专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09919970B2 Dielectric material for multilayer ceramic capacitor, and multilayer ceramic capacitor 有权
公开(公告)号：US09919970B2
公开(公告)日：2018-03-20
申请号：US15364175
申请日：2016-11-29
申请人： TAIYO YUDEN CO., LTD.
发明人： Kunihiko Nagaoka , Kazumichi Hiroi , Minoru Ryu , Chie Kawamura
IPC分类号： C04B35/468 , H01G4/12 , H01G4/30 , H01G4/005
CPC分类号： C04B35/4682 , C01G23/006 , C01P2002/50 , C01P2002/52 , C01P2002/54 , C01P2002/74 , C01P2002/85 , C01P2004/62 , C01P2006/12 , C04B35/62675 , C04B2235/3215 , C04B2235/3224 , C04B2235/3232 , C04B2235/3236 , C04B2235/3239 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3418 , C04B2235/5409 , C04B2235/5445 , C04B2235/5454 , C04B2235/785 , H01G4/005 , H01G4/1227 , H01G4/30
摘要： Dielectric layers are prepared using a dielectric material that contains a ceramic powder having Ba, Ti, and additive element X which is solid-solubilized and is at least one element selected from the group consisting of Mo, Ta, Nb, and W, wherein the standard deviation of the ratio of the peak intensity of the additive element X (XKα) measured by STEM-EDX, and the sum of the peak intensity of the Ti and peak intensity of the Ba (BaLα+TiKα) measured by STEM-EDX, is less than 10.5% of the average ratio as measured at a total of five points including the three points that divide the maximum diameter of one grain of the ceramic powder into four equal parts, and two excluding the center point of the three points that divide the diameter crossing at right angles with the maximum diameter at its center point, into four equal parts.

2. 发明授权

US10388457B2 Multilayer ceramic capacitor 有权
公开(公告)号：US10388457B2
公开(公告)日：2019-08-20
申请号：US15655629
申请日：2017-07-20
申请人： TAIYO YUDEN CO., LTD.
发明人： Kunihiko Nagaoka , Noriyuki Chigira
IPC分类号： H01G4/12 , H01G4/30 , H01G4/248 , C04B35/468 , H01G4/012
摘要： A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrodes are alternately stacked and are alternately exposed to two edge faces of the multilayer structure; a first external electrode that is coupled to one of the two edge faces; and a second external electrode that is coupled to the other of the two edge faces, wherein: a main component of the plurality of ceramic dielectric layers is BaTiO3; the plurality of ceramic dielectric layers include a rare earth element; and an atomic concentration ratio of a total amount of Mn and V with respect to Ti in the plurality of ceramic dielectric layers is 0.035% or more and 0.120% or less.

3. 发明申请

US20150036264A1 MULTI-LAYER CERAMIC CAPACITOR 有权
标题翻译：多层陶瓷电容器
公开(公告)号：US20150036264A1
公开(公告)日：2015-02-05
申请号：US14389287
申请日：2012-11-13
申请人： TAIYO YUDEN CO., LTD.
发明人： Koichiro Morita , Tetsuo Shimura , Kunihiko Nagaoka
IPC分类号： H01G4/20 , H01G4/224 , H01G4/10 , H01G4/12
CPC分类号： H01G4/20 , C04B35/4682 , C04B35/64 , C04B2235/3206 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3244 , C04B2235/3262 , C04B2235/3418 , C04B2235/5445 , C04B2235/6025 , C04B2235/658 , C04B2235/6584 , C04B2235/663 , C04B2235/781 , C04B2235/785 , H01G4/10 , H01G4/1227 , H01G4/1236 , H01G4/224
摘要： A multi-layer ceramic capacitor has a structure where its dielectric layers are constituted by a sintered compact that contains a mol of ReO3/2, b mol of SiO2, c mol of MOx, d mol of ZrO2, and e mol of MgO (where Re is a rare earth element, M is a metal element (except for Ba, Ti, Re, Si, Zr, Mg, and rare earth elements), and x is a valance) per 100 mol of BaTiO3, and a, b, c, d, and e mentioned above which indicate the mol numbers of respective constituents per 100 mol of BaTiO3 are 0.1≦a≦1.0, 0.1≦b≦1.5, 0.1≦c≦0.4, 0≦d≦1.0, and 0≦e≦0.03, respectively.Provide a multi-layer ceramic capacitor that allows for high-density layering and still achieves improved reliability by means of suppressing the grain growth when the dielectric grains constituting the dielectric layers are sintered and thereby ensuring sufficient grain boundary, while also setting a high dielectric constant per unit grain size.A multi-layer ceramic capacitor where its dielectric layers are constituted by a sintered compact that contains a mol of ReO3/2, b mol of SiO2, c mol of MOx, d mol of ZrO2, and e mol of MgO (where Re is a rare earth element, M is a metal element (except for Ba, Ti, Re, Si, Zr, Mg, and rare earth elements), and x is a valance) per 100 mol of BaTiO3, and a, b, c, d, and e mentioned above which indicate the mol numbers of respective constituents per 100 mol of BaTiO3 are 0.1≦a≦1.0, 0.1≦b≦1.5, 0.1≦c≦0.4, 0≦d≦1.0, and 0≦e≦0.03, respectively.
摘要翻译：多层陶瓷电容器具有这样的结构，其电介质层由含有ReO 3/2摩尔，SiO 2的b摩尔，MO x的摩尔数，ZrO 2的d摩尔和MgO的e摩尔的烧结体构成 Re是稀土元素，M是每100摩尔BaTiO 3中的金属元素（Ba，Ti，Re，Si，Zr，Mg和稀土元素除外），x是价态），a，b， c，d和e表示每100摩尔BaTiO 3的各组分的摩尔数为0.1和nlE; a＆nlE; 1.0,0.1和nlE; b＆nlE; 1.5,0.1和nlE; c＆nlE; 0.4,0和nlE; d＆nlE; 1.0和 0＆nlE; e＆nlE; 0.03。提供一种多层陶瓷电容器，其可以通过在构成电介质层的电介质晶粒被烧结时抑制晶粒生长并且由此确保足够的晶界同时设定高的介电常数来实现高密度分层，并且仍然可以获得提高的可靠性每单位晶粒尺寸。一种多层陶瓷电容器，其电介质层由含有ReO 3/2摩尔，SiO 2的b摩尔，MOx的摩尔数，ZrO 2的d摩尔和MgO的摩尔数（其中Re为稀土元素，M是每100摩尔BaTiO 3中的金属元素（Ba，Ti，Re，Si，Zr，Mg和稀土元素除外），x是价），a，b，c，d 和上述e表示每100摩尔BaTiO 3的各组分的摩尔数为0.1和nlE; a＆nlE; 1.0,0.1和nlE; b＆nlE; 1.5,0.1和nlE; c＆nlE; 0.4,0和nlE; d＆nlE; 1.0和0＆ ; 0.03。

