公开(公告)号：US5484753A

公开(公告)日：1996-01-16

申请号：US386459

申请日：1995-02-10

申请人： Hiroshi Kagata ,  Junichi Kato ,  Tatsuya Inoue ,  Ichiro Kameyama ,  Keiji Nishimoto

发明人： Hiroshi Kagata ,  Junichi Kato ,  Tatsuya Inoue ,  Ichiro Kameyama ,  Keiji Nishimoto

IPC分类号： C04B35/465 ,  H01B3/12 ,  C04B35/46

CPC分类号： C04B35/465 ,  H01B3/12

摘要： This invention provides a dielectric ceramic composition which has a high dielectric constant and a high Q value, and also has lower temperature coefficient of resonance frequency. The dielectric ceramic composition is attained by sintering composition which comprises a first component from 40 to 98 wt % and a second component from 2 to 60 wt %. The first component is represented by the following formula,Ca{(Mg.sub.1/3 Nb.sub.2/3).sub.1-x Ti.sub.x }O.sub.3where 0.ltoreq.x.ltoreq.0.50. The second component includes at least one element selected from the group consisting of SiO.sub.2 and B.sub.2 O.sub.3.

摘要翻译： 本发明提供了具有高介电常数和高Q值的介电陶瓷组合物，并且还具有较低的共振频率温度系数。 电介质陶瓷组合物通过烧结组合物获得，该组合物包含40至98重量％的第一组分和2至60重量％的第二组分。 第一组分由下式表示：Ca {（Mg1 / 3Nb2 / 3）1-xTix} O3，其中0≤x≤0.50。 第二组分包括至少一种选自SiO 2和B 2 O 3的元素。

公开(公告)号：US5350639A

公开(公告)日：1994-09-27

申请号：US941961

申请日：1992-09-08

申请人： Tatsuya Inoue ,  Hiroshi Kagata ,  Junichi Kato ,  Ichiro Kameyama

发明人： Tatsuya Inoue ,  Hiroshi Kagata ,  Junichi Kato ,  Ichiro Kameyama

IPC分类号： H01P7/10 ,  H01P7/00

CPC分类号： H01P7/10 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12882

摘要： Dielectric ceramics a microwave device made of (Bi.sub.2 O.sub.3).sub..times. (Nb.sub.2 O.sub.5).sub.1-x includes at least one of subcomponents of CuO and V.sub.2 O.sub.5, wherein the composition ratio x is fallen into a range of 0.48.ltoreq..times..ltoreq.0.51, an atomic ratio AR1 defined by the following equation:AR1=(the number of Cu atoms of the CuO)/ARO,whereARO=(the number of Bi atoms of the (Bi.sub.2 O.sub.3).sub.x (Nb.sub.2 O.sub.5).sub.1-x)+(the number of Nb atoms of the (Bi.sub.2 O.sub.3).sub.x (Nb.sub.2 O.sub.5).sub.1-x) is fallen into a range of 0

摘要翻译： 介电陶瓷由（Bi 2 O 3）x（Nb 2 O 5）1-x制成的微波装置包括CuO和V 2 O 5的次要成分中的至少一种，其中组成比x落在0.48×0.5≤0.51的范围内， 原子比AR1由以下等式定义：AR1 =（CuO的Cu原子数）/ ARO，其中ARO =（（Bi 2 O 3）x（Nb 2 O 5）1-x）的Bi原子数+ 的（Bi 2 O 3）x（Nb 2 O 5）1-x的Nb原子）落入0

