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    • 1. 发明授权
    • Optical information recording/reproducing apparatus based on tracking control of irradiated light
    • 基于照射光的跟踪控制的光信息记录/再现装置
    • US06373797B1
    • 2002-04-16
    • US09689713
    • 2000-10-13
    • Masahiko TanakaKazuo Watabe
    • Masahiko TanakaKazuo Watabe
    • G11B700
    • G11B7/1381G11B7/0901G11B7/094G11B11/10576
    • An optical information recording/reproducing apparatus for optically recording/reproducing information by irradiating a track on a recording medium with a light comprises: a detecting circuit, a tracking error signal producing circuit, and a tracking control circuit. The detecting circuit selectively detects a circular area having a diameter smaller than a diameter of a light beam reflected from the recording medium and obtains an output signal corresponding to the detected circular area. The tracking error signal producing circuit produces, from the output signal of the detecting circuit, a tracking error signal indicating a shift in a position of a light beam irradiated on the recording medium in a track width direction. The tracking control circuit controls an irradiation position of a light beam irradiated on the recording medium in the track width direction based on the tracking error signal.
    • 一种用于通过用光照射记录介质上的轨道来光学地记录/再现信息的光学信息记录/再现装置包括:检测电路,跟踪误差信号产生电路和跟踪控制电路。 检测电路选择性地检测直径小于从记录介质反射的光束的直径的圆形区域,并获得对应于检测到的圆形区域的输出信号。 跟踪误差信号产生电路根据检测电路的输出信号产生跟踪误差信号,该跟踪误差信号指示在轨道宽度方向照射在记录介质上的光束的位置偏移。 跟踪控制电路基于跟踪误差信号来控制在轨道宽度方向上照射在记录介质上的光束的照射位置。
    • 7. 发明授权
    • Loop antenna and contactless IC card read/write apparatus
    • 环形天线和非接触式IC卡读/写设备
    • US07070101B2
    • 2006-07-04
    • US10885723
    • 2004-07-08
    • Futoshi DeguchiHiroshi YoshinagaMasahiko TanakaHiroaki Haruyama
    • Futoshi DeguchiHiroshi YoshinagaMasahiko TanakaHiroaki Haruyama
    • G06K7/08
    • G06K7/10336G06K7/10316
    • To provide a loop antenna capable of attenuating the distant electric field with the attenuation of the magnetic flux in the vicinity of an electromagnetic wave restrained, and a contactless IC card read/write apparatus.A loop antenna 10 has an electromagnetic wave shield 1 over at least one side of the loop antenna, the electromagnetic wave shield 1 comprising a plurality of electric conductors 2, a ground contact 3 for grounding the plurality of electric conductors and a lead wire 4 for connecting the plurality of electric conductors 2 to the ground contact 3. The plurality of electric conductors 2 are electrically connected via the lead wire 4 to the ground contact 3 and the plurality of electric conductors 2 are arranged so that the paths of the respective electric conductors 2 from any of their given points to the ground contact 3 via the lead wire 4 are determined uniformly.
    • 提供能够衰减受限制的电磁波附近的磁通的衰减的远距离电场的环形天线,以及非接触式IC卡读写装置。 环形天线10在环形天线的至少一侧具有电磁波屏蔽1,电磁波屏蔽1包括多个电导体2,用于使多个电导体接地的接地触头3和用于 将多个电导体2连接到接地触点3.多个电导体2经由引线4电连接到接地触点3,并且多个电导体2被布置成使得各个导体 均匀地确定了从它们给定的点到任何一个通过引线4到达接地触头3的2。
    • 8. 发明申请
    • Chemical vapor deposition apparatus and film deposition method
    • 化学气相沉积装置和薄膜沉积方法
    • US20050170090A1
    • 2005-08-04
    • US11047725
    • 2005-02-02
    • Masahiko Tanaka
    • Masahiko Tanaka
    • H01L21/205C23C16/00C23C16/455C23C16/458H01L21/285
    • C23C16/4583C23C16/45504C23C16/45521
    • A chemical vapor deposition apparatus has a vacuum processing chamber, a susceptor for holding a plurality of substrates each placed with a film deposition surface thereof facing downward; a heater disposed above the susceptor; a first barrier gas supply port for supplying a barrier gas to the upper surface of the susceptor; and a second barrier gas supply port for supplying the barrier gas to the upper surface of the heater. The barrier gas supplied from the first barrier gas supply port and the barrier gas supplied from the second barrier gas supply port have their flow rates controlled independently. By properly setting the ratio between the amount of the barrier gas supplied from the first barrier gas supply port and the amount of the barrier gas supplied from the second barrier gas supply port and the ratio between the amount of the barrier gas supplied and the amount of a raw material gas supplied, it becomes possible to form a film which is reduced in the number of particles adhered thereto.
    • 化学气相沉积装置具有真空处理室,用于保持多个基板的基座,每个基板的薄膜沉积表面面向下放置; 设置在基座上方的加热器; 用于向所述基座的上表面供给阻挡气体的第一阻挡气体供给口; 以及用于将阻挡气体供给到加热器的上表面的第二阻挡气体供给口。 从第一势垒气体供给口供给的阻挡气体和从第二势垒气体供给口供给的势垒气体,其流量独立地被控制。 通过适当地设定从第一势垒气体供给口供给的阻挡气体的量与从第二阻挡气体供给口供给的阻挡气体的量之间的比例与供给的阻隔气体的量之间的比例, 提供原料气体,可以形成减少附着于其上的颗粒数量的膜。