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公开(公告)号：US4641213A
公开(公告)日：1987-02-03
申请号：US630900
申请日：1984-07-16
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。
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公开(公告)号：US4609593A
公开(公告)日：1986-09-02
申请号：US630898
申请日：1984-07-16
IPC分类号： G11B5/62 , C08L67/02 , C08L79/08 , C22C45/04 , G11B5/64 , G11B5/66 , G11B5/667 , G11B5/73 , H01F10/12 , H01F10/13 , H01F10/16 , H01F1/00
CPC分类号： G11B5/66 , Y10S428/928 , Y10T428/12465 , Y10T428/12556 , Y10T428/12562 , Y10T428/12569 , Y10T428/12597 , Y10T428/12854 , Y10T428/12861 , Y10T428/12931
摘要： A perpendicular magnetic recording medium composed of a base material, a 1st magnetic thin layer formed on the base material, and a perpendicularly magnetizable 2nd magnetic thin layer formed on the 1st magnetic thin layer, wherein the 1st magnetic thin layer is composed of a Co-base ternary amorphous alloy containing small amounts of Hf and Ta.
摘要翻译： 由基材构成的垂直磁记录介质，形成在基材上的第一磁性薄层和形成在第一磁性薄层上的可垂直磁化的第二磁性薄层，其中第一磁性薄层由Co- 含有少量Hf和Ta的三元非晶合金。
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公开(公告)号：US4557769A
公开(公告)日：1985-12-10
申请号：US630897
申请日：1984-07-16
CPC分类号： C22C45/04 , C22C19/07 , H01F1/15316
摘要： A soft magnetic material having a low coercive force and a high permeability without reduction in saturation magnetic flux density is composed of a Co-base Co-Hf-Ta amorphous alloy containing 1 to 5 atoms % Hf and 4 to 10 atoms % Ta. The amorphous alloy is prepared by sputtering, etc.
摘要翻译： 具有低矫顽力和高磁导率而不降低饱和磁通密度的软磁材料由含有1至5原子％的Hf和4至10原子％的Ta的Co基Co-Hf-Ta非晶合金构成。 非晶合金通过溅射等制备
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公开(公告)号：US4657812A
公开(公告)日：1987-04-14
申请号：US687637
申请日：1984-12-31
申请人： Takashi Hatanai , Koichi Mukasa , Keishi Nakashima , Hiroshi Sato
发明人： Takashi Hatanai , Koichi Mukasa , Keishi Nakashima , Hiroshi Sato
CPC分类号： G11B5/66 , Y10T428/256
摘要： A magnetic recording medium for perpendicular magnetization includes a base of a nonmagnetic material, and a magnetic layer having perpendicular magnetic anisotropy on at least a face side of the base, the magnetic layer being composed of cobalt as a main component with carbon 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和至少在基底的正面上具有垂直磁各向异性的磁性层，所述磁性层由添加有碳的钴作为主要成分组成。
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5.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
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。
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6.发明授权
公开(公告)号：US4638387A
公开(公告)日：1987-01-20
申请号：US558328
申请日：1983-12-05
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。
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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
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。
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公开(公告)号：US4592963A
公开(公告)日：1986-06-03
申请号：US661067
申请日：1984-10-15
IPC分类号： G11B5/31
CPC分类号： G11B5/3106 , Y10S428/928 , Y10T428/12 , Y10T428/12007 , Y10T428/12569
摘要： A composite material for use in the preparation of substrates for thin film magnetic heads is provided which comprises a carbonaceous or graphitic material strengthened with a resin or metallic binder and optionally impregnated with a resin, metallic or non-metallic impregnant.
摘要翻译： 提供了用于制备用于薄膜磁头的基底的复合材料，其包括用树脂或金属粘合剂强化的碳质或石墨材料，并且任选地浸渍有树脂，金属或非金属浸渍剂。
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公开(公告)号：US4603091A
公开(公告)日：1986-07-29
申请号：US668299
申请日：1984-11-05
申请人： Koichi Mukasa , Takashi Hatanai , Keishi Nakashima
发明人： Koichi Mukasa , Takashi Hatanai , Keishi Nakashima
CPC分类号： G11B5/66 , Y10S428/928 , Y10T428/12465 , Y10T428/12806 , Y10T428/12819 , Y10T428/12826 , Y10T428/12854 , Y10T428/12861 , Y10T428/12937
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 tantalum, cobalt being a main component with chromium and tantalum 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，铬和钽的三元素合金构成，钴是主要成分，其中添加有铬和钽。
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10.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
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。
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