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    Process for preparing a particulate ceramic material
    3.
    发明授权
    Process for preparing a particulate ceramic material 失效
    微粒陶瓷材料的制备方法

    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。

    Method for production of nonreducible dielectric ceramic composition
    5.
    发明授权
    Method for production of nonreducible dielectric ceramic composition 失效
    生产不可蚀刻电介质陶瓷组合物的方法

    公开(公告)号：US5232880A

    公开(公告)日：1993-08-03

    申请号：US818294

    申请日：1992-01-09

    申请人： Nobuyuki Wada ,  Yoshiaki Kohno ,  Shozo Kojima ,  Syunsuke Nakaya

    发明人： Nobuyuki Wada ,  Yoshiaki Kohno ,  Shozo Kojima ,  Syunsuke Nakaya

    IPC分类号： C04B35/465 ,  H01G4/12

    CPC分类号： C04B35/465 ,  H01G4/1227 ,  H01G4/1236

    摘要： A nonreducible dielectric ceramic composition of a system, (A.sub.1-x R.sub.x).sub.y BO.sub.3, is prepared by preparing a slurry containing at least one compound selected from the group consisting of carbonates and hydroxides of Ba, Sr, Ca and Mg, at least one compound selected from the group consisting of carbonates and hydroxides of rare earth elements R, and at least one compound selected from the group consisting of oxides, carbonates and hydroxides of Ti, Zr and Sn; filtering the resulting slurry; washing the filter cake with water and calcining the resulting washed cake.

    摘要翻译： 通过制备含有至少一种选自Ba，Sr，Ca和Mg的碳酸盐和氢氧化物的化合物的浆料，选自至少一种选自下列化合物的化合物（A1-xRx）yBO3的系统的不可还原介电陶瓷组合物 来自由碳酸盐和稀土元素R的氢氧化物组成的组，以及选自Ti，Zr和Sn的氧化物，碳酸盐和氢氧化物中的至少一种化合物; 过滤所得浆料; 用水洗涤滤饼并煅烧所得洗涤的蛋糕。

    Process for preparing powdered ceramic raw materials of complex oxide
    6.
    发明授权
    Process for preparing powdered ceramic raw materials of complex oxide 失效
    复合氧化物粉末陶瓷原料的制备方法

    公开(公告)号：US4820668A

    公开(公告)日：1989-04-11

    申请号：US852612

    申请日：1986-04-16

    申请人： Yoshiharu Kato ,  Shinsei Okabe ,  Shozo Kojima ,  Yasunobu Yoneda

    发明人： Yoshiharu Kato ,  Shinsei Okabe ,  Shozo Kojima ,  Yasunobu Yoneda

    IPC分类号： C01B13/36 ,  C01G29/00 ,  C04B35/465 ,  C04B35/468 ,  C04B35/46

    CPC分类号： C01B13/363 ,  C04B35/465 ,  C04B35/4684

    摘要： A process for preparing a powdered ceramic raw material, comprising the steps of; (a) adding gaseous carbon dioxide or a precipitant composed of a water-soluble carbonate to the first aqueous solution containing at least one nitrate or chloride of elements selected from the group consisting of Ba, Sr, Ca and Mg until the pH of the solution is reached to a predetermined value within the range of 7 to 10 to precipitate at least one carbonate of said elements, (b) adding ammonia gas or a precipitant composed of an aqueous solution of a water-soluble hydroxide to the second aqueous solution of at least one nitrate or choride of elements selected from the group consisting of Ti, Zr and Sn until the pH of the solution is reached to a predetermined value within the range of 7 to 10 to precipitate at least one hydroxide of said elements, (c) adding ammonia gas or a precipitant composed of an aqueous solution of a water-soluble hydroxide to the third aqueous solution of lead acetate or lead nitrate until the pH of the solution is reached to a predetermined value within the range of 7 to 10 to precipitate lead hydroxide, (d) mixing the carbonate precipitated from the first aqueous solution, the hydroxide precipitated from the second solution, and hydroxide precipitated from the third aqueous solution; and (e) treating the resultant mixture with heat to form complex oxides of said elements.

