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1. 发明授权

US08264817B2 Dielectric ceramic and laminated ceramic capacitor 有权
标题翻译：介质陶瓷和层压陶瓷电容器
公开(公告)号：US08264817B2
公开(公告)日：2012-09-11
申请号：US12938647
申请日：2010-11-03
申请人： Masanori Nakamura , Toshihiro Okamatsu , Akira Kato , Shinya Isota
发明人： Masanori Nakamura , Toshihiro Okamatsu , Akira Kato , Shinya Isota
IPC分类号： H01G4/06
CPC分类号： H01G4/1227 , C04B35/4682 , C04B35/6262 , C04B35/62645 , C04B2235/3206 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/3239 , C04B2235/3418 , C04B2235/5445 , C04B2235/79 , H01G4/30
摘要： A laminated ceramic capacitor which has a dielectric ceramic with a high dielectric constant and has excellent reliability against changes in temperature and mechanical shocks, even when dielectric ceramic layers are reduced in thickness employs a dielectric ceramic containing (Ba1-xCax)yTiO3 (where 0.045≦x≦0.15 and 0.98≦y≦1.05) as its main constituent and containing Re2O3 (where Re is at least one of Gd, Dy, Ho, Yb, and Y), MgO, MnO, V2O5, and SiO2 as accessory constituents, which is represented by the general formula: 100(Ba1-xCax)yTiO3+aRe2O3+bMgO+cMnO+dV2O5+eSiO2, and satisfies each of the following conditions: 0.65≦a≦1.5; 0.98≦y≦1.05; 0.15≦b≦2.0; 0.4≦c≦1.5; 0.02≦d≦0.25; and 0.2≦e≦3.0.
摘要翻译：即使介电陶瓷层的厚度减小，即使使用包含（Ba1-xCax）yTiO3的电介质陶瓷（其中0.045和nlE），也可以使用具有高介电常数的电介质陶瓷和具有优异的耐温度变化和机械冲击的可靠性的层压陶瓷电容器（其中Re为Gd，Dy，Ho，Yb和Y中的至少一种），MgO，MnO，V2O5和SiO2为辅助成分，其中，x和nlE; 0.15和0.98＆nlE; y＆nlE; 1.05），由以下通式表示：100（Ba1-xCax）yTiO3 + aRe2O3 + bMgO + cMnO + dV2O5 + eSiO2，满足下列条件：0.65＆nlE; a＆nlE; 1.5; 0.98＆nlE; y＆nlE; 1.05; 0.15＆nlE; b＆nlE; 2.0; 0.4＆nlE; c＆nlE; 1.5; 0.02＆nlE; d＆nlE; 0.25; 和0.2＆nlE; e＆nlE; 3.0。

2. 发明申请

US20110205687A1 DIELECTRIC CERAMIC AND LAMINATED CERAMIC CAPACITOR 有权
标题翻译：电介质陶瓷和层压陶瓷电容器
公开(公告)号：US20110205687A1
公开(公告)日：2011-08-25
申请号：US13090818
申请日：2011-04-20
申请人： Noriyuki Inoue , Hitoshi Nishimura , Toshihiro Okamatsu , Takafumi Okamoto
发明人： Noriyuki Inoue , Hitoshi Nishimura , Toshihiro Okamatsu , Takafumi Okamoto
IPC分类号： H01G4/12
CPC分类号： H01G4/1227 , C04B35/4682 , C04B35/49 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3262 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3418 , C04B2235/6025 , C04B2235/652 , C04B2235/6582 , C04B2235/6588 , C04B2235/79 , H01B3/12 , H01G4/30
摘要： Provided is a dielectric ceramic which exhibits desired high temperature load resistance characteristics even under a high electric field strength on the order of 15 kV/mm. The dielectric ceramic contains, as its main constituent, a perovskite compound represented by the general formula (Ba1-h-i-mCahSriGdm)k(Ti1-y-j-n-o-pZryHfjMgnZnoMnp)O3, 0≦h≦0.03, 0≦i≦0.03; 0.042≦m≦0.074; 0.94≦k≦1.075; 0≦(y+j)≦0.05; 0.015≦n≦0.07; 0≦o≦0.04; 0≦p≦0.05; and 1.0
摘要翻译：提供即使在15kV / mm左右的高电场强度下也能表现出期望的耐高温负载特性的电介质陶瓷。电介质陶瓷作为其主要成分含有由通式（Ba1-h-i-mCahSriGdm）k（Ti1-y-j-n-o-pZryHfjMgnZnoMnp）O3表示的钙钛矿化合物，0＆nlE; h＆nlE; 0.03,0和nlE; i＆nlE; 0.03; 0.042＆nlE; m＆nlE; 0.074; 0.94＆nlE; k＆nlE; 1.075; 0＆nlE;（y + j）＆nlE; 0.05; 0.015＆nlE; n＆nlE; 0.07; 0＆nlE; o＆nlE; 0.04; 0＆nlE; p＆nlE; 0.05; 和1.0

