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    Production method of polycrystalline ceramic body
    11.
    发明申请
    Production method of polycrystalline ceramic body 失效
    多晶陶瓷体的生产方法

    公开(公告)号：US20060091588A1

    公开(公告)日：2006-05-04

    申请号：US11258356

    申请日：2005-10-25

    申请人： Masaya Nakamura ,  Toshiatsu Nagaya ,  Tatsuhiko Nonoyama ,  Hisaaki Takao ,  Yasuyoshi Saito ,  Takahiko Homma ,  Kazumasa Takatori

    发明人： Masaya Nakamura ,  Toshiatsu Nagaya ,  Tatsuhiko Nonoyama ,  Hisaaki Takao ,  Yasuyoshi Saito ,  Takahiko Homma ,  Kazumasa Takatori

    IPC分类号： C04B33/32

    CPC分类号： C04B35/495 ,  C04B35/6303 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3267 ,  C04B2235/3291 ,  C04B2235/3294 ,  C04B2235/3298 ,  C04B2235/5292 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/787 ,  C04B2235/9615 ,  H01L41/1873 ,  H01L41/43

    摘要： To provide a production method of a polycrystalline ceramic body with excellent density, a preparation step, a mixing step, a forming step and a heat-treating step are performed. In the preparation step, a coarse particle ceramic powder, and a fine particle powder having an average particle diameter of ⅓ or less of the average particle diameter of the coarse particle ceramic powder are prepared. In the mixing step, the coarse particle ceramic powder and the fine particle powder are mixed to produce a raw material mixture. In the forming step, the raw material mixture is formed to a shaped body. In the heat-treating step, the shaped body is heated and thereby sintered to produce a polycrystalline ceramic body. In the heat-treating step, a temperature elevating process and a first holding process are performed and at the same time, a second holding process and/or a cooling process are performed. In the temperature elevating process, heating is started to elevate the temperature and in the first holding process, the shaped body is held at a temperature T1° C. In the second holding process, the shaped body is held at a temperature T2° C. lower than the temperature T1° C. In the cooling process, the shaped body is cooled at a temperature dropping rate of 60° C./h or less from the temperature T1° C.

    摘要翻译： 为了提供具有优异密度的多晶陶瓷体的制造方法，进行制备步骤，混合步骤，成形步骤和热处理步骤。 在制备步骤中，制备粗颗粒陶瓷粉末和平均粒径为粗颗粒陶瓷粉末的平均粒径的1/3以下的细颗粒粉末。 在混合步骤中，将粗颗粒陶瓷粉末和细颗粒粉末混合以制备原料混合物。 在成形步骤中，将原料混合物形成为成形体。 在热处理工序中，加热成形体，由此烧结而制成多晶体。 在热处理步骤中，进行升温处理和第一保持处理，同时进行第二保持处理和/或冷却处理。 在升温过程中，加热开始升温，在第一保持过程中，成形体保持在T1℃的温度。在第二保持过程中，成形体保持在T2℃的温度。 低于温度T1℃。在冷却过程中，成形体从温度T1℃以60℃/小时以下的降温速度冷却。

    Physical sensor
    12.
    发明授权
    Physical sensor 有权
    物理传感器

    公开(公告)号：US07059203B2

    公开(公告)日：2006-06-13

    申请号：US10988642

    申请日：2004-11-16

    申请人： Mitsuru Asai ,  Hiroaki Makino ,  Takahiko Homma ,  Kazumasa Takatori ,  Jun Sugiyama

    发明人： Mitsuru Asai ,  Hiroaki Makino ,  Takahiko Homma ,  Kazumasa Takatori ,  Jun Sugiyama

    IPC分类号： G01D7/00

    CPC分类号： G01L1/20

    摘要： A physical sensor having a pressure sensing layer having such property that electrical resistance is changed by application of a stress, and electrical insulating layers which are integrally formed on opposite two surfaces of the pressure sensing layer, respectively, wherein the pressure sensing layer has a matrix comprising glass, and an electrically conductive particle having electrical conductivity and dispersed in the matrix and preferably, the electrically conductive particle includes RuO2, and a thickness of the pressure sensing layer is 1 μm to 200 μm, and it is preferable that one pair of electrodes are disposed on the pressure sensing layer.

    摘要翻译： 一种物理传感器，其具有通过施加应力而具有使电阻发生变化的性质的压力感测层，以及一体地形成在压力感测层的相对的两个表面上的电绝缘层，其中压力感测层具有矩阵 包含玻璃和具有导电性并分散在基质中的导电颗粒，并且优选地，导电颗粒包括RuO 2 N 2，并且压力感测层的厚度为1μm至200μm，以及 优选地，一对电极设置在压力感测层上。

    Physical sensor
    13.
    发明申请
    Physical sensor 有权
    物理传感器

    公开(公告)号：US20050103124A1

    公开(公告)日：2005-05-19

    申请号：US10988642

    申请日：2004-11-16

    申请人： Mitsuru Asai ,  Hiroaki Makino ,  Takahiko Homma ,  Kazumasa Takatori ,  Jun Sugiyama

    发明人： Mitsuru Asai ,  Hiroaki Makino ,  Takahiko Homma ,  Kazumasa Takatori ,  Jun Sugiyama

    IPC分类号： G01L1/20 ,  G01L3/00

    CPC分类号： G01L1/20

    摘要： A physical sensor having a pressure sensing layer having such property that electrical resistance is changed by application of a stress, and electrical insulating layers which are integrally formed on opposite two surfaces of the pressure sensing layer, respectively. The pressure sensing layer comprises a matrix comprising glass, and an electrically conductive particle having electrical conductivity and dispersed in the matrix. Preferably, the electrically conductive particle comprises RuO2, and a thickness of the pressure sensing layer is 1 μm to 200 μm. It is preferable that one pair of electrodes are disposed on the pressure sensing layer.

