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1. 发明授权

US11710599B2 Ceramic electronic device 有权
公开(公告)号：US11710599B2
公开(公告)日：2023-07-25
申请号：US17684944
申请日：2022-03-02
申请人： TDK CORPORATION
发明人： Toshihiro Iguchi , Yuichiro Sueda , Ryota Namiki , Yasuhiro Okui , Atsushi Watanabe
IPC分类号： H01G4/12 , H01G4/232 , H01G4/30
CPC分类号： H01G4/1209 , H01G4/2325 , H01G4/30
摘要： A ceramic electronic device includes an element body and an external electrode. The element body is formed by laminating a ceramic layer and an internal electrode layer. The external electrode is electrically connected to at least one end of the internal electrode layer. The external electrode includes a baked electrode layer. The baked electrode layer includes a first region and a second region. The first region is contacted with an end surface of the element body and located near a joint boundary with the element body. The second region is located outside the first region and constituting an outer surface of the baked electrode layer. The first region includes a first glass having a predetermined composition. The second region includes a second glass having a predetermined composition.

2. 发明授权

US12014879B2 Multilayer electronic component 有权
公开(公告)号：US12014879B2
公开(公告)日：2024-06-18
申请号：US17903302
申请日：2022-09-06
申请人： TDK CORPORATION
发明人： Toshihiro Iguchi , Yoshitaka Nagashima , Yasuhiro Okui , Masahide Ishizuya , Yuuki Hidaka
IPC分类号： H01G4/30 , H01G4/012 , H01G4/12
CPC分类号： H01G4/30 , H01G4/012 , H01G4/12
摘要： A multilayer electronic component includes a plurality of dielectric layers and a plurality of electrode layers that are alternately stacked. A skewness of a distribution of thicknesses of the plurality of dielectric layers at a plurality of arbitrary locations of the plurality of dielectric layers is 0.2 or more.

3. 发明公开

US20240258036A1 ELECTRONIC COMPONENT AND ELECTRONIC COMPONENT DEVICE 审中-公开
公开(公告)号：US20240258036A1
公开(公告)日：2024-08-01
申请号：US18522738
申请日：2023-11-29
申请人： TDK Corporation
发明人： Yuichi NAGAI , Ken Morita , Kyohei Takata , Yasuhiro Okui , Yoshitaka Nagashima
IPC分类号： H01G4/232 , H01G4/248 , H01G4/30
CPC分类号： H01G4/2325 , H01G4/248 , H01G4/30
摘要： An electronic component includes: an element body including first and second end surfaces opposing each other and a side surface coupling the first and second end surfaces; first and second internal conductors in the element body; a first external electrode on the first end surface; a second external electrode on the second end surface; and first and second external conductors on the side surface. The first and second external conductors are separated from the first and second external electrodes. The first internal conductor is electrically connected to the first external electrode and the first external conductor. The second internal conductor is electrically connected to the second external electrode and the second external conductor. The first external conductor is located between the first external electrode and the second external conductor. The second external conductor is located between the second external electrode and the first external conductor.

4. 发明授权

US09305708B2 Multilayer ceramic electronic device 有权
标题翻译：多层陶瓷电子器件
公开(公告)号：US09305708B2
公开(公告)日：2016-04-05
申请号：US14445894
申请日：2014-07-29
申请人： TDK Corporation
发明人： Nobutaka Kai , Yasuhiro Okui , Satoru Kindaichi , Hideki Kaneko , Tatsuya Kojima , Akitoshi Yoshii
IPC分类号： H01G4/12 , H01G4/30
CPC分类号： H01G4/1209 , H01G4/1218 , H01G4/1236 , H01G4/30
摘要： A multilayer ceramic electronic device comprising a lamination in which an internal electrode layer 3 and a dielectric layer 2 are laminated alternatively, wherein the dielectric layer 2 is comprised of a dielectric ceramic composition including a main component represented by a general formula of ABO3 and a rare-earth component R, and segregation phases 5 including the rare-earth component R are present in the dielectric layer 2. When the dielectric layer 2 is separated to six areas by dividing the dielectric layer 2 sandwiched by a pair of the internal dielectric layers 3 in the thickness direction, there are the R segregation phases present in two neighboring areas 2a respectively adjacent to the pair of the internal electrode layers 3 in the dielectric layer 3 at a ratio of double or more compared with the R segregation phases present in two central areas 2b located at a substantially center in the dielectric layer 2.
摘要翻译：一种多层陶瓷电子器件，包括层叠体，其中内部电极层3和电介质层2交替层叠，其中介电层2由包含由通式ABO 3表示的主要成分和稀有金属的介电陶瓷组合物组成 - 电介质层2中存在包含稀土类成分R的偏析相5.当通过将介电层2夹在一对内部电介质层3之间的介电层2分开来将电介质层2分离为6个区域时在厚度方向上，在与介电层3中的一对内部电极层3相邻的两个相邻区域2a中存在R偏析相，其比例为两倍以上，与存在于两个中心的R偏析相比较位于电介质层2中的大致中心的区域2b。

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