4. 发明授权

US11004609B2 Multilayer ceramic capacitor having certain interlayer insulation resistance 有权
公开(公告)号：US11004609B2
公开(公告)日：2021-05-11
申请号：US16250848
申请日：2019-01-17
申请人： TAIYO YUDEN CO., LTD.
发明人： Kunihiko Nagaoka , Noriyuki Chigira , Koichiro Morita
IPC分类号： H01G4/30 , H01G4/12 , H01G4/008
摘要： A multilayer ceramic capacitor includes: a ceramic multilayer structure having a structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrode layers are alternately stacked and are alternately exposed to two edge faces of the ceramic multilayer structure; and a pair of external electrodes that are formed on the two edge faces, wherein when an average value of insulation resistances of each pair of the internal electrode adjacent to each other in a stacking direction is IRave and a minimum value of the insulation resistances is IRmin, (IRave−IRmin)/IRave

5. 发明授权

US10242801B2 Multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor 有权
公开(公告)号：US10242801B2
公开(公告)日：2019-03-26
申请号：US15705044
申请日：2017-09-14
申请人： TAIYO YUDEN CO., LTD.
发明人： Kunihiko Nagaoka , Tomoaki Nakamura , Noriyuki Chigira
IPC分类号： H01G4/30 , H01G4/12 , H01G4/232 , H01G4/33 , H01G4/248 , H01G4/012
摘要： A multilayer ceramic capacitor includes: a first and a second external electrodes; internal electrode layers that are alternately connected to the first and the second external electrodes; and dielectric layers including a ceramic material as a main component, wherein a D20% diameter of the ceramic material of an end margin region, in which internal electrode layers connected to one of the first external electrode and the second external electrode face with each other and does not face with internal electrode layers connected to the other, is smaller than that of a capacity region in which internal electrode layers connected to different external electrodes face with each other and a D80% diameter of the ceramic material of the end margin region is larger than that of the capacity region, or 1/(log D80−log D20) of the ceramic material of the capacity region is larger than that of the end margin region.

6. 发明授权

US09287046B2 Multi-layer ceramic capacitor 有权
标题翻译：多层陶瓷电容
公开(公告)号：US09287046B2
公开(公告)日：2016-03-15
申请号：US14389287
申请日：2012-11-13
申请人： TAIYO YUDEN CO., LTD.
发明人： Koichiro Morita , Tetsuo Shimura , Kunihiko Nagaoka
IPC分类号： H01G4/10 , H01G4/12 , C04B35/468 , H01G4/20 , C04B35/64 , H01G4/224
CPC分类号： H01G4/20 , C04B35/4682 , C04B35/64 , C04B2235/3206 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3244 , C04B2235/3262 , C04B2235/3418 , C04B2235/5445 , C04B2235/6025 , C04B2235/658 , C04B2235/6584 , C04B2235/663 , C04B2235/781 , C04B2235/785 , H01G4/10 , H01G4/1227 , H01G4/1236 , H01G4/224
摘要： A multi-layer ceramic capacitor has a structure where its dielectric layers are constituted by a sintered compact that contains a mol of ReO3/2, b mol of SiO2, c mol of MOx, d mol of ZrO2, and e mol of MgO (where Re is a rare earth element, M is a metal element (except for Ba, Ti, Re, Si, Zr, Mg, and rare earth elements), and x is a valance) per 100 mol of BaTiO3, and a, b, c, d, and e mentioned above which indicate the mol numbers of respective constituents per 100 mol of BaTiO3 are 0.1≦a≦1.0, 0.1≦b≦1.5, 0.1≦c≦0.4, 0≦d≦1.0, and 0≦e≦0.03, respectively.
摘要翻译：多层陶瓷电容器具有这样的结构，其电介质层由含有ReO 3/2摩尔，SiO 2的b摩尔，MO x的摩尔数，ZrO 2的d摩尔和MgO的e摩尔的烧结体构成 Re是稀土元素，M是每100摩尔BaTiO 3中的金属元素（Ba，Ti，Re，Si，Zr，Mg和稀土元素除外），x是价态），a，b， c，d和e表示每100摩尔BaTiO 3的各组分的摩尔数为0.1和nlE; a＆nlE; 1.0,0.1和nlE; b＆nlE; 1.5,0.1和nlE; c＆nlE; 0.4,0和nlE; d＆nlE; 1.0和 0＆nlE; e＆nlE; 0.03。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式