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公开(公告)号:US4339544A
公开(公告)日:1982-07-13
申请号:US284216
申请日:1981-07-17
申请人: Yukio Sakabe , Yukio Hamaji , Hiroshi Komatsu
发明人: Yukio Sakabe , Yukio Hamaji , Hiroshi Komatsu
CPC分类号: C04B35/499 , H01G4/1254
摘要: A ceramic dielectric composition of a ternary system Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 -Pb(Zn.sub.1/3 Nb.sub.2/3)O.sub.3 -PbTiO.sub.3, comprising 69.05-69.60% by weight of Pb.sub.3 O.sub.4, 2.41-4.00% by weight of MgO, 0.08-3.15% by weight of ZnO, 24.01-26.66% by weight of Nb.sub.2 O.sub.5 and 0.13-2.59% by weight of TiO.sub.2. The composition can be sintered at a low firing temperature less than 1,150.degree. C., and has a high dielectric constant above 10,000.
摘要翻译: 三元体系Pb(Mg1 / 3Nb2 / 3)O3-Pb(Zn1 / 3Nb2 / 3)O3-PbTiO3的陶瓷电介质组合物,其包含69.05-69.60重量%的Pb 3 O 4,2.41-4.00重量%的MgO,0.08 -3.15重量%的ZnO,24.01-26.66重量%的Nb 2 O 5和0.13-2.59重量%的TiO 2。 该组合物可以在低于1150℃的低烧成温度下烧结,并且具有高于10,000的高介电常数。
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公开(公告)号:US5672220A
公开(公告)日:1997-09-30
申请号:US636685
申请日:1996-04-23
申请人: Nagato Omori , Yukio Hamaji , Yoshiaki Mori , Yukio Sakabe
发明人: Nagato Omori , Yukio Hamaji , Yoshiaki Mori , Yukio Sakabe
CPC分类号: H01G4/30 , H05K1/0306 , H05K3/4611 , H05K3/4629
摘要: A plurality of dielectric ceramic sheets having inner electrodes thereon are laminated and sintered. The ceramic sheets are made of a non-reducing dielectric material, and the inner electrodes are made of a base metal or a base metal alloy. After a binder removing step, the laminate is sintered in a mixed gas which contains either one or both of carbon dioxide with a purity of 99.9% or more and carbon monoxide with a purity of 99.9% or more as its main constituent and further contains hydrogen and oxygen with their densities regulated.
摘要翻译: 其上具有内电极的多个介电陶瓷片被层压并烧结。 陶瓷片由非还原电介质材料制成,内电极由贱金属或贱金属合金制成。 在粘合剂除去步骤之后,将层压体在含有纯度为99.9%以上的二氧化碳中的一种或两种作为主要成分的纯度为99.9%以上的一氧化碳的混合气体中烧结,并且还含有氢 氧气密度调节。
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公开(公告)号:US5328718A
公开(公告)日:1994-07-12
申请号:US969027
申请日:1992-10-30
申请人: Yoshio Abe , Yukio Hamaji , Yukio Sakabe
发明人: Yoshio Abe , Yukio Hamaji , Yukio Sakabe
IPC分类号: C01G23/00 , C04B35/46 , C04B35/468 , H01B3/00 , H01B3/12 , H01L21/314 , H01L21/316 , B05D5/12
CPC分类号: H01L21/31691 , H01L41/1871 , H01L41/317
摘要: A thin film of barium titanate is formed on a substrate by immersing the substrate in an aqueous solution containing barium ions and titanium alkoxide. The aqueous solution may contain not more than 20 vol % of one or more alkanolamines expressed by the general formula:HO(C.sub.n H.sub.2n)mNH.sub.3-mwhere n is not more than 10, and m=1, 2 or 3.
