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1. 发明授权

US08420559B2 Multilayer ceramic capacitor 有权
标题翻译：多层陶瓷电容器
公开(公告)号：US08420559B2
公开(公告)日：2013-04-16
申请号：US12934635
申请日：2009-03-24
申请人： Masahiro Nishigaki , Hideyuki Osuzu , Jun Ueno , Hiroaki Mino
发明人： Masahiro Nishigaki , Hideyuki Osuzu , Jun Ueno , Hiroaki Mino
IPC分类号： H01G4/12 , C04B35/468
CPC分类号： H01G4/1227 , H01G4/30
摘要： Disclosed is a multilayer ceramic capacitor which is formed by alternately laminating (i) dielectric layers composed of a dielectric ceramic and (ii) internal electrode layers. The dielectric ceramic is composed of crystal grains mainly composed of barium titanate, while containing predetermined amounts of magnesium, vanadium, manganese and terbium, and at least one rare earth element selected from yttrium, dysprosium, holmium and erbium. In an x-ray diffraction chart of the dielectric ceramic, the diffraction intensity of the (200) plane indicating cubic barium titanate is higher than the diffraction intensity of the (002) plane indicating tetragonal barium titanate. The dielectric ceramic has a Curie temperature of 110-120° C.
摘要翻译：公开了通过交替层叠（i）由电介质陶瓷构成的电介质层和（ii）内部电极层而形成的多层陶瓷电容器。电介质陶瓷由主要由钛酸钡组成的晶粒组成，同时含有预定量的镁，钒，锰和铽，以及至少一种选自钇，镝，钬和铒的稀土元素。在电介质陶瓷的X射线衍射图中，表示立方钛酸钡的（200）面的衍射强度高于表示四方钛酸钡的（002）面的衍射强度。介电陶瓷的居里温度为110-120℃

2. 发明授权

US07706125B2 Multilayer ceramic capacitor and production method of the same 有权
标题翻译：多层陶瓷电容器及其制作方法相同
公开(公告)号：US07706125B2
公开(公告)日：2010-04-27
申请号：US11909713
申请日：2006-03-17
申请人： Daisuke Fukuda , Kiyoshi Matsubara , Masahiro Nishigaki
发明人： Daisuke Fukuda , Kiyoshi Matsubara , Masahiro Nishigaki
IPC分类号： H01G4/06
CPC分类号： H01G4/1281 , C04B35/4682 , C04B35/62685 , C04B35/62805 , C04B35/6281 , C04B35/62815 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3236 , C04B2235/3262 , C04B2235/3418 , C04B2235/3436 , C04B2235/36 , C04B2235/5409 , C04B2235/5445 , C04B2235/6025 , C04B2235/652 , C04B2235/656 , C04B2235/6562 , C04B2235/6565 , C04B2235/663 , C04B2235/72 , C04B2235/762 , C04B2235/765 , C04B2235/784 , C04B2235/785 , C04B2235/79 , C04B2235/80 , C04B2235/85 , H01G4/1227 , H01G4/30 , Y10T29/435
摘要： The invention provides a multilayer ceramic capacitor comprising a capacitor body composed by alternately layering dielectric layers and inner electrode layers. Accordingly, the multilayer ceramic capacitor has high relative permittivity and is high the temperature property and highly accelerated life test property.
摘要翻译：本发明提供了一种多层陶瓷电容器，其包括通过交替层叠电介质层和内部电极层而构成的电容器主体。因此，多层陶瓷电容器具有高的相对介电常数，并且具有高的温度特性和高加速的寿命测试特性。

