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    • 97. 发明授权
    • Magnetic head and magnetic storage apparatus using the same
    • 磁头及使用其的磁性存储装置
    • US06469873B1
    • 2002-10-22
    • US09065868
    • 1998-04-24
    • Yoji MaruyamaYoshio SuzukiRyoichi NakataniHisashi Takano
    • Yoji MaruyamaYoshio SuzukiRyoichi NakataniHisashi Takano
    • G11B539
    • B82Y25/00B82Y10/00G11B5/02G11B5/035G11B5/3954G11B2005/0029G11B2005/3996
    • It is the object of the invention to provide a magnetic head and a magnetic storage apparatus using the magnetic head provided with a signal reproducing means which is capable of using the same signal processing circuit as used for the conventional longitudinal magnetization film type recording medium even when a perpendicular magnetization film type recording medium is used. Because the present invention renders the reproducing signal generated from a perpendicular magnetization film Gaussian shaped (Lorentzian pulse), the same signal processing circuit as used for the conventional longitudinal magnetization film type recording medium can be used. To accomplish this object, in the reproducing means which is the component of the information reproducing component of the magnetic head, the first spin valve element and the second valve element are piled up, the magnetization direction of pinned layers of both elements is prescribed so as to be antiparallel each other, and lead electrodes of both elements are connected so as to be common. When two spin valve elements are piled up to compose a reproducing means, the first spin valve element is structured so as to have an Ru film between the first ferromagnetic film and the second ferromagnetic film and so as to have a Cu film between the second ferromagnetic film and the third ferromagnetic film, and the second spin valve element is structured so as to have a Cu film between the fourth ferromagnetic film and the fifth ferromagnetic film. These two elements are piled up with interposition of a desired spacer film adjacently.
    • 本发明的目的是提供一种使用具有信号再现装置的磁头的磁头和磁存储装置,该装置能够使用与常规的纵向磁化膜式记录介质相同的信号处理电路,即使当 使用垂直磁化膜型记录介质。 因为本发明使得从垂直磁化膜高斯形(洛伦兹脉冲)产生的再现信号,可以使用与常规纵向磁化膜型记录介质相同的信号处理电路。 为了实现该目的,在作为磁头的信息再现部件的部件的再现装置中,第一自旋阀元件和第二阀元件堆叠,两个元件的钉扎层的磁化方向被规定为 反向平行,并且两个元件的引线电极连接成共同的。 当两个自旋阀元件堆积以构成再现装置时,第一自旋阀元件构造成在第一铁磁膜和第二铁磁膜之间具有Ru膜,并且在第二铁磁性元件之间具有Cu膜 膜和第三铁磁膜,并且第二自旋阀元件被构造成在第四铁磁膜和第五铁磁膜之间具有Cu膜。 这两个元件堆积在一起,相邻地插入所需的间隔膜。
    • 98. 发明授权
    • Disk cartridge and disk device using the same
    • 磁盘盒和磁盘设备使用相同
    • US06181664B2
    • 2001-01-30
    • US09525121
    • 2000-03-14
    • Kiyoshi KanoYasuo OhtsukaMikio ShiraishiToshifumi TakeuchiMasafumi NakamuraMasayuki InoueYoshio SuzukiMichio Miura
    • Kiyoshi KanoYasuo OhtsukaMikio ShiraishiToshifumi TakeuchiMasafumi NakamuraMasayuki InoueYoshio SuzukiMichio Miura
    • G11B3302
    • G11B17/0436G11B17/047G11B23/0308G11B23/0311G11B23/0317
    • A disk apparatus for use in a disk cartridge system including different types of disk cartridge. The disk cartridge system has a first disk cartridge and a second disk cartridge. The first disk cartridge including a first case having a substantially rectangular shape with first, second, third and fourth edges, and at least one of a first groove in both of the second and third edges, and a first cutout portion in both of the second and third edges and passing through a thickness of the first case. The second disk cartridge includes a second case having a substantially rectangular shape with fifth, sixth, seventh and eighth edges, the fifth edge of the second case being delimited by a fifth corner portion connecting the fifth edge and sixth edge, and at least one of a second groove located in only one of the sixth and seventh edges and a second cutout portion located in both of the sixth and seventh edges without passing through a thickness of the second case. A length, width and thickness of the first case are substantially equal to a length, width and thickness of the second case and a diameter and thickness of the first disk are substantially equal to a diameter and thickness of the second disk. The disk apparatus having a discrimination arrangement which discriminates at least one of the groove and the cutout portion.
    • 一种用于包括不同类型的盘盒的盘盒系统的盘装置。 盘盒系统具有第一盘盒和第二盘盒。 第一盒式磁盘包括具有第一,第二,第三和第四边缘的大致矩形形状的第一壳体,以及第二和第三边缘两者中的至少一个第一凹槽以及第二凹部中的第二切口部分 和第三边缘并穿过第一壳体的厚度。 第二盒式磁盘包括具有第五,第六,第七和第八边缘的基本矩形形状的第二壳体,第二壳体的第五边缘由连接第五边缘和第六边缘的第五角部限定, 仅位于第六和第七边缘中的一个的第二凹槽和位于第六和第七边缘中的第二切口部分,而不穿过第二壳体的厚度。 第一壳体的长度,宽度和厚度基本上等于第二壳体的长度,宽度和厚度,并且第一盘的直径和厚度基本上等于第二盘的直径和厚度。 该盘装置具有区分凹槽和切口部分中的至少一个的识别装置。