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    Multilayer ceramic electronic component
    1.
    发明授权
    Multilayer ceramic electronic component 有权

    公开(公告)号：US11107632B2

    公开(公告)日：2021-08-31

    申请号：US16520741

    申请日：2019-07-24

    Applicant: TDK CORPORATION

    Inventor： Toshio Sakurai ,  Hirobumi Tanaka ,  Keisuke Okai ,  Daisuke Iwanaga ,  Hisashi Nakata ,  Tomoya Sihbasaki

    IPC: H01G4/232 ,  H01G4/30 ,  H01G4/258

    Abstract: A multilayer ceramic electronic component includes an element body and a terminal electrode. The element body includes internal electrode layers and insulation layers alternately laminated in a lamination direction. The terminal electrode is formed on an outer surface of the element body to be contacted and connected with the internal electrode layers. The terminal electrode includes an end-side electrode part and an upper-side electrode part. The end-side electrode part covers a leading end of the element body where the internal electrode layers are led. The upper-side electrode part is formed on a part of an upper surface of the element body and continues to the end-side electrode part. The terminal electrode is not substantially formed on a lower surface of the element body located on the other side of the upper surface along the lamination direction.

    Transmission line and electronic component
    2.
    发明授权
    Transmission line and electronic component 有权

    公开(公告)号：US09698464B2

    公开(公告)日：2017-07-04

    申请号：US14789261

    申请日：2015-07-01

    Applicant: TDK CORPORATION

    Inventor： Takashi Fukui ,  Kiyoshi Hatanaka ,  Toshio Sakurai ,  Shigemitsu Tomaki

    IPC: H01P7/00 ,  H01P7/10

    CPC classification number: H01P7/10

    Abstract: A transmission line is provided with a line portion with a first relative permittivity which is composed of a first dielectric and a conductor filler dispersed in the first dielectric, and a surrounding dielectric portion composed of a second dielectric with a second relative permittivity, wherein, the surrounding dielectric portion exists around the line portion in a cross section perpendicular to a direction in which electromagnetic waves transmit in the line portion, the first relative permittivity is 600 or more, and the second relative permittivity is smaller than the first relative permittivity. An electronic component has the transmission line. Further, an electronic component is provided with a resonator having a resonant frequency ranging from 1 GHz to 10 GHz, wherein, the resonator is formed by using the transmission line.

    Dielectric line and electronic component
    3.
    发明授权
    Dielectric line and electronic component 有权

    公开(公告)号：US09601816B2

    公开(公告)日：2017-03-21

    申请号：US14340880

    申请日：2014-07-25

    Applicant: TDK CORPORATION

    Inventor： Shigemitsu Tomaki ,  Tomoaki Kawata ,  Kiyoshi Hatanaka ,  Toshio Sakurai ,  Yasunori Sakisaka

    IPC: H01P7/00 ,  H01P1/20 ,  H01P7/10 ,  H01P3/16

    CPC classification number: H01P1/2002 ,  H01P3/16 ,  H01P7/10

    Abstract: A dielectric line includes a line portion and a surrounding dielectric portion. The line portion is formed of a first dielectric having a first relative permittivity. The surrounding dielectric portion is formed of a second dielectric having a second relative permittivity. The line portion propagates one or more electromagnetic waves of one or more frequencies within the range of 1 to 10 GHz. In a cross section orthogonal to the direction of propagation of the one or more electromagnetic waves through the line portion, the surrounding dielectric portion is present around the line portion. The first relative permittivity is 1,000 or higher. The second relative permittivity is lower than the first relative permittivity.