公开(公告)号：US5769988A

公开(公告)日：1998-06-23

申请号：US752837

申请日：1996-11-20

申请人： Hiroshi Kagata ,  Ichiro Kameyama ,  Tatsuya Inoue ,  Junichi Kato

发明人： Hiroshi Kagata ,  Ichiro Kameyama ,  Tatsuya Inoue ,  Junichi Kato

IPC分类号： C04B35/00 ,  C04B35/64 ,  C04B41/51 ,  C04B41/88 ,  H01G4/12 ,  H01P7/04 ,  H01P11/00 ,  C04B37/00 ,  B05D5/12

CPC分类号： C04B41/009 ,  C04B41/5116 ,  C04B41/88 ,  H01P11/008 ,  C04B2111/00844

摘要： A method of manufacturing a ceramic electronic component having a dielectric ceramic and a conductor containing Ag as a main component, wherein a dielectric resonator with a high Q value is produced by heat treating at 400.degree. C. or more in an atmosphere containing 10% or less by volume of oxygen after sintering the dielectric ceramic. Using a BaO--TiO.sub.2 --Nd.sub.2 O.sub.3 --Bi.sub.2 O.sub.3 based composition (.epsilon..sub.r =92, Qf=5000 GHz) as a dielectric, a coaxial type dielectric ceramic is produced by granulating calcined powder of the dielectric and then compacting the powder, followed by sintering. A dielectric resonator of .lambda./4 is produced by coating the dielectric ceramic with Ag paste at a position other than either the upper or lower side and then burning the paste. Thereafter, the electrodes(1,4) are formed by burning the paste at 400.degree. C. or more in an atmosphere containing 10% or less by volume of oxygen. The coaxial type dielectric resonator accepts electromagnetic waves from the open end and obtains output by utilizing TEM mode.

摘要翻译： 一种制造具有介电陶瓷和含有Ag作为主要成分的导体的陶瓷电子部件的制造方法，其特征在于，在含有10％以上的气氛中，在400℃以上的温度下进行热处理， 烧结介电陶瓷后的氧气体积小。 使用BaO-TiO2-Nd2O3-Bi2O3基组合物（ε= r = 92，Qf = 5000GHz）作为电介质，通过对电介质的煅烧粉末进行造粒，然后压实粉末，随后烧结来制造同轴型电介质陶瓷。 通过在不同于上侧或下侧的位置用Ag浆料涂覆电介质陶瓷，然后燃烧该糊料来制造λ/ 4的介质谐振器。 此后，通过在含有10体积％以下氧气的气氛中，在400℃以上的温度下将糊状物烧成而形成电极（1,4）。 同轴型介质谐振器从开口端接受电磁波，并利用TEM模式获得输出。

公开(公告)号：US5273944A

公开(公告)日：1993-12-28

申请号：US014505

申请日：1993-02-08

申请人： Hiroshi Kagata ,  Tatsuya Inoue ,  Junichi Kato ,  Ichiro Kameyama

发明人： Hiroshi Kagata ,  Tatsuya Inoue ,  Junichi Kato ,  Ichiro Kameyama

IPC分类号： C04B35/00 ,  C04B35/495 ,  H01B3/12 ,  H01P1/203 ,  H01P1/205 ,  H01P7/08 ,  H01P7/10 ,  H01P11/00

CPC分类号： H01B3/12 ,  C04B35/495 ,  H01P7/10

摘要： A dielectric ceramic composition which consists essentially of bismuth oxide, calcium oxide and niobium oxide, wherein when the dielectric ceramic composition is expressed by a formula xBiO.sub.3/2 -yCaO-zNbO.sub.5/2 and the x, y and z are plotted in a ternary system diagram so as to total 1.0, the x, y and z fall in a region enclosed by a pentagon having the following vertexes A, B, C, D and E,A: (x, y, z)=(0.55, 0.16, 0.29)B: (x, y, z)=(0.5, 0.21, 0.29)C: (x, y, z)=(0.44, 0.24, 0.32)D: (x, y, z)=(0.44, 0.2, 0.36) andE: (x, y, z)=(0.5, 0.175, 0.325); anda multilayer microwave device including a dielectric layer formed by the dielectric ceramic composition.