3. 发明申请

US20050122639A1 Dielectric ceramic,process for producing the same and laminate ceramic capacitor 有权
标题翻译：介电陶瓷，其制造方法和层压陶瓷电容器
公开(公告)号：US20050122639A1
公开(公告)日：2005-06-09
申请号：US10506858
申请日：2004-01-30
申请人： Toshihiro Okamatsu , Harunobu Sano
发明人： Toshihiro Okamatsu , Harunobu Sano
IPC分类号： C04B35/468 , H01G4/12 , H01G4/30 , H02H7/16
CPC分类号： C04B35/4682 , C04B35/62665 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3244 , C04B2235/3262 , C04B2235/3279 , C04B2235/3293 , C04B2235/6025 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/72 , C04B2235/785 , C04B2235/786 , H01G4/1227 , H01G4/30
摘要： A dielectric ceramic is obtained by the steps of obtaining a reaction product composed of a barium titanate base composite oxide represented by the general formula (Ba1-h-i-mCahSriGdm) k (Ti1-y-j-nZryHfjMgn)O3, in which 0.995≦k≦1.015, 0≦h≦0.03, 0≦i≦0.03, 0.015≦m≦0.035, 0≦y
摘要翻译：通过以下步骤获得电介质陶瓷：通过以下步骤获得由通式（Ba 1-a H a Ca S h Sub）表示的钛酸钡基复合氧化物组成的反应产物 Gd>>）>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 其中0.995 <= k <= 1.015,0 <= h <=0.03,0≤i≤0.03,0.015≤m≤0.035 ，0 <= y <0.05,0 <= j <0.05,0 <=（y + j）<0.05和0.015 <= n <= 0.035保持; 混合少于1.5摩尔的Ma（Ba等），小于1.0摩尔的Mb（Mn等）和0.5-2.0摩尔的Mc（Si等）相对于100摩尔的反应产物; 并烧制由此获得的混合物。该电介质陶瓷具有优异的耐湿性，满足JIS标准的F特性和EIA标准的Y5V特性，其相对介电常数为9000以上，具有优异的高温可靠性。

4. 发明授权

US06301092B1 Ceramic capacitor and method for making the same 有权
标题翻译：陶瓷电容器及其制作方法
公开(公告)号：US06301092B1
公开(公告)日：2001-10-09
申请号：US09591298
申请日：2000-06-09
申请人： Kotaro Hata , Toshihiro Okamatsu , Tomoyuki Nakamura , Kenji Hori , Harunobu Sano
发明人： Kotaro Hata , Toshihiro Okamatsu , Tomoyuki Nakamura , Kenji Hori , Harunobu Sano
IPC分类号： H01G406
CPC分类号： H01G4/1245 , H01G4/1218 , H01G4/1236
摘要： A ceramic capacitor has a dielectric ceramic layer and at least one pair of electrodes. The dielectric ceramic layer has a primary phase and secondary phases, and the size of the secondary phases in the thickness direction of the dielectric ceramic layer is not more than about one-third of the thickness of the dielectric ceramic layer. A method for making the ceramic capacitor includes the steps of mixing compounds constituting secondary phases in a primary phase of a dielectric ceramic, annealing and then pulverizing the mixture to prepare a raw material for the secondary phases, mixing the raw material for the secondary phases with other materials for the dielectric ceramic shaping and sintering the mixture to form a dielectric ceramic, and forming electrodes on the dielectric ceramic. The ceramic capacitor has high insulation resistance, superior load characteristics at high temperatures or high humidity and high weather resistance, even when sintered in a reducing atmosphere.
摘要翻译：陶瓷电容器具有介电陶瓷层和至少一对电极。电介质陶瓷层具有主相和次相，并且介电陶瓷层的厚度方向上的次相的尺寸不超过介电陶瓷层的厚度的约三分之一。制造陶瓷电容器的方法包括以下步骤：将构成第二相的化合物混合在电介质陶瓷的初生相中，退火然后粉碎混合物以制备二次相的原料，将第二相的原料与电介质陶瓷的其他材料成型并烧结混合物以形成电介质陶瓷，并在电介质陶瓷上形成电极。陶瓷电容器具有高绝缘电阻，在高温或高湿度下具有优异的负载特性和高耐候性，即使在还原气氛中烧结也是如此。

