Thermal printer
    57.
    发明授权
    Thermal printer 失效
    热敏打印机

    公开(公告)号:US4407003A

    公开(公告)日:1983-09-27

    申请号:US340221

    申请日:1982-01-18

    申请人: Hiroshi Fukui

    发明人: Hiroshi Fukui

    CPC分类号: B41J2/37

    摘要: A thermal printer is provided in which a source voltage is detected and the driving time of a thermal head as well as the driving time of a motor for driving the thermal head, are suitably controlled according to the result of the detection.

    摘要翻译: 提供一种热敏打印机,其中根据检测结果适当地控制源电压并且热头的驱动时间以及用于驱动热敏头的电动机的驱动时间。

    Thin film magnetic head for high density recording and having a leading side magnetic pole piece of variable width at the media facing surface
    59.
    发明授权
    Thin film magnetic head for high density recording and having a leading side magnetic pole piece of variable width at the media facing surface 有权
    用于高密度记录的薄膜磁头并且在介质面向表面具有可变宽度的前端磁极片

    公开(公告)号:US07821737B2

    公开(公告)日:2010-10-26

    申请号:US11486802

    申请日:2006-07-14

    IPC分类号: G11B5/187

    摘要: Embodiments of the invention provide a thin film magnetic head suitable for high density recording having a small erase band ΔE and a small fringe magnetic field, and a large recording magnetic field. In one embodiment, a width LW of a lower magnetic pole piece protuberance of a leading side magnetic pole piece, at a face in contact with a write gap layer, is made smaller than a width TW of an upper magnetic pole piece front layer of a trailing side magnetic pole piece, at a face in contact with the write gap layer, and the width of the lower magnetic pole piece protuberance adjacent to the write gap layer is made larger, in a direction from the write gap layer.

    摘要翻译: 本发明的实施例提供一种适用于高密度记录的薄膜磁头,其具有小的擦除带&Dgr; E和小的边缘磁场以及大的记录磁场。 在一个实施例中,使前侧磁极片的下磁极片突起在与写间隙层接触的面处的宽度LW小于上述磁极片前层的宽度TW 在与写入间隙层接触的面处的后侧磁极片和与写入间隙层相邻的下部磁极片突起的宽度在从写入间隙层的方向上变大。

    Magnetic head with recessed portion, and magnetic recording and reproduction apparatus comprising the same
    60.
    发明授权
    Magnetic head with recessed portion, and magnetic recording and reproduction apparatus comprising the same 失效
    具有凹部的磁头,以及包括该磁头的磁记录和再现装置

    公开(公告)号:US07483243B2

    公开(公告)日:2009-01-27

    申请号:US11252913

    申请日:2005-10-17

    IPC分类号: G11B5/127

    CPC分类号: G11B5/1278

    摘要: Embodiments of the invention provide a magnetic head which prevents data on a recording medium from being erased even when a stray field is applied. In one embodiment, a magnetic head includes a perpendicular write head having a main pole and an auxiliary pole; and a read head having a lower shield, an upper shield and a magneto-resistive element formed between the lower shield and the upper shield. At least one of the auxiliary pole, lower shield and upper shield has a recessed portion, whose height in an element height direction is lower than the height of edges thereof in a track width direction, on a surface opposite to the air bearing surface.

    摘要翻译: 本发明的实施例提供一种磁头,即使当施加杂散场时也防止记录介质上的数据被擦除。 在一个实施例中,磁头包括具有主极和辅助极的垂直写入头; 以及具有下屏蔽,上屏蔽和形成在下屏蔽和上屏蔽之间的磁阻元件的读头。 辅助杆,下护罩和上护罩中的至少一个在与空气轴承表面相对的表面上具有在元件高度方向上的高度低于轨道宽度方向上的边缘的高度的凹部。