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1. 发明授权

US4818736A High dielectric constant type ceramic composition 失效
标题翻译：高介电常数陶瓷组合物
公开(公告)号：US4818736A
公开(公告)日：1989-04-04
申请号：US157149
申请日：1988-02-11
申请人： Yohachi Yamashita , Osamu Furukawa , Mitsuo Harata , Takashi Takahashi
发明人： Yohachi Yamashita , Osamu Furukawa , Mitsuo Harata , Takashi Takahashi
IPC分类号： C04B35/499 , H01G4/12 , C04B35/46
CPC分类号： C04B35/499 , H01G4/1218 , H01G4/1254
摘要： When a portion of the Pb of a Pb(Zn.sub.1/3 Nb.sub.2/3)O.sub.3 -based ceramic composition within the region bounded by lines connecting a, b, c and d points in the ternary composition diagram of the accompanying FIG. 1 is substituted by a small amount of Ba and/or Sr, a high dielectric constant type ceramic composition which has a small temperature coefficient of dielectric constant and which is effective as a material for multilayer ceramic capacitors is obtained.
摘要翻译：当Pb（Zn1 / 3Nb2 / 3）O3系陶瓷组合物的Pb的一部分在由连接a，b，c和d的线连接的区域内，在附图3的三元组成图中指出。 1被少量的Ba和/或Sr代替，获得了介电常数小的并且作为多层陶瓷电容器的材料有效的高介电常数型陶瓷组合物。

2. 发明授权

US5182695A Ceramic composition and electronic part using the same 失效
标题翻译：陶瓷组合物和使用该组合物的电子部件
公开(公告)号：US5182695A
公开(公告)日：1993-01-26
申请号：US743361
申请日：1991-08-22
申请人： Kiyoji Handa , Satoshi Mukaeda , Hideyuki Kanai , Yohachi Yamashita , Osamu Furukawa , Mitsuo Harata
发明人： Kiyoji Handa , Satoshi Mukaeda , Hideyuki Kanai , Yohachi Yamashita , Osamu Furukawa , Mitsuo Harata
IPC分类号： C04B35/00 , C04B35/497 , H01B3/12 , H01G4/12
CPC分类号： C04B35/497 , H01B3/12 , H01G4/1254
摘要： A ceramic composition which forms, when sintered, a dielectric having a crystal structure represented by the general formula:[Pb.sub.1-x A.sub.x ].sub.[A] (B.sub.1,B.sub.2).sub.[B] O.sub.3where A is at least one element selected from the group consisting of Ca, Sr, Ba, Ag, La and Nd, B.sub.1 is at least one element selected from the group consisting of Mg, Zn, Ni, Co, Fe, Mn and In, B.sub.2 is at least one element selected from the group consisting of Nb, W, Ta and Sb, x is 0 to 0.5, and the molar ratio of [A]/[B] is 0.995 or more, but 0.99 or less.
摘要翻译： PCT No.PCT / JP90 / 01669 Sec。 371日期：1991年7月23日 102（e）日期1991年7月23日PCT 1990年12月21日PCT PCT。出版物WO91 / 09814 日期：1991年7月11日。一种陶瓷组合物，其在烧结时形成具有由以下通式表示的晶体结构的电介质：[Pb1-xAx] [A]（B1，B2）[B] O3，其中A至少选自由Ca，Sr，Ba，Ag，La和Nd组成的组中的一种元素，B1是选自Mg，Zn，Ni，Co，Fe，Mn和In中的至少一种元素，B2至少为选自Nb，W，Ta和Sb中的一种元素，x为0至0.5，[A] / [B]的摩尔比为0.995以上，0.99以下。

