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

US5296425A Ceramic materials of improved dielectric constants, and capacitors fabricated therefrom 失效
标题翻译：具有改善的介电常数的陶瓷材料和由其制造的电容器
公开(公告)号：US5296425A
公开(公告)日：1994-03-22
申请号：US98640
申请日：1993-07-28
申请人： Hirokazu Chazono , Yasuyuki Inomata , Kazuyuki Shibuya , Katsuyuki Horie
发明人： Hirokazu Chazono , Yasuyuki Inomata , Kazuyuki Shibuya , Katsuyuki Horie
IPC分类号： C04B35/465 , C04B35/49 , H01G4/12
CPC分类号： H01G4/1227 , C04B35/465 , C04B35/49 , H01G4/1245
摘要： A dielectric ceramic composition consists essentially of 100 mole parts of a major ingredient expressed by the formula,(Ba.sub.1-x Ca.sub.x)(Ti.sub.1-y Zr.sub.y)O.sub.3,where x is a numeral in the range of 0.01 to 0.10, and y is a numeral in the range of 0.10 to 0.24. To this major ingredient there are added from 0.10 to 2.0 mole parts of an erbium compound, and from 0.03 to 0.30 mole part of a manganese compound. Optionally, for the provision of low temperature sinterable ceramic compositions, there are also added from 0.03 to 0.40 mole part of a zinc compound and from 0.01 to 0.20 mole part of a silicon compound. Monolithic, solid dielectric capacitors are also disclosed which have ceramic bodies formulated from the above compositions.
摘要翻译：介电陶瓷组合物基本上由100摩尔份由式（Ba1-xCax）（Ti1-yZry）O3表示的主要成分组成，其中x是0.01至0.10的数字，y是数字范围为0.10〜0.24。对于该主要成分，添加0.10〜2.0摩尔份的铒化合物和0.03〜0.30摩尔的锰化合物。任选地，为了提供低温可烧结陶瓷组合物，还加入0.03至0.40摩尔份的锌化合物和0.01至0.20摩尔份的硅化合物。还公开了具有由上述组成配制的陶瓷体的单片固体介质电容器。

2. 发明授权

US5994253A Dielectric ceramic composition and ceramic electronic part with same 失效
标题翻译：介电陶瓷组合物与陶瓷电子部件相同
公开(公告)号：US5994253A
公开(公告)日：1999-11-30
申请号：US110417
申请日：1998-07-06
申请人： Nobuhiro Sasaki , Katsuyuki Horie , Hirokazu Chazono
发明人： Nobuhiro Sasaki , Katsuyuki Horie , Hirokazu Chazono
IPC分类号： C04B35/00 , C04B35/46 , C04B35/468 , H01B3/12 , H01G4/12
CPC分类号： C04B35/4686 , C04B35/4688 , H01G4/1227
摘要： A dielectric ceramic composition is comprised of a crystal structure phase of a tungsten bronze form, one titanate-barium phase or more titanate-barium phases selected from Ba.sub.2 Ti.sub.9 O.sub.20, BaTi.sub.2 O.sub.5, BaTi.sub.4 O.sub.9 and Ba.sub.4 Ti.sub.13 O.sub.30, and a fine crystal phase comprising an oxide of each of at least B, Ag and Mn, in which the crystal structure phase of the tungsten bronze form is formed with a limited amount of a compound oxide of Ba, Nd and Ti as a basic component and contains a limited amount of each of an oxide of at least Bi, Pb, Zn and Si. The dielectric ceramic composition can be fired at a temperature of 920.degree. C. or lower and sintered forming into a ceramic electronic part which has remarkably high dielectric characteristics, such as the dielectric constant of 60 or higher, the Q factor of 1,000 or higher, and the temperature coefficient .tau..epsilon.r of the relative dielectric constant .epsilon.r of .+-.60 ppm/.degree. C. or smaller. The ceramic electronic parts for high frequency are further provided with high electrical features and prepared at low costs.
摘要翻译：电介质陶瓷组合物由选自Ba2Ti9O20，BaTi2O5，BaTi4O9和Ba4Ti13O30的钨青铜型晶体结构相，一种钛酸钡 - 钡相或更多种钛酸钡 - 钡相组成，以及包含各自的氧化物的细晶相最少的B，Ag和Mn，其中青铜形式的晶体结构相形成有限量的作为碱性组分的Ba，Nd和Ti的复合氧化物，并且含有有限量的每种氧化物的最少的Bi，Pb，Zn和Si。电介质陶瓷组合物可以在920℃以下的温度下烧结，烧结成陶瓷电子部件，其电介质特性如介电常数为60以上，Q为1000以上，相对介电常数εr的温度系数τεr为+/- 60ppm /℃以下。高频陶瓷电子部件还具有较高的电气特性，且成本低廉。

