中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

19 records (took 0.018 seconds)

    Dielectric membrane and dielectric element
    11.
    发明授权
    Dielectric membrane and dielectric element 有权

    公开(公告)号：US10991510B2

    公开(公告)日：2021-04-27

    申请号：US16359824

    申请日：2019-03-20

    Applicant: TDK CORPORATION

    Inventor： Saori Takahashi ,  Masahito Furukawa ,  Masamitsu Haemori ,  Hiroki Uchiyama ,  Wakiko Sato ,  Hitoshi Saita

    IPC: H01G4/33 ,  H01G4/12

    Abstract: A dielectric membrane may be exposed to an acid solution such as hydrochloric acid, nitric acid, or sulfuric acid during a wet process after membrane formation. The inventors have newly found that when a dielectric membrane includes Ca having a lower ionization tendency than Ba and Zr having a lower ionization tendency than Ti in a main component of a metal oxide expressed by a general formula (Ba, Ca)(Ti, Zr)O3 and satisfies at least one of degree of orientation of (100) plane>degree of orientation of (110) plane and degree of orientation of (111) plane>degree of orientation of (110) plane in a membrane thickness direction, the dielectric membrane is less likely to be damaged during a wet process, and the resistance to a wet process is improved.

    Piezoelectric composition and piezoelectric device
    16.
    发明授权
    Piezoelectric composition and piezoelectric device 有权
    压电组合和压电器件

    公开(公告)号：US09537083B2

    公开(公告)日：2017-01-03

    申请号：US14201515

    申请日：2014-03-07

    Applicant: TDK CORPORATION

    Inventor： Taku Masai ,  Masamitsu Haemori ,  Masahito Furukawa ,  Junichi Yamazaki ,  Kouhei Ohhashi

    IPC: H01L41/187 ,  C04B35/475 ,  H01L41/08 ,  H01L41/316

    CPC classification number: H01L41/1878 ,  C04B35/475 ,  H01L41/0805 ,  H01L41/316

    Abstract: Provided is a piezoelectric composition containing a major component that is a perovskite-type oxide which is represented by the general formula ABO3, which contains no Pb, and which has A-sites containing Bi, Na, and K and B-sites containing Ti. The Ti is partly substituted with a transition metal element Me that is at least one selected from the group consisting of Mn, Cr, Fe, and Co. The content of Bi and the transition metal element Me in the perovskite-type oxide, which is the major component, is 6 mole percent to 43 mole percent in terms of Biu1MeO3.

    Abstract translation: 本发明提供一种压电组合物，其含有主要成分为钙钛矿型氧化物，其由不含Pb的通式ABO3表示，具有含有Bi，Na，K的A位点和含有Ti的B位点。 Ti部分被选自Mn，Cr，Fe和Co中的至少一种的过渡金属元素Me所取代。钙钛矿型氧化物中Bi和过渡金属元素Me的含量为 主要组分按Biu1MeO3计为6摩尔％至43摩尔％。

    Dielectric film and dielectric element
    17.
    发明授权
    Dielectric film and dielectric element 有权
    介电膜和介电元件

    公开(公告)号：US09455087B2

    公开(公告)日：2016-09-27

    申请号：US14833614

    申请日：2015-08-24

    Applicant: TDK CORPORATION

    Inventor： Saori Takeda ,  Masahito Furukawa ,  Masanori Kosuda ,  Yuji Sezai

    IPC: C04B35/00 ,  H01G4/10 ,  H01G4/33 ,  H01G4/12 ,  H01G4/20

    CPC classification number: H01G4/10 ,  H01G4/1227 ,  H01G4/20 ,  H01G4/33

    Abstract: A dielectric film contains as a main component a dielectric composition represented by the general formula (Ba1-xCax)z(Ti1-yZry)O3 wherein 0.001≦x≦0.400, 0.001≦y≦0.400, and 0.900≦z

    Abstract translation: 介电膜含有作为主要成分的由通式（Ba1-xCax）z（Ti1-yZry）O3表示的电介质组合物，其中0.001≤x≤0.400,0.001≤y≤0.40,0.900≤z<0.995。 在介电组合物的X射线衍射图中，介电组合物在由通式表示的四方晶系的（001）面衍射峰位置2θt和（100）面之间具有0.00°≤2θc-2θt<0.20°的关系 由通式表示的立方结构的衍射峰位置2θc。

    Piezoelectric device
    19.
    发明授权
    Piezoelectric device 有权
    压电元件

    公开(公告)号：US09324931B2

    公开(公告)日：2016-04-26

    申请号：US13893865

    申请日：2013-05-14

    Applicant: TDK CORPORATION

    Inventor： Masahito Furukawa ,  Tomohisa Azuma ,  Taku Masai

    IPC: H01L41/187 ,  C04B35/00 ,  H01L41/047 ,  H01L41/08 ,  H01L41/313

    CPC classification number: H01L41/0477 ,  H01L41/0815 ,  H01L41/1873 ,  H01L41/313

    Abstract: A piezoelectric device includes a first electrode film, a piezoelectric film disposed on the first electrode film, and a second electrode film disposed on the piezoelectric film. At least one of the first and second electrode films is composed of an alloy, and a main component of the alloy is a metal selected from the group consisting of Ti, Al, Mg, and Zn. The piezoelectric film has a main composition represented by (K1-x-y-w-vNaxLiyBawSrv)m(Nb1-z-uTazZru)O3 (1), where x, y, z, w, v, u, and m in formula (1) satisfy 0.4

    Abstract translation: 压电装置包括第一电极膜，设置在第一电极膜上的压电膜和设置在压电膜上的第二电极膜。 第一电极膜和第二电极膜中的至少一个由合金构成，合金的主要成分为选自Ti，Al，Mg，Zn的金属。 压电膜具有由（K1-xyw-vNaxLiyBawSrv）m（Nb1-z-uTazZru）O3（1）表示的主要组成，其中式（1）中的x，y，z，w，v，u和m满足 0.4

Patent Agency Ranking