5. 发明授权

US07242571B2 Dielectric ceramic, manufacturing method therefor, and multilayer ceramic capacitor 有权
标题翻译：介电陶瓷及其制造方法和多层陶瓷电容器
公开(公告)号：US07242571B2
公开(公告)日：2007-07-10
申请号：US10506858
申请日：2004-01-30
申请人： Toshihiro Okamatsu , Harunobu Sano
发明人： Toshihiro Okamatsu , Harunobu Sano
IPC分类号： H01G4/06
CPC分类号： C04B35/4682 , C04B35/62665 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3244 , C04B2235/3262 , C04B2235/3279 , C04B2235/3293 , C04B2235/6025 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/72 , C04B2235/785 , C04B2235/786 , H01G4/1227 , H01G4/30
摘要： A dielectric ceramic is obtained by the steps of obtaining a reaction product composed of a barium titanate base composite oxide represented by the general formula (Ba1−h−i−mCahSriGdm)k(Ti1−y−j−nZryHfjMgn)O3, in which 0.995≦k≦1.015, 0≦h≦0.03, 0≦i≦0.03, 0.015≦m≦0.035, 0≦y
摘要翻译：通过以下步骤获得电介质陶瓷：通过以下步骤获得由通式（Ba 1-a H a Ca S h Sub）表示的钛酸钡基复合氧化物组成的反应产物 Gd>>）>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 其中0.995 <= k <= 1.015,0 <= h <=0.03,0≤i≤0.03,0.015≤m≤0.035 ，0 <= y <0.05,0 <= j <0.05,0 <=（y + j）<0.05，0.015 <= n <= 0.035保持; 混合少于1.5摩尔的Ma（Ba等），小于1.0摩尔的Mb（Mn等）和0.5-2.0摩尔的Mc（Si等）相对于100摩尔的反应产物; 并烧制由此获得的混合物。该电介质陶瓷具有优异的耐湿性，满足JIS标准的F特性和EIA标准的Y5V特性，其相对介电常数为9000以上，具有优异的高温可靠性。

6. 发明授权

US07626803B2 Dielectric ceramic and multilayer ceramic capacitor 有权
标题翻译：介质陶瓷和多层陶瓷电容器
公开(公告)号：US07626803B2
公开(公告)日：2009-12-01
申请号：US11806501
申请日：2007-05-31
申请人： Toshihiro Okamatsu , Takashi Hiramatsu , Harunobu Sano
发明人： Toshihiro Okamatsu , Takashi Hiramatsu , Harunobu Sano
IPC分类号： H01G4/06
CPC分类号： C04B35/4682 , B32B2311/22 , C04B35/49 , C04B35/6262 , C04B35/62665 , C04B35/62685 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3232 , C04B2235/3244 , C04B2235/3262 , C04B2235/3267 , C04B2235/3281 , C04B2235/3418 , C04B2235/5445 , C04B2235/656 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/72 , C04B2235/782 , C04B2235/786 , C04B2235/85 , C04B2235/96 , C04B2237/346 , C04B2237/348 , C04B2237/405 , H01B3/12 , H01G4/1227
摘要： A dielectric ceramic is provided having a high relative dielectric constant, and in the case in which it is used for a multilayer ceramic capacitor, high insulating properties and superior reliability can be obtained even when the thickness of a dielectric ceramic layer is decreased. The dielectric ceramic used for forming the dielectric ceramic layer of a multilayer ceramic capacitor has a composition represented by 100 (Ba1−w−x−mCawSrxGdm)k(Ti1−y−z−nZryHfzMgn)O3+a+pMnO2+qSiO2+rCuO, in which 0.995≦k≦1.010, 0≦w
摘要翻译：提供具有高相对介电常数的电介质陶瓷，并且在其用于多层陶瓷电容器的情况下，即使当电介质陶瓷层的厚度减小时，也可以获得高绝缘性和优异的可靠性。用于形成多层陶瓷电容器的介电陶瓷层的电介质陶瓷具有由100（Ba1-wx-mCawSrxGdm）k（Ti1-yz-nZryHfzMgn）O3 + a + pMnO2 + qSiO2 + rCuO表示的组成，其中0.995 < = k <= 1.010,0 <= w <0.04,0 <= x <= 0.04,0 <= y <= 0.10,0 <= z <= 0.05,0.015 <= m <= 0.035,0.015 <= n < = 0.035,0.01 <= p <=1.0,0.5≤q≤2.5,0.01≤R≤5.0。另外，a是相对于3的偏差选择的值，使得主要部件是电中性的。