    摘要翻译： 一种制备粉末状陶瓷原料的方法，包括以下步骤： （a）将含有水溶性碳酸盐的气态二氧化碳或沉淀剂添加到含有选自Ba，Sr，Ca和Mg的元素中的至少一种硝酸盐或氯化物的第一水溶液中，直到溶液的pH 达到预定值在7至10的范围内以沉淀至少一种所述元素的碳酸盐，（b）将氨气或由水溶性氢氧化物的水溶液组成的沉淀剂加入到第二水溶液中 至少一种选自Ti，Zr和Sn的元素的硝酸盐或氯化物，直到溶液的pH达到7至10范围内的预定值，以沉淀至少一种所述元素的氢氧化物，（c） 将氨气或由水溶性氢氧化物的水溶液组成的沉淀剂加入到乙酸铅或硝酸铅的第三水溶液中直到溶液的pH达到预定值 7至10的沉淀以沉淀氢氧化铅，（d）将从第一水溶液沉淀的碳酸盐，从第二溶液沉淀的氢氧化物和从第三水溶液沉淀的氢氧化物混合; 和（e）用热处理所得混合物以形成所述元素的复合氧化物。

    Process for preparing powdered ceramic raw materials of complex oxide
    7.
    发明授权
    Process for preparing powdered ceramic raw materials of complex oxide 失效
    复合氧化物粉末陶瓷原料的制备方法

    公开(公告)号：US4820669A

    公开(公告)日：1989-04-11

    申请号：US856038

    申请日：1986-04-25

    申请人： Yoshiharu Kato ,  Shinsei Okabe ,  Shozo Kojima ,  Yasunobu Yoneda

    发明人： Yoshiharu Kato ,  Shinsei Okabe ,  Shozo Kojima ,  Yasunobu Yoneda

    IPC分类号： C04B35/626 ,  C01G21/00 ,  C01G21/02 ,  C01G23/00 ,  C01G25/00 ,  C01G45/00 ,  C04B35/491 ,  C04B35/46

    CPC分类号： C01G45/1264 ,  C01G21/02 ,  C01G23/003 ,  C01G25/006 ,  C01G45/006 ,  C01G45/125 ,  C04B35/491 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/40

    摘要： A process for preparing a powdered ceramic raw material comprises the steps of(a) adding ammonia gas or an alkali to a first aqueous solution containing a water-soluble salt of lead capable of being precipitated as a hydroxide until the pH of the first solution reaches a value within the range of 9 to 10 to form a precipitate of lead hydroxide;(b) adding ammonia gas or alkali to a second aqueous solution containing at least one water-soluble salt or ceramic components other than lead capable of being precipitated as a hydroxide until the pH of the second solution reaches a value within the range of 9 to 10 to form a precipitate of hydroxide of said ceramic components;(c) mixing the resulting reaction mixtures, followed by separation of the precipitates of hydroxides from solution, washing with water and drying; and(d) calcining the precipitate to form complex oxides of said ceramic material.

    摘要翻译： 制备粉末状陶瓷原料的方法包括以下步骤：（a）将氨气或碱添加到含有能够以氢氧化物沉淀的铅的水溶性盐的第一水溶液中，直到第一溶液的pH达到 在9至10的范围内的值以形成氢氧化铅的沉淀物; （b）将氨气或碱加入含有至少一种水溶性盐或除了能够以氢氧化钠沉淀的铅的陶瓷成分的第二水溶液，直到第二溶液的pH达到9〜 以形成所述陶瓷组分的氢氧化物沉淀物; （c）混合得到的反应混合物，然后从溶液中分离氢氧化物沉淀物，用水洗涤并干燥; 和（d）煅烧沉淀物以形成所述陶瓷材料的复合氧化物。

    Method of producing laminated ceramic capacitors
    8.
    发明授权
    Method of producing laminated ceramic capacitors 失效
    叠层陶瓷电容器的制造方法

