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43 条记录 (耗时 0.026 秒)

    Process for producing toner
    21.
    发明授权
    Process for producing toner 失效
    生产调色剂的方法

    公开(公告)号：US4565763A

    公开(公告)日：1986-01-21

    申请号：US498293

    申请日：1983-05-26

    申请人： Masaki Uchiyama ,  Yasuo Mitsuhashi

    发明人： Masaki Uchiyama ,  Yasuo Mitsuhashi

    IPC分类号： G03G9/087 ,  G03G11/00

    CPC分类号： G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

    摘要： A process for producing a toner includes melt-blending at least a colorant and a polymer and finely pulverizing the resulting blend after cooling, wherein the polymer is a crosslinked resin having a ratio of weight-average molecular weight to number-average molecular weight (Mw/Mn) exceeding 4.0 and a melt index of 0.01-10 g/10 min. at 110.degree. C. under a load of 10 Kg and the polymer is further crosslinked to form gel during the melt-blending. The toner thus obtained exhibits a good fixability without offset phenomenon over a wide temperature range.

    摘要翻译： 一种制造调色剂的方法包括将至少着色剂和聚合物熔融共混并在冷却后将所得共混物精细粉碎，其中聚合物是具有重均分子量与数均分子量（Mw）的交联树脂 / Mn）超过4.0，熔体指数为0.01-10g / 10min。 在110℃，10Kg的负荷下，聚合物进一步交联以在熔融共混过程中形成凝胶。 由此获得的调色剂在宽的温度范围内表现出良好的定影性而没有偏移现象。

    Electrostatic image magnetic developing process
    22.
    发明授权
    Electrostatic image magnetic developing process 失效
    静电图像磁性显影工艺

    公开(公告)号：US4299900A

    公开(公告)日：1981-11-10

    申请号：US128859

    申请日：1980-03-10

    申请人： Yasuo Mitsuhashi ,  Masashi Kiuchi ,  Yoshio Takasu ,  Hiroshi Fukumoto ,  Takashi Hino ,  Masaki Uchiyama

    发明人： Yasuo Mitsuhashi ,  Masashi Kiuchi ,  Yoshio Takasu ,  Hiroshi Fukumoto ,  Takashi Hino ,  Masaki Uchiyama

    IPC分类号： G03G13/09

    CPC分类号： G03G13/09

    摘要： A process for development comprises arranging an electrostatic image bearing member having electrostatic images on the surface and a developer carrying member at a predetermined space, an insulating magnetic developer containing 10-50% by weight of magnetic toner particles 20-35 microns in size being carried on the developer carrying member in a thickness thinner than the predetermined space, and transferring the insulating magnetic developer to the electrostatic image bearing member in the presence of a magnetic field.According to this process for development, there can be produced developed images of high fidelity, high density and high resolution and free from fog.

    摘要翻译： 一种开发方法包括：将表面上具有静电图像的静电图像承载部件和显影剂承载部件布置在预定的空间处，所述绝缘磁性显影剂含有10-50重量％的载体尺寸为20-35微米的磁性调色剂颗粒 在所述显影剂承载构件上的厚度比所述预定空间薄，并且在存在磁场的情况下将所述绝缘磁性显影剂转印到静电图像承载构件。 根据这一发展历程，可以制作高保真，高密度，高分辨率，无雾的显影图像。

    Rotating magnetic head for a magnetic recording reproduction system
    24.
    发明授权
    Rotating magnetic head for a magnetic recording reproduction system 失效
    旋转磁头用于磁记录再现系统

    公开(公告)号：US5313347A

    公开(公告)日：1994-05-17

    申请号：US638764

    申请日：1991-01-08

    申请人： Yasuo Mitsuhashi

    发明人： Yasuo Mitsuhashi

    IPC分类号： G11B5/53 ,  G11B5/588 ,  G11B5/596 ,  G11B5/56 ,  G11B7/00 ,  G11B21/02

    CPC分类号： G11B5/588 ,  G11B5/53

    摘要： A rotating magnetic head for a magnetic recording reproduction system. The rotating magnetic head detects the position of the rotating head placed on the periphery of a rotating drum, and perform servo control of the position of the movable head. The detection of the position of the rotating head is realized by an optical, non-contact mechanism or by detecting the difference of the track scanned by fixed heads. The former requires more than one movable heads and the latter requires a fixed head.

    摘要翻译： 用于磁记录再现系统的旋转磁头。 旋转磁头检测位于旋转鼓周边的旋转头的位置，并对可动头的位置进行伺服控制。 通过光学，非接触机构或通过检测由固定头扫描的轨迹的差异来实现旋转头的位置的检测。 前者需要多个可动头，后者需要固定头。

    Driver device of magnetic heads for magnetic record and reproduction
    25.
    发明授权
    Driver device of magnetic heads for magnetic record and reproduction 失效
    用于磁记录和再现的磁头驱动装置

    公开(公告)号：US5311377A

    公开(公告)日：1994-05-10

    申请号：US733843

    申请日：1991-07-22

    申请人： Yasuo Mitsuhashi

    发明人： Yasuo Mitsuhashi

    IPC分类号： G11B5/53 ,  G11B15/02 ,  G11B15/12 ,  G11B5/02 ,  G11B5/03

    CPC分类号： G11B5/531 ,  G11B15/02 ,  G11B15/125 ,  G11B5/53

    摘要： A driver device for magnetic heads for a magnetic recording and reproduction apparatus. The driver device drives at least one combined head including at least two head members, each head member having a winding coil, and the effective gap width of the combined head is changed by selectively short-circuiting at least one of the winding coils. By switching a connection between the combined head and a record amplifier or a reproduction head amplifier, the effective gap width of the combined head is changed either to a narrow effective gap width for n time speed recording or reproducing or to a wide effective gap width for standard speed recording or reproducing.