    Dielectric ceramic composition
    5.
    发明授权
    Dielectric ceramic composition 有权
    介电陶瓷组合物

    公开(公告)号：US08841226B2

    公开(公告)日：2014-09-23

    申请号：US13677763

    申请日：2012-11-15

    Applicant: TDK Corporation

    Inventor： Raitarou Masaoka ,  Toshio Sakurai ,  Tomohiro Arashi ,  Kyung-Ku Choi ,  Kiyoshi Hatanaka

    IPC: C04B35/468 ,  C04B35/20

    CPC classification number: C04B35/462 ,  C03C14/00 ,  C04B35/20 ,  C04B35/468 ,  C04B35/62685 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3234 ,  C04B2235/3236 ,  C04B2235/3284 ,  C04B2235/3409 ,  C04B2235/3445 ,  C04B2235/36 ,  C04B2235/77 ,  H01G4/1227

    Abstract: A dielectric ceramic composition includes a component represented by composition formula {α(xBaO.yNd2O3.zTiO2)+β(2MgO.SO2)} as a main component and zinc oxide, boron oxide, and a glass having a softening point equal to or lower than a certain temperature as minor components with respect to the main component. In the dielectric ceramic composition, x, y, and z that respectively represent molar ratios of BaO, Nd2O3, and TiO2 are in certain ranges and α and β that represent volume ratios of subcomponents (xBaO.yNd2O3.zTiO2 and 2MgO.SiO2) in the main component are in certain ranges. When the minor components are respectively represented by aZnO, bB2O3, and cglass, a, b, and c that represent mass ratios of the respective minor components to the main component are in certain ranges.

    Abstract translation: 电介质陶瓷组合物包含由组成式{α（xBaO.yNd2O3.zTiO2）+＆bgr（（2MgO.SO2）}）表示的组分作为主要成分，氧化锌，氧化硼和软化点等于或等于 低于相对于主要组分的次要组分的一定温度。 在介电陶瓷组合物中，分别表示BaO，Nd2O3和TiO2的摩尔比的x，y和z在一定范围内，α和bgr; 表示主要成分中的子成分（xBaO.yNd2O3.zTiO2和2MgO.SiO2）的体积比在一定范围内。 当次要组分分别由ZnO，bB 2 O 3和C玻璃表示时，表示各个次要组分与主要组分的质量比的a，b和c在一定范围内。

    Multi-layer ceramic electronic device
    6.
    发明授权
    Multi-layer ceramic electronic device 有权

    公开(公告)号：US11476049B2

    公开(公告)日：2022-10-18

    申请号：US16668050

    申请日：2019-10-30

    Applicant: TDK CORPORATION

    Inventor： Toshio Sakurai ,  Hirobumi Tanaka ,  Keisuke Okai ,  Daisuke Iwanaga ,  Hisashi Nakata ,  Tomoya Shibasaki

    IPC: H01G4/224 ,  H01G4/30 ,  H01G4/232 ,  H01G4/248 ,  H01G4/012 ,  H01G4/12

    Abstract: A multi-layer ceramic electronic device includes an element body and terminal electrodes. The terminal electrodes include end electrode parts covering ends of the element body in which internal electrode layers are led and upper electrode parts continuing to the end electrode parts and each partially covering an upper surface of the element body in a lamination direction. An upper-surface cover layer covering the upper surface of the element body located between the upper electrode parts has an external surface substantially flush with external surfaces of the upper electrode parts. The terminal electrodes are not substantially formed on a lower surface of the element body located opposite to the upper surface of the element body in the lamination direction.

    Transmission line and electronic component
    9.
    发明授权
    Transmission line and electronic component 有权

    公开(公告)号：US09647316B2

    公开(公告)日：2017-05-09

    申请号：US14789294

    申请日：2015-07-01

    Applicant: TDK CORPORATION

    Inventor： Toshio Sakurai ,  Kiyoshi Hatanaka ,  Takashi Fukui ,  Shigemitsu Tomaki

    IPC: H01P7/10 ,  H01P3/16

    CPC classification number: H01P7/10 ,  H01P3/16

    Abstract: A transmission line and an electronic component including a resonator using the transmission line are provided. The transmission line is capable of transmitting electromagnetic waves of at least one frequency ranging from 1 GHz to 10 GHz and is composed of a first dielectric with a first relative permittivity and a surrounding dielectric portion composed of a second dielectric with a second relative permittivity, wherein, the first dielectric is represented by a formula of {XBaO.(1−X)SrO}TiO2 (0.25

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