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1. 发明公开

KR1020070070260A 유전체 세라믹 및 적층 세라믹 커패시터 有权
标题翻译：电介质陶瓷和多层陶瓷电容器
公开(公告)号：KR1020070070260A
公开(公告)日：2007-07-03
申请号：KR1020077013344
申请日：2005-12-06
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 오카마츠토시히로 , 히라마츠타카시 , 사노하루노부
IPC分类号： H01B3/12 , H01G4/12 , C04B35/468 , C04B111/90
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 of high dielectric constant that in the use in multilayer ceramic capacitor (1), even when the thickness of dielectric ceramic layer (3) is reduced, realizes high insulation and excels in reliability. There is provided a dielectric ceramic for construction of dielectric ceramic layer (3) of multilayer ceramic capacitor (1), comprising a composition of the formula 100(Ba1-w-x-mCa wSrxGdm)k(Ti1-y-z-n ZryHfzMgn)O3+a + pMnO 2 + qSiO2 + rCuO, wherein 0.995
摘要翻译：即使在介电陶瓷层（3）的厚度减小的情况下，在多层陶瓷电容器（1）的使用中也具有高介电常数的介电陶瓷，实现了高绝缘性和可靠性。提供一种用于构造多层陶瓷电容器（1）的介电陶瓷层（3）的介电陶瓷，其包含式100（Ba1-wx-mCa wSrxGdm）k（Ti1-yznZryHfzMgn）O3 + a + pMnO 2 + qSiO 2 + rCuO，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和0.01 <= r <= 5.0，a是选择的值，使得主要成分与3的任何偏差电中性。

2. 发明授权

KR100606548B1 유전체 세라믹 및 그 제조방법 그리고 적층 세라믹 커패시터 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：KR100606548B1
公开(公告)日：2006-08-01
申请号：KR1020047013933
申请日：2004-01-30
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 오카마츠토시히로 , 사노하루노부
IPC分类号： C04B35/468 , H01B3/12
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： (Ba
1-him Ca
h Sr
i Gd
m )
k (Ti
1-yjn Zr
y Hf
j Mg
n )O
3 로 표현되며, 0.995≤k≤1.015, 0≤h≤0.03, 0≤i≤0.03, 0.015≤m≤0.035, 0≤y

3. 发明公开

KR1020040078565A 유전체 세라믹 및 그 제조방법, 적층 세라믹 콘덴서 有权
标题翻译：包含PEROVSKITE复合颗粒和晶体氧化物颗粒的电介质陶瓷作为晶体颗粒，其制造方法和多层陶瓷电容器
公开(公告)号：KR1020040078565A
公开(公告)日：2004-09-10
申请号：KR1020040013984
申请日：2004-03-02
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 나카무라도모유키 , 가토아키라 , 무토가즈오 , 사노하루노부
IPC分类号： H01G4/12
CPC分类号： H01G4/30 , H01G4/1227 , Y10T29/43
摘要： PURPOSE: A dielectric ceramic, a manufacturing method thereof, and a multilayer ceramic capacitor are provided to achieve improved reliability even in case where a dielectric ceramic layer has a reduced thickness. CONSTITUTION: A dielectric ceramic comprises crystal grains, and crystal boundary and triple points arranged between the crystal grains. The crystal grains includes Perovskite compound grains(21) which are consisted of a Perovskite compound expressed as ABO3(wherein, A is Ba and Ca, Ba, or Ca and Sr, and B is Ti, or at least one of Zr and Hf), and crystal oxide grains(22) which are consisted of a crystal oxide containing at least Ba, Ti and Si. From among the triple points, 80% or higher of the number of the triple points have cross section areas of 8nm¬2 or lower.
摘要翻译：目的：提供电介质陶瓷及其制造方法和多层陶瓷电容器，以便即使在电介质陶瓷层具有减小的厚度的情况下也可实现提高的可靠性。构成：电介质陶瓷包括晶粒，并且晶体边界和三重点排列在晶粒之间。晶粒包括由以ABO3表示的钙钛矿化合物（其中A为Ba和Ca，Ba或Ca和Sr，B为Ti或Zr和Hf中的至少一种）的钙钛矿化合物晶粒（21），和由至少包含Ba，Ti和Si的结晶氧化物构成的晶体氧化物晶粒（22）。在三重点中，三重点数的80％以上的截面积为8nm2以下。