公开(公告)号：US5459115A

公开(公告)日：1995-10-17

申请号：US124552

申请日：1993-09-22

申请人： Hiroshi Kagata ,  Tatsuya Inoue ,  Ichiro Kameyama ,  Junichi Kato ,  Keiji Nishimoto

发明人： Hiroshi Kagata ,  Tatsuya Inoue ,  Ichiro Kameyama ,  Junichi Kato ,  Keiji Nishimoto

IPC分类号： C04B35/497 ,  C04B35/499 ,  H01B3/12 ,  H01G4/12 ,  C04B35/46

CPC分类号： C04B35/497 ,  C04B35/499 ,  H01B3/12 ,  H01G4/1254

摘要： The dielectric composition according to the present invention is used in a microwave band and is characterized in having a low sintering temperature and a property to be controllable independently in the respect of a dielectric constant and a temperature coefficient of the resonant frequency.The dielectric composition is represented by the formula:A.sub.1+a BO.sub.3+a (a.ltoreq.0)wherein A site mainly contains at least Pb atom and Ca atom which is more than 20 wt % of A and further may contain Sr or Ba atom, and B site mainly contains Fe and Nb atoms and further contains at least one atom selected from the group comprising Ti and W and may contain at least one atom selected from the group comprising Cr, Mn, Co, Ni, Cu, Zn, Si, Al, Mg, Bi and Sb.

摘要翻译： 根据本发明的电介质组合物用于微波带，其特征在于具有低介电常数和共振频率的温度系数的烧结温度和独立控制的性质。 电介质组成由下式表示：A1 + aBO3 + a（a

公开(公告)号：US5929727A

公开(公告)日：1999-07-27

申请号：US947739

申请日：1997-10-10

申请人： Hiroshi Kagata ,  Tatsuya Inoue ,  Junichi Kato ,  Hiroshi Sogo

发明人： Hiroshi Kagata ,  Tatsuya Inoue ,  Junichi Kato ,  Hiroshi Sogo

IPC分类号： H01P7/04

CPC分类号： H01P7/04

摘要： A coaxial dielectric resonator which is prismatic and has a through hole in a vertical direction, has such feature that each base side of said prism being no more than 1.6 mm, a diameter of said through hole being no more than 0.8 mm, said coaxial dielectric resonator having an electrode portion on a surface thereof and on an inner surface of said through hole.

摘要翻译： 所述同轴电介质谐振器是棱柱形的并且在垂直方向上具有通孔，其特征在于，所述棱镜的每个基极侧不大于1.6mm，所述通孔的直径不大于0.8mm，所述同轴电介质 谐振器，其表面上具有电极部分，并且在所述通孔的内表面上。

公开(公告)号：US5273943A

公开(公告)日：1993-12-28

申请号：US21441

申请日：1993-02-24

申请人： Ichirou Kameyama ,  Hiroshi Kagata ,  Tatsuya Inoue ,  Junichi Kato

发明人： Ichirou Kameyama ,  Hiroshi Kagata ,  Tatsuya Inoue ,  Junichi Kato

IPC分类号： C04B35/497 ,  H01B3/12 ,  H01G4/10 ,  C04B35/00 ,  H01G4/12

CPC分类号： H01B3/12 ,  C04B35/497

摘要： A dielectric ceramic composition which consists essentially of a sintered mixture represented by the formulaxBiO.sub.3/2 -y[(Ca.sub.1-a-b Zn.sub.a Pb.sub.b)O]-zNbO.sub.5/2wherein x, y and z independently represent a molar fraction and x+y+z=1, x, y and z are within a pentagonal range surrounded by lines, inclusive, plotted between points, A, B, C, D and E in a ternary ceramic composition of FIG. 1 where a is an atomic ratio of substituted Zn to Ca and b is an atomic ratio of substituted Pb to Ca, and 0

