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19 条记录 (耗时 0.014 秒)

    Vertical recording magnetic head having single core body bonded with main magnetic pole in guard layer
    2.
    发明授权
    Vertical recording magnetic head having single core body bonded with main magnetic pole in guard layer 失效
    垂直记录磁头，其单芯体与保护层中的主磁极结合

    公开(公告)号：US4638391A

    公开(公告)日：1987-01-20

    申请号：US619034

    申请日：1984-06-11

    申请人： Takashi Hatanai ,  Keishi Nakashima ,  Koichi Mukasa

    发明人： Takashi Hatanai ,  Keishi Nakashima ,  Koichi Mukasa

    IPC分类号： G11B5/127 ,  G11B5/12 ,  G11B5/22

    CPC分类号： G11B5/1278

    摘要： A vertical recording magnetic head of a main pole magnetizing type is made of a magnetic core having a central leg and two side legs, while an electromagnetic coil is supported around the central leg for exciting the same. A non-magnetic member is secured to the magnetic core so as to cover the central leg and the two side legs, and a magnetic thin layer, which is operable as the main pole, is provided in the non-magnetic member at a position overlying the central leg of the magnetic core such that the thin layer extends vertically to a recording medium moved in contact with the non-magnetic member.

    摘要翻译： 主极磁化型的垂直记录磁头由具有中心腿和两个侧腿的磁芯制成，而电磁线圈被支撑在中心腿周围以激励它。 将非磁性部件固定在磁芯上，以便覆盖中心支腿和两个侧支腿，并且可操作为主极的磁性薄层设置在非磁性部件中的位置上 磁芯的中心腿使得薄层垂直延伸到与非磁性构件接触移动的记录介质。

    Composition for sliding contact part of recording/reproducing apparatus
    3.
    发明授权
    Composition for sliding contact part of recording/reproducing apparatus 失效
    记录/再现装置的滑动接触部分的组成

    公开(公告)号：US4638387A

    公开(公告)日：1987-01-20

    申请号：US558328

    申请日：1983-12-05

    申请人： Koichi Mukasa ,  Takashi Hatanai ,  Keishi Nakashima ,  Kazumasa Onishi

    发明人： Koichi Mukasa ,  Takashi Hatanai ,  Keishi Nakashima ,  Kazumasa Onishi

    IPC分类号： G11B5/255 ,  G11B5/187 ,  G11B15/60

    CPC分类号： G11B5/255

    摘要： A recording/reproducing apparatus is disclosed, characterized in that a sliding contact part coming into sliding contact with a magnetic recording medium is provided at the upstream side, as determined by the running direction of the magnetic recording medium, of a magnetic head core, and at least a portion of the sliding contact part coming into sliding contact with the magnetic recording medium is made of a composite material comprising a carbonaceous material and a mechanical strength-increasing material. This is applicable to a magnetic head, an erasing head, a pad for a magnetic head, and a running guide member.

    摘要翻译： 公开了一种记录/再现装置，其特征在于，与磁记录介质滑动接触的滑动接触部分设置在由磁记录介质的行进方向，磁头磁芯确定的上游侧，以及 与磁记录介质滑动接触的滑动接触部分的至少一部分由包含碳质材料和机械强度增加材料的复合材料制成。 这适用于磁头，擦除头，用于磁头的垫和行进引导构件。

    Recording medium for perpendicular magnetization
    4.
    发明授权
    Recording medium for perpendicular magnetization 失效
    用于垂直磁化的记录介质

    公开(公告)号：US4622273A

    公开(公告)日：1986-11-11

    申请号：US668300

    申请日：1984-11-05

    申请人： Keishi Nakashima ,  Takashi Hatanai ,  Koichi Mukasa

    发明人： Keishi Nakashima ,  Takashi Hatanai ,  Koichi Mukasa

    IPC分类号： G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/706 ,  G11B5/716 ,  C22C19/07 ,  H01F10/16

    CPC分类号： G11B5/66 ,  Y10S428/90 ,  Y10T428/12743 ,  Y10T428/12861

    摘要： A magnetic recording medium for perpendicular magnetization includes a base of a nonmagnetic material, a first magnetic layer of a soft magnetic material on a surface of the base, a second magnetic layer having perpendicular anisotropy on a surface of the first magnetic layer, the second magnetic layer being magnetized in a transverse direction thereof. The second magnetic layer is composed of a three-element alloy of cobalt, chromium, and hafnium, cobalt being a main component with chromium and hafnium added thereto.