4. 发明授权

KR100443231B1 유전체 세라믹 조성물 및 적층 세라믹 캐패시터 有权
标题翻译： 유전체세라믹조성물및적층세라믹캐패시터
公开(公告)号：KR100443231B1
公开(公告)日：2004-08-04
申请号：KR1020010073044
申请日：2001-11-22
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 나카무라도모유키 , 하타고타로 , 사노하루노부
IPC分类号： C04B35/468 , H01B3/12 , H01G4/12
CPC分类号： B32B18/00 , C04B35/468 , C04B2235/768 , C04B2237/066 , C04B2237/068 , C04B2237/123 , C04B2237/346 , C04B2237/348 , C04B2237/68
摘要： Provided is a dielectric ceramic composition suitably used for forming dielectric ceramic layers which constitute a laminated ceramic capacitor obtained by firing in a reducing atmosphere. Even when the dielectric ceramic composition is formed into thin dielectric ceramic layers, a highly reliable laminated ceramic capacitor having a small temperature coefficient of capacitance, a long lifetime under high temperature and high pressure conditions, and a small change in electrostatic capacitance with time under a DC voltage application can be realized. The dielectric ceramic composition contains a primary component, an additive component, and an auxiliary sintering agent, wherein the primary component and the additive component are represented by the formula 100BaTiO3+a{(1-b)R+bV}+cM, and 1.25 1.1 are satisfied. R is a compound containing at least one element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu; V is a compound containing vanadium; and M is a compound containing at least one element selected from the group consisting of Mn, Ni, Mg, Fe and Zn.
摘要翻译：本发明提供适合用于构成在还原气氛中烧成而成的层叠陶瓷电容器的电介质陶瓷层的电介质陶瓷组合物。即使在将电介质陶瓷组合物形成为薄的电介质陶瓷层的情况下，也能够提供电容温度系数小，高温高压下的寿命长，静电电容随时间的变化小的可靠性高的层叠陶瓷电容器直流电压应用可以实现。介电陶瓷组合物含有主要组分，添加剂组分和辅助烧结剂，其中主要组分和添加剂组分由式100BaTiO3 + a {（1-b）R + bV} + cM表示，并且1.25 ≤a≤8.0,0≤b≤0.2,1.0≤c≤6.0和a /c≥1.1。 R是含有选自La，Ce，Pr，Nd，Sm，Eu，Gd，Th，Dy，Ho，Er，Tm，Yb和Lu中的至少一种元素的化合物; V是含有钒的化合物; M是含有选自Mn，Ni，Mg，Fe和Zn中的至少一种元素的化合物。

5. 发明授权

KR100414331B1 비환원성 유전체 세라믹 및 이것을 사용한 모놀리식 세라믹 커패시터 有权
标题翻译： 비환원성유전체세라믹및이것을사용한모놀리식세라믹커패시터
公开(公告)号：KR100414331B1
公开(公告)日：2004-01-07
申请号：KR1020010018466
申请日：2001-04-07
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 나이토마사히로 , 모토키도모오 , 사노하루노부
IPC分类号： C04B35/49 , H01B3/12 , H01G4/12
CPC分类号： C04B35/49 , H01B3/12 , H01G4/1227 , H01G4/1236 , H01G4/1245
摘要： A nonreducing dielectric contains a main-component having a perovskite crystal phase and satisfying the formulaand a compound oxide represented by the formulae (Si, T)O2-MO-XO and (Si, T)O2-(Mn, M')O-Al2O3. The ratio of the intensity of the maximum peak of a crystal phase not of the perovskite crystal phase to the intensity of the maximum peak assigned to the perovskite crystal phase appearing at 2theta=25 to 35° is about 5% or less in a CuKalpha X-ray diffraction pattern.
摘要翻译：非还原电介质含有具有钙钛矿结晶相的主成分，并满足式（Si，T）O 2 -MO-XO和（Si，T）O 2 - （Mn，M'）O- 氧化铝。钙钛矿结晶相的结晶相的最大峰的强度与归属于2θ= 25〜35°的钙钛矿结晶相的最大峰的强度之比在CuKalpha X射线衍射图中约为5％或更低。

