; 在本发明的另一个实施方案中，粘合剂另外含有多异氰酸酯。

    Magnetic recording media
    23.
    发明授权
    Magnetic recording media 失效
    磁记录媒体

    公开(公告)号：US4333988A

    公开(公告)日：1982-06-08

    申请号：US74469

    申请日：1979-09-11

    申请人： Yasuyuki Yamada ,  Kenichi Masuyama ,  Tatsuji Kitamoto

    发明人： Yasuyuki Yamada ,  Kenichi Masuyama ,  Tatsuji Kitamoto

    IPC分类号： C09D5/23 ,  G11B5/702 ,  G11B5/70

    CPC分类号： G11B5/7022 ,  Y10S428/90 ,  Y10T428/31609 ,  Y10T428/31935

    摘要： A recording medium and, more particularly, a recording medium based on a composition exhibiting high dispersibility for finely-divided ferromagnetic powders having excellent abrasion resistance is disclosed in which the magnetic composition comprises a finely-divided ferromagnetic powders dispersed in a binder containing 2-chloroacrylonitrile polymer and a polyurethane prepolymer; in another embodiment of the invention the magnetic composition additionally contains a polyisocyanate compound.

    摘要翻译： 更具体地说，记录介质，特别是基于对具有优异耐磨性的细碎铁磁粉末显示高分散性的组合物的记录介质，其中磁性组合物包含分散在含有2-氯丙烯腈的粘合剂中的细碎铁磁粉末 聚合物和聚氨酯预聚物; 在本发明的另一个实施方案中，磁性组合物另外含有多异氰酸酯化合物。

    POLISHING METHOD FOR A WORKPIECE AND POLISHING TOOL USED FOR THE POLISHING METHOD
    24.
    发明申请
    POLISHING METHOD FOR A WORKPIECE AND POLISHING TOOL USED FOR THE POLISHING METHOD 审中-公开
    用于抛光方法的工件和抛光工具的抛光方法

    公开(公告)号：US20110028074A1

    公开(公告)日：2011-02-03

    申请号：US12845149

    申请日：2010-07-28

    申请人： Kenichi Masuyama

    发明人： Kenichi Masuyama

    IPC分类号： B24B1/00

    CPC分类号： B24B27/0076 ,  B24B41/002 ,  B24D5/066 ,  B24D5/10 ,  B24D13/02 ,  B24D13/20

    摘要： Provided is a polishing tool capable of forming a high-quality surface of a workpiece for a short period of time. A polishing tool includes: a rotation shaft arranged parallel to a sending direction of moving the polishing tool relative to a workpiece; and at least two polishing bodies. The polishing body includes a foamed resin such as a foamed polyurethane resin, and has an outer peripheral surface having a porosity higher than that of the polishing body. The polishing body includes a non-foamed resin such as a non-foamed polyurethane resin being a material more rigid than that for the polishing body. When polishing-processing, the polishing body performs polishing removal on a surface of the workpiece, and the polishing body smoothes a waviness formed on the surface through the polishing removal.

    摘要翻译： 提供能够在短时间内形成工件的高品质表面的研磨工具。 抛光工具包括：平行于发送方向设置的旋转轴，用于相对于工件移动抛光工具; 和至少两个抛光体。 抛光体包括发泡聚氨酯树脂等泡沫树脂，其外周面的孔隙率高于研磨体。 抛光体包括非发泡树脂，例如非发泡聚氨酯树脂，其是比抛光体更刚性的材料。 当抛光处理时，抛光体在工件的表面上进行抛光去除，并且抛光体通过抛光去除来平滑在表面上形成的波纹。