3. 发明授权

US06346161B1 Laminated electronic part, method for the production thereof, and dielectric ceramic composition 失效
标题翻译：层压电子部件，其制造方法和电介质陶瓷组合物
公开(公告)号：US06346161B1
公开(公告)日：2002-02-12
申请号：US09656221
申请日：2000-09-06
申请人： Youichi Mizuno , Yasuyuki Inomata , Toshikazu Toba , Hirokazu Chazono
发明人： Youichi Mizuno , Yasuyuki Inomata , Toshikazu Toba , Hirokazu Chazono
IPC分类号： B32B3126
CPC分类号： H01B3/12 , C04B35/16 , C04B35/20 , H01G4/12 , H01G4/1227
摘要： The process for the production of a laminated electronic part containing a major component as represented by general formula: X(MgaZn(1−a))xSiOx+2—YAl2O3—ZSrTiO3 (where symbol a is defined by: 0.1≦a≦0.8; and symbol x is defined by: ≦x≦1.5); and an additive component comprised of a compound containing one or more elements selected from Nb, Ta and W; wherein a mole percent ratio of magnesium zinc silicate, (MgaZn(1−a))xSiOx+2, (X), to alumina, Al2O3, (Y), and strontium titanate, SrTiO3, (Z), each of which constitutes said major component, is set to be located in a region enclosed by a polygon having apexes at points A, B, C and D, as defined below, in a three-component composition map: A (94.9, 0.1, 5.0) B (85.0, 10.0, 5.0) C (65.0, 10.0, 25.0) D (65.0, 0.1, 34.9); and the additive component is contained at a rate of 0.01 to 0.2 mole percent, when translated into NbO5/2, TaO5/2 or WO3.
摘要翻译：制造包含以下通式表示的主要组分的层压电子部件的方法（其中符号a由下式定义：0.1 <= a <= 0.8;符号x由以下定义：<= x <= 1.5）; 以及由含有选自Nb，Ta和W中的一种或多种元素的化合物组成的添加剂组分;其中硅酸镁锌（MgaZn（1-a））xSiOx + 2，（X）与氧化铝的摩尔百分比，每个构成所述主要成分的Al 2 O 3，（Y）和钛酸锶SrTiO 3，（Z）被设定为位于由点A，B，C和D的顶点包围的区域中，如所定义在三组分组成图中，添加组分的含量为0.01-0.2摩尔％时，转化为NbO5 / 2，TaO5 / 2或WO3。

