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    Piezoelectric resonator having mesa type piezoelectric vibrating element
    1.
    发明授权
    Piezoelectric resonator having mesa type piezoelectric vibrating element 有权
    具有台面型压电振动元件的压电谐振器

    公开(公告)号：US08638022B2

    公开(公告)日：2014-01-28

    申请号：US13952170

    申请日：2013-07-26

    Applicant: Seiko Epson Corporation

    Inventor： Go Yamashita ,  Kenji Komine ,  Shiro Murakami

    IPC: H01L41/08

    CPC classification number: H01L41/08 ,  H03H9/1021 ,  H03H9/19

    Abstract: A vibrating element includes: an element plate that has a vibrating portion that performs thickness-shear vibration, a peripheral portion that is integrally formed with the vibrating portion, and a protruding portion that is provided at the peripheral portion; and an excitation electrode that is provided at the vibrating portion. When a side length of the vibrating portion is Mx, when a side length of the excitation electrode is Ex, and when a wavelength of flexure vibrations of the element plate is λ, the relationship of (Mx−Ex)/2=λ/2, and Mx/2={(A/2)+(¼)}λ (where, A is a positive integer) is satisfied, and when a length of the protruding portion is Dx, and when a distance between the vibrating portion and the protruding portion is Sx, the relationship of Dx=λ/2)×m, and (λ/2)×n−0.1λ≦Sx≦(λ/2)×n+0.1λ (where m and n are positive integers) is satisfied.

    Abstract translation: 振动元件包括：具有执行厚度剪切振动的振动部分的元件板，与所述振动部分一体形成的周边部分和设置在所述周边部分的突出部分; 以及设置在振动部的激励电极。 当振动部分的边长为Mx时，当激励电极的边长为Ex时，当元件板的挠曲振动的波长为λ时，（Mx-Ex）/ 2 =λ/ 2 ，并且满足Mx / 2 = {（A / 2）+（¼）} lambda（其中，A为正整数），并且当突出部分的长度为Dx时，并且当振动部分与 突出部分是Sx，Dx =λ/ 2）×m和（λ/ 2）×n-0.1λ@ Sx @（λ/ 2）×n +0.1λ（其中m和n是正整数）的关系 ）满意

    Vibrator device, electronic apparatus, and vehicle
    2.
    发明授权
    Vibrator device, electronic apparatus, and vehicle 有权

    公开(公告)号：US11181371B2

    公开(公告)日：2021-11-23

    申请号：US16813807

    申请日：2020-03-10

    Applicant: Seiko Epson Corporation

    Inventor： Ryuta Nishizawa ,  Shiro Murakami ,  Keiichi Yamaguchi

    IPC: G01C19/5733

    Abstract: A vibrator device includes a base, a relay substrate supported by the base, and a vibrating element supported by the relay substrate, the relay substrate includes a base mount that is directly or indirectly fixed to the base, a vibrating element mount on which the vibrating element is mounted, and a beam that couples the base mount and the vibrating element mount, and parts of the vibrating element mount that are coupled to the vibrating element are positioned on both sides of the base mount while interposing the base mount therebetween in a plan view.

    Vibration device, angular velocity sensor, electronic device, and vehicle
    8.
    发明授权
    Vibration device, angular velocity sensor, electronic device, and vehicle 有权

    公开(公告)号：US10760908B2

    公开(公告)日：2020-09-01

    申请号：US15928472

    申请日：2018-03-22

    Applicant: Seiko Epson Corporation

    Inventor： Ryuta Nishizawa ,  Shiro Murakami ,  Keiichi Yamaguchi ,  Keiji Nakagawa

    IPC: G01C19/5621 ,  G01C19/5628 ,  G01C19/5656 ,  G01C19/5663 ,  G01C19/56 ,  B60G17/019

    Abstract: A vibration device includes a vibration element that has a plurality of terminals, a base that has a plurality of electrical connection terminals, and a board that has a wiring portion which electrically connects the plurality of electrical connection terminal and the plurality of terminals to each other, and that supports the vibration element with respect to the base. The board has a base fixing portion fixed to the base, a vibration element mounting portion on which the vibration element is mounted, and at least one beam portion which couples the base fixing portion and the vibration element mounting portion to each other. At least the one beam portion has a first portion which extends in a first direction and a second portion which extends in a second direction intersecting the first direction.

    Oscillator, electronic apparatus, and vehicle
    9.
    发明授权
    Oscillator, electronic apparatus, and vehicle 有权

    公开(公告)号：US10720886B2

    公开(公告)日：2020-07-21

    申请号：US16287037

    申请日：2019-02-27

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Naohisa Obata ,  Shinya Aoki ,  Shiro Murakami

    IPC: H03B5/04 ,  H03B5/36 ,  H03L1/02 ,  H03L1/04 ,  H01L23/04 ,  H01L23/00 ,  H01L23/20 ,  H01L25/16

    Abstract: An oscillator includes a resonation element, a temperature sensitive element, a first package that houses the resonation element and the temperature sensitive element and is airtightly sealed, and a second package that houses the first package and is airtightly sealed. The first package includes a first base having a first recessed portion that is provided on one main surface side and a first lid that is joined to the first base so as to close an opening of the first recessed portion. The second package includes a second base having a second recessed portion that is provided on one main surface side and a second lid that is joined to the second base so as to close an opening of the second recessed portion.

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