公开(公告)号：US5629252A

公开(公告)日：1997-05-13

申请号：US662700

申请日：1996-06-13

申请人： Keiji Nishimoto ,  Hiroshi Kagata ,  Junichi Kato ,  Tatsuya Inoue

发明人： Keiji Nishimoto ,  Hiroshi Kagata ,  Junichi Kato ,  Tatsuya Inoue

IPC分类号： C04B35/465 ,  C04B35/495 ,  H01G4/12 ,  C04B35/46

CPC分类号： H01G4/1218 ,  C04B35/465 ,  C04B35/495 ,  H01G4/1254

摘要： A dielectric ceramic composition that can be sintered at a low temperature of around 1000.degree. C. and also can have a high dielectric constant, a high Q value and small temperature coefficient at a resonant frequency includes a glass component that promotes sintering. The dielectric ceramics include: the main component comprising calcium oxide, magnesium oxide, niobium oxide and titanium oxide and expressed by the Formula: Ca{(Mg.sub. 1/3 Nb.sub. 2/3).sub.1-x Ti.sub.x }O.sub.3 (wherein X is more than 0 not more than 0.50) within the range of not less than 40 parts by weight nor more than 98 parts by weight; the accessory component comprising at least one selected from SiO.sub.2 and B.sub.2 O.sub.3 within the range of not less than 2 parts by weight nor more than 60 parts by weight; and at least one oxide selected from the group consisting of MgO, NiO, CuO, MNO.sub.2 and WO.sub.3 within the range of not less than 0.1 parts by weight nor more than 10 parts by weight. Consequently, the dielectric ceramic composition of the present invention can be sintered at low temperature. The dielectric ceramic composition also has a stability in composition and high Q value, which can used for the dielectric ceramic and multilayer high frequency device.

摘要翻译： 可以在约1000℃的低温下烧结并且在共振频率下也可以具有高介电常数，高Q值和小的温度系数的介电陶瓷组合物包括促进烧结的玻璃成分。 电介质陶瓷包括：主要成分包括氧化钙，氧化镁，氧化铌和氧化钛，并由下式表示：Ca {（Mg + E，fra 1/3 + EE Nb + E，fra 2/3 + EE） 1-xTix} O 3（其中X大于0不大于0.50）在不小于40重量份的范围内，不大于98重量份; 所述辅助成分包含选自SiO 2和B 2 O 3中的至少一种，其含量在不小于2重量份，不大于60重量份的范围内; 以及选自MgO，NiO，CuO，MNO 2和WO 3中的至少一种氧化物，其含量在0.1重量份以上，10重量份以下。 因此，本发明的电介质陶瓷组合物可以在低温下烧结。 电介质陶瓷组合物的组成稳定性和Q值高，可用于介电陶瓷和多层高频器件。

公开(公告)号：US06762142B2

公开(公告)日：2004-07-13

申请号：US10251585

申请日：2002-09-19

申请人： Kojiro Okuyama ,  Junichi Kato ,  Hiroshi Kagata ,  Kenji Iijima

发明人： Kojiro Okuyama ,  Junichi Kato ,  Hiroshi Kagata ,  Kenji Iijima

IPC分类号： C04B35465

CPC分类号： C04B35/49 ,  C04B35/6262 ,  C04B2235/3206 ,  C04B2235/3249 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3284 ,  C04B2235/604 ,  C04B2235/786 ,  C04B2235/94 ,  C04B2235/96 ,  H01P7/10

摘要： A dielectric ceramic is made of a sintered body of a complex oxide including at least one element selected from the group consisting of Zr, Ti and Mn, at least one element selected from the group consisting of Mg, Zn and Co, and at least one element selected from the group consisting of Nb and Ta, wherein, the complex oxide is represented by a formula xZrO2-yTiO2-zA(1+w)/3B(2−w)/3O2 where ‘A’ in the formula denotes at least one element selected from the group (A) consisting of Mg, Zn and Co, ‘B’ denotes at one element selected from the group (B) consisting of Nb and Ta; x, y, z and w denote values in the respective ranges of 0.20≦x≦0.55, 0.40≦y≦0.55, 0.05≦z≦0.25, and 0≦w≦0.30, and x, y and z have a relationship represented as x+y+z=1; MnO is present in a range of 0.1 mol % to 1.0 mol % to the complex oxide; and an average grain size of the dielectric ceramic is from 10 &mgr;m to 70 &mgr;m, thereby providing a dielectric ceramic that has a high dielectric constant (&egr;r) and an unloaded (Qu) value even in a comparatively low frequency region as a microwave region i.e., in a range of 0.4 GHz to 2.4 GHz and that realizes a desired temperature coefficient (&tgr;f) of a resonant frequency with a high mechanical strength, and thus a dielectric device using the dielectric ceramic is provided.