    公开(公告)号：US4771520A

    公开(公告)日：1988-09-20

    申请号：US852141

    申请日：1986-04-15

    申请人： Yukio Tanaka ,  Shin-ichi Takakuta ,  Shozo Kojima ,  Emiko Yamaguchi

    发明人： Yukio Tanaka ,  Shin-ichi Takakuta ,  Shozo Kojima ,  Emiko Yamaguchi

    IPC分类号： H01G4/30 ,  H01G7/00

    CPC分类号： H01G4/30 ,  Y10T29/435

    摘要： To obtain a plurality of laminated ceramic capacitors, in cutting a laminated body (14) formed of a plurality of ceramic green sheets (11) formed on their surfaces with electrically conductive films (12) to serve as internal electrodes, cutting is effected in such a manner that the electrically conductive films (12) are exposed on lateral surfaces (17), which are the surfaces that are not formed with external electrodes (22, 23). Then ceramic slurry (18) is applied to the lateral surfaces (17), thereby preventing the exposure of the internal electrodes (12) on the lateral surfaces (17) where connection to the external eletrodes (22, 23) is not desired. The invention makes effective use of the entire width of the ceramic layers forming the cut laminated body (16) so as to obtain electrostatic capacity in a space-efficient manner.

    摘要翻译： 为了获得多个层压陶瓷电容器，在切割由形成在其表面上的多个陶瓷生片（11）形成的层叠体（14）的导电膜（12）中以用作内部电极时，可以进行切割 导电膜（12）在不形成有外部电极（22,23）的表面的侧面（17）上露出的方式。 然后将陶瓷浆料（18）施加到侧面（17）上，从而防止在不需要与外部电极（22,23）连接的侧表面（17）上暴露内部电极（12）。 本发明有效地利用形成切割层叠体（16）的陶瓷层的整个宽度，从而以空间效率的方式获得静电容量。

    Apparatus for manufacturing a laminated unit of ceramic green sheets
    9.
    发明授权
    Apparatus for manufacturing a laminated unit of ceramic green sheets 失效
    陶瓷生片层叠单元的制造装置

    公开(公告)号：US4698192A

    公开(公告)日：1987-10-06

    申请号：US714381

    申请日：1985-03-21

    申请人： Saburo Kuze ,  Yoshiharu Kato ,  Shozo Kojima

    发明人： Saburo Kuze ,  Yoshiharu Kato ,  Shozo Kojima

    IPC分类号： B32B43/00 ,  B28B5/02 ,  B28B13/02 ,  B28B19/00 ,  B32B18/00 ,  C04B41/45 ,  C04B41/81 ,  H05K1/03 ,  H05K3/46 ,  B29C31/02 ,  B29C39/20

    CPC分类号： C04B41/009 ,  B28B13/02 ,  B28B19/00 ,  B28B5/027 ,  C04B41/4578 ,  C04B41/81 ,  H05K1/0306 ,  H05K3/4611 ,  H05K3/4629

    摘要： An apparatus for manufacturing a laminated unit of ceramic green sheets comprises an endless belt, and an applying apparatus provided at a predetermined position on the running path of the endless belt. The applying apparatus includes a reservoir for storing a ceramic slurry and a moveable blade. When the belt runs with the blade spaced a predetermined distance from the top surface of the endless belt, the ceramic slurry flows out through a gap between the blade and the belt and, thus, is applied on the belt to a predetermined thickness. The applied ceramic slurry is dried by a drier so as to form a ceramic green sheet. A conductive paste is printed on the top surface of the ceramic green sheet by a printing apparatus. The printed conductive paste is dried by a drier. The ceramic green sheet with the conductive paste printed thereon is brought again to the applying apparatus due to the movement of the endless belt, the blade of the applying apparatus is further displaced upward, and ceramic slurry is applied on the previously formed ceramic green sheet. By repeating such applied again on the ceramic green sheet. By repeating such a process, a laminated unit of the ceramic green sheets is obtained.

    摘要翻译： 一种用于制造陶瓷生片的层叠单元的装置包括环形带和设置在环形带的行进路径上的预定位置处的施加装置。 施加装置包括用于存储陶瓷浆料和可移动叶片的储存器。 当带子与环形带的顶表面隔开预定距离的叶片运行时，陶瓷浆料通过叶片和带之间的间隙流出，因此被施加到带上预定的厚度。 将所施加的陶瓷浆料通过干燥器干燥以形成陶瓷生片。 导电浆料通过印刷装置印刷在陶瓷生片的顶表面上。 印刷的导电浆料通过干燥器干燥。 由于环形带的移动，其上印有导电浆料的陶瓷生片被再次带到施加装置，施加装置的刀片进一步向上移动，并且将陶瓷浆料施加在预先形成的陶瓷生片上。 通过重复这种再次应用于陶瓷生片上。 通过重复这样的处理，得到陶瓷生片的层压单元。