    摘要翻译： 具有压力感测层的物理传感器，其具有通过施加应力而使电阻发生变化的特性，以及分别一体地形成在压力感测层的相对的两个表面上的电绝缘层。 压力感测层包括包含玻璃的基体和具有导电性并分散在基质中的导电颗粒。 优选地，导电颗粒包括RuO 2 N 2，并且压力感测层的厚度为1μm至200μm。 优选地，一对电极设置在压力感测层上。

    Process for producing composite oxide powder containing cerium and zirconium
    14.
    发明授权
    Process for producing composite oxide powder containing cerium and zirconium 失效
    制备含有铈和锆的复合氧化物粉末的方法

    公开(公告)号：US5762894A

    公开(公告)日：1998-06-09

    申请号：US498701

    申请日：1995-07-03

    申请人： Kazumasa Takatori ,  Naoyoshi Watanabe ,  Hideo Sobukawa ,  Haruo Doi

    发明人： Kazumasa Takatori ,  Naoyoshi Watanabe ,  Hideo Sobukawa ,  Haruo Doi

    IPC分类号： B01J23/10 ,  C01G25/00 ,  C01F17/00 ,  B01J23/00

    CPC分类号： B82Y30/00 ,  B01J23/10 ,  C01G25/00 ,  C01G25/006 ,  C01P2004/64 ,  C01P2006/12

    摘要： A process for producing a powder of composite oxide which includes cerium and zirconium, or which includes cerium, zirconium and further a rare-earth element other cerium. The process includes: dissolving nitrate, sulfate and/or acetate of constituent elements of the composite oxide into water in a predetermined ratio; and spraying and heating a resulting aqueous solution to oxidize the constituent elements of the composite oxide for converting them into a powder of a composite oxide. The thus produced composite oxide powder is micro-fine, homogeneous, and heat resistant.

    摘要翻译： 一种复合氧化物粉末的制造方法，其包括铈和锆，或包括铈，锆和其它稀土元素的其它铈。 该方法包括：将复合氧化物的构成元素的硝酸盐，硫酸盐和/或乙酸盐以预定比例溶解在水中; 喷涂加热得到的水溶液，氧化复合氧化物的构成元素，将其转化为复合氧化物粉末。 由此制备的复合氧化物粉末是微细的，均匀的和耐热的。

    Hollow oxide particle and process for producing the same
    15.
    发明授权
    Hollow oxide particle and process for producing the same 失效
    中空氧化物颗粒及其制备方法

    公开(公告)号：US6004525A

    公开(公告)日：1999-12-21

    申请号：US166122

    申请日：1998-10-05

    申请人： Takao Tani ,  Kazumasa Takatori ,  Nobuo Kamiya

    发明人： Takao Tani ,  Kazumasa Takatori ,  Nobuo Kamiya

    IPC分类号： C01B13/32 ,  C01B13/34 ,  C01F7/02 ,  C01F7/16 ,  C01F7/34 ,  C01G23/047 ,  C01G49/02 ,  C01F7/00

    CPC分类号： B82Y30/00 ,  C01B13/328 ,  C01B13/34 ,  C01F7/02 ,  C01F7/162 ,  C01F7/34 ,  C01G23/047 ,  C01G49/02 ,  C01P2002/32 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/34 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12

    摘要： The present invention provides a hollow oxide particle including a shell wall constituting a hollow room, and the shell wall has a thickness of 20 nm or less. The shell wall may be mainly composed from at least one selected from the group consisting of alumina, spinel, iron oxides, yttrium oxides, and titanium oxides. A process for producing the hollow oxide particle comprises the steps of: forming a Water in Oil (W/O) type emulsion including aqueous microspheres having a each diameter of 100 nm or more, by adding an organic solvent to an aqueous solution dissolving and/or suspending at least one of metal salts and metal compounds; and forming the hollow oxide particle by atomizing the Water in Oil (W/O) type emulsion to burn. When the hollow oxide particle is brought into contact with a water-containing solution, a surface of the shell wall may have a minutely irregular surface.

