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    • 3. 发明申请
    • Data erasing device using permanent magnet
    • 使用永磁体的数据擦除装置
    • US20070047128A1
    • 2007-03-01
    • US11311684
    • 2005-12-20
    • Yoshinori KadowakiHisato SuzukiHiroyuki UematsuHiroshi Hasegawa
    • Yoshinori KadowakiHisato SuzukiHiroyuki UematsuHiroshi Hasegawa
    • G11B5/03
    • G11B5/024
    • A data erasing device that erases data recorded on a magnetic disk, by a magnetic field generated in a horizontal direction by magnets, in order to prevent leakage of the data recorded on the magnetic disk of a magnetic disk device to be abandoned. The data erasing device includes a main body case having a path on which a tray is reciprocated, a demagnetizing circuit having plural permanent magnets adjacently disposed along the path in mutually adsorbing polarities, and a tray for accommodating the magnetic recording medium, and capable of reciprocating on the path. This tray includes a first accommodation groove and a second accommodation groove for accommodating the magnetic disk device. The first accommodation groove and the second accommodation groove cross each other to form an angle of 45 degrees or 90 degrees.
    • 一种数据擦除装置,其通过磁铁在水平方向上产生的磁场来擦除记录在磁盘上的数据,以防止记录在要被放弃的磁盘装置的磁盘上的数据的泄漏。 数据擦除装置包括具有托盘往复运动的路径的主体壳体,具有沿着路径相互吸附极性相邻设置的多个永磁体的去磁回路,以及用于容纳磁记录介质的托盘,能够往复运动 在路上 该托盘包括用于容纳磁盘装置的第一容纳槽和第二容纳槽。 第一容纳槽和第二容纳槽彼此交叉以形成45度或90度的角度。
    • 4. 发明申请
    • Data erasing device using permanent magnet
    • 使用永磁体的数据擦除装置
    • US20060146435A1
    • 2006-07-06
    • US11128380
    • 2005-05-13
    • Hiroshi HasegawaHisato SuzukiHiroyuki Uematsu
    • Hiroshi HasegawaHisato SuzukiHiroyuki Uematsu
    • G11B5/03
    • G11B5/0245
    • A data erasing device erasing data from a magnetic disk using horizontal-direction and vertical-direction magnetic fields of magnets consists of a main body case having a path connected to an opening formed on one side surface, a first magnetic field generating source having three permanent magnets adjacently disposed on one surface of the path in mutually adsorbing polarities, a second magnetic field generating source having three permanent magnets on the other side of the first magnetic field generating source via the path, and a tray that accommodates a magnetic recording medium and reciprocates within the path. Only one permanent magnet at one end of the second magnetic field generating source has a polarity of the same direction as that of the opposite permanent magnet. Each of the rest two permanent magnets has a polarity in a direction different from that of the opposite permanent magnet.
    • 使用磁体的水平方向和垂直方向磁场从磁盘擦除数据的数据擦除装置由具有连接到形成在一个侧面上的开口的路径的主体壳体,具有三个永久性的第一磁场产生源 以相互吸引的极性相邻地设置在路径的一个表面上的磁体,具有经由路径的第一磁场产生源的另一侧上具有三个永磁体的第二磁场产生源,以及容纳磁记录介质并往复运动的托盘 在路径内。 在第二磁场产生源的一端只有一个永磁体具有与相对的永久磁铁相同方向的极性。 其余的两个永久磁铁中的每一个都具有与相对的永磁体不同的方向的极性。
    • 9. 发明授权
    • Data erasing device using permanent magnet
    • 使用永磁体的数据擦除装置
    • US07233477B2
    • 2007-06-19
    • US10656113
    • 2003-09-08
    • Hiroshi HasegawaHisato SuzukiHiroyuki Uematsu
    • Hiroshi HasegawaHisato SuzukiHiroyuki Uematsu
    • H01F13/00
    • G11B5/0245
    • In a portable data erasing device, to prevent data leaks from magnetic disk devices to be disposed, data is erased by a simple operation. The data erasing device using a magnetic field generated by permanent magnets to erase data comprises a sliding tray, a main body and a swinging tray. The sliding tray is movable into and out from the main body, two permanent magnets, adjacently arranged so that the north and south poles thereof have mutually attracting polarities, are attached to the front end of the sliding tray. One end of the swinging tray is fixed to the upper surface of the main body by a shaft, so that a magnetic disk device can be mounted and swung on top of the main body. While the sliding tray is extracted stepwise from the main body, the magnetic disk device can be swung, and data on the magnetic disks erased.
    • 在便携式数据擦除装置中,为了防止数据从磁盘装置泄漏出来,通过简单的操作来擦除数据。 使用由永磁体产生的磁场来擦除数据的数据擦除装置包括滑动托盘,主体和摆动托盘。 滑动托盘可移动进入主体和从主体移出,两个永磁体相邻地布置成使得其南极和南极具有相互吸引的极性,附接到滑动托盘的前端。 摆动托盘的一端通过轴固定在主体的上表面,从而可以在主体的顶部上安装和摆动磁盘装置。 当滑动托盘从主体逐步抽出时,磁盘装置可以摆动,并且磁盘上的数据被擦除。