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1. 发明授权

US5616528A Dielectric ceramic composition, multilayer resonator made of said composition and multilayer filter using said resonator 失效
标题翻译：介电陶瓷组合物，由所述组合物制成的多层谐振器和使用所述谐振器的多层滤波器
公开(公告)号：US5616528A
公开(公告)日：1997-04-01
申请号：US564816
申请日：1995-11-29
申请人： Hirofumi Toda , Shinjiro Shimo , Nobuyoshi Fujikawa , Shinji Isoyama , Kouichi Maruta
发明人： Hirofumi Toda , Shinjiro Shimo , Nobuyoshi Fujikawa , Shinji Isoyama , Kouichi Maruta
IPC分类号： C04B35/465
CPC分类号： C04B35/465
摘要： A dielectric ceramic composition comprising main components represented by a composition formula on the weight basis, aMgO.multidot.bCaO.multidot.cTiO.sub.2, wherein a, b and c satisfy the following relationships, 25.ltoreq.a.ltoreq.35, 0.3.ltoreq.b.ltoreq.7, 60.ltoreq.c.ltoreq.70, a+b+c=100, blended with a boron-containing compound in an amount of from 3 to 20 parts by weight reckoned as B.sub.2 O.sub.3 and an alkali metal-containing compound in an amount of from 1 to 12 parts by weight reckoned as the alkali metal carbonate per 100 parts by weight of the main components, as well as a multilayer resonator made of said composition, and a filter using said resonator. The ceramic composition can be fired together with a conductor metal such as Ag or Cu at a relatively low temperature of 900.degree. to 1050.degree. C., exhibits large dielectric constant and Q-value, and a relatively small temperature coefficient .tau.f, lending itself well for use as a material for high-frequency electronic parts. The resonator made of this ceramic composition exhibits excellent tproperties in high-frequency regions, and can be realized in a small size.
摘要翻译：一种介电陶瓷组合物，其包含以重量为基准的组成式表示的主要组分，aMgObBaOxcTiO 2，其中a，b和c满足以下关系：25 35，0.3

2. 发明授权

US5650368A Dielectric ceramic composition 失效
标题翻译：介电陶瓷组合物
公开(公告)号：US5650368A
公开(公告)日：1997-07-22
申请号：US686482
申请日：1996-07-26
申请人： Yuji Tateishi , Akihiro Kaneuchi , Nobuyoshi Fujikawa
发明人： Yuji Tateishi , Akihiro Kaneuchi , Nobuyoshi Fujikawa
IPC分类号： C04B35/468 , C04B35/49 , H01B3/12 , H01G4/12 , H01P7/10
CPC分类号： C04B35/4686 , C04B35/4682 , C04B35/49 , H01B3/12 , H01G4/1209 , H01G4/1227 , H01P7/10
摘要： A dielectric ceramic composition used for a ceramic capacitor for temperature compensation, a resonator and the like. The dielectric ceramic composition comprises a composite oxide containing, as metal elements, main components of (i) barium, (ii) rare earth elements such as neodymium (Nd) or Nd and Sm in combination, and (iii) elements of the Group IV of periodic table such as titanium (Ti) or Ti and Zr or Sn in combination, and an assistant component of manganese, wherein the main components comprise from 7.5 to 16.25 mol % of a barium oxide, from 16.75 to 23.75 mol % of an oxide of rare earth element, and from 67 to 71.66 mol % of an oxide of element of the Group IV reckoned as a molar composition of the ternary-component-based oxide, the manganese component is contained in an amount of from 0.01 to 0.5% by weight reckoned as MnCO.sub.3 with respect to the main components, and sodium component which is an impurity is contained in an amount of not larger than 0.10% by weight with respect to the whole amount.
摘要翻译：用于温度补偿用陶瓷电容器的电介质陶瓷组合物，谐振器等。电介质陶瓷组合物包含作为金属元素的复合氧化物，其包含（i）钡，（ii）稀土元素如钕（Nd）或Nd和Sm的组合的主要成分，和（iii）第IV族元素的元素周期表如钛（Ti）或Ti和Zr或Sn的组合，以及锰的助剂，其中主要组分包含7.5-16.25mol％的氧化钡，16.75- 23.75mol％的氧化物的稀土元素的摩尔组成的第IV族元素的氧化物的67〜71.66摩尔％，作为三元成分的氧化物的摩尔组成的锰成分含量为0.01〜0.5％重量相对于主要成分为MnCO 3，作为杂质的钠成分的含量相对于全部量为0.10重量％以下。

