专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5484753A Dielectric ceramic compositions 失效
标题翻译：介电陶瓷组合物
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。

2. 发明授权

US5525562A Dielectric ceramic compound 失效
标题翻译：介电陶瓷化合物
公开(公告)号：US5525562A
公开(公告)日：1996-06-11
申请号：US363901
申请日：1994-12-27
申请人： Hiroshi Kagata , Junichi Kato , Keiji Nishimoto
发明人： Hiroshi Kagata , Junichi Kato , Keiji Nishimoto
IPC分类号： C04B35/465 , C04B35/495 , C04B35/497 , H01B3/12 , H01P7/10 , C04B35/46
CPC分类号： C04B35/497 , C04B35/465 , C04B35/495 , H01B3/12 , H01P7/10
摘要： This invention provides a dielectric ceramic compound for microwave use which has a high dielectric constant and a high Q value, and which also has a small temperature coefficient of a resonant frequency. The dielectric ceramic compound comprising a compound represented by Formula 1 at least includes calcium oxide, magnesium oxide, zinc oxide, niobium oxide, tantalum oxide, and titanium oxide, (Formula 1)Ca[{(Mg.sub.1-x Zn.sub.x).sub.1/3 (Nb.sub.1-z Ta.sub.z).sub.2/3 }.sub.1-y Ti.sub.y ]O.sub.3wherein x and y are present within an area formed by the following apexes A, B, C, and D, excluding an area on straight line AB,A: (x, y)=(0.0, 0.0)B: (x, y)=(0.0, 0.5)C: (x, y)=(1.0, 0.55)D: (x, y)=(1.0, 0.0)and z is present in the range of 0.0.ltoreq.z.ltoreq.1.0, excluding z=1.0 when y=0.0.
摘要翻译：本发明提供一种具有高介电常数和高Q值的微波用介电陶瓷化合物，并且其谐振频率的温度系数也较小。包含式1化合物的介电陶瓷化合物至少包括氧化钙，氧化镁，氧化锌，氧化铌，氧化钽和氧化钛，（式1）Ca [{（（Mg1-xZnx））1/3（Nb1 -zTaz）2/3} 1-yTiy] O3其中x和y存在于由以下顶点A，B，C和D形成的区域中，除了直线AB上的区域，A：（x，y） =（0.0,0.0）B：（x，y）=（0.0,0.5）C：（x，y）=（1.0,0.55）D：（x，y）=（1.0,0.0） 0.0≤z≤0.0的范围，当y = 0.0时不包括z = 1.0。

3. 发明授权

US5824616A Dielectric ceramic compositions 失效
标题翻译：介电陶瓷组合物
公开(公告)号：US5824616A
公开(公告)日：1998-10-20
申请号：US606693
申请日：1996-02-22
申请人： Hiroshi Kagata , Junichi Kato , Keiji Nishimoto
发明人： Hiroshi Kagata , Junichi Kato , Keiji Nishimoto
IPC分类号： C04B35/46 , C04B35/465 , C04B35/495 , C04B35/50 , H01B3/12 , H01G4/12 , H01P7/10
CPC分类号： C04B35/495 , C04B35/465 , H01B3/12 , H01P7/10
摘要： The invention provides a dielectric ceramic composition represented by Formula 1: (1-x)Re.sub.1+a (A.sub.2/3 Nb.sub.1/3)O.sub.3+1.5a -xB.sub.1+b TiO.sub.3+bFormula 1 wherein Re represents a component comprising a rare earth element, A represents a component comprising at least one element selected from the group consisting of Mg and Zn, B represents a component comprising Ca, x represents a number in the range of 0.40 to 0.80, a represents a number in the range of 0 to 0.15, and b represents a number in the range of 0 to 0.08. The composition has a high relative permittivity, a Q value and a small resonant frequency temperature coefficient. The composition is useful in miniaturizing dielectric resonators.
摘要翻译：本发明提供由式1表示的介电陶瓷组合物：（1-x）Re1 + a（A2 / 3Nb1 / 3）O3 + 1.5a-xB1 + bTiO3 + b，其中Re表示包含稀土元素的组分，A表示包含选自Mg和Zn中的至少一种元素的成分，B表示包含Ca的成分，x表示0.40〜0.80的数，a表示0〜0.15的数，b表示表示0〜0.08的范围的数。该组合物具有高的相对介电常数，Q值和小的共振频率温度系数。该组合物可用于使介电谐振器小型化。

4. 发明授权

US5629252A Method for manufacturing a dielectric ceramic composition dielectric ceramic and multilayer high frequency device 失效
标题翻译：电介质陶瓷组合物介电陶瓷和多层高频器件的制造方法
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。

5. 发明授权

US5459115A Composition of dielectric ceramics 失效
标题翻译：介电陶瓷的组成
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

6. 发明授权

US5219808A Dielectric ceramic composition 失效
标题翻译：电介质陶瓷组合物
公开(公告)号：US5219808A
公开(公告)日：1993-06-15
申请号：US913203
申请日：1992-07-15
申请人： Hiroshi Kagata , Junichi Kato , Keiji Nishimoto
发明人： Hiroshi Kagata , Junichi Kato , Keiji Nishimoto
IPC分类号： C04B35/497 , H01B3/12 , H01G4/12
CPC分类号： H01G4/1254 , C04B35/497 , H01B3/12
摘要： The present invention provides a composition of dielectric ceramic composition to be used in the frequency region of microwaves.The composition contains lead oxide, calcium oxide, iron, oxide, tantalum oxide and niobium oxide, and is represented by (Pb.sub.1-x Ca.sub.x).sub.1+a {Fe.sub.178 (Ta.sub.1-y Nb.sub.y).sub.178 }O.sub.3+a wherein x, y and a satisfy, respectively, 0.44.ltoreq.x.ltoreq.0.63, 0.0.ltoreq.y.ltoreq.1.0 and 0.0.ltoreq.a.ltoreq.0.08.

7. 发明授权

US06762142B2 Dielectric ceramic and dielectric device 失效
标题翻译：介质陶瓷和电介质器件
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。

8. 发明授权

US5350639A Dielectric ceramic for use in microwave device, a microwave dielectric ceramic resonator dielectric ceramics 失效
标题翻译：介质陶瓷用于微波器件，微波介质陶瓷谐振器
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

9. 发明授权

US06835681B2 Dielectric ceramic composition and dielectric device 失效
标题翻译：介电陶瓷组合物和电介质器件
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。

10. 发明授权

US5929727A Dielectric resonator, method for manufacturing the same, filter and communication apparatus 失效
标题翻译：介质谐振器及其制造方法，滤波器及通信装置
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式