摘要翻译: 通过将基板浸入含有钡离子和钛醇盐的水溶液中,在基板上形成钛酸钡薄膜。 水溶液可以含有不多于20体积%的一种或多种由以下通式表示的链烷醇胺:HO(CnH2n)mNH3-m,其中n不大于10,m = 1,2或3。
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公开(公告)号:US4388416A
公开(公告)日:1983-06-14
申请号:US318863
申请日:1981-11-06
申请人: Yukio Sakabe , Yukio Hamaji
发明人: Yukio Sakabe , Yukio Hamaji
IPC分类号: C04B35/46 , C04B35/475 , H01B3/12 , H01G4/12 , H01G4/258
CPC分类号: H01G4/258 , C04B35/475
摘要: Ceramic dielectric compositions for temperature compensating capacitors, exhibiting a high dielectric constant, a relatively small temperature coefficient of dielectric constant and a very excellent linearity of the temperature coefficient, comprising 1.2-19.0% by weight of SrO, 12.2-17.4% by weight of CaO, 35.8-43.9% by weight of TiO.sub.2, 15.7-37.6% by weight of Bi.sub.2 O.sub.3, 1.9-14.6% by weight of Pb.sub.3 O.sub.4 and 0.9-2.7% by weight of MgO.
摘要翻译: 用于温度补偿电容器的陶瓷电介质组合物,具有高介电常数,相对较小的介电常数温度系数和非常优异的温度系数线性,其包含1.2-19.0重量%的SrO,12.2-17.4重量%的CaO ,35.8-43.9重量%的TiO 2,15.7-37.6重量%的Bi 2 O 3,1.9〜14.6重量%的Pb 3 O 4和0.9〜2.7重量%的MgO。
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公开(公告)号:US5268342A
公开(公告)日:1993-12-07
申请号:US904398
申请日:1992-06-25
申请人: Toshiki Nishiyama , Yukio Hamaji , Yukio Sakabe
发明人: Toshiki Nishiyama , Yukio Hamaji , Yukio Sakabe
IPC分类号: C04B35/468 , H01G4/12 , C04B35/46
CPC分类号: H01G4/1227 , C04B35/4682
摘要: A nonreducing dielectric ceramic composition that includes BaTi0.sub.3 as a main component, the BaTi0.sub.3 containing alkali metal oxides in an amount more than 0.04 weight % as impurities. One or more of the following rare earth metal oxides (Re.sub.2 O.sub.3): Tb.sub.2 O.sub.3, Dy.sub.2 O.sub.3, Ho.sub.2 O.sub.3 and Er.sub.2 O.sub.3 ; and Co.sub.2 O.sub.3 in the following ratios: BaTiO.sub.3 is 92.0-00.4 mol %; Re.sub.2 O.sub.3 is 0.3-4.0 mol %; and Co.sub.2 O.sub.3 is 0.3-4.0 mol %; the composition also includes the following subcomponents: 0.2-4.0 mol % BaO; 0.2-3.0 mol % of MnO; and 0.5-5.0 mol % of MgO. The composition may include 0.5-2.5 weight parts of oxide glass containing BaO-SrO-Li.sub.2 O-SiO.sub.2 incorporated with 100 weight parts for the above composition. The composition may also include 0.5-4.0 mol % CaTiO.sub.3, 0.5-3.5 mol % CaZrO.sub.3 or one or both of NiO and Al.sub.2 O.sub.3 in an amount 0.3-3.0 mol %. Further, 0.5-2.5 weight parts of oxide glass containing BaO-SrO-Li.sub.2 O-SiO.sub.2 may be incorporated with 100 weight parts of the composition. SiO.sub.2 in an amount of 0.2-3.0 mol % or one or both of NiO and Al.sub.2 O.sub.3 in an amount of 0.3-3.0 mol % may be incorporated in the composition. CaO or SrO may be substituted for BaO.