3. 发明授权

US5376603A Dielectric ceramic for microwaves 失效
标题翻译：用于微波的介质陶瓷
公开(公告)号：US5376603A
公开(公告)日：1994-12-27
申请号：US235138
申请日：1994-04-28
申请人： Seiichiro Hirahara , Nobuyoshi Fujikawa
发明人： Seiichiro Hirahara , Nobuyoshi Fujikawa
IPC分类号： C04B35/46 , C04B35/465 , C04B35/468 , H01B3/12 , H01P7/10
CPC分类号： C04B35/465 , C04B35/4686 , C04B35/4688 , H01B3/12
摘要： In a dielectric ceramic composed of a La.sub.2 O.sub.3 -CaO-TiO.sub.2 -MgO type or a BaO-Nd.sub.2 O.sub.3 -TiO.sub.2 type, the oxygen vacancy concentration of the ceramic is controlled below 7.times.10.sup.18 /cm.sup.3 by, for example, annealing the mixture after firing, or heat-treating the mixture after firing. The Q value of the dielectric ceramic can be markedly increased. In addition, ceramics having stable properties can be produced. Thus, the dielectric ceramics can fully cope with high frequencies and large electrification.
摘要翻译：在由La2O3-CaO-TiO2-MgO型或BaO-Nd2O3-TiO2型构成的介电陶瓷中，陶瓷的氧空位浓度通过例如烧制后的混合物退火或加热而控制在7×10 18 / cm 3以下在烧制后加入混合物。电介质陶瓷的Q值可以显着增加。此外，可以制造具有稳定性能的陶瓷。因此，电介质陶瓷可以充分应对高频和大电气化。

4. 发明授权

US5198395A Dielectric ceramic composition for high frequency use 失效
标题翻译：用于高频电介质陶瓷组合物
公开(公告)号：US5198395A
公开(公告)日：1993-03-30
申请号：US692131
申请日：1991-04-26
申请人： Hideki Utaki , Toyomi Nishi , Nobuyoshi Fujikawa
发明人： Hideki Utaki , Toyomi Nishi , Nobuyoshi Fujikawa
IPC分类号： C04B35/46 , C04B35/465 , H01B3/12 , H05K1/03
CPC分类号： H01B3/12 , C04B35/465 , H05K1/0306
摘要： A dielectric ceramic composition having a composition (mole %) expressed by the formula xMgO.yLa.sub.2 O.sub.3. xTiO.sub.2 wherein x, y and z are numerals that lie within a range surrounded by a line that couples the points a, b, c, d and e in FIG. 1. The composition can contain 0.01 to 3% by weight of MnO.sub.2 with respect to chief components consisting of the above three components. The composition can be effectively used as a resonator or a circuit board in the microwave frequency region.

5. 发明授权

US4701827A Multilayer ceramic capacitor 失效
标题翻译：多层陶瓷电容器
公开(公告)号：US4701827A
公开(公告)日：1987-10-20
申请号：US827444
申请日：1986-02-10
申请人： Nobuyoshi Fujikawa , Syuichi Kawaminami , Nobuo Yokoe
发明人： Nobuyoshi Fujikawa , Syuichi Kawaminami , Nobuo Yokoe
IPC分类号： H01G4/008 , H01G4/12 , H01G4/232 , H01G1/00
CPC分类号： H01G4/008 , H01G4/2325
摘要： Disclosed is a multilayer ceramic capacitor comprising internal electrodes composed of nickel and terminations composed of a composition comprising at least one member selected from nickel, cobalt and copper and a zinc borosilicate glass. A zinc borosilicate glass comprising 40 to 65 mole % of ZnO, 20 to 40 mole % of B.sub.2 O.sub.3 and 10 to 35 mole % of SiO.sub.2 is especially suitable as the glass component. The terminations are excellent in adhesion to the internal electrodes and adhesion to a dielectric body.
摘要翻译：公开了一种多层陶瓷电容器，其包括由镍构成的内部电极和由包含选自镍，钴和铜中的至少一种的成分和硼硅酸锌玻璃组成的端子的端接。包含40〜65摩尔％的ZnO，20〜40摩尔％的B 2 O 3和10〜35摩尔％的SiO 2的硼硅酸锌玻璃特别适合作为玻璃成分。所述端接对于内部电极的粘附性和对绝缘体的粘合性优异。

