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    • 1. 发明授权
    • Optical deflector with a pneumatic and a magnetic bearing
    • 光学偏转器带有气动和磁性轴承
    • US4726640A
    • 1988-02-23
    • US911110
    • 1986-09-24
    • Akihiko IwamaHiroki TajimaMitsuo Suzuki
    • Akihiko IwamaHiroki TajimaMitsuo Suzuki
    • F16C39/06G02B7/182G02B26/12H02K5/16H02K7/09G02B26/08
    • F16C32/0402F16C17/026F16C32/0427G02B26/121G02B7/1821H02K5/1677H02K7/09F16C2370/22
    • An optical deflector for deflecting a laser beam from a laser by rotating a polygon mirror uses a dynamic pressure pneumatic bearing as a radial bearing and a magnetic bearing as a thrust bearing. The deflector includes a hollow rotor rotatable integrally with the mirror, a stationary shaft received in said hollow rotor, a casing member accommodating the rotor and stationary shaft, and an annular rotor magnet assembly mounted on the outer periphery of the rotor. A first rotary magnet is mounted in an upper end portion of a rotary shaft and a first stationary magnet in an upper end portion of the stationary shaft in such a manner as to face each other with the same polarity, a repulsive force acting between the two magnets serving as a thrust magnetic bearing. A second stationary magnet is arranged to face the first rotary magnet with the same polarity. Further, a second rotary magnet is mounted in a lower end portion of the rotary shaft and a third stationary magnet in a lower end portion of the stationary shaft in such a manner as to face each other with the same polarity.
    • 用于通过旋转多面镜从激光器偏转激光束的光学偏转器使用动压气动轴承作为径向轴承和磁轴承作为推力轴承。 偏转器包括与反射镜一体旋转的中空转子,容纳在所述中空转子中的固定轴,容纳转子和固定轴的壳体构件以及安装在转子的外周上的环形转子磁体组件。 第一旋转磁体以相同的极性彼此面对的方式安装在旋转轴的上端部和固定轴的上端部中的第一固定磁体,作用在两者之间的排斥力 磁铁作为推力磁轴承。 第二固定磁体被布置成以相同的极性面向第一旋转磁体。 此外,第二旋转磁体以相同极性彼此面对的方式安装在旋转轴的下端部和固定轴的下端部中的第三静止磁体。
    • 8. 发明授权
    • Ink jet print head
    • 喷墨打印头
    • US07997691B2
    • 2011-08-16
    • US12414827
    • 2009-03-31
    • Hiroki Tajima
    • Hiroki Tajima
    • B41J2/05
    • B41J2/1752B41J2/14024
    • An ink jet print head is provided which is highly reliable in recovering its performance by removing bubbles accumulated in the ink paths to reliably prevent print quality degradation in bi-directional printing. In the ink ejection member having an odd number of arrayed ink supply ports to supply ink to the ejection openings, the ink colors of the ink supply ports are arranged laterally symmetrically and a plurality of ink tanks are arranged side by side so that the direction of array of the ink supply ports is perpendicular to the direction of array of the ink tanks.
    • 提供了一种喷墨打印头,通过去除积聚在油墨通道中的气泡来可靠地防止双向打印中的打印质量劣化,可以高度可靠地恢复其性能。 在具有奇数个排列的供墨口以向喷射口供墨的喷墨部件中,油墨供给口的油墨颜色被横向对称地布置,并且多个墨盒被并排布置, 供墨口的阵列垂直于墨水盒阵列的方向。
    • 9. 发明申请
    • INK JET HEAD CARTRIDGE, PRINT HEAD, INK CONTAINER, AND METHOD FOR MANUFACTURING INK JET HEAD CARTRIDGE
    • 墨水喷头,打印头,墨盒和制造墨水喷头的方法
    • US20080136880A1
    • 2008-06-12
    • US11951454
    • 2007-12-06
    • Hiroki Tajima
    • Hiroki Tajima
    • B41J2/175
    • B41J2/1752B41J2/17513B41J2/1753B41J2/17553
    • Reliable ink jet print head, ink jet head cartridge, ink container, and the manufacture method thereof are provided. Specifically, an ink supply opening of an ink container includes a beam member crossing the ink supply opening. The beam member is shaped so that filler material included therein is oriented in a direction along which the beam member extends. By providing the beam member in the ink supply opening of the ink container, the deformation of the ink container due to a temperature change is prevented by the beam member having a smaller linear expansion coefficient that extends in a direction orthogonal to the nozzle arrangement direction. Thus, a more reliable ink jet print head can be provided. In addition, higher strength can be achieved in a direction orthogonal to the nozzle arrangement direction of the ink container.
    • 提供可靠的喷墨打印头,喷墨头墨盒,墨水容器及其制造方法。 具体而言,墨水容器的供墨口包括与供墨口相交的梁构件。 梁构件成形为使得包括在其中的填充材料沿着梁构件延伸的方向定向。 通过将光束构件设置在墨水容器的供墨口中,由于温度变化而导致的墨水容器的变形通过沿与喷嘴布置方向正交的方向延伸的线性膨胀系数较小的梁构件来防止。 因此,可以提供更可靠的喷墨打印头。 此外,可以在与油墨容器的喷嘴布置方向正交的方向上获得更高的强度。