3. 发明授权

US07433173B2 Multilayer ceramic capacitor and method for manufacturing the same 有权
标题翻译：多层陶瓷电容器及其制造方法
公开(公告)号：US07433173B2
公开(公告)日：2008-10-07
申请号：US11285462
申请日：2005-11-22
申请人： Kenichi Iwasaki , Daisuke Fukuda , Masahiro Nishigaki , Kiyoshi Matsubara , Kousei Kamigaki
发明人： Kenichi Iwasaki , Daisuke Fukuda , Masahiro Nishigaki , Kiyoshi Matsubara , Kousei Kamigaki
IPC分类号： H01G4/06
CPC分类号： C04B35/4682 , B32B2311/22 , C04B35/49 , C04B35/62665 , C04B35/62805 , C04B35/6281 , C04B35/62815 , C04B35/6303 , C04B35/64 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3244 , C04B2235/3262 , C04B2235/36 , C04B2235/5445 , C04B2235/6025 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/663 , C04B2235/72 , C04B2235/782 , C04B2235/785 , C04B2235/79 , C04B2235/85 , C04B2237/346 , C04B2237/405 , H01G4/1218 , H01G4/1227
摘要： Provided is a multilayer ceramic capacitor having a capacitor body formed by alternately laminating a dielectric layer and an internal electrode layer, and an external electrode formed on both ends of the capacitor body. The dielectric layer has at least two type of barium titanate crystal grains that differ from one another in at least one selected from Ca composition concentration, Sr composition concentration, and Zr composition concentration, and a grain boundary phase. If this multilayer ceramic capacitor employs, as a dielectric layer, a dielectric ceramic that contains barium titanate crystal grains in which part of Ba is substituted by Ca, Sr, or Zr, it is capable of suppressing the grain growth of crystal grains, and improving relative dielectric constant, temperature characteristic, and high-temperature load test characteristic, for example, in high-volume manufacturing using a tunnel type large kiln.
摘要翻译：提供一种具有通过交替层叠电介质层和内部电极层而形成的电容器主体的多层陶瓷电容器，以及形成在电容器本体的两端的外部电极。介电层具有至少两种选自Ca组成浓度，Sr组成浓度，Zr组分浓度和晶界相中至少一种彼此不同的钛酸钡晶粒。如果该多层陶瓷电容器使用含有Ba的一部分被Ca，Sr或Zr取代的钛酸钡晶体的电介质陶瓷，则能够抑制晶粒的晶粒生长，并且提高相对介电常数，温度特性和高温负荷试验特性，例如在使用隧道式大窑的大批量制造中。

4. 发明申请

US20100002360A1 DIELECTRIC CERAMICS AND CAPACITOR 有权
标题翻译：电介质陶瓷和电容器
公开(公告)号：US20100002360A1
公开(公告)日：2010-01-07
申请号：US12559360
申请日：2009-09-14
申请人： Katsuyoshi YAMAGUCHI , Masahiro Nishigaki
发明人： Katsuyoshi YAMAGUCHI , Masahiro Nishigaki
IPC分类号： C04B35/468 , H01G4/12
CPC分类号： H01G4/1227 , B82Y30/00 , C01G23/006 , C01P2002/50 , C01P2002/52 , C01P2002/72 , C01P2004/62 , C01P2004/64 , C01P2006/40 , C04B35/4682 , C04B35/62685 , C04B2235/3203 , C04B2235/3206 , C04B2235/3225 , C04B2235/3236 , C04B2235/3251 , C04B2235/3262 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/5454 , C04B2235/656 , C04B2235/762 , C04B2235/785 , C04B2235/786 , C04B2235/79 , C04B2235/85 , H01B3/12 , H01G4/30
摘要： A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit.
摘要翻译：公开了一种介电陶瓷和包括介电陶瓷的电容器。介电陶瓷具有高温稳定的高介电常数，并具有小的自发极化。电容器可以降低由电源电路中的电感应变引起的可闻噪声。