6. 发明授权

US5650367A Dielectric ceramic composition 失效
标题翻译：介电陶瓷组合物
公开(公告)号：US5650367A
公开(公告)日：1997-07-22
申请号：US545459
申请日：1995-10-19
申请人： Nobuyoshi Fujikawa , Yoshihiro Fujioka , Yasushi Yamakuchi , Shin-ichi Osawa , Hiroshi Ojima
发明人： Nobuyoshi Fujikawa , Yoshihiro Fujioka , Yasushi Yamakuchi , Shin-ichi Osawa , Hiroshi Ojima
IPC分类号： C04B35/468
CPC分类号： C04B35/468
摘要： A dielectric ceramic composition containing, per 100 parts by weight of BaTiO.sub.3, at least either one of Nb.sub.2 O.sub.5 or Ta.sub.2 O.sub.5 in an amount of from 0.8 to 3.5 parts by weight, MgO in an amount of from 0.06 to 0.7 parts by weight, oxides of rare earth elements in an amount of from 0.005 to 0.520 parts by weight, and MnO in an amount of from 0.01 to 0.30 parts by weight in the form of MnCO.sub.3, the molar ratio of MgO to either Nb.sub.2 O.sub.5 or Ta.sub.2 O.sub.5 being from 0.5 to 2.2. The dielectric ceramic composition has a dielectric constant of not smaller than 2500, is fired at a temperature of not higher than 1300.degree. C., exhibits a change of capacitance depending upon the temperature satisfying X7R of the IEA Standards, a dielectric loss of not larger than 2.5%, a small voltage dependence, and an insulation resistance of not smaller than 10.sup.4 M.OMEGA., and is suited as a material for producing ceramic capacitors and resonators.
摘要翻译：一种电介质陶瓷组合物，其中，相对于100重量份的BaTiO 3，含有0.8〜3.5重量份的Nb2O5或Ta2O5中的至少一种，MgO为0.06〜0.7重量份，稀有氧化物土壤元素的量为0.005〜0.520重量份，MnO为0.01〜0.30重量份，MnCO 3的摩尔比，Nb 2 O 5或Ta 2 O 5的摩尔比为0.5〜2.2。电介质陶瓷组合物的介电常数不小于2500，在不高于1300℃的温度下烧结，根据满足IEA标准X7R的温度，电容变化，介电损耗不大小于2.5％，电压依赖性小，绝缘电阻不小于104M的OMEGA，并且适合用作制造陶瓷电容器和谐振器的材料。

7. 发明授权

US5504044A Dielectric ceramic composition for high-frequency applications 失效
标题翻译：用于高频应用的介电陶瓷组合物
公开(公告)号：US5504044A
公开(公告)日：1996-04-02
申请号：US337609
申请日：1994-11-10
申请人： Yoshihiro Okawa , Seiichiro Hirahara , Nobuyoshi Fujikawa
发明人： Yoshihiro Okawa , Seiichiro Hirahara , Nobuyoshi Fujikawa
IPC分类号： C04B35/453 , C04B35/495 , H01B3/12 , H01G4/12 , C04B35/00 , C04B35/03
CPC分类号： H01B3/12 , C04B35/453 , C04B35/495 , H01G4/1209
摘要： A dielectric ceramic composition for high-frequency applications comprising a composite oxide containing at least Ba, Zn and W as metal elements. When the composition formula of the composite oxide is expressed in the form of molar ratios of the metal oxides, the molar ratios of the metal oxides lie within particular ranges. The ceramic composition exhibits a high dielectric constant and a large Q-value in high-frequency regions.
摘要翻译：一种用于高频应用的电介质陶瓷组合物，其包含至少含有Ba，Zn和W作为金属元素的复合氧化物。当复合氧化物的组成式以金属氧化物的摩尔比的形式表示时，金属氧化物的摩尔比在特定范围内。陶瓷组合物在高频区域表现出高介电常数和大的Q值。

8. 发明授权

US4628404A Dielectric composition and laminated capacitor 失效
标题翻译：电介质组成和叠层电容器
公开(公告)号：US4628404A
公开(公告)日：1986-12-09
申请号：US817517
申请日：1986-01-09
申请人： Nobuo Yokoe , Takashi Okawa , Nobuyoshi Fujikawa , Kazuyoshi Yamashita
发明人： Nobuo Yokoe , Takashi Okawa , Nobuyoshi Fujikawa , Kazuyoshi Yamashita
IPC分类号： C04B35/46 , C04B35/462 , H01B3/12 , H01G4/12 , H01G4/10
CPC分类号： C04B35/462 , H01G4/1218
摘要： A dielectric ceramic composition prepared by adding 0.1 to 1.3% of B.sub.2 O.sub.3, 1.0 to 3.0% of SiO.sub.2 and 0.5 to 3.0% of ZnO to a composition comprising 18.0 to 27.0% of BaTiO.sub.2, 31.6 to 36.3% of Nd.sub.2 O.sub.3, 27.6 to 35.5% of TiO.sub.2, 2.5 to 8.1% of Bi.sub.2 O.sub.3 and 5.6 to 9.0% of Pb.sub.3 O.sub.4, all percentages being by weight. This dielectric composition has a high dielectric constant and a temperature coefficient controlled within a narrow range and can be fired at relatively low temperatures. Because of these properties, it is used as a multilayer ceramic capacitor in combination with an electrode composed of an Ag-Pd alloy containing a major amount of Ag.
摘要翻译：通过将0.1〜1.3％的B 2 O 3，1.0〜3.0％的SiO 2和0.5〜3.0％的ZnO添加到包含18.0〜27.0％的BaTiO 2，31.6〜36.3％的Nd 2 O 3，27.6〜35.5％的BaTiO 2的组合物中制备的电介质陶瓷组合物 TiO 2，2.5〜8.1％的Bi 2 O 3和5.6〜9.0％的Pb 3 O 4，所有的百分数均为重量百分比。该电介质组合物具有高介电常数和温度系数控制在窄范围内并且可以在相对低的温度下烧制。由于这些性质，它被用作与包含主要量的Ag的Ag-Pd合金组成的电极的多层陶瓷电容器。