    摘要翻译： 本发明提供一种中空氧化物颗粒，其包括构成中空室的壳壁，壳壁的厚度为20nm以下。 壳壁可以主要由选自氧化铝，尖晶石，氧化铁，氧化钇和氧化钛中的至少一种构成。 一种中空氧化物颗粒的制造方法，其特征在于，通过向溶解有水溶液和/或水溶液的水溶液中添加有机溶剂，形成水包油（W / O）型乳液，其包含各直径为100nm以上的水性微球， 或悬浮金属盐和金属化合物中的至少一种; 并通过雾化油（W / O）型乳液来燃烧形成中空氧化物颗粒。 当中空氧化物颗粒与含水溶液接触时，壳壁的表面可能具有非常不规则的表面。

    Method for producing oxide powder
    16.
    发明授权
    Method for producing oxide powder 失效
    氧化物粉末的制造方法

    公开(公告)号：US5811068A

    公开(公告)日：1998-09-22

    申请号：US788693

    申请日：1997-01-24

    申请人： Kazumasa Takatori ,  Hideo Sobukawa ,  Naoyoshi Watanabe

    发明人： Kazumasa Takatori ,  Hideo Sobukawa ,  Naoyoshi Watanabe

    IPC分类号： C01B13/20 ,  C01B13/34 ,  C01F17/00 ,  C01G25/00

    CPC分类号： C01G25/00 ,  C01B13/20 ,  C01B13/34 ,  C01F17/0043 ,  C01P2002/77 ,  C01P2006/12

    摘要： Disclosed is a method for producing oxide powders and complex oxide powders having an oxygen amount smaller than the stoichiometric amount. The method comprises: spraying a combustible liquid that contains at least one raw material of metals capable of having a plural number of valences and compounds of such metals; and firing the raw material to give a powder of an oxide of at least one of said metals. The oxygen amount in the atmosphere in which the combustible liquid containing said raw material is sprayed and fired is smaller than the total of the oxygen amount necessary for the complete combustion of said combustible liquid and the oxygen amount necessary for the conversion of said raw material into an oxide that is the most stable in air at room temperature.

    摘要翻译： 公开了一种氧化物粉末的制造方法，其氧化量少于化学计量量的复合氧化物粉末。 该方法包括：喷射含有至少一种能够具有多个价数的金属原料和这种金属的化合物的可燃液体; 并焙烧所述原料以得到至少一种所述金属的氧化物的粉末。 包含所述原料的可燃性液体喷射和燃烧的气氛中的氧气量小于所述可燃液体的完全燃烧所需的氧气量和将所述原料转化为必需的氧气量的总和 在室温下空气中最稳定的氧化物。

    Catalyst support and catalyst and process for producing the same
    18.
    发明授权
    Catalyst support and catalyst and process for producing the same 失效
    催化剂载体和催化剂及其制备方法

    公开(公告)号：US06221805B1

    公开(公告)日：2001-04-24

    申请号：US09256234

    申请日：1999-02-24

    申请人： Koichi Yamashita ,  Shinji Tsuji ,  Naoto Miyoshi ,  Oji Kuno ,  Masahiko Sugiyama ,  Kazumasa Takatori ,  Takao Tani ,  Nobuo Kamiya

    发明人： Koichi Yamashita ,  Shinji Tsuji ,  Naoto Miyoshi ,  Oji Kuno ,  Masahiko Sugiyama ,  Kazumasa Takatori ,  Takao Tani ,  Nobuo Kamiya

    IPC分类号： B01J2304

    CPC分类号： B01D53/945 ,  B01J21/04 ,  B01J37/0045 ,  B01J37/0236 ,  Y02T10/22

    摘要： A catalyst support, a catalyst using the catalyst support and a process for producing the same are disclosed. For instance, the catalyst support includes a composite oxide powder produced by spraying and burning a W/O type emulsion, the W/O type emulsion including an aqueous solution dispersed in an organic solvent, the aqueous solution containing aluminum as a major component and at least one co-metallic element in addition to the aluminum. Thus, the catalyst support can be produced less expensively without using any expensive alkoxide. Further, due to the spraying and burning, the composite oxide powder is composed of porous hollow particles which have a very thin shell thickness of dozens of nanometers, and makes the catalyst support which is amorphous and exhibits a large specific surface area. Hence, the catalyst support can maintain the large specific surface area even after a high-temperature durability test. Furthermore, the composite oxide powder includes the co-metallic element which is composited in such a highly dispersed manner that the agglomerated sulfates are less likely to be produced. Therefore, the catalyst support is inhibited from being poisoned by sulfur.

    摘要翻译： 公开了催化剂载体，使用催化剂载体的催化剂及其制备方法。 例如，催化剂载体包括通过喷雾和燃烧W / O型乳液而制备的复合氧化物粉末，W / O型乳液包括分散在有机溶剂中的水溶液，含有铝作为主要成分的水溶液， 除了铝之外还有至少一种共金属元素。 因此，不用任何昂贵的醇盐就可以不昂贵地生产催化剂载体。 此外，由于喷涂和燃烧，复合氧化物粉末由具有非常薄的几十纳米的壳厚度的多孔中空颗粒组成，并使催化剂载体是无定形的并且具有大的比表面积。 因此，即使在高温耐久试验之后，催化剂载体也能保持较大的比表面积。 此外，复合氧化物粉末包括以非常分散的方式复合的共金属元素，使得不太可能生产聚集的硫酸盐。 因此，抑制催化剂载体被硫中毒。