    摘要翻译： 一种用于磁记录和再现装置的磁头的驱动装置。 驱动器装置驱动至少一个包括至少两个头部构件的组合头部，每个头部构件具有绕组线圈，并且通过选择性地使至少一个绕组线圈短路来改变组合头部的有效间隙宽度。 通过切换组合磁头和记录放大器或再现磁头放大器之间的连接，组合磁头的有效间隙宽度被改变为n个时间速度记录或再现的窄有效间隙宽度，或者变化到宽的有效间隙宽度 标准速度记录或再现。

    Position control of a magnetic head in a magnetic recording and reproducing system
    26.
    发明授权
    Position control of a magnetic head in a magnetic recording and reproducing system 失效
    磁记录和再现系统中磁头的位置控制

    公开(公告)号：US5182683A

    公开(公告)日：1993-01-26

    申请号：US541943

    申请日：1990-06-22

    申请人： Yasuo Mitsuhashi

    发明人： Yasuo Mitsuhashi

    IPC分类号： G11B5/588 ,  G11B15/467 ,  G11B15/473

    CPC分类号： G11B15/473 ,  G11B5/588

    摘要： A magnetic recording and reproducing apparatus for reproducing information from a track recorded on a magnetic tape made to travel by being driven by a capstan. Even if a track has been recorded in a curved form, a magnetic head is displaced substantially perpendicularly to a rotational axis of a rotating drum in correspondence with the curve so as to trace the track. A signal read from the track by the magnetic head is subjected to envelope detection and is converted to a digital envelope signal. The capstan is driven and controlled such that the intensity of the digital envelope signal becomes substantially maximum. At the same time, a comparison is made between an ideal scanning pattern for the magnetic head stored in advance and the digital envelope signal, the ideal scanning pattern is corrected on the basis of the result of comparison, and the magnetic head is displaced in a substantially perpendicular direction to the rotational axis of the rotating drum so that the intensity of the envelope signal becomes substantially maximum. The magnetic head is affixed to a projecting portion of an annular spring with an air-core bobbin fitted in a central portion thereof and is displaced by magnetic interaction between an energizing coil wound around the bobbin and a permanent magnet disposed inside the air-core bobbin.

    摘要翻译： 一种磁记录和再现装置，用于从通过由主导轴驱动的行进记录在磁带上的轨道再现信息。 即使轨迹已经被记录成弯曲形式，磁头也与曲线对应地基本上垂直于旋转鼓的旋转轴线移动，以便跟踪轨迹。 由磁头从轨道读取的信号经受​​包络检测，并被转换为数字包络信号。 驱动和控制绞盘，使得数字包络信号的强度变得基本上达到最大值。 同时，将预先存储的磁头的理想扫描图案与数字包络信号进行比较，根据比较结果对理想扫描图案进行校正，磁头位于 大致垂直于旋转鼓的旋转轴线的方向，使得包络信号的强度变得基本上最大。 磁头固定在环形弹簧的突出部分上，空心线轴装配在其中心部分，并且通过缠绕在线轴上的激励线圈与设置在空心线轴内的永久磁铁之间的磁相互作用而移位 。

    Apparatus for automatically optimizing magnetic recording and playback
    27.
    发明授权
    Apparatus for automatically optimizing magnetic recording and playback 失效
    用于自动优化磁记录和播放的装置

    公开(公告)号：US5101309A

    公开(公告)日：1992-03-31

    申请号：US390370

    申请日：1989-08-07

    申请人： Yasuo Mitsuhashi

    发明人： Yasuo Mitsuhashi

    IPC分类号： G11B5/008 ,  G11B5/03 ,  G11B5/035 ,  G11B5/53 ,  H04N5/782 ,  H04N5/92

    CPC分类号： H04N5/782 ,  G11B5/0086 ,  G11B5/03 ,  G11B5/035 ,  G11B5/531 ,  H04N5/92

    摘要： While prior art apparatus for magnetic recording and playback (VTRs) were unable to perform magnetic recording of an FM signal with an optimum recording current responding to change of the optimum recording current dependent on kinds of magnetic tapes used and wear of heads, the magnetic recording of an FM signal with the optimum recording current at all times has been made possible by having a recorded signal along a track of a magnetic tape read by a level servo head scanning the track following the signal recording and having the recording current controlled to be optimized by use of a recording current controlling device based on the playback signal output from the level servo head. As a result, improvement of the S/N ratio and automatic adjustment of the recording current can be achieved. Further, by means of a head drive unit, the position of the level servo head is finely adjusted so that the control for optimization of the recording current is performed accurately.

    摘要翻译： 虽然用于磁记录和重放（VTR）的现有技术装置不能根据取决于使用的磁带的种类和磁头的磨损来响应于最佳记录电流的变化而对具有最佳记录电流的FM信号进行磁记录，磁记录 具有始终具有最佳记录电流的FM信号已经通过沿着沿着信号记录扫描轨道的电平伺服头读取的磁带的轨道上的记录信号成为可能，并且将记录电流控制为优化 通过使用基于从电平伺服磁头输出的重放信号的记录电流控制装置。 结果，可以实现S / N比的提高和记录电流的自动调整。 此外，通过头驱动单元，精细地调整液位伺服头的位置，从而精确地执行用于优化记录电流的控制。