9. 发明授权

US5432135A Dielectric ceramic composition for high frequency 失效
标题翻译：介电陶瓷组合物用于高频
公开(公告)号：US5432135A
公开(公告)日：1995-07-11
申请号：US168645
申请日：1993-12-16
申请人： Seiichi Hirahara , Nobuyoshi Fujikawa , Tsuguo Koyasu , Sumie Koyasu
发明人： Seiichi Hirahara , Nobuyoshi Fujikawa , Tsuguo Koyasu , Sumie Koyasu
IPC分类号： C04B35/01 , C04B35/495 , C04B35/04
CPC分类号： C04B35/01 , C04B35/495
摘要： A dielectric ceramic composition for high frequency-use comprising a composition (A) containing at least Ba, Mg and W as metal elements represented by a composition formula expressed in a mole ratio of these metal elements, xBaO.yMgO.zWO.sub.3, in which x, y and z satisfy the following relation40.ltoreq.x.ltoreq.60,13.ltoreq.y.ltoreq.40,20.ltoreq.z.ltoreq.30, andx+y+z=100,and at least one element (B) selected from Group 3a elements and Group 4a elements in the periodic table, Sn, Mn and Ca. A ceramic molded product composed of this composition has a high dielectric constant and a high Q value in a high frequency region of at least 10 GHz but also has a temperature coefficient (.tau.f) of a resonance frequency which is not shifted too much to a negative side and has a suitable value. Accordingly, the composition may be preferably used as a resonator and a dielectric substrate material for MIC in a high frequency region of a microwave or a millimeter wave.
摘要翻译：一种用于高频用途的电介质陶瓷组合物，其包含至少含有Ba，Mg和W作为金属元素的组合物（A），其由以这些金属元素摩尔比表示的组成式表示，xBaO.yMgO.zWO3，其中x ，y和z满足以下关系40

10. 发明授权

US5356844A Dielectric ceramic composition and dielectric resonator 失效
标题翻译：介电陶瓷组合物和介质谐振器
公开(公告)号：US5356844A
公开(公告)日：1994-10-18
申请号：US82024
申请日：1993-06-23
申请人： Seiichiro Hirahara , Nobuyoshi Fujikawa , Shinichi Enami , Toyomi Nishi
发明人： Seiichiro Hirahara , Nobuyoshi Fujikawa , Shinichi Enami , Toyomi Nishi
IPC分类号： C04B35/46 , C04B35/478 , H01B3/12 , H01P7/10
CPC分类号： C04B35/465 , C01G23/002 , C04B35/478 , H01P7/10 , C01P2006/40 , C04B2235/3201 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3258 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3296 , C04B2235/3409 , C04B2235/3418 , C04B2235/40 , C04B2235/5436 , C04B2235/6021 , C04B2235/604
摘要： A dielectric ceramic composition which contains a rare earth element (Ln), Al, Ca and Ti as metal elements and which when these components are expressed in terms of a mole ratio as aLn.sub.2 O.sub.x.bAl.sub.2 O.sub.3. cCaO.dTiO.sub.2, the values of a, b, c, d and x satisfy a+b+c+d=1, 0.056.ltoreq.a.ltoreq.0.214, 0.056.ltoreq.b.ltoreq.0.214, 0.286.ltoreq.c.ltoreq.0.500, 0.230.ltoreq.d.ltoreq.0.470, and 3.ltoreq.x.ltoreq.4. The dielectric having the above composition is disposed between a pair of input and output terminals to constitute a dielectric resonator. The dielectric ceramic composition exhibits such dielectric properties as a large dielectric constant at high frequencies, a large Q-value and a small temperature coefficient of resonance frequency. Satisfactory properties are exhibited when the dielectric ceramic composition is used for a resonator or as a material of circuit board for high-frequency applications.
摘要翻译：含有稀土元素（Ln），Al，Ca和Ti作为金属元素的电介质陶瓷组合物，当这些成分以摩尔比表示为L 2 O x·b Al 2 O 3时。 cCaO.dTiO 2，a，b，c，d和x的值满足a + b + c + d = 1，0.056

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