5. 发明申请

US20090059471A1 Multilayer Ceramic Capacitor and Production Method of the Same 有权
标题翻译：多层陶瓷电容器及其制作方法
公开(公告)号：US20090059471A1
公开(公告)日：2009-03-05
申请号：US11909713
申请日：2006-03-17
申请人： Daisuke Fukuda , Kiyoshi Matsubara , Masahiro Nishigaki
发明人： Daisuke Fukuda , Kiyoshi Matsubara , Masahiro Nishigaki
IPC分类号： H01G4/12 , C04B35/64
CPC分类号： H01G4/1281 , C04B35/4682 , C04B35/62685 , C04B35/62805 , C04B35/6281 , C04B35/62815 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3236 , C04B2235/3262 , C04B2235/3418 , C04B2235/3436 , C04B2235/36 , C04B2235/5409 , C04B2235/5445 , C04B2235/6025 , C04B2235/652 , C04B2235/656 , C04B2235/6562 , C04B2235/6565 , C04B2235/663 , C04B2235/72 , C04B2235/762 , C04B2235/765 , C04B2235/784 , C04B2235/785 , C04B2235/79 , C04B2235/80 , C04B2235/85 , H01G4/1227 , H01G4/30 , Y10T29/435
摘要： The invention provides a multilayer ceramic capacitor comprising a capacitor body composed by alternately layering dielectric layers and inner electrode layers, and each of the above mentioned dielectric layers contains a plurality of crystal particles, and grain boundary phases comprising interfacial grain boundaries and triple point grain boundaries formed among a plurality of the crystal particles adjacent to one another, and Si—Ba—O compound being formed in 5% or more of the triple point grain boundaries in the entire triple point grain boundaries per unit surface area of the dielectric layer. Accordingly, the multilayer ceramic capacitor has high relative permittivity and is high the temperature property and highly accelerated life test property.
摘要翻译：本发明提供一种多层陶瓷电容器，其包括通过交替层叠电介质层和内部电极层而构成的电容器体，并且上述每个电介质层包含多个晶体颗粒，并且包含界面晶界和三点晶界的晶界相形成在彼此相邻的多个晶体颗粒中，并且Si-Ba-O化合物形成在电介质层的每单位表面积的整个三重点晶界的三重点晶界的5％以上。因此，多层陶瓷电容器具有高的相对介电常数，并且具有高的温度特性和高加速的寿命测试特性。

6. 发明申请

US20060114641A1 Multilayer ceramic capacitor and method for manufacturing the same 有权
标题翻译：多层陶瓷电容器及其制造方法
公开(公告)号：US20060114641A1
公开(公告)日：2006-06-01
申请号：US11285462
申请日：2005-11-22
申请人： Kenichi Iwasaki , Daisuke Fukuda , Masahiro Nishigaki , Kiyoshi Matsubara , Kousei Kamigaki
发明人： Kenichi Iwasaki , Daisuke Fukuda , Masahiro Nishigaki , Kiyoshi Matsubara , Kousei Kamigaki
IPC分类号： H01G4/06 , C04B35/48
CPC分类号： C04B35/4682 , B32B2311/22 , C04B35/49 , C04B35/62665 , C04B35/62805 , C04B35/6281 , C04B35/62815 , C04B35/6303 , C04B35/64 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3244 , C04B2235/3262 , C04B2235/36 , C04B2235/5445 , C04B2235/6025 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/663 , C04B2235/72 , C04B2235/782 , C04B2235/785 , C04B2235/79 , C04B2235/85 , C04B2237/346 , C04B2237/405 , H01G4/1218 , H01G4/1227
摘要： Provided is a multilayer ceramic capacitor having a capacitor body formed by alternately laminating a dielectric layer and an internal electrode layer, and an external electrode formed on both ends of the capacitor body. The dielectric layer has at least two type of barium titanate crystal grains that differ from one another in at least one selected from Ca composition concentration, Sr composition concentration, and Zr composition concentration, and a grain boundary phase. If this multilayer ceramic capacitor employs, as a dielectric layer, a dielectric ceramic that contains barium titanate crystal grains in which part of Ba is substituted by Ca, Sr, or Zr, it is capable of suppressing the grain growth of crystal grains, and improving relative dielectric constant, temperature characteristic, and high-temperature load test characteristic, for example, in high-volume manufacturing using a tunnel type large kiln.
摘要翻译：提供一种具有通过交替层叠电介质层和内部电极层而形成的电容器主体的多层陶瓷电容器，以及形成在电容器本体的两端的外部电极。介电层具有至少两种选自Ca组成浓度，Sr组成浓度，Zr组分浓度和晶界相中至少一种彼此不同的钛酸钡晶粒。如果该多层陶瓷电容器使用含有Ba的一部分被Ca，Sr或Zr取代的钛酸钡晶体的电介质陶瓷，则能够抑制晶粒的晶粒生长，并且提高相对介电常数，温度特性和高温负荷试验特性，例如在使用隧道式大窑的大批量制造中。

