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18 条记录 (耗时 0.022 秒)

    Reduction-reoxidation type semiconducting ceramic capacitor
    1.
    发明授权
    Reduction-reoxidation type semiconducting ceramic capacitor 失效
    还原 - 再氧化型半导体陶瓷电容器

    公开(公告)号：US4073846A

    公开(公告)日：1978-02-14

    申请号：US654979

    申请日：1976-02-03

    申请人： Hitoshi Masumura ,  Shinobu Fujiwara ,  Hitoshi Tanaka

    发明人： Hitoshi Masumura ,  Shinobu Fujiwara ,  Hitoshi Tanaka

    IPC分类号： C04B35/465 ,  C04B35/475 ,  H01G4/12 ,  C04B35/46

    CPC分类号： H01G4/1272 ,  C04B35/465 ,  C04B35/475

    摘要： An improved reduction-reoxidation type semiconducting ceramic capacitor and the method for producing the same are disclosed. The main components of the substrate of the capacitor are CaTiO.sub.3, SrTiO.sub.3 and Bi.sub.2 O.sub.3 .multidot.xTiO.sub.2. Said substrate also contains at least one member selected from the group consisting of manganese, cobalt, nickel, chromium, vanadium, niobium, tantalum, lanthanum and cerium ions in total amounts of 0.025 to 0.4% by weight. The capacitor according to the present invention excels, in the temperature independency of the capacitance and tan .delta., etc.

    摘要翻译： 公开了一种改进的还原再氧化型半导体陶瓷电容器及其制造方法。 电容器基板的主要部件是CaTiO3，SrTiO3和Bi2O3xxTiO2。 所述基材还含有总量为0.025〜0.4重量％的选自锰，钴，镍，铬，钒，铌，钽，镧和铈离子中的至少一种。 根据本发明的电容器在电容和tanδ等的独立性方面优异。

    Reduction-reoxidation type semiconducting ceramic capacitor
    2.
    发明授权
    Reduction-reoxidation type semiconducting ceramic capacitor 失效
    还原 - 再氧化型半导体陶瓷电容器

    公开(公告)号：US3995300A

    公开(公告)日：1976-11-30

    申请号：US497333

    申请日：1974-08-14

    申请人： Hitoshi Masumura ,  Shinobu Fujiwara ,  Hitoshi Tanaka

    发明人： Hitoshi Masumura ,  Shinobu Fujiwara ,  Hitoshi Tanaka

    IPC分类号： C04B35/465 ,  C04B35/475 ,  H01G4/12 ,  H01L29/95

    CPC分类号： H01G4/1272 ,  C04B35/465 ,  C04B35/475

    摘要： An improved reduction-reoxidation type semiconducting ceramic capacitor and the method for producing the same are disclosed. The main components of the substrate of the capacitor are CaTiO.sub.3, SrTiO.sub.3 and Bi.sub.2 O.sub.3.xTiO.sub.2. Said substrate also contains at least one member selected from the group consisting of manganese, cobalt, nickel, chromium, vanadium, niobium, tantalum, lanthanum and cerium ions in total amounts of 0.025 to 0.4% by weight. The capacitor according to the present invention excels, in the temperature independency of the capacitance and tan .delta., etc.

    摘要翻译： 公开了一种改进的还原再氧化型半导体陶瓷电容器及其制造方法。 电容器基板的主要部件是CaTiO3，SrTiO3和Bi2O3.xTiO2。 所述基材还含有总量为0.025〜0.4重量％的选自锰，钴，镍，铬，钒，铌，钽，镧和铈离子中的至少一种。 根据本发明的电容器在电容和tanδ等的独立性方面优异。

    Sintered ceramic dielectric body
    4.
    发明授权
    Sintered ceramic dielectric body 失效
    烧结陶瓷绝缘体