3. 发明授权

US5059566A High-dielectric constant ceramic composite and ceramic capacitor elements 失效
标题翻译：高介电常数陶瓷复合材料和陶瓷电容元件
公开(公告)号：US5059566A
公开(公告)日：1991-10-22
申请号：US457502
申请日：1989-12-27
申请人： Hideyuki Kanai , Yohachi Yamashita , Osamu Furukawa , Mitsuo Harata
发明人： Hideyuki Kanai , Yohachi Yamashita , Osamu Furukawa , Mitsuo Harata
IPC分类号： C03C3/064 , C03C3/091 , C04B35/195 , C04B35/499 , H01B3/12 , H01G4/12 , H01L41/187
CPC分类号： H01G4/1227 , C03C3/064 , C03C3/091 , C04B35/195 , C04B35/499 , H01B3/12 , H01G4/1254 , H01G4/129 , H01L41/187
摘要： A high-dielectric constant ceramic composite is provided in which an appropriate amount of glass component is added to a composite of the BaTiO.sub.3 -PbMO.sub.3 group having a low temperature coefficient in the dielectric constant thereof. The added glass component serves to maintain the satisfactory properties of the ceramic composite even after various types of reliability tests.

4. 发明授权

US4224174A Piezoelectric oxide materials 失效
标题翻译：压电氧化物材料
公开(公告)号：US4224174A
公开(公告)日：1980-09-23
申请号：US974545
申请日：1978-12-29
申请人： Hideo Okuma , Takashi Takahashi , Yohachi Yamashita , Osamu Furukawa
发明人： Hideo Okuma , Takashi Takahashi , Yohachi Yamashita , Osamu Furukawa
IPC分类号： C04B35/46 , C04B35/472 , H01B3/12 , H01L41/187
CPC分类号： H01L41/187 , C04B35/472
摘要： A piezoelectric oxide material having a general formula(1-x)PbTiO.sub.3 -xPb(CO.sub.1/2 W.sub.1/2)O.sub.3where, "x" ranges between 0.01 and 0.20, and 0.5 to 20 atomic % of Pb is replaced by at least one element selected from the group of Ba, Sr and Ca.The piezoelectric oxide material of this composition has a high Curie point, is suitable for use in high frequency regions and can be readily polarized.
摘要翻译：具有通式（1-x）PbTiO3-xPb（CO1 / 2W1 / 2）O3的压电氧化物材料，其中“x”在0.01和0.20之间，而0.5至20原子％的Pb被至少一个元素选自Ba，Sr和Ca组。该组合物的压电氧化物材料具有高的居里点，适用于高频区域，并且可以容易地极化。

