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    • 3. 发明专利
    • Magnetic head and manufacturing method of magnetic head
    • 磁头的磁头和制造方法
    • JP2008181598A
    • 2008-08-07
    • JP2007014425
    • 2007-01-25
    • Sony Corpソニー株式会社
    • SAITO TADASHINISHIUCHI SADAYUKIMATSUNAGA TORU
    • G11B5/265G11B5/127G11B5/29
    • PROBLEM TO BE SOLVED: To provide a magnetic head capable of performing a satisfied DC erasing and a servo signal recording, as a magnetic head used for a magnetic recording medium having a data signal recording section and a servo signal recording section on a magnetic layer. SOLUTION: A DC erasing magnetic head Ha which has a metallic magnetic film 4a and a gap section 4c formed on a surface of a core hemi-body 5a and performs the DC erasing to the servo signal recording section, and a servo signal recording magnetic head Hb which has a metallic magnetic layer film 4b and a gap 4d formed on a surface of a core hemi-body 5b and records the servo signal on a signal recording area of the servo signal recording section by a magnetic field in the direction opposite to the DC erasing, are integrated through non-magnetic materials 7a, 7b, so that formation surfaces of the metallic magnetic films 4a, 4b are formed in the same planer shape. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种能够执行满足的直流擦除和伺服信号记录的磁头,作为用于具有数据信号记录部分和伺服信号记录部分的磁记录介质的磁头 磁性层。 解决方案:具有形成在芯半体5a的表面上并且对伺服信号记录部进行直流擦除的金属磁性膜4a和间隙部分4c的直流擦除磁头Ha和伺服信号 记录磁头Hb,其具有形成在芯半体5b的表面上的金属磁性层膜4b和间隙4d,并将该伺服信号通过磁场方向记录在伺服信号记录部分的信号记录区域上 通过非磁性材料7a,7b将与DC擦除相对的方式集成,使得金属磁性膜4a,4b的形成表面以相同的平面形状形成。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Servo write head assembly and servo writer
    • 伺服写头组件和伺服写
    • JP2004326852A
    • 2004-11-18
    • JP2003116667
    • 2003-04-22
    • Fuji Photo Film Co Ltd富士写真フイルム株式会社
    • NAKAO TORUIZUMIDA TAKAHISA
    • G11B5/265G11B5/29G11B5/584G11B15/60
    • G11B5/584
    • PROBLEM TO BE SOLVED: To provide a servo writer capable of writing a servo signal in which the SN ratio of a read signal is large. SOLUTION: This assembly is provided with an AC demagnetization head 27 for demagnetizing the data band of a magnetic tape MT whose full surface is magnetized in one longitudinal direction, a servo signal write head 25 for magnetizing the servo band of the magnetic tape MT in a reverse direction to write a servo signal, and a guide 29a for regulating the width-direction movement of the traveling magnetic tape MT. The AC magnetization head 27 and the servo signal write head 25 are integrally constituted, and the guide is arranged between the AC demagnetization head 27 and the servo signal write head 25. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够写入其中读取信号的SN比大的伺服信号的伺服写入器。 解决方案:该组件设置有用于使整个表面在一个纵向方向被磁化的磁带MT的数据带去磁的AC去磁头27,用于磁化磁带的伺服带的伺服信号写入头25 MT反向写入伺服信号,以及用于调节行进磁带MT的宽度方向移动的引导件29a。 交流磁化头27和伺服信号写入磁头25一体构成,导向件配置在AC退磁磁头27和伺服信号写入磁头25之间。(C)2005,JPO&NCIPI