摘要翻译: 包含BaTiO 3作为主要成分的非还原介电陶瓷组合物,含有大于0.04重量%的碱金属氧化物的BaTiO 3作为杂质。 下列稀土金属氧化物(Re2O3):Tb2O3,Dy2O3,Ho2O3和Er2O3中的一种或多种; 和Co2O3的比例为:BaTiO3为92.0-00.4mol%; Re2O3为0.3-4.0mol%; Co2O3为0.3-4.0摩尔%。 该组合物还包括以下亚组分:0.2-4.0mol%BaO; 0.2-3.0摩尔%的MnO; 和0.5-5.0摩尔%的MgO。 组合物可以包含0.5-2.5重量份的含有BaO-SrO-Li 2 O-SiO 2的氧化物玻璃,其含有100重量份的上述组合物。 该组合物还可以包含0.5-4.0mol%CaTiO 3,0.5-3.5mol%CaZrO 3或0.3-3.0mol%的NiO和Al 2 O 3中的一种或两者。 此外,可以加入0.5-2.5重量份的含有BaO-SrO-Li 2 O-SiO 2的氧化物玻璃与100重量份的组合物。 0.2-3.0摩尔%的SiO 2或0.3-3.0摩尔%的NiO和Al 2 O 3中的一种或两者的二氧化硅可以加入到组合物中。 CaO或SrO可以代替BaO。
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公开(公告)号:US5518776A
公开(公告)日:1996-05-21
申请号:US197008
申请日:1994-02-15
申请人: Yoshio Abe , Yukio Hamaji , Yukio Sakabe
发明人: Yoshio Abe , Yukio Hamaji , Yukio Sakabe
IPC分类号: C01G23/00 , C23C18/12 , H01B3/00 , H01L21/314 , H01L21/316 , B05D1/18
CPC分类号: C23C18/1216 , C01G23/006 , H01L21/31691 , C01P2002/34
摘要: A thin film of strontium titanate is formed on a substrate by immersing a substrate in an aqueous solution containing strontium ions and titanium alkoxide. The aqueous solution may contain not more than 20 vol % of one or more alkanolamines expressed by the general formula:HO(C.sub.n H.sub.2n).sub.m NH.sub.3-mwith n=not more than 10, and m=1, 2 or 3.
摘要翻译: 通过将基板浸渍在含有锶离子和钛醇盐的水溶液中,在基板上形成钛酸锶薄膜。 所述水溶液可以含有不超过20体积%的由通式HO(C n H 2n)m NH 3-m表示的一种或多种烷醇胺,n = 10以下,m = 1,2或3。
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公开(公告)号:US5248640A
公开(公告)日:1993-09-28
申请号:US951206
申请日:1992-09-25
申请人: Harunobu Sano , Yukio Hamaji , Yukio Sakabe
发明人: Harunobu Sano , Yukio Hamaji , Yukio Sakabe
IPC分类号: C04B35/465 , H01B3/12
CPC分类号: C04B35/465 , H01B3/12
摘要: A non-reducible dielectric ceramic composition comprises of a basic composition expressed by the general formula:{(Ba.sub.1-x-y Sr.sub.x Ca.sub.y)O}.sub.m (Ti.sub.1-o-p Zr.sub.o Nb.sub.p)O.sub.2+p/2wherein 0.05.ltoreq.x 0.30, 0.005.ltoreq.y.ltoreq.0.12, 0.ltoreq.o.ltoreq.0.20, 0.0005.ltoreq.p.ltoreq.0.012, and 1.002.ltoreq.m.ltoreq.1.03, or{(Ba.sub.1-x-y-z Sr.sub.x Ca.sub.y Mg.sub.z)O}.sub.m (Ti.sub.1-o-p Zr.sub.o Nb.sub.p)O.sub.2+p/2wherein 0.05.ltoreq.x.ltoreq.0.35, 0.005.ltoreq.y 0.12, 0.0005 .ltoreq.z.ltoreq.0.05, 0
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公开(公告)号:US4537865A
公开(公告)日:1985-08-27
申请号:US629846
申请日:1984-07-11
申请人: Shinsei Okabe , Hiroshi Komatsu , Yukio Hamaji , Shozo Kojima , Yoshiharu Kato
发明人: Shinsei Okabe , Hiroshi Komatsu , Yukio Hamaji , Shozo Kojima , Yoshiharu Kato
IPC分类号: C01G23/00 , C01G25/00 , C04B35/468 , C04B35/46
CPC分类号: B82Y30/00 , C01G23/003 , C01G25/006 , C04B35/4684 , C01P2004/02 , C01P2004/50 , C01P2004/62 , C01P2004/64
摘要: A process for preparing a particulate ceramic material comprising the steps of:(a) adding carbon dioxide or an aqueous solution of a soluble carbonate to first aqueous solution of a nitrate or chloride of Ba, Sr, Ca or Mg in a first vessel to adjust the pH of said first aqueous solution to between 7 and 10 thereby forming a carbonate precipitate;(b) adding an aqueous solution of a soluble hydroxide to a second aqueous solution of a nitrate or chloride of Ti, Zr, Sn or Pb in a second vessel to adjust the pH of said second aqueous solution to between 7 and 10 thereby forming a hydroxide precipitate;(c) combining slurries containing the precipitates formed in said first and second vessels;(d) mixing the combined slurries;(e) passing the slurries through a filter;(f) washing the filter cake with water;(g) drying the filter cake to form a powder;(h) calcining the dried powder; and(i) grinding the calcined powder.