    公开(公告)号：US4058404A

    公开(公告)日：1977-11-15

    申请号：US613739

    申请日：1975-09-16

    申请人： Shinobu Fujiwara ,  Hitoshi Tanaka

    发明人： Shinobu Fujiwara ,  Hitoshi Tanaka

    IPC分类号： C04B35/465 ,  C04B35/475 ,  H05K1/03 ,  C04B35/00 ,  C04B35/46

    CPC分类号： C04B35/465 ,  C04B35/475 ,  H05K1/0306

    摘要： A sintered ceramic dielectric body is provided which exhibits a high dielectric constant as well as a low dielectric loss and almost no variation in the dielectric constant and the dielectric loss with respect to a wide variation of an applied high AC or DC voltage, respectively. The ceramic dielectric composition consists essentially, by weight, of approximately 18 to 70% of strontium titanate (SrTiO.sub.3), approximately 4 to 75% of barium titanate (BaTiO.sub.3), 2.5 to 17.4% of bismuth oxide (Bi.sub.2 O.sub.3) and 1.7 to approximately 20% of titanium oxide (TiO.sub.2); the ratio by mole of the titanium oxide (TiO.sub.2) to the bismuth oxide (Bi.sub.2 O.sub.3) being within the range from approximately 1 to 18.

    摘要翻译： 提供一种烧结陶瓷电介质体，其分别具有高介电常数以及低的介电损耗，并且相对于所施加的高AC或DC电压的宽变化，介电常数和介电损耗几乎不变化。 陶瓷电介质组合物基本上由重量百分比组成的钛酸锶（SrTiO 3）的约18〜70％，钛酸钡（BaTiO 3）的4〜75％，氧化铋（Bi 2 O 3）的2.5〜17.4％，氧化铋（Bi 2 O 3）的1.7〜20 ％的氧化钛（TiO2）; 氧化钛（TiO 2）与氧化铋（Bi 2 O 3）的摩尔比在约1〜18的范围内。

    High dielectric constant type ceramic composition
    5.
    发明授权
    High dielectric constant type ceramic composition 失效
    高介电常数陶瓷组合物

    公开(公告)号：US4265668A

    公开(公告)日：1981-05-05

    申请号：US89245

    申请日：1979-10-29

    申请人： Shinobu Fujiwara ,  Kiyoshi Furukawa ,  Nobuaki Kikuchi ,  Osamu Iizawa ,  Hitoshi Tanaka

    发明人： Shinobu Fujiwara ,  Kiyoshi Furukawa ,  Nobuaki Kikuchi ,  Osamu Iizawa ,  Hitoshi Tanaka

    IPC分类号： C04B35/499 ,  H01B3/12 ,  H01G4/12 ,  C04B35/46 ,  C04B35/00

    CPC分类号： C04B35/499 ,  H01B3/12 ,  H01G4/1263

    摘要： A basic ceramic composition of high dielectric constant type ceramic composition comprises from 68.67 to 69.19% of PbO, from 3.67 to 4.09% of MgO, from 24.17 to 26.99% of Nb.sub.2 O.sub.5 and from 0.25 to 2.97% of TiO.sub.2, all percentages being by weight. Modified composition may comprise additive of Pb(Mn.sub.2/3 W.sub.1/3)O.sub.3, Pb(Mn.sub.1/3 Nb.sub.2/3)O.sub.3, Pb(Mn.sub.1/3 Ta.sub.2/3)O.sub.3, Pb(Mn.sub.1/2 W.sub.1/2)O.sub.3, MnO, and MgO. Modified composition may comprise Ba, Sr and Ca, which replace Pb of the basic ceramic composition. In a modified composition, the content of B site elements may be larger than that of A site element of an ABO.sub.3 crystal of the high dielectric constant type ceramic composition. A high dielectric constant, low dielectric loss, low temperature dependence of capacitance, high insulation resistance and a low sintering temperature are provided by the ceramic compositions of the present invention.

    摘要翻译： 高介电常数陶瓷组合物的基本陶瓷组合物包含68.67至69.19％的PbO，3.67至4.09％的MgO，24.17至26.99％的Nb2O5和0.25至2.97％的TiO2，所有百分比均为重量百分比。 改性组合物可以包括Pb（Mn2 / 3W1 / 3）O3，Pb（Mn1 / 3Nb2 / 3）O3，Pb（Mn1 / 3Ta2 / 3）O3，Pb（Mn1 / 2W1 / 2）O3，MnO和MgO 。 改性组合物可以包含替代碱性陶瓷组合物的Pb的Ba，Sr和Ca。 在改性组合物中，B位元素的含量可以大于高介电常数型陶瓷组合物的ABO 3晶体的A位元素的含量。 本发明的陶瓷组合物提供高介电常数，低介电损耗，低电容温度依赖性，高绝缘电阻和低烧结温度。