6. 发明公开

KR1020030029499A 도전성 페이스트, 적층 세라믹 전자부품의 제조방법 및적층 세라믹 전자부품 有权
标题翻译：电焊膏，生产单晶陶瓷电子部件的方法和单晶陶瓷电子部件
公开(公告)号：KR1020030029499A
公开(公告)日：2003-04-14
申请号：KR1020020060485
申请日：2002-10-04
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 나카무라도모유키 , 시미즈모토히로 , 사노하루노부
IPC分类号： H01G4/12
CPC分类号： H01G4/008 , B32B18/00 , B32B2311/08 , B32B2311/22 , C04B35/4682 , C04B35/49 , C04B35/6262 , C04B35/63 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3236 , C04B2235/3262 , C04B2235/3418 , C04B2235/5445 , C04B2235/6025 , C04B2235/6582 , C04B2235/6584 , C04B2235/77 , C04B2235/79 , C04B2235/96 , C04B2235/9615 , C04B2237/346 , C04B2237/405 , C04B2237/408 , C04B2237/704 , H01G4/30
摘要： PURPOSE: An electroconductive paste, a method of producing monolithic ceramic electronic part, and a monolithic ceramic electronic part are provided to achieve a conductive paste for forming inner conductor films which cause no structural defects in monolithic ceramic capacitors and exerts substantially no undesired influences over the electrical characteristics of the ceramic layers, even if the sizes of the monolithic ceramic capacitors are reduced more, and the capacitance is further increased. CONSTITUTION: An electroconductive paste comprises an electroconductive metallic powder, a ceramic powder, and an organic vehicle. The ceramic powder is a calcined powder of an ABO3 ceramic in which A represents Ba or Ba partially substituted by at least one of Ca and Sr, and B represents Ti or Ti partially substituted by at least one of Zr and Hf: the ceramic powder containing at least one Re compound, Mg compound or Mn compounds, in which Re is at least one member selected from the group of consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and wherein the ceramic powder has an average grain size smaller than that of the metal powder and is incapable of sintering at the sintering temperature of the substrate ceramic.
摘要翻译：目的：提供导电浆料，制造单片陶瓷电子部件的方法和单片陶瓷电子部件，以实现用于形成内导体膜的导电浆料，其不会在单片陶瓷电容器中产生结构缺陷，并且基本上不会对即使陶瓷电容器的尺寸减小，并且电容进一步增加，陶瓷层的电特性也是如此。构成：导电浆料包含导电金属粉末，陶瓷粉末和有机载体。陶瓷粉末是ABO 3陶瓷的煅烧粉末，其中A表示被Ca和Sr中的至少一种部分取代的Ba或Ba，B表示部分被Zr和Hf中的至少一种取代的Ti或Ti：含有至少一种Re化合物，Mg化合物或Mn化合物，其中Re为选自La，Ce，Pr，Nd，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm中的至少一种 Yb，Lu和Y，并且其中所述陶瓷粉末的平均粒度小于所述金属粉末的平均粒度，并且在所述基底陶瓷的烧结温度下不能烧结。

7. 发明授权

KR100379204B1 유전체 세라믹 조성물 및 모놀리식 세라믹 부품 有权
标题翻译： 유전체세라믹조성물및모놀리식세라믹부품
公开(公告)号：KR100379204B1
公开(公告)日：2003-04-08
申请号：KR1020000053068
申请日：2000-09-07
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 마토바히로아키 , 사노하루노부
IPC分类号： C04B35/468 , H01B3/12 , H01G4/12
CPC分类号： C04B35/462 , C04B35/465 , C04B35/4686 , H01B3/12 , H01G4/1227 , Y10T428/24917
摘要： A dielectric ceramic composition comprises 100 parts by weight of a primary constituent, about 0.1 to 25 parts by weight of a first secondary constituent comprising a SiO2-based glass not containing lead oxide, and about 20 parts by weight or less of a second secondary constituent comprising manganese oxide (MnO). The primary constituent is represented by the formula x(BaalphaCabetaSrgamma)O-y[(TiO2)1-m(ZrO2)m]-zRe2O3 wherein x+y+z=100 on a molar basis, alpha+beta+gamma=1, 0
摘要翻译：介电陶瓷组合物包含100重量份的主要组分，约0.1-25重量份的包含不含氧化铅的SiO 2基玻璃的第一次要组分和约20重量份或更少的第二次要组分包含氧化锰（MnO）。主要组分由式x（BaalphaCabetaSrgamma）Oy [（TiO 2）1-m（ZrO 2）m] -zRe 2 O 3表示，其中x + y + z = 100，以摩尔计，α+β+γ= 1,0 < =β+γ≤0.8,0

8. 发明授权

KR100374470B1 세라믹 커패시터 및 그 제조방법 有权
标题翻译： 세라믹커패시터및그제조방법
公开(公告)号：KR100374470B1
公开(公告)日：2003-03-04
申请号：KR1020000033214
申请日：2000-06-16
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 하타코타로 , 오카마츠도시히로 , 나카무라도모유키 , 호리겐지 , 사노하루노부
IPC分类号： H01G4/30
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。介电陶瓷层具有第一相和第二相，并且介电陶瓷层的厚度方向上的第二相的尺寸不大于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：在介电陶瓷的主相中混合构成第二相的化合物，退火然后粉碎混合物以制备用于第二相的原料，将用于第二相的原料与用于介电陶瓷的其他材料成形并烧结该混合物以形成介电陶瓷，以及在介电陶瓷上形成电极。陶瓷电容器即使在还原气氛中烧结，也具有高绝缘电阻，高温或高湿度下的优异负载特性和高耐候性。