5. 发明授权

US5164882A Ceramic capacitor 失效
标题翻译：陶瓷电容器
公开(公告)号：US5164882A
公开(公告)日：1992-11-17
申请号：US808674
申请日：1991-12-17
申请人： Hideyuki Kanai , Yohachi Yamashita , Osamu Furukawa , Kumi Okuwada
发明人： Hideyuki Kanai , Yohachi Yamashita , Osamu Furukawa , Kumi Okuwada
IPC分类号： C04B35/49 , C04B35/491 , H01B3/12 , H01G4/12
CPC分类号： H01G4/1245 , C04B35/491
摘要： A ceramic capacitor includes at least two opposing electrodes, and a dielectric ceramic composition arranged between the electrodes, wherein the ceramic composition is represented by a formula (Pb.sub.1-x Ae.sub.x) (Zr.sub.1-y Ti.sub.y)O.sub.3 (wherein x represents 0.15 to 0.90, y represents 0 to 0.80, and Ae represents at least one type of an element selected from the group consisting of Ca and Sr), and has a composition in which assuming that the total number of moles of elements constituting a site A consisting of Pb and Ae is (A) and that the total number of moles of elements constituting a site B consisting of Zr and Ti is (B), (A)/(B) is 1.00 or less. The site A of the dielectric ceramic composition may be partially substituted with Ba. The dielectric ceramic composition may be obtained by adding Nb, Cu, Bi, Mn, Co, Ag, Si, Ta, Mg, Zn, W and/or Ni to a composition which is represented by a formula (Pb.sub.1-x Ae.sub.x) (Zr.sub.1-y Ti.sub.y)O.sub.3 (wherein x represents 0.15 to 0.90, y represents 0 to 0.80, and Ae represents at least one type of an element selected from the group consisting of Ca, Sr, and Ba), and in which assuming that the total number of moles of elements constituting a site A consisting of Pb and Ae is (A) and that the total number of moles of elements constituting a site B consisting of Zr and Ti is (B), (A)/(B) is 1.00 or less. The dielectric ceramic composition is preferably formed by using a powder synthesized by a hydrothermal synthesis as a material, and its grain size is preferably 3 .mu.m or less.
摘要翻译：陶瓷电容器包括至少两个相对的电极和布置在电极之间的介电陶瓷组合物，其中陶瓷组合物由式（Pb1-xAex）（Zr1-yTiO）O3表示（其中x表示0.15至0.90，y表示 0〜0.80，Ae表示选自Ca和Sr中的至少一种元素），并且具有假定构成由Pb和Ae构成的位点A的元素的总摩尔数为（A），构成由Zr和Ti构成的部位B的元素的总摩尔数为（B），（A）/（B）为1.00以下。电介质陶瓷组合物的位置A可以部分地被Ba取代。介电陶瓷组合物可以通过将Nb，Cu，Bi，Mn，Co，Ag，Si，Ta，Mg，Zn，W和/或Ni添加到由式（Pb1-xAex）（Zr1 -yTiy）O 3（其中x表示0.15〜0.90，y表示0〜0.80，Ae表示选自Ca，Sr和Ba中的至少一种元素），其中假设总数构成由Pb和Ae构成的部位A的元素的摩尔数为（A），构成由Zr和Ti构成的部位B的元素的总摩尔数为（B），（A）/（B）为1.00或减。电介质陶瓷组合物优选通过使用通过水热合成合成的粉末作为材料形成，其粒径优选为3μm以下。

6. 发明授权

US4767732A High dielectric constant ceramic material and method of manufacturing the same 失效
标题翻译：高介电常数陶瓷材料及其制造方法
公开(公告)号：US4767732A
公开(公告)日：1988-08-30
申请号：US90605
申请日：1987-08-28
申请人： Osamu Furukawa , Seiichi Yoshida , Motomasa Imai , Mitsuo Harata
发明人： Osamu Furukawa , Seiichi Yoshida , Motomasa Imai , Mitsuo Harata
IPC分类号： C04B35/46 , C04B35/45 , C04B35/468 , C04B35/472 , H01G4/12
CPC分类号： C04B35/4684 , C04B35/472 , H01G4/1227 , H01G4/1254
摘要： To obtain a ceramic material having a high dielectric constant (K=2300 to 7000), a high insulation resistance (CR=4000 to 18000 ohmF), a low temperature dependence (.+-.10%) to (.+-.22, -33%) upon dielectric constant over a wide temperature range (-55 and +125.degree. C.) and a relatively low sintering temperature (1000.degree. C. to 1250.degree. C.), BaTiO.sub.3 powder at least 50 wt % of which is 0.7 to 3 .mu.m in particle size) is mixed with another compound with perovskite structure mainly composed of oxides of Pb, Ba, Sr, Zn, Nb, Mg and Ti before sintering. Further, part of Ti of BaTiO.sub.3 is substitutable with Zr or Sn, and part of Ba of BaTiO.sub.3 is substitutable with Sr, Ca or Ce.
摘要翻译：为了获得具有高介电常数（K = 2300〜7000）的陶瓷材料，高绝缘电阻（CR = 4000〜18000ohmF），低温度依赖性（+/- 10％）〜（+/- 22， 33％）在较宽的温度范围（-55和+ 125℃）和相对低的烧结温度（1000℃至1250℃）下的介电常数，至少50重量％的BaTiO 3粉末为0.7 至3μm的粒径）与烧结前主要由Pb，Ba，Sr，Zn，Nb，Mg，Ti的氧化物构成的钙钛矿结构的其他化合物混合。此外，BaTiO3的Ti的一部分可以用Zr或Sn代替，BaTiO3的Ba的一部分可以用Sr，Ca或Ce代替。