7. 发明申请

US20090128990A1 DIELECTRIC CERAMIC, METHOD OF PRODUCING THE SAME, AND MONOLITHIC CERAMIC CAPACITOR 有权
标题翻译：介电陶瓷，其制造方法和单晶陶瓷电容器
公开(公告)号：US20090128990A1
公开(公告)日：2009-05-21
申请号：US12355706
申请日：2009-01-16
申请人： Noriyuki Inoue , Toshihiro Okamatsu
发明人： Noriyuki Inoue , Toshihiro Okamatsu
IPC分类号： C04B35/468 , H01G4/12
CPC分类号： H01B3/12 , C01G23/006 , C01G53/006 , C01G53/70 , C01P2002/54 , C01P2002/72 , C01P2004/62 , C01P2006/40 , C04B35/4682 , C04B35/6261 , C04B35/62685 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3232 , C04B2235/3234 , C04B2235/3236 , C04B2235/3262 , C04B2235/3268 , C04B2235/3279 , C04B2235/3281 , C04B2235/3282 , C04B2235/3418 , C04B2235/5445 , C04B2235/6025 , C04B2235/652 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/79 , C04B2235/80 , C04B2235/85 , H01G4/1227 , H01G4/30
摘要： A dielectric ceramic contains a barium titanate compound oxide as a main component; at least one rare earth element R selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu; Mg; and Ni, such that a crystalline compound oxide containing the rare earth element R, Ni, and Ti as main components is present. Dielectric ceramic layers are made of the dielectric ceramic. Accordingly, even when a higher electric field is continuously applied under a high-temperature atmosphere for a long time, high reliability can be ensured.
摘要翻译：介电陶瓷含有钛酸钡复合氧化物作为主要成分; 选自Y，La，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Yb和Lu中的至少一种稀土元素R; 镁和Ni，使得含有稀土元素R，Ni和Ti作为主要成分的结晶复合氧化物存在。介电陶瓷层由电介质陶瓷制成。因此，即使长时间在高温环境下连续施加较高的电场，也可以确保高可靠性。

8. 发明授权

US06939822B2 Dielectric ceramic, methods for making and evaluating the same, and monolithic ceramic electronic component 有权
标题翻译：介电陶瓷，制造和评价陶瓷电子元件的方法
公开(公告)号：US06939822B2
公开(公告)日：2005-09-06
申请号：US10352038
申请日：2003-01-28
申请人： Hiroyasu Konaka , Tomoyuki Nakamura , Toshihiro Okamatsu , Harunobu Sano
发明人： Hiroyasu Konaka , Tomoyuki Nakamura , Toshihiro Okamatsu , Harunobu Sano
IPC分类号： C04B35/46 , C04B35/468 , C04B35/48 , H01G4/12 , C04B35/49
CPC分类号： C04B35/48 , B32B18/00 , B32B2311/08 , C04B35/4682 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3239 , C04B2235/3241 , C04B2235/3262 , C04B2235/3267 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3409 , C04B2235/3418 , C04B2235/36 , C04B2235/6582 , C04B2235/6584 , C04B2235/785 , C04B2235/786 , C04B2235/85 , C04B2237/346 , C04B2237/408 , C04B2237/704 , H01G4/1227 , H01G4/1245
摘要： A dielectric ceramic has a ceramic structure of crystal grains and grain boundaries between the crystal grains. The crystal grains are of a main component represented by the formula ABO3 and an additive containing a rare earth element wherein A is at least one of barium, calcium, and strontium, barium being an essential element, and B is at least one of titanium, zirconium, and hafnium, titanium being an essential element. The average rare earth element concentration in the interior of the crystal grains is about 50% or less the average rare earth element concentration at the grain boundaries. Furthermore, about 20% to 70% of the crystal grains have a rare earth element concentration in the center of the crystal grain of at least about 1/50 the maximum rare earth element concentration in a region extending inward from the surface by a distance corresponding to about 5% of the diameter of the crystal grain.
摘要翻译：电介质陶瓷具有晶粒的陶瓷结构和晶粒之间的晶界。晶粒是由式ABO 3 3表示的主要成分和含有稀土元素的添加剂，其中A是钡，钙和锶中的至少一种，钡是必需元素，以及 B是钛，锆和铪中的至少一种，钛是必需元素。晶粒内部的平均稀土元素浓度约为晶界平均稀土元素浓度的50％以下。此外，约20％至70％的晶粒在晶粒的中心具有至少约1/50的稀土元素浓度，该稀土元素浓度在从表面向内延伸一定距离的区域中的最大稀土元素浓度至约5％的晶粒直径。

