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    Piezoelectric resonator and electronic component containing same
    1.
    发明授权
    Piezoelectric resonator and electronic component containing same 失效
    压电谐振器和含有它的电子元件

    公开(公告)号：US5962956A

    公开(公告)日：1999-10-05

    申请号：US846295

    申请日：1997-04-30

    申请人： Toshihiko Unami ,  Takashi Yamamoto ,  Shigemasa Kusabiraki ,  Toshiyuki Baba ,  Tetsuo Takeshima ,  Hirohide Yoshino

    发明人： Toshihiko Unami ,  Takashi Yamamoto ,  Shigemasa Kusabiraki ,  Toshiyuki Baba ,  Tetsuo Takeshima ,  Hirohide Yoshino

    IPC分类号： H03H9/17 ,  H01L41/08 ,  H03H20060101 ,  H03H9/02 ,  H03H9/10 ,  H03H9/13 ,  H03H9/15 ,  H03H9/205 ,  H03H9/54 ,  H03H9/58 ,  H03H9/60

    CPC分类号： H03H9/178 ,  H03H9/02157 ,  H03H9/1014 ,  H03H9/605

    摘要： A piezoelectric resonator having a small spurious resonance, a large frequency difference .DELTA.F between the resonant frequency and the anti-resonant frequency, adjustable capacitance, and high design flexibility includes a base member formed by laminating, for example, a plurality of piezoelectric layers and internal electrodes. When the length, width, and thickness of the base member are indicated by L, W and T, respectively, the dimensions of the member are selected to satisfy the conditions of L.gtoreq.2W and L.gtoreq.2T. The base member is polarized at both ends of each internal electrode in opposite directions. A groove is preferably formed on one lateral surface of the base member, and at both sides of the groove, the internal electrodes are alternately covered with two insulating films. The two insulating films are respectively formed to cover the different internal electrodes. External electrodes are formed on both sides of the groove of the base member and are connected to the internal electrodes.

    摘要翻译： 具有小的寄生谐振，谐振频率和反谐振频率之间的大频差DELTA F，可调电容和高设计灵活性的压电谐振器包括通过层压例如多个压电层和 内部电极。 当基件的长度，宽度和厚度分别由L，W和T表示时，构件的尺寸被选择为满足L> / = 2W和L> / = 2T的条件。 基底构件在相反方向上在每个内部电极的两端处极化。 沟槽优选形成在基底构件的一个侧面上，并且在槽的两侧，内部电极交替地覆盖有两个绝缘膜。 这两个绝缘膜分别形成为覆盖不同的内部电极。 外部电极形成在基体的槽的两侧并连接到内部电极。

    Piezoelectric resonator and electronic component using the same
    3.
    发明授权
    Piezoelectric resonator and electronic component using the same 失效
    压电谐振器和使用其的电子元件

    公开(公告)号：US6091180A

    公开(公告)日：2000-07-18

    申请号：US120898

    申请日：1998-07-22

    申请人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda ,  Takeshi Yamazaki ,  Tetsuo Takeshima ,  Shigemasa Kusabiraki ,  Yutaka Kawai ,  Hirohide Yoshino

    发明人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda ,  Takeshi Yamazaki ,  Tetsuo Takeshima ,  Shigemasa Kusabiraki ,  Yutaka Kawai ,  Hirohide Yoshino

    IPC分类号： H03H9/10 ,  H03H9/17 ,  H03H9/205 ,  H03H9/58 ,  H03H9/60 ,  H01L41/08

    CPC分类号： H03H9/1014 ,  H03H9/178 ,  H03H9/605

    摘要： A piezoelectric resonator which vibrates in a longitudinal vibration mode includes first insulating films disposed on a side surface of a base member so as to cover at least part of exposed portions of a first group of the internal electrodes and second insulating films disposed on the side surface of the base member so as to cover at least part of the exposed portions of a second group of the internal electrodes. A first thin-film external electrode extends continuously in the longitudinal direction of the base member on the first insulating films and a second thin-film external electrode extends continuously in the longitudinal direction of the base member on the second insulating film. A first conductive resin film and a second conductive resin film are respectively provided on the first thin-film external electrode and the second thin-film external electrode such that even if the thin-film external electrodes are broken or damaged, the piezoelectric resonator still functions.

    摘要翻译： 以纵向振动模式振动的压电谐振器包括：第一绝缘膜，设置在基底构件的侧表面上，以覆盖第一组内部电极的暴露部分的至少一部分;以及设置在侧表面上的第二绝缘膜 以覆盖第二组内部电极的暴露部分的至少一部分。 第一薄膜外部电极在第一绝缘膜上沿着基底构件的纵向方向连续延伸，第二薄膜外部电极在第二绝缘膜上沿着基底构件的纵向方向连续延伸。 第一导电树脂膜和第二导电树脂膜分别设置在第一薄膜外部电极和第二薄膜外部电极上，使得即使薄膜外部电极被破坏或损坏，压电谐振器仍然起作用 。

    Piezoelectric resonator and electronic component including same
    5.
    发明授权
    Piezoelectric resonator and electronic component including same 有权
    压电谐振器和包括其的电子部件

    公开(公告)号：US6111343A

    公开(公告)日：2000-08-29

    申请号：US137173

    申请日：1998-08-20

    申请人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda

    发明人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda

    IPC分类号： H03H9/10 ,  H03H9/17 ,  H03H9/205 ,  H03H9/58 ,  H03H9/60 ,  H01L41/04

    CPC分类号： H03H9/178 ,  H03H9/1014 ,  H03H9/605

    摘要： A piezoelectric resonator includes a base member including a plurality of laminated piezoelectric layers and internal electrodes. The adjacent piezoelectric layers are polarized in different directions with an internal electrode disposed therebetween. A groove is provided on one lateral surface of the base member, and every other internal electrode is exposed at both sides of the groove. Insulating films are disposed on unexposed portions of the internal electrodes. External electrodes are provided on both sides of the groove in the base member and are connected to the internal electrodes. As a result of this structure, the piezoelectric resonator prevents a reduction in the difference .DELTA.F between the resonant frequency and the anti-resonant frequency.

