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    • 4. 发明授权
    • Drum assembly for a magnetic recording and reproducing apparatus
    • 用于磁记录和再现装置的鼓组件
    • US4851935A
    • 1989-07-25
    • US50308
    • 1987-05-13
    • Sadahiro OhyamaYoshiaki MoritaYoshiaki UenoKazuhiro Tazawa
    • Sadahiro OhyamaYoshiaki MoritaYoshiaki UenoKazuhiro Tazawa
    • G11B5/02G11B5/53G11B15/12G11B33/12
    • G11B5/531G11B15/125G11B33/12G11B5/02
    • A drum assembly for carrying a plurality of rotary recording and reproducing heads of a magnetic recording and reproducing apparatus recording and reproducing a signal on and from a magnetic recording medium in a rotative manner. The drum assembly comprises a stationary drum fixed on a magnetic recording and reproducing apparatus body, a rotary body supported on the stationary drum in a rotative manner for carrying the plurality of rotary recording and reproducing heads, amplifying means disposed in the rotary body for amplifying the reproducing signal supplied from the plurality of rotary recording and reproducing heads, and signal transmitting means at an interface between the stationary drum and the rotary body for transmitting the recording signal from a recording and reproducing circuit to the plurality of rotary recording and reproducing heads and for transmitting the reproduced signal reproduced by the rotary recording and reproducing heads and amplified by the amplifying means to the recording and reproducing circuit.
    • 一种用于承载磁记录和再现装置的多个旋转记录和再现头的鼓组件,其以旋转的方式记录和从磁记录介质上再现信号。 滚筒组件包括固定在磁记录和再现装置主体上的固定滚筒,以旋转方式支撑在固定滚筒上用于承载多个旋转记录和再现头的旋转体,设置在旋转体中的放大装置,用于放大 从多个旋转记录和再现头提供的再现信号,以及信号传送装置,在固定鼓和旋转体之间的接口处,用于将记录信号从记录和再现电路传输到多个旋转记录和再现头,并且 发送由旋转记录和再现头再现的再现信号,并由放大装置放大到记录和再现电路。
    • 5. 发明授权
    • Printed circuit device
    • 印刷电路器件
    • US4437140A
    • 1984-03-13
    • US433729
    • 1982-10-12
    • Sadahiro OhyamaHiroshi KatoSadao YaguchiMikito BabaMorikazu Okada
    • Sadahiro OhyamaHiroshi KatoSadao YaguchiMikito BabaMorikazu Okada
    • H05K1/03H05K1/09H05K1/16H05K3/40H05K3/46H05K1/18
    • H05K3/4667H05K1/162H05K1/0306H05K1/092H05K1/167H05K2201/09672H05K2201/09809H05K3/4053H05K3/4605
    • A printed circuit device comprises a ceramic base plate and a circuit pattern layer which is constituted of electric conductor layers and insulating layers in alternate laminar stacked arrangement on one surface of the base plate, which layers are formed by alternately printing electrically conductive material and insulating material in predetermined patterns and subjecting the material thus printed to baking. Among the electric conductor layers, at least one layer serves as a wiring or conducting layer. At least two electric conductor layers confronting each other with the insulating layer interposed therebetween constitute a capacitor. Resistors are formed in the circuit pattern layer by printing the material of the resistor on an electrode layer applied beforehand to the surface of the electric conductor layer. Further, when required, circuit elements with lead terminals such as coils are disposed on one side of the base plate with the lead terminals thereof passed through the base plate and the circuit pattern layer to project from the other side, the projected part of the lead terminal being fixed to the opposite side of the base plate.
    • 一种印刷电路器件包括陶瓷基板和电路图案层,该电路图案层由在基板的一个表面上的交替层叠布置的导电层和绝缘层构成,这些层通过交替印刷导电材料和绝缘材料而形成 以预定图案并经过如此印刷的材料进行烘烤。 在导电体层之中,至少一层用作布线或导电层。 至少两个彼此面对的导电体层和绝缘层构成电容器。 电阻器通过在预先施加到电导体层的表面上的电极层上印刷电阻器的材料而形成在电路图案层中。 此外,当需要时,具有诸如线圈的引线端子的电路元件设置在基板的一侧,其引线端通过基板并且电路图案层从另一侧突出,引线的突出部分 端子固定到基板的相对侧。