7. 发明授权

US08097552B2 Dielectric ceramics and capacitor 有权
标题翻译：介电陶瓷和电容器
公开(公告)号：US08097552B2
公开(公告)日：2012-01-17
申请号：US12559360
申请日：2009-09-14
申请人： Katsuyoshi Yamaguchi , Masahiro Nishigaki
发明人： Katsuyoshi Yamaguchi , Masahiro Nishigaki
IPC分类号： C04B35/468
CPC分类号： H01G4/1227 , B82Y30/00 , C01G23/006 , C01P2002/50 , C01P2002/52 , C01P2002/72 , C01P2004/62 , C01P2004/64 , C01P2006/40 , C04B35/4682 , C04B35/62685 , C04B2235/3203 , C04B2235/3206 , C04B2235/3225 , C04B2235/3236 , C04B2235/3251 , C04B2235/3262 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/5454 , C04B2235/656 , C04B2235/762 , C04B2235/785 , C04B2235/786 , C04B2235/79 , C04B2235/85 , H01B3/12 , H01G4/30
摘要： A dielectric ceramic and a capacitor comprising the dielectric ceramic are disclosed. The dielectric ceramic has a high dielectric constant that is stable over temperature, and has a small spontaneous polarization. The capacitor can reduce audible noise caused by an electrically induced strain in a power supply circuit.
摘要翻译：公开了一种介电陶瓷和包括介电陶瓷的电容器。介电陶瓷具有高温稳定的高介电常数，并具有小的自发极化。电容器可以降低由电源电路中的电感应变引起的可闻噪声。

8. 发明申请

US20110019334A1 MULTILAYER CERAMIC CAPACITOR 有权
标题翻译：多层陶瓷电容器
公开(公告)号：US20110019334A1
公开(公告)日：2011-01-27
申请号：US12934635
申请日：2009-03-24
申请人： Masahiro Nishigaki , Hideyuki Osuzu , Jun Ueno , Hiroaki Mino
发明人： Masahiro Nishigaki , Hideyuki Osuzu , Jun Ueno , Hiroaki Mino
IPC分类号： H01G4/30
CPC分类号： H01G4/1227 , H01G4/30
摘要： Disclosed is a multilayer ceramic capacitor which is formed by alternately laminating (i) dielectric layers composed of a dielectric ceramic and (ii) internal electrode layers. The dielectric ceramic is composed of crystal grains mainly composed of barium titanate, while containing predetermined amounts of magnesium, vanadium, manganese and terbium, and at least one rare earth element selected from yttrium, dysprosium, holmium and erbium. In an x-ray diffraction chart of the dielectric ceramic, the diffraction intensity of the (200) plane indicating cubic barium titanate is higher than the diffraction intensity of the (002) plane indicating tetragonal barium titanate. The dielectric ceramic has a Curie temperature of 110-120° C.
摘要翻译：公开了通过交替层叠（i）由电介质陶瓷构成的电介质层和（ii）内部电极层而形成的多层陶瓷电容器。电介质陶瓷由主要由钛酸钡组成的晶粒组成，同时含有预定量的镁，钒，锰和铽，以及至少一种选自钇，镝，钬和铒的稀土元素。在电介质陶瓷的X射线衍射图中，表示立方钛酸钡的（200）面的衍射强度高于表示四方钛酸钡的（002）面的衍射强度。介电陶瓷的居里温度为110-120℃

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