    High dielectric constant type ceramic composition
    6.
    发明授权
    High dielectric constant type ceramic composition 失效
    高介电常数陶瓷组合物

    公开(公告)号：US4235635A

    公开(公告)日：1980-11-25

    申请号：US61015

    申请日：1979-07-26

    申请人： Osamu Iizawa ,  Shinobu Fujiwara ,  Hisayoshi Ueoka ,  Kiyoshi Furukawa ,  Nobuaki Kikuchi ,  Hitoshi Tanaka

    发明人： Osamu Iizawa ,  Shinobu Fujiwara ,  Hisayoshi Ueoka ,  Kiyoshi Furukawa ,  Nobuaki Kikuchi ,  Hitoshi Tanaka

    IPC分类号： C04B35/497 ,  H01B3/12 ,  C04B35/26

    CPC分类号： H01B3/12 ,  C04B35/497

    摘要： A novel ceramic composition exhibiting a solid solution structure of Pb(Fe.sub.2/3 W.sub.1/3)O.sub.3 --Pb(ZrO.sub.3), can be sintered at a low sintering temperature; have a high insulation resistance; have a relatively high dielectric constant in the high dielectric type ceramic dielectrics; have a low dependence of dielectric constant upon temperature, and; have a low dielectric loss.A particular amount of the additives, i.e., MnO, Pb(Mn.sub.1/3 Nb.sub.2/3)O.sub.3, Pb(Mn.sub.1/2 W.sub.1/2)O.sub.3, Pb(Mn.sub.2/3 W.sub.1/3)O.sub.3, Pb(Mn.sub.1/3 Ta.sub.2/3)O.sub.3, Cr.sub.2 O.sub.3 and CeO.sub.2, is added into the composition mentioned above.

    摘要翻译： 表现出Pb（Fe2 / 3W1 / 3）O3-Pb（ZrO3）固溶体结构的新型陶瓷组合物可以在低烧结温度下烧结; 具有很高的绝缘电阻; 在高介电常数陶瓷电介质中具有较高的介电常数; 介电常数对温度的依赖性低， 具有低介电损耗。 MnO，Pb（Mn1 / 3Nb2 / 3）O3，Pb（Mn1 / 2W1 / 2）O3，Pb（Mn2 / 3W1 / 3）O3，Pb（Mn1 / 3Ta2 / 3）O3 ，Cr 2 O 3和CeO 2加入到上述组合物中。

    Ceramic dielectric composition
    10.
    发明授权
    Ceramic dielectric composition 失效
    陶瓷电介质组成

    公开(公告)号：US4017320A

    公开(公告)日：1977-04-12

    申请号：US633237

    申请日：1975-11-19

    申请人： Shinobu Fujiwara ,  Hitoshi Tanaka

    发明人： Shinobu Fujiwara ,  Hitoshi Tanaka

    IPC分类号： C04B35/47 ,  H01B3/12 ,  C04B35/00 ,  C04B35/46

    CPC分类号： H01B3/12 ,  C04B35/47

    摘要： A ceramic dielectric composition is provided including 30 to 94% by mol of SrTiO.sub.3, 1 to 22% by mol of Bi.sub.2 O.sub.3 and 5 to 69% by mol of TiO.sub.2, and further including 0.1 to 20% by weight of MgO with respect to the total weight of the above-mentioned three compounds SrTiO.sub.3, Bi.sub.2 O.sub.3 and TiO.sub.2, whereby the ceramic dielectric composition has a high dielectric constant and a low dielectric loss and further the variations of the dielectric constant and the dielectric loss with respect to the variation of an applied voltage, are respectively, very small.

    摘要翻译： 提供一种陶瓷电介质组合物，其包含30至94摩尔％的SrTiO 3，1至22摩尔％的Bi 2 O 3和5至69摩尔％的TiO 2，并且还包括相对于总量的0.1至20重量％的MgO 上述三种化合物SrTiO 3，Bi 2 O 3和TiO 2的重量，由此陶瓷电介质组合物具有高介电常数和低介电损耗，并且还有相对于施加电压变化的介电常数和介电损耗的变化 ，分别很小。