4. 发明授权

US6137672A Laminated electronic part, method for the production thereof, and dielectric ceramic composition 失效
标题翻译：层压电子部件，其制造方法和电介质陶瓷组合物
公开(公告)号：US6137672A
公开(公告)日：2000-10-24
申请号：US018912
申请日：1998-02-05
申请人： Youichi Mizuno , Yasuyuki Inomata , Toshikazu Toba , Hirokazu Chazono
发明人： Youichi Mizuno , Yasuyuki Inomata , Toshikazu Toba , Hirokazu Chazono
IPC分类号： C04B35/16 , C04B35/20 , H01B3/12 , H01G4/12 , H01G4/06 , C04B35/46
CPC分类号： H01B3/12 , C04B35/16 , C04B35/20 , H01G4/12 , H01G4/1227
摘要： The process for the production of a laminated electronic part containing a major component as represented by general formula:X(Mg.sub.a Zn.sub.(1-a)).sub.x SiO.sub.x+2 --YAl.sub.2 O.sub.3 --ZSrTiO.sub.3(where symbol a is defined by: 0.1.ltoreq.a.ltoreq.0.8; and symbol x is defined by: .ltoreq.x.ltoreq.1.5);and an additive component comprised of a compound containing one or more elements selected from Nb, Ta and W;wherein a mole percent ratio of magnesium zinc silicate, (Mg.sub.a Zn.sub.(1-a)).sub.x SiO.sub.x+2, (X), to alumina, Al.sub.2 O.sub.3, (Y), and strontium titanate, SrTiO.sub.3, (Z), each of which constitutes said major component, is set to be located in a region enclosed by a polygon having apexes at points A, B, C and D, as defined below, in a three-component composition map:______________________________________ A (94.9, 0.1, 5.0) B (85.0, 10.0, 5.0) C (65.0, 10.0, 25.0) D (65.0, 0.1, 34.9); ______________________________________ and the additive component is contained at a rate of 0.01 to 0.2 mole percent, when translated into NbO.sub.5/2, TaO.sub.5/2 or WO.sub.3.
摘要翻译：制备含有通式X（MgaZn（1-a））xSiOx + 2-YAl2O3-ZSrTiO3（其中符号a由以下定义的主要成分的层压电子部件的制造方法：0.1 < /=0.8;符号x由以下定义：

5. 发明申请

US20070104970A1 Perovskite ceramic powder and electronic component using same and manufacturing methods thereof 有权
公开(公告)号：US20070104970A1
公开(公告)日：2007-05-10
申请号：US11606108
申请日：2006-11-30
申请人： Chie Kawamura , Atsushi Tanada , Hirokazu Chazono
发明人： Chie Kawamura , Atsushi Tanada , Hirokazu Chazono
IPC分类号： B32B15/04
CPC分类号： C04B35/4682 , B82Y30/00 , C01G1/02 , C01G23/006 , C01P2002/34 , C01P2002/72 , C01P2002/77 , C01P2004/62 , C01P2006/12 , C01P2006/40 , C04B35/47 , C04B2235/441 , C04B2235/444 , C04B2235/449 , C04B2235/5409 , C04B2235/5445 , C04B2235/5454 , C04B2235/5481 , C04B2235/6025 , C04B2235/761 , C04B2235/79 , H01G4/1209 , H01G4/1227 , H01G4/30 , Y10T428/24917 , Y10T428/24926
摘要： A ceramic powder having a perovskite structure is manufactured by synthesizing a ceramic powder by a dry synthesis process and then heat-treating the synthesized ceramic powder in a solution. The dry synthesis method includes a solid phase synthesis method, an oxalate method, a citric acid method and a gas phase synthesis method.

6. 发明授权

US06710998B1 Multi-layer capacitor and method for manufacturing same 有权
标题翻译：多层电容器及其制造方法
公开(公告)号：US06710998B1
公开(公告)日：2004-03-23
申请号：US10610548
申请日：2003-07-02
申请人： Kenji Saito , Hirokazu Chazono
发明人： Kenji Saito , Hirokazu Chazono
IPC分类号： H01G420
CPC分类号： H01G4/30 , H01G4/35 , H01G4/385
摘要： A multi-layer capacitor includes a plurality of dielectric layers, a pair of external electrodes and a multiplicity of internal electrode layers, each internal electrode layer being interposed between every two neighboring dielectric layers. Said two neighboring internal electrode layers and the dielectric layer disposed therebetween form a unit capacitor so that the multiplicity of internal electrode layers and the dielectric layers therebetween constitute a stack of three or more vertically stacked unit capacitors. The electrostatic capacitance of the unit capacitor located at a center of the stack is greater than those of the unit capacitors located at an is upper end and a lower end of the stack.
摘要翻译：多层电容器包括多个电介质层，一对外部电极和多个内部电极层，每个内部电极层插在每两个相邻的电介质层之间。所述两个相邻的内部电极层和设置在其间的电介质层形成单位电容器，使得多个内部电极层和其间的电介质层构成三个或更多个垂直堆叠的单位电容器的堆叠。位于堆叠中心的单位电容器的静电电容大于位于堆叠的上端和下端的单位电容器的静电电容。

