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1. 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。

2. 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。

3. 发明授权

US06514427B2 Piezoelectric ceramic composition and piezoelectric element containing the same 失效
标题翻译：压电陶瓷组合物和含有它的压电元件
公开(公告)号：US06514427B2
公开(公告)日：2003-02-04
申请号：US10008890
申请日：2001-11-13
申请人： Masamitsu Nishida , Keiichi Takahashi , Kojiro Okuyama , Junichi Kato
发明人： Masamitsu Nishida , Keiichi Takahashi , Kojiro Okuyama , Junichi Kato
IPC分类号： C04B3500
CPC分类号： C04B35/01 , C04B35/495 , H01L41/1873
摘要： The present invention provides a piezoelectric ceramic composition that can be manufactured easily by an ordinary sintering method, is free from lead, and has a large frequency constant, a small grain size, and a high mechanical Q. This composition is expressed by a formula of (1-v-w)[(Li1-x-yNaxKy)zRO3].vLMnO3.wBi1/2Na1/2TiO3. The present invention also provides a piezoelectric ceramic composition, including at least one selected from Mn, Cr, and Co that is added to a composition expressed by a formula of (Li1-x-yNaxKy)zRO3 so as to have a ratio thereof to the whole of 0.01 to 1 wt % in terms of MnO2, Cr2O3, and CoO, respectively. In the above-mentioned formulae, 0≦v≦0.05, 0≦0.2, v+w>0, 0.2≦x≦0.97, 0≦y≦0.8, x+y≧0.8, 0.98≦z≦1, L indicates at least one element selected from the rare earth elements, and R denotes at least one element selected from Nb, Ta, and Sb.
摘要翻译：本发明提供一种压电陶瓷组合物，其可以通过常规烧结方法容易地制造，不含铅，具有大的频率常数，小的晶粒尺寸和高的机械Q.该组成由式（1-vw）[（Li1-x-yNaxKy）zRO3] .vLMnO3.wBi1 / 2Na1 / 2TiO3。本发明还提供一种压电陶瓷组合物，其包含选自Mn，Cr和Co中的至少一种，其被添加到由式（Li1-x-yNaxKy）zRO3表示的组成中，以使其与分别为MnO 2，Cr 2 O 3和CoO的0.01〜1重量％。在上述公式中，0 <= v <= 0.05,0 <= 0.2，v + w> 0,0.2 <= x <= 0.97,0 <= y <= 0.8，x + y> = 0.8,0.98 <= z <= 1，L表示选自稀土元素中的至少一种元素，R表示选自Nb，Ta和Sb中的至少一种元素。

4. 发明授权

US06458287B1 Piezoelectric ceramic composition and piezoelectric element containing the same 失效
标题翻译：压电陶瓷组合物和含有它的压电元件
公开(公告)号：US06458287B1
公开(公告)日：2002-10-01
申请号：US09995512
申请日：2001-11-27
申请人： Masamitsu Nishida , Keiichi Takahashi , Kojiro Okuyama , Hiroshi Sogou , Junichi Kato
发明人： Masamitsu Nishida , Keiichi Takahashi , Kojiro Okuyama , Hiroshi Sogou , Junichi Kato
IPC分类号： C04B35495
CPC分类号： C04B35/495 , H01L41/187
摘要： The present invention provides a piezoelectric ceramic composition that is free from lead and has a small grain size, a high coupling coefficient, a high mechanical Q, and a large frequency constant. This composition is characterized by being expressed by a formula of (LixNa1−x−yKy)z−2wMa2wNb1−wMbwO3, wherein 0.03≦x≦0.2, 0≦y≦0.2, 0.98≦z≦1, 0
摘要翻译：本发明提供一种不含铅并具有小晶粒度，高耦合系数，高机械Q和大频率常数的压电陶瓷组合物。该组合物的特征在于用式（LixNa1-x-yKy）z-2wMa2wNb1-wMbwO3表示，其中0.03 <= x <= 0.2,0 <= y <=0.2,0.98≤z≤1,0