7. 发明授权

US4772985A Thick film capacitor 失效
标题翻译：厚膜电容器
公开(公告)号：US4772985A
公开(公告)日：1988-09-20
申请号：US98240
申请日：1987-09-18
申请人： Takaaki Yasumoto , Osamu Furukawa , Nobuo Iwase , Mitsuo Harata , Masao Segawa
发明人： Takaaki Yasumoto , Osamu Furukawa , Nobuo Iwase , Mitsuo Harata , Masao Segawa
IPC分类号： C04B35/497 , C04B35/499 , H01G4/12 , H01G4/30 , C04B35/46 , H01G4/10 , H01G7/00
CPC分类号： C04B35/499 , C04B35/497 , H01G4/129 , H01G4/30 , Y10T29/435
摘要： Disclosed is a thick film capacitor comprising (a) a sintered layer of a ferroelectric material mainly consisting of one or more ferroelectric inorganic compounds having a perovskite structure and an inorganic binder having a eutectic composition which experiences a liquid phase at a temperature lower than the sintering temperature of the ferroelectric inorganic compounds, and (b) at least two electrodes formed on both surfaces of the sintered layer of the ferroelectric material. In the thick film capacitor of this invention, the perovskite structure of the ferroelectric inorganic compounds is not destroyed upon sintering. Therefore, a high degree of sintering, a good dielectric characteristic and high moisture and migration resistances can be obtained.
摘要翻译：公开了一种厚膜电容器，其包括（a）主要由具有钙钛矿结构的一种或多种铁电无机化合物和具有在低于烧结温度的温度下经历液相的共晶组成的无机粘合剂的铁电体材料的烧结层铁电体无机化合物的温度，（b）形成在铁电体的烧结层的两面的至少两个电极。在本发明的厚膜电容器中，铁电体无机化合物的钙钛矿结构在烧结时不破坏。因此，可以获得高度的烧结，良好的介电特性和高的湿度和迁移电阻。

8. 发明授权

US4882652A High dielectric constant type ceramic composition 失效
标题翻译：高介电常数陶瓷组合物
公开(公告)号：US4882652A
公开(公告)日：1989-11-21
申请号：US115908
申请日：1987-11-02
申请人： Osamu Furukawa , Mitsuo Harata , Takaaki Yasumoto , Motomasa Imai
发明人： Osamu Furukawa , Mitsuo Harata , Takaaki Yasumoto , Motomasa Imai
IPC分类号： H01G4/12 , C04B35/00 , C04B35/46 , C04B35/499 , H01B3/12
CPC分类号： C04B35/499
摘要： When a portion of the Pb of a Pb(Zn.sub.1/3 Nb.sub.2/3)O.sub.3 -based ceramic composition within the region bounded by lines connecting a, b, c, d, e and f points in the ternary composition diagram of the accompanying FIG. 1 is substituted by a small amount of Ca, a high dielectric constant type ceramic composition is obtained which has a small temperature coefficient of dielectric constant and which is effective as a material for multilayer ceramic capacitors.
摘要翻译：当Pb（Zn1 / 3Nb2 / 3）O3系陶瓷组合物的Pb的一部分在连接a，b，c，d，e和f的线所界定的区域内时，在图3的三元组成图中指出。 1被少量的Ca代替，获得了介电常数较小温度系数高的介电常数型陶瓷组合物，作为多层陶瓷电容器的材料是有效的。