摘要翻译: 一种制备颗粒状陶瓷材料的方法,包括以下步骤:(a)在第一容器中将二氧化碳或可溶性碳酸盐水溶液加入到Ba,Sr,Ca或Mg的硝酸盐或氯化物的第一水溶液中以调节 所述第一水溶液的pH为7至10,由此形成碳酸盐沉淀物; (b)在第二容器中将可溶性氢氧化物的水溶液加入到Ti,Zr,Sn或Pb的硝酸盐或氯化物的第二水溶液中以将所述第二水溶液的pH调节至7至10,从而形成 氢氧化物沉淀; (c)组合含有形成在所述第一和第二容器中的沉淀物的浆料; (d)混合组合的浆料; (e)使浆料通过过滤器; (f)用水清洗滤饼; (g)干燥滤饼以形成粉末; (h)煅烧干粉; 和(i)研磨煅烧粉末。
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公开(公告)号:US06769160B2
公开(公告)日:2004-08-03
申请号:US10087767
申请日:2002-03-05
申请人: Shoichi Higuchi , Tatsuo Kunishi , Yukio Hamaji
发明人: Shoichi Higuchi , Tatsuo Kunishi , Yukio Hamaji
IPC分类号: H01G700
CPC分类号: H01G4/232 , H01C1/148 , H01C17/283 , Y10T29/417 , Y10T29/435 , Y10T29/49098 , Y10T29/49144 , Y10T428/12708
摘要: A process for manufacturing an electronic part having a ceramic body and an outer electrode form on the surface of the body, the outer electrode including a plurality of layers and having a Sn plating layer as the outermost layer. The Sn plating layer having an average crystal grain size of about 1 &mgr;m or less is formed on a Ni or Ni alloy by electroplating in a plating bath having a pH of about 3 to 10.
摘要翻译: 一种制造在本体表面上具有陶瓷体和外部电极的电子部件的制造方法,其特征在于,所述外部电极具有多层,并具有Sn镀层作为最外层。 通过在pH为约3〜10的电镀浴中电镀,在Ni或Ni合金上形成平均结晶粒径为1μm以下的Sn镀层。
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公开(公告)号:US06373683B1
公开(公告)日:2002-04-16
申请号:US09680610
申请日:2000-10-06
申请人: Shoichi Higuchi , Tatsuo Kunishi , Yukio Hamaji
发明人: Shoichi Higuchi , Tatsuo Kunishi , Yukio Hamaji
IPC分类号: H01G4008
CPC分类号: H01G4/232 , H01C1/148 , H01C17/283 , Y10T29/417 , Y10T29/435 , Y10T29/49098 , Y10T29/49144 , Y10T428/12708
摘要: An electronic part includes a body and an outer electrode formed on the surface of the body, the outer electrode comprising a plurality of layers and having a Sn plating layer as the outermost layer. The Sn plating layer has an average crystal grain size of about 1 &mgr;m or less.
摘要翻译: 电子部件包括形成在主体表面上的主体和外部电极,外部电极包括多个层,并具有Sn镀层作为最外层。 Sn镀层的平均结晶粒径为1μm以下。
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