    摘要翻译： 压电谐振器包括具有多个层叠压电层和内部电极的基底构件。 相邻的压电层在不同的方向上被极化，内部电极位于它们之间。 在基座的一个侧面上设置有槽，在槽的两侧露出另外的内部电极。 绝缘膜设置在内部电极的未曝光部分上。 外部电极设置在基体的槽的两侧并与内部电极连接。 作为这种结构的结果，压电谐振器防止谐振频率和反谐振频率之间的差ΔTA的减小。

    Piezoelectric resonator and electronic component including same
    6.
    发明授权
    Piezoelectric resonator and electronic component including same 失效
    压电谐振器和包括其的电子部件

    公开(公告)号：US6097134A

    公开(公告)日：2000-08-01

    申请号：US64327

    申请日：1998-04-22

    申请人： Shoichi Kawabata ,  Toshihiko Unami ,  Takashi Mizuguchi ,  Jiro Inoue ,  Mamoru Ogawa ,  Toshiyuki Baba ,  Toshio Nishimura

    发明人： Shoichi Kawabata ,  Toshihiko Unami ,  Takashi Mizuguchi ,  Jiro Inoue ,  Mamoru Ogawa ,  Toshiyuki Baba ,  Toshio Nishimura

    IPC分类号： H03H9/05 ,  H03H9/10 ,  H03H9/60 ,  H01L41/08

    CPC分类号： H03H9/1014 ,  H03H9/178 ,  H03H9/605

    摘要： A piezoelectric resonator having a small spurious resonance and a large difference .DELTA.F between the resonant frequency and the antiresonant frequency has a compact size and an external electrode has a structure which prevents damage or breaking of the external electrode. The piezoelectric resonator has a substantially rectangular-parallelepiped base member which includes a plurality of laminated piezoelectric layers. A middle portion of the piezoelectric layers is polarized in opposite directions relative to each other. On main surfaces of the middle part of the piezoelectric layers, first and second groups of inner electrodes and are exposed alternately at both side surfaces of the base member. On both side surfaces of the base member, first and second external electrodes are arranged so as to alternately connect to the first and second groups of inner electrodes.

    摘要翻译： 在谐振频率和反谐振频率之间具有小的寄生谐振和较大差ΔTA的压电谐振器具有紧凑的尺寸，并且外部电极具有防止外部电极损坏或断裂的结构。 压电谐振器具有大致矩形平行六面体的基体，其包括多个层压压电层。 压电层的中间部分相对于彼此在相反方向上极化。 在压电层的中间部分的主表面上，第一和第二组内部电极在基体的两个侧表面交替暴露。 在基体的两个侧表面上，第一和第二外部电极被布置成交替地连接到第一和第二组内部电极。

    Method of making a floating-type composite magnetic head provided with a magnetic core having concave mark(s) on side surface thereof
    7.
    发明授权
    Method of making a floating-type composite magnetic head provided with a magnetic core having concave mark(s) on side surface thereof 失效
    制造在其侧表面上具有凹痕的磁芯的浮动型复合磁头的制造方法

    公开(公告)号：US5481791A

    公开(公告)日：1996-01-09

    申请号：US150828

    申请日：1993-11-12

    申请人： Toshinori Matsubara ,  Toshiyuki Baba ,  Yasuo Kuriyama

    发明人： Toshinori Matsubara ,  Toshiyuki Baba ,  Yasuo Kuriyama

    IPC分类号： G11B5/127 ,  G11B5/187 ,  G11B5/31 ,  G11B5/60 ,  G11B5/42

    CPC分类号： G11B5/1871 ,  Y10T29/49048 ,  Y10T29/49764

    摘要： A magnetic core provided with one or more concave mark(s) with a depth of 2 um or less on at least one side surface of the magnetic core for a floating-type complex magnetic head, wherein the magnetic gap depth is controlled by machining the air bearing while observing a specific portion, from the direction perpendicular to the air bearing, of a concave mark or observing the level difference of specific portions of multiple concave marks provided on the side surface of the magnetic core in relation to the position of the apex of the magnetic core after cementing the magnetic core using glass filler inside a slit provided in the air bearing of a slider.

    摘要翻译： 一种磁芯，其在用于浮式复合磁头的磁芯的至少一个侧表面上设置有深度为2μm或更小的一个或多个凹痕，其中磁隙深度通过机械加工来控制 空气轴承，同时从垂直于空气轴承的方向观察特定部分的凹痕或观察设置在磁芯侧表面上的多个凹痕的特定部分的高度差相对于顶点的位置 使用玻璃填料将磁芯固定在设置在滑块的空气轴承中的狭缝内的磁芯。