9. 发明授权

US06556423B2 Dielectric ceramic, methods for making and evaluating the same, and monolithic ceramic electronic component 有权
公开(公告)号：US06556423B2
公开(公告)日：2003-04-29
申请号：US10092258
申请日：2002-03-07
申请人： Hiroyasu Konaka , Tomoyuki Nakamura , Toshihiro Okamatsu , Harunobu Sano
发明人： Hiroyasu Konaka , Tomoyuki Nakamura , Toshihiro Okamatsu , Harunobu Sano
IPC分类号： H01G406
CPC分类号： C04B35/48 , B32B18/00 , B32B2311/08 , C04B35/4682 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3236 , C04B2235/3239 , C04B2235/3241 , C04B2235/3262 , C04B2235/3267 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3409 , C04B2235/3418 , C04B2235/36 , C04B2235/6582 , C04B2235/6584 , C04B2235/785 , C04B2235/786 , C04B2235/85 , C04B2237/346 , C04B2237/408 , C04B2237/704 , H01G4/1227 , H01G4/1245
摘要： A dielectric ceramic has a ceramic structure of crystal grains and grain boundaries between the crystal grains. The crystal grains are of a main component represented by the formula ABO3 and an additive containing a rare earth element wherein A is at least one of barium, calcium, and strontium, barium being an essential element, and B is at least one of titanium, zirconium, and hafnium, titanium being an essential element. The average rare earth element concentration in the interior of the crystal grains is about 50% or less the average rare earth element concentration at the grain boundaries. Furthermore, about 20% to 70% of the crystal grains have a rare earth element concentration in the center of the crystal grain of at least about {fraction (1/50)} the maximum rare earth element concentration in a region extending inward from the surface by a distance corresponding to about 5% of the diameter of the crystal grain.

10. 发明授权

US08385049B2 Dielectric ceramic and laminated ceramic capacitor 有权
标题翻译：介质陶瓷和层压陶瓷电容器
公开(公告)号：US08385049B2
公开(公告)日：2013-02-26
申请号：US13090818
申请日：2011-04-20
申请人： Noriyuki Inoue , Hitoshi Nishimura , Toshihiro Okamatsu , Takafumi Okamoto
发明人： Noriyuki Inoue , Hitoshi Nishimura , Toshihiro Okamatsu , Takafumi Okamoto
IPC分类号： H01G4/06 , C04B35/00
CPC分类号： H01G4/1227 , C04B35/4682 , C04B35/49 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3262 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3418 , C04B2235/6025 , C04B2235/652 , C04B2235/6582 , C04B2235/6588 , C04B2235/79 , H01B3/12 , H01G4/30
摘要： Provided is a dielectric ceramic which exhibits desired high temperature load resistance characteristics even under a high electric field strength on the order of 15 kV/mm. The dielectric ceramic contains, as its main constituent, a perovskite compound represented by the general formula (Ba1-h-i-mCahSriGdm)k(Ti1-y-j-n-o-pZryHfjMgnZnoMnp)O3, 0≦h≦0.03, 0≦i≦0.03; 0.042≦m≦0.074; 0.94≦k≦1.075; 0≦(y+j)≦0.05; 0.015≦n≦0.07; 0≦o≦0.04; 0≦p≦0.05; and 1.0
摘要翻译：提供即使在15kV / mm左右的高电场强度下也能表现出期望的耐高温负载特性的电介质陶瓷。电介质陶瓷作为其主要成分含有由通式（Ba1-h-i-mCahSriGdm）k（Ti1-y-j-n-o-pZryHfjMgnZnoMnp）O3表示的钙钛矿化合物，0＆nlE; h＆nlE; 0.03,0和nlE; i＆nlE; 0.03; 0.042＆nlE; m＆nlE; 0.074; 0.94＆nlE; k＆nlE; 1.075; 0＆nlE;（y + j）＆nlE; 0.05; 0.015＆nlE; n＆nlE; 0.07; 0＆nlE; o＆nlE; 0.04; 0＆nlE; p＆nlE; 0.05; 和1.0

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