5. 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。

6. 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

7. 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。

8. 发明授权

US5153154A Dielectric ceramic composition 失效
标题翻译：介电陶瓷组合物
公开(公告)号：US5153154A
公开(公告)日：1992-10-06
申请号：US724884
申请日：1991-07-02
申请人： Junichi Kato , Hiroshi Kagata
发明人： Junichi Kato , Hiroshi Kagata
IPC分类号： C01G33/00 , C04B35/497
CPC分类号： C04B35/497 , C01G33/006 , C01P2006/40 , C01P2006/80
摘要： A dielectric ceramic composition possessing a high relative dielectric constant, a high unloaded Q value, and an excellent temperature characteristic is expressed as xPbO-.sub.y (Mg.sub.1/3 Nb.sub.2/3)O.sub.2 -zCaO, where x+y+z=1, and x, y, z are in the following ranges, 0.05.ltoreq.x.ltoreq.0.45, 0.4.ltoreq.y.ltoreq.0.55, 0.15.ltoreq.z.ltoreq.0.4, or expressed as xPbO-y(Ni.sub.1/3 Nb.sub.2/3) O.sub.2 -zCaO, where x+y+z=1, and x,y, z are in a quadrangular region with vertexes at A (x=0.25 y=0.7 z=0.05), B (x=0.2 y=0.7 z=0.1), C (x=0.2 y=0.45 z=0.35), and D (x=0.35 y=0.45 z=0.2), which are composition points of a ternary system with vertexes at PbO, (Ni.sub.1/3 Nb.sub.2/3)O.sub.2, and CaO.
摘要翻译：具有高相对介电常数，高无载Q值和优异温度特性的介电陶瓷组合物表示为xPbO-y（Mg1 / 3Nb2 / 3）O2-zCaO，其中x + y + z = 1，x ，y，z在以下范围内，0.05≤x≤0.45,0.4≤y≤0.55,0.15≤z≤0.4，或表示为xPbO-y（Ni1 / 3Nb2 / 3）O2-zCaO，其中x + y + z = 1，x，y，z处于A（x = 0.25y = 0.7z = 0.05）的顶点的四边形区域，B（x = 0.2 y = 0.7 z = 0.1），C（x = 0.2 y = 0.45 z = 0.35）和D（x = 0.35 y = 0.45 z = 0.2），它们是具有PbO顶点的三元体系的组成点（Ni1 / 3Nb2 / 3）O2和CaO。

9. 发明授权

US4885661A Multi-layer ceramic capacitor 失效
标题翻译：多层陶瓷电容
公开(公告)号：US4885661A
公开(公告)日：1989-12-05
申请号：US262501
申请日：1988-10-18
申请人： Yoichiro Yokotani , Hiroshi Kagata , Hiroshi Niwa , Junichi Kato , Toshihiro Mihara
发明人： Yoichiro Yokotani , Hiroshi Kagata , Hiroshi Niwa , Junichi Kato , Toshihiro Mihara
IPC分类号： H01G4/12 , H01B3/12 , H01G4/30
CPC分类号： H01G4/1209
摘要： A mutli-layer ceramic capacitor principally made up of (a) internal electrode layers containing at least copper and (b) ceramic dielectric layers extending between the internal electrode layers. The materials which form the ceramic include copper oxide and an oxide component A and B, which component A is selected from group I of lead, calcium, strontium, and barium, and component B is selected from group II of magnesia, nickel, titanium, zirconium, zinc, niobium, tantalum, and tungsten. The component A includes at least lead and component B includes at least two of the substances in group II, and wherein a ratio between values a and b are chosen so that 0.985
摘要翻译：主要由（a）至少含有铜的内部电极层和（b）在内部电极层之间延伸的陶瓷电介质层构成的多层陶瓷电容器。形成陶瓷的材料包括氧化铜和氧化物组分A和B，组分A选自铅，钙，锶和钡的组I，组分B选自氧化镁，镍，钛，锆，锌，铌，钽和钨。组分A至少包含铅，组分B包括组II中的至少两种物质，并且其中选择值a和b之间的比率使得0.985

10. 发明授权

US06227051B1 Acceleration sensor 失效
标题翻译：加速度传感器
公开(公告)号：US06227051B1
公开(公告)日：2001-05-08
申请号：US09532027
申请日：2000-03-21
申请人： Tetsuro Otsuchi , Katsu Takeda , Katsunori Moritoki , Osamu Kawasaki , Junichi Kato , Kouji Kawakita , Hiroshi Kagata
发明人： Tetsuro Otsuchi , Katsu Takeda , Katsunori Moritoki , Osamu Kawasaki , Junichi Kato , Kouji Kawakita , Hiroshi Kagata
IPC分类号： G01P1509
CPC分类号： G01P15/0922 , G01P21/00
摘要： An acceleration sensor has a piezoelectric element which includes a piezoelectric member layer in which a plurality of piezoelectric members are stacked and electrodes which are disposed in major opposed surfaces of the piezoelectric member layer; and a support member for supporting the piezoelectric element, wherein some piezoelectric members of the piezoelectric member layer are polarized. The electrodes are disposed in both surfaces of the polarized piezoelectric members. Capacitors which are formed by the polarized piezoelectric members and the electrodes in both surfaces of the polarized piezoelectric members are connected parallel to each other.
摘要翻译：一种加速度传感器具有压电元件，该压电元件包括堆叠有多个压电元件的压电元件层和设置在该压电元件层主要相对表面的电极; 以及用于支撑压电元件的支撑构件，其中压电构件层的一些压电构件被极化。电极设置在极化压电部件的两个表面。由极化压电部件形成的电容器和极化压电部件的两面的电极彼此平行地连接。

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