    摘要翻译： 用于垂直磁化的磁记录介质包括非磁性材料的基底，在基底表面上的软磁材料的第一磁性层，在第一磁性层的表面上具有垂直各向异性的第二磁性层，第二磁性层 层沿其横向被磁化。 第二磁性层由钴，铬和铪的三元素合金组成，钴是主要成分，其中添加有铬和铪。

    Magnetic head for vertical magnetic recording and process for producing the same
    6.
    发明授权
    Magnetic head for vertical magnetic recording and process for producing the same 失效
    用于垂直磁记录的磁头及其制造方法

    公开(公告)号：US4720757A

    公开(公告)日：1988-01-19

    申请号：US752446

    申请日：1985-07-05

    申请人： Takashi Hatanai ,  Keishi Nakashima

    发明人： Takashi Hatanai ,  Keishi Nakashima

    IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/187 ,  G11B5/265

    CPC分类号： G11B5/1278

    摘要： A magnetic head for vertical magnetic recording having a leg portion formed on a core on the recording and reproducing side, which leg portion is put in connection with the recording and reproducing magnetic thin film and a leg portion formed on a core on the erasing side, which leg portion is put in connection with the erasing magnetic thin film. A recording and reproducing coil is provided on the leg, or pillar, portion formed on the core on the recording and reproducing side and an erasing winding, or coil, is provided in a groove, or on a pillar portion, formed on the core on the erasing side.

    摘要翻译： 一种用于垂直磁记录的磁头，具有形成在记录和再现侧的芯上的腿部，该腿部与记录和再现磁性薄膜连接，并且形成在擦除侧的芯上的腿部， 该部分与擦除磁性薄膜相关联。 记录和再现线圈设置在形成在记录和再现侧的芯上的腿或柱部分上，并且擦除线圈或线圈设置在形成在芯上的凹槽或柱部上 擦除方面。

    Magnetic head for perpendicular magnetic recording
    7.
    发明授权
    Magnetic head for perpendicular magnetic recording 失效
    用于垂直磁记录的磁头

    公开(公告)号：US4695512A

    公开(公告)日：1987-09-22

    申请号：US800056

    申请日：1985-11-20

    申请人： Takashi Hatanai ,  Keishi Nakashima

    发明人： Takashi Hatanai ,  Keishi Nakashima

    IPC分类号： G11B5/127 ,  G11B5/187 ,  G11B5/235

    CPC分类号： G11B5/1278 ,  Y10S428/90 ,  Y10T428/1171 ,  Y10T428/257 ,  Y10T428/30 ,  Y10T428/31663 ,  Y10T428/31721 ,  Y10T428/31725

    摘要： A magnetic head for perpendicular magnetic recording includes a pair of substrates consituted by a non-magnetic material and having their opposing surfaces respectively formed with heat-resistant polymer films. A thin magnetic film is retained between these substrates. Further, a non-magnetic intermediate film is interposed between the thin magnetic film and each of the polymer films. The intermediate film has a coefficient of thermal expansion which is close to that of the thin magnetic film. Accordingly, no internal stress is generated in the thin magnetic film which would otherwise be caused by thermal expansion and shrinkage in manufacture. Thus, it is possible for the magnetic head to possess sufficiently high wear resistance and excellent magnetic properties.

    摘要翻译： 用于垂直磁记录的磁头包括由非磁性材料构成并且其相对表面分别形成有耐热聚合物膜的一对基底。 这些基板之间保留有薄的磁性膜。 此外，非磁性中间膜介于薄磁性膜和每个聚合物膜之间。 中间膜的热膨胀系数接近薄膜的热膨胀系数。 因此，在制造时不会由热膨胀和收缩引起的薄磁膜中不产生内部应力。 因此，磁头具有足够高的耐磨性和优异的磁特性。

    Magnetic head
    9.
    发明授权
    Magnetic head 失效
    磁头

    公开(公告)号：US4641213A

    公开(公告)日：1987-02-03

    申请号：US630900

    申请日：1984-07-16

    申请人： Yutaka Shimada ,  Takashi Hatanai ,  Koichi Mukasa ,  Keishi Nakashima

    发明人： Yutaka Shimada ,  Takashi Hatanai ,  Koichi Mukasa ,  Keishi Nakashima

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B5/12 ,  G11B5/22

    CPC分类号： G11B5/3903 ,  G11B5/1278 ,  G11B5/3109

    摘要： A cobalt-base ternary alloy containing small amounts of hafnium and tantalum formed by sputtering, vapor deposition, etc., is used as the principal magnetic pole of a magnetic head for perpendicular magnetic recording, the core thin layers of a thin layer magnetic recording head, or the magnetic shield thin layers of a thin layer magnetic reproducing head. The ternary amorphous alloy has a high permeability and a high saturation magnetic flux density and hence the thickness of the foregoing layers composed of the alloy can be reduced as thin as possible.

    摘要翻译： 使用通过溅射，气相沉积等形成的含有少量铪和钽的钴基三元合金作为用于垂直磁记录的磁头的主磁极，薄层磁记录头的芯薄层 ，或薄层磁性再现头的磁屏蔽薄层。 三元非晶合金具有高磁导率和高饱和磁通密度，因此可以将由合金构成的上述层的厚度尽可能地减薄。