9. 发明公开

KR1020020032326A 유전체 세라믹, 유전체 세라믹의 생산 공정 및 다층세라믹 커패시터 有权
标题翻译：电介质陶瓷，其制造方法和多层陶瓷电容器
公开(公告)号：KR1020020032326A
公开(公告)日：2002-05-03
申请号：KR1020010065375
申请日：2001-10-23
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 나카무라도모유키 , 사카이겐타로 , 사노하루노부
IPC分类号： H01G4/12
CPC分类号： H01G4/1245 , B32B18/00 , C04B35/4682 , C04B2235/6567 , C04B2235/658 , C04B2237/346 , C04B2237/66 , C04B2237/704 , H01G4/1227 , H01G4/1236
摘要： PURPOSE: A dielectric ceramic and a process for producing the same are provided to exhibit less temperature-dependent change and time-dependent change under the application of a direct-current voltage. CONSTITUTION: A multilayer ceramic capacitor(1) comprises a laminate(2). The laminate(2) includes a plurality of dielectric ceramic layers(3) and a plurality of inner electrodes(4,5). The dielectric ceramic layers(3) are laminated with one another, and the inner electrodes(4,5) are respectively formed along specific plural interfaces between the dielectric ceramic layers(3). The inner electrodes(4,5) extend to outer surfaces of the laminate(2) and are alternately arranged inside the laminate(2). The inner electrodes(4) are derived from one end face(6) of the laminate(2), and the inner electrodes(5) are derived from the other end face(7).
摘要翻译：目的：提供电介质陶瓷及其制造方法，以在直流电压的应用下显示更少的温度依赖性变化和时间依赖性变化。构成：多层陶瓷电容器（1）包括层叠体（2）。层压体（2）包括多个电介质陶瓷层（3）和多个内部电极（4,5）。电介质陶瓷层（3）彼此层压，并且内电极（4,5）分别沿着电介质陶瓷层（3）之间的特定多个界面形成。内部电极（4,5）延伸到层叠体（2）的外表面并且交替地布置在层压体（2）的内部。内部电极（4）从层叠体（2）的一个端面（6）导出，内部电极（5）从另一个端面（7）导出。

10. 发明公开

KR1020010029809A 세라믹 커패시터 및 그 제조방법 有权
标题翻译：陶瓷电容器及其制造
公开(公告)号：KR1020010029809A
公开(公告)日：2001-04-16
申请号：KR1020000033214
申请日：2000-06-16
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 하타코타로 , 오카마츠도시히로 , 나카무라도모유키 , 호리겐지 , 사노하루노부
IPC分类号： H01G4/30
CPC分类号： H01G4/1245 , H01G4/1218 , H01G4/1236
摘要： PURPOSE: To obtain a ceramic capacitor having a high insulation resistance, a superior service life characteristic, and superior wheatherability, by forming the dielectric ceramic layer of the capacitor in such a way that secondary phases having sizes which are equal to a specific rate of the thickness of the ceramic layer or smaller in the thickness direction of the layer exist in the ceramic layer separately from main phases. CONSTITUTION: In the dielectric ceramic layer 2b of a laminated ceramic capacitor 1, secondary phases 3 exist separately from main phases and the sizes of the phases 3 are adjusted to
摘要翻译：目的：通过形成电容器的介电陶瓷层，获得具有高绝缘电阻，优异的使用寿命特性和优异的可磨性的陶瓷电容器，使得二次相的尺寸等于陶瓷层的厚度或层的厚度方向上的厚度与主相分开存在于陶瓷层中。构成：在层叠陶瓷电容器1的电介质陶瓷层2b中，次级相3与主相分开存在，相3的尺寸被调整为<=厚度方向的层2b的厚度的1/3 层2b。构成层2b的电介质陶瓷具有由式ABO 3表示的组成（其中A和B分别表示从Ba，Sr，Ca和Mg中选出的至少一种元素，以及选择的至少一种元素的输出Ti ，Zr和Hf）。优选在电介质陶瓷中添加主要由SiO 2或B 2 O 3组成的玻璃成分，以便即使陶瓷在中性或还原性气氛中烘烤，陶瓷也不会降低陶瓷的不可还原性。

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