9. 发明授权

US4516105A Metal oxide varistor with non-diffusable electrodes 失效
标题翻译：具有非扩散电极的金属氧化物变阻器
公开(公告)号：US4516105A
公开(公告)日：1985-05-07
申请号：US395278
申请日：1982-07-06
申请人： Motomasa Imai , Takashi Takahashi , Osamu Furukawa , Hideyuki Kanai
发明人： Motomasa Imai , Takashi Takahashi , Osamu Furukawa , Hideyuki Kanai
IPC分类号： H01C7/10 , C04B35/453 , H01C7/112 , C04B35/00
CPC分类号： H01C7/112
摘要： Disclosed is a metal oxide varistor which comprises; a sintered body containing (a) ZnO as a principal component, and (b), as auxiliary components, Bi, Co and Mn in amounts of 0.05.about.2 mole %, 0.05.about.2 mole % and 0.05.about.2 mole %, when calculated in terms of Bi.sub.2 O.sub.3, Co.sub.2 O.sub.3 and MnO.sub.2, respectively, and at least one selected from Al, In and Ga in amounts of 1.times.10.sup.-4 .about.3.times.10.sup.-2 mole %, when calculated in terms of Al.sub.2 O.sub.3, In.sub.2 O.sub.3 and Ga.sub.2 O.sub.3, respectively; said sintered material having been reheated at a temperature of 650.degree..about.900.degree. C. after sintering; and a non-diffusible electrode provided on said sintered body. The metal oxide varistor has excellent pulse response and volt-ampere non-linearity even with respect to a pulse having a short rise time of less than a microsecond.
摘要翻译：公开了一种金属氧化物变阻器，其包括：含有（a）ZnO作为主要成分的烧结体，和（b）作为辅助成分的Bi，Co和Mn，其量为0.05DIFFERENCE 2摩尔％，0.05差异2摩尔％和0.05差异2摩尔％，当计算分别以Bi 2 O 3，Co 2 O 3和MnO 2为单位，以Al 2 O 3，In 2 O 3和Ga 2 O 3计算，选自Al，In和Ga中的至少1种为1×10 -4 DIFFERENCE 3×10 -2摩尔％所述烧结材料在烧结后在650℃的温度下再加热; 以及设置在所述烧结体上的非扩散电极。金属氧化物变阻器即使对于具有小于一微秒的短上升时间的脉冲也具有优异的脉冲响应和伏安非线性。

10. 发明授权

US4540971A Metal oxide varistor made by a co-precipation process and freeze-dried 失效
标题翻译：金属氧化物变阻器通过共沉淀法制成并冷冻干燥
公开(公告)号：US4540971A
公开(公告)日：1985-09-10
申请号：US506768
申请日：1983-06-22
申请人： Hideyuki Kanai , Takashi Takahashi , Motomasa Imai , Osamu Furukawa , Hiroshi Endo , Osamu Hirao , Masaru Hayashi
发明人： Hideyuki Kanai , Takashi Takahashi , Motomasa Imai , Osamu Furukawa , Hiroshi Endo , Osamu Hirao , Masaru Hayashi
IPC分类号： H01C7/10 , H01C7/112 , H01B1/08
CPC分类号： H01C7/112 , Y10T29/49082
摘要： A metal oxide varistor is disclosed which a component of grain bodies comprised of zinc oxide and a component of grain boundary layers comprised of another metallic oxide, containing metal other than zinc wherein at least a portion of these starting materials comprised a fine particle powder prepared by a co-precipitatin method.The metal oxide varistor of the present invention is excellent in varistor characteristics such as non-linearity to voltage, life performances and capability of energy dissipation, is small in a scatter of the above characteristics between manufacture lots or within each lot at the time of manufacture, and has a good quality stability. Unexpected results are obtained when the co-precipitated fine particles are subjected to a refrigeration-dehydration type process.
摘要翻译：公开了一种金属氧化物变阻器，其中由氧化锌组成的晶粒组成部分和由除了锌之外的金属的另一种金属氧化物组成的晶界层的组分，其中这些起始材料的至少一部分包含由共沉淀法。本发明的金属氧化物变阻器具有优异的非线性电压，寿命性能和能量耗散等非线性电阻特性，在制造批次之间或在制造时间内的各批次内的上述特性的散射小，质量稳定。当共沉淀的微粒进行冷冻 - 脱水型处理时，获得了意想不到的结果。

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