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    Dielectric porcelain for use at high frequencies
    2.
    发明授权
    Dielectric porcelain for use at high frequencies 失效
    用于高频电介质瓷

    公开(公告)号：US5134101A

    公开(公告)日：1992-07-28

    申请号：US806602

    申请日：1991-12-12

    申请人： Akira Yamada ,  Toshihisa Honda ,  Yoshikazu Utsumi ,  Hisao Watarai

    发明人： Akira Yamada ,  Toshihisa Honda ,  Yoshikazu Utsumi ,  Hisao Watarai

    IPC分类号： C04B35/47 ,  C04B35/495

    CPC分类号： C04B35/495 ,  C04B35/47

    摘要： The improved dielectric porcelain for use at high frequencies is represented by the general formula:xSrO.multidot.yCaO.multidot.z[(1-m)TiO.sub.2 .multidot.m/2{TaO.sub.5/2 .multidot.(1-n)GaO.sub.3/2 .multidot.nGdO.sub.3/2 .music-sharp.][where 0.42.ltoreq.x.ltoreq.0.54 (or 0.06.ltoreq.x.ltoreq.0.18);0.06.ltoreq.y.ltoreq.0.18 (or 0.42.ltoreq.y.ltoreq.0.54);z=0.40;0.05.ltoreq.m.ltoreq.0.70;0.00.ltoreq.n.ltoreq.1.00;x+y=0.6]with Mn.sub.2 O.sub.3 being contained in an amount of up to 3 wt% of the total amount. The porcelain can be formulated from essentially similar basic compositions and yet it exhibits specific dielectric constants over a broad range on the order of 20-60 in the microwave frequency region and, at the same time, it has commerically acceptable high values of Q factor as well as stable and small temperature coefficients of dielectric constant.

    摘要翻译： 在高频下使用的改进的电介质陶瓷由以下通式表示：xSrOxyCaOxz [（1-m）TiO2xm / 2 {TaO5 / 2x（1-n）GaO3 / 2xnGdO3 / 2＆musics＆] [其中0.42

    Film bulk acoustic wave device
    6.
    发明授权
    Film bulk acoustic wave device 失效
    薄膜体声波装置

    公开(公告)号：US5789845A

    公开(公告)日：1998-08-04

    申请号：US559706

    申请日：1995-11-15

    申请人： Shusou Wadaka ,  Koichiro Misu ,  Tsutomu Nagatsuka ,  Tomonori Kimura ,  Shunpei Kameyama ,  Chisako Maeda ,  Akira Yamada ,  Toshihisa Honda

    发明人： Shusou Wadaka ,  Koichiro Misu ,  Tsutomu Nagatsuka ,  Tomonori Kimura ,  Shunpei Kameyama ,  Chisako Maeda ,  Akira Yamada ,  Toshihisa Honda

    IPC分类号： H03B5/32 ,  H03F3/195 ,  H03H9/00 ,  H03H9/02 ,  H03H9/05 ,  H03H9/17 ,  H03H9/19 ,  H01L29/66

    CPC分类号： H03H9/174 ,  H03B5/326 ,  H03F3/195 ,  H03H9/02228 ,  H03H9/0542 ,  H03H9/173 ,  H03H9/176 ,  H03H2003/0464

    摘要： Embodiments of the present invention provide a small and well-characterized bulk acoustic wave device by fabricating a filter having a wide band width or a resonator having a wide oscillation frequency range together with a semiconductor circuit. In embodiments of the present invention, a bulk acoustic wave device comprises a semiconductor substrate having a dielectric substance layer thereon, the dielectric substance layer has a ground conductor layer thereon, the ground conductor layer has a piezoelectric ceramic thin film thereon and the piezoelectric ceramic thin film has a conductive electrode pattern thereon. The thickness of the piezoelectric ceramic thin film is more than ten times the thickness of the ground conductor layer, and the wave number of acoustic waves that propagate in a direction parallel to a surface of the piezoelectric ceramic thin film multiplied by the thickness of the piezoelectric ceramic thin film is less than 2.

    摘要翻译： 本发明的实施例通过制造具有宽带宽的滤波器或具有宽的振荡频率范围的谐振器以及半导体电路来提供小型且良好表征的体声波器件。 在本发明的实施例中，体声波装置包括其上具有电介质层的半导体衬底，电介质层上具有接地导体层，接地导体层上具有压电陶瓷薄膜，压电陶瓷薄片 膜上具有导电电极图案。 压电陶瓷薄膜的厚度是接地导体层的厚度的十倍以上，并且在与压电陶瓷薄膜的表面平行的方向上传播的声波的波数乘以压电陶瓷薄膜的厚度 陶瓷薄膜小于2。

    Tread unit of passenger conveyer and passenger conveyer system
    7.
    发明授权
    Tread unit of passenger conveyer and passenger conveyer system 有权
    乘客输送机和乘客输送系统的踏板单元

    公开(公告)号：US06241071B1

    公开(公告)日：2001-06-05

    申请号：US09403313

    申请日：1999-10-20

    申请人： Shu Yamashita ,  Toshihisa Honda ,  Yasumasa Haruta ,  Akira Noshita ,  Noboru Hiroshima ,  Kunihiko Murayama

    发明人： Shu Yamashita ,  Toshihisa Honda ,  Yasumasa Haruta ,  Akira Noshita ,  Noboru Hiroshima ,  Kunihiko Murayama

    IPC分类号： B66B2312

    CPC分类号： B66B23/12

    摘要： A tread unit of a passenger conveyor includes: a tread, a tread reinforcing member and a riser which are made of fiber reinforced plastic made by knitting fibers together. The surfaces of the cleat portions of the tread and the riser are provided with surface treated layers in which the wear resistance and coefficient of friction are controlled. As a result of this construction, the aesthetic design of the tread unit and of the passenger conveyor system can be improved. In addition, the reduced weight of the tread unit contributes to labor-saving at the time of mounting, and a passenger conveyor system using these tread units can be reduced in size and weight as a whole.

    摘要翻译： 乘客输送机的胎面单元包括：胎面，胎面加强构件和立管，其由通过编织纤维在一起制成的纤维增强塑料制成。 胎面和提升管的防滑板部分的表面设置有表面处理层，其中耐磨性和摩擦系数被控制。 作为这种结构的结果，可以提高胎面单元和乘客输送机系统的美学设计。 此外，胎面单元的重量减轻在安装时有助于节省劳动力，并且使用这些踏板单元的乘客输送机系统整体上可以减小尺寸和重量。