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    • 8. 发明申请
    • Magnetic head
    • 磁头
    • US20050135006A1
    • 2005-06-23
    • US11063115
    • 2005-02-22
    • Ikuya TagawaHideyuki AkimotoTomoko KutsuzawaSyuji Nishida
    • Ikuya TagawaHideyuki AkimotoTomoko KutsuzawaSyuji Nishida
    • G11B5/127
    • G11B5/127
    • A magnetic head increases the magnetic field strength just below a write gap 14 and thereby improves the recording resolution of a medium. To do so, an upper magnetic pole 10 and a lower magnetic pole 12 are disposed facing one another with the write gap 14 in between, with an end surface of the lower magnetic pole 12 being I-shaped and an end surface of the upper magnetic pole being T-shaped due to the upper magnetic pole 10 being formed of a first upper magnetic pole 10a that is disposed facing the lower magnetic pole 12 and is formed in an I shape that is shorter than the lower magnetic pole 12 and a second upper magnetic pole 10b that is joined to the first upper magnetic pole 10a and is formed wider than the first upper magnetic pole 10a.
    • 磁头使写入间隙14正下方的磁场强度增加,从而提高介质的记录分辨率。 为此,上磁极10和下磁极12彼此面对地设置有写间隙14,其中下磁极12的端面为I形,上磁极的端面 由于上磁极10由与第一上磁极10a形成的T形形成为T形,所述第一上磁极10a设置成面对下磁极12并形成为比下磁极12短的I形, 上磁极10b,其连接到第一上磁极10a并形成为比第一上磁极10a更宽。
    • 9. 发明授权
    • Information recording device having a function of erasing information in a standby state
    • 具有在待机状态下擦除信息的功能的信息记录装置
    • US06507448B2
    • 2003-01-14
    • US09736826
    • 2000-12-14
    • Syuji NishidaIkuya TagawaYuji Uehara
    • Syuji NishidaIkuya TagawaYuji Uehara
    • G11B503
    • G11B5/02G11B5/012G11B5/024G11B5/09G11B19/02G11B2005/0013
    • An information recording device which records information at a high recording density such that an error rate is reduced. In particular, an information recording device that includes a recording head, arranged near or to be close to the recording medium, for applying magnetic fields to the small regions when the recording head relatively moves with respect to the recording medium to pass on the small regions of the recording medium, and a recording head controller for controlling the recording head to cause the recording head to apply magnetic fields to the small regions in a free region of the recording medium in a standby state in which at least information is not recorded on the recording medium to uniform the directions of magnetization of the small regions so as to erase the information in the predetermined free region.
    • 一种以高记录密度记录信息以使错误率降低的信息记录装置。 具体地说,一种信息记录装置,包括靠近或靠近记录介质的记录头,用于当记录头相对于记录介质相对移动以在小区域上时向小区域施加磁场 以及记录头控制器,用于控制记录头,以使得记录头在至少信息未被记录在记录介质的待机状态的待机状态下向记录介质的自由区域中的小区域施加磁场 记录介质以使小区域的磁化方向均匀,从而擦除预定自由区域中的信息。