7. 发明授权

US5075819A Solid dielectric capacitor and method of manufacture 失效
标题翻译：固体电介质电容器及其制造方法
公开(公告)号：US5075819A
公开(公告)日：1991-12-24
申请号：US618655
申请日：1990-11-27
申请人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
发明人： Hiroshi Saito , Mutsumi Honda , Hiroshi Kishi , Hisamitsu Shizuno , Hirokazu Chazono
IPC分类号： C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , H01G4/1245 , Y10T29/435
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.) {(Ba.sub.k-x M.sub.x)O.sub.k (Ti.sub.1-y R.sub.y)O.sub.2-(y/2) }+.alpha.CaZrO.sub.3where M is either or both of calcium and strontium, R is a rare earth element or elements, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of an additive. The additive is a mixture of boric oxide or lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 degrees C. and then are heated at a lower temperature in an oxidative atmosphere.

8. 发明授权

US4999737A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US4999737A
公开(公告)日：1991-03-12
申请号：US482659
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/468 , C04B35/49 , H01G4/12
CPC分类号： C04B35/49 , C04B35/4682 , H01G4/1245
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.){(Ba.sub.k-x-y L.sub.x M.sub.y)O.sub.k TiO.sub.2 }+.alpha.CaZrO.sub.3,where L is either or both of magnesium and zinc, M is either or both of calcium and strontium, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of boric oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

9. 发明授权

US4999736A Solid dielectric capacitor and method of manufacture 失效
公开(公告)号：US4999736A
公开(公告)日：1991-03-12
申请号：US482654
申请日：1990-02-21
申请人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
发明人： Hiroshi Kishi , Hirokazu Chazono , Minoru Oshio , Hiroshi Saito , Toshiya Nakamura , Hisamitsu Shizuno
IPC分类号： C04B35/46 , C04B35/468 , C04B35/49 , H01G4/12
CPC分类号： C04B35/4682 , C04B35/49 , H01G4/1245 , Y10T29/435
摘要： A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes. The ceramic body is composed of a major ingredient expressed by the formula,(1-.alpha.)(Ba.sub.k-x-y L.sub.x M.sub.y)O.sub.k TiO.sub.2)+.alpha.CaZrO.sub.s,where L is either or both of magnesium and zinc, M is either or both of calcium and strontium, and .alpha., k, x and y are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of lithium oxide, silicon dioxide and at least one metal oxide selected from among barium oxide, strontium oxide, calcium oxide, magnesium oxide and zinc oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200.degree. C. and then are reheated at a lower temperature in an oxidative atmosphere.

10. 发明申请

US20070104640A1 Perovskite ceramic powder and electronic component using same and manufacturing methods thereof 有权
公开(公告)号：US20070104640A1
公开(公告)日：2007-05-10
申请号：US11606102
申请日：2006-11-30
申请人： Chie Kawamura , Atsushi Tanada , Hirokazu Chazono
发明人： Chie Kawamura , Atsushi Tanada , Hirokazu Chazono
IPC分类号： C01G23/04 , C01G23/00
CPC分类号： C04B35/4682 , B82Y30/00 , C01G1/02 , C01G23/006 , C01P2002/34 , C01P2002/72 , C01P2002/77 , C01P2004/62 , C01P2006/12 , C01P2006/40 , C04B35/47 , C04B2235/441 , C04B2235/444 , C04B2235/449 , C04B2235/5409 , C04B2235/5445 , C04B2235/5454 , C04B2235/5481 , C04B2235/6025 , C04B2235/761 , C04B2235/79 , H01G4/1209 , H01G4/1227 , H01G4/30 , Y10T428/24917 , Y10T428/24926
摘要： A ceramic powder having a perovskite structure is manufactured by synthesizing a ceramic powder by a dry synthesis process and then heat-treating the synthesized ceramic powder in a solution. The dry synthesis method includes a solid phase synthesis method, an oxalate method, a citric acid method and a gas phase synthesis method.

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