摘要翻译： 电介质陶瓷由包含选自Zr，Ti和Mn中的至少一种元素的复合氧化物的烧结体，选自Mg，Zn和Co中的至少一种元素和至少一种 元素选自Nb和Ta，其中复合氧化物由式xZrO2-yTiO2-zA（1 + w）/ 3B（2-w）/ 3O2表示，其中式中的“A”至少表示 选自由Mg，Zn和Co组成的组（A）中的一种元素，'B'表示选自Nb和Ta组成的组（B）中的一种元素; x，y，z和w分别表示0.20 <= x <= 0.55，0.40 <= y <= 0.55,0.05 <= z <= 0.25，0 <= w <0.30的各个范围内的值，x， y和z具有表示为x + y + z = 1的关系; MnO以0.1mol％至1.0mol％的范围存在于复合氧化物中; 并且电介质陶瓷的平均晶粒尺寸为10μm至70μm，从而提供即使在作为微波区域的较低频率区域中也具有高介电常数（ε）和无载（Qu）值的电介质陶瓷，即 ，在0.4GHz至2.4GHz的范围内，并且实现具有高机械强度的谐振频率的期望温度系数（tauf），因此提供了使用电介质陶瓷的电介质器件。

公开(公告)号：US06835681B2

公开(公告)日：2004-12-28

申请号：US10027620

申请日：2001-12-19

申请人： Kojiro Okuyama ,  Hiroshi Kagata ,  Junichi Kato ,  Hiroyuki Hase

发明人： Kojiro Okuyama ,  Hiroshi Kagata ,  Junichi Kato ,  Hiroyuki Hase

IPC分类号： C03C1400

CPC分类号： H01P1/20345 ,  C03C8/18 ,  C03C8/20 ,  C03C14/004 ,  C04B35/49 ,  H01G4/1245 ,  H01G4/1263 ,  H01G4/129

摘要： A dielectric ceramic composition containing a first component and a second component (25 to 80 wt %) is used. The first component is a complex oxide represented by Formula: xZrO2-yTiO2-zL(1+u)/3M(2−u)/3O2 (L is at least one element selected from the group consisting of Mg, Zn, Co, and Mn, and M is at least one element selected from the group consisting of Nb and Tb. x, y, z, and u are numerical values represented by x+y+z=1, 0.10≦x≦0.60, 0.20 ≦y≦0.60, 0.01≦z≦0.70, 0≦u≦1.90). The second component is a glass composition containing an oxide of at least one element selected from the group consisting of Si, B, Al, Ba, Ca, Sr, Zn, Ti, La, and Nd.

摘要翻译： 使用含有第一成分和第二成分（25〜80重量％）的电介质陶瓷组合物。 第一组分是由下式表示的复合氧化物：xZrO2-yTiO2-zL（1 + u）/ 3M（2-u）/ 3O2（L是选自Mg，Zn，Co和 Mn和M是选自Nb和Tb中的至少一种元素，x，y，z，u是由x + y + z = 1，0.10 <= x <= 0.60,0.20， = y <= 0.60,0.01 <= z <= 0.70,0 <= u <= 1.90）。 第二组分是含有选自Si，B，Al，Ba，Ca，Sr，Zn，Ti，La和Nd中的至少一种元素的氧化物的玻璃组合物。