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1. 发明授权

US08021451B2 Fine α-alumina particle 失效
标题翻译：精细的α-氧化铝颗粒
公开(公告)号：US08021451B2
公开(公告)日：2011-09-20
申请号：US11490023
申请日：2006-07-21
申请人： Hajime Maki , Yoshiaki Takeuchi
发明人： Hajime Maki , Yoshiaki Takeuchi
IPC分类号： B24D3/02 , D24D3/02 , C09C1/68 , C09K3/14 , C04B35/00 , B28B1/00 , B28B3/00 , B28B5/00
CPC分类号： C01F7/02 , C01F7/023 , C01P2002/74 , C01P2006/10 , C01P2006/80 , C04B35/111 , C04B35/6261 , C04B35/6268 , C04B2235/3206 , C04B2235/5409 , C04B2235/5436 , C04B2235/604 , C04B2235/6562 , C04B2235/72 , C04B2235/77 , C09K3/1463
摘要： The present invention provides a fine α-alumina particle having a degree of α-transformation of not less than 95%, a BET specific surface area of not less than 10 m2/g, a degree of necking of not more than 30%, and a total content of Si, Fe, Cu, Na and Mg of not more than 500 ppm.
摘要翻译：本发明提供α转变度不小于95％，BET比表面积不小于10m 2 / g，缩颈度不大于30％的细α-氧化铝颗粒，以及 Si，Fe，Cu，Na和Mg的总含量不超过500ppm。

2. 发明申请

US20110156323A1 PROCESS FOR PRODUCING ALUMINUM TITANATE-BASED CERAMICS 审中-公开
标题翻译：生产基于钛酸铝的陶瓷的工艺
公开(公告)号：US20110156323A1
公开(公告)日：2011-06-30
申请号：US13002589
申请日：2009-09-02
申请人： Hajime Maki , Keiichiro Suzuki , Kentaro Iwasaki
发明人： Hajime Maki , Keiichiro Suzuki , Kentaro Iwasaki
IPC分类号： C04B35/478
CPC分类号： C04B35/62655 , C04B35/478 , C04B35/6261 , C04B35/6263 , C04B35/6264 , C04B35/62807 , C04B35/62813 , C04B35/62823 , C04B35/632 , C04B38/0645 , C04B2235/3206 , C04B2235/3217 , C04B2235/3218 , C04B2235/322 , C04B2235/3222 , C04B2235/3232 , C04B2235/3234 , C04B2235/3237 , C04B2235/3418 , C04B2235/3427 , C04B2235/3463 , C04B2235/36 , C04B2235/3826 , C04B2235/3852 , C04B2235/3873 , C04B2235/3886 , C04B2235/401 , C04B2235/402 , C04B2235/404 , C04B2235/44 , C04B2235/441 , C04B2235/442 , C04B2235/443 , C04B2235/444 , C04B2235/446 , C04B2235/447 , C04B2235/448 , C04B2235/449 , C04B2235/5409 , C04B2235/5436 , C04B2235/652 , C04B2235/656 , C04B2235/6562 , C04B2235/6567 , C04B2235/658 , C04B2235/6582 , C04B2235/81 , C04B2235/95 , C04B2235/9607 , C04B2235/9615 , C04B38/0054
摘要： The invention provides a process for producing a shaped body of aluminum titanate-based ceramic such as aluminum titanate or aluminum magnesium titanate having smaller shrinkage ratio relative to a shaped body of a starting material mixture, and having a smaller coefficient of thermal expansion. The invention is a process for producing an aluminum titanate-based ceramic, comprising firing a starting material mixture containing a titanium source material and an aluminum source material, wherein the BET specific surface area of the aluminum source material is 0.1 m2/g or more and 5 m2/g or less.
摘要翻译：本发明提供了一种相对于原料混合物的成形体具有较小收缩率的钛酸铝或钛酸铝的钛酸铝系陶瓷成形体的制造方法，具有较小的热膨胀系数。本发明是一种钛酸铝系陶瓷的制造方法，其特征在于，烧成含有钛源材料和铝源材料的原料混合物，其中，所述铝源材料的BET比表面积为0.1m 2 / g以上， 5 m2 / g以下。

3. 发明授权

US07858067B2 Method for producing alpha-alumina particle 失效
标题翻译：生产α-氧化铝颗粒的方法
公开(公告)号：US07858067B2
公开(公告)日：2010-12-28
申请号：US11076836
申请日：2005-03-10
申请人： Hajime Maki , Yoshiaki Takeuchi
发明人： Hajime Maki , Yoshiaki Takeuchi
IPC分类号： C01F7/00
CPC分类号： C09K3/1409 , C01F7/02 , C01F7/308 , C01F7/441 , C01P2002/72 , C01P2002/74 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/22
摘要： The present invention provides a method of producing an α-alumina particle. The method of producing an α-alumina particle comprises steps of: (1) heating a mixture containing an amorphous alumina and a pyrolyzable salt at temperature of not less than the temperature at which the pyrolyzable salt is decomposed, and less than the temperature at which the amorphous alumina transforms to α-alumina; and (2) calcining the resultant under a partial pressure of water vapor of about 600 Pa or less.
摘要翻译：本发明提供一种α-氧化铝颗粒的制造方法。制造α-氧化铝颗粒的方法包括以下步骤：（1）在不低于可热分解盐分解的温度的温度下加热含有无定形氧化铝和可热解盐的混合物，并且小于无定形氧化铝转化为α-氧化铝; 和（2）在约600Pa以下的水蒸汽的分压下煅烧所得物。

4. 发明申请

US20100317508A1 PROCESS FOR PRODUCING ALUMINUM TITANATE CERAMICS 审中-公开
标题翻译：生产钛酸铝陶瓷的方法
公开(公告)号：US20100317508A1
公开(公告)日：2010-12-16
申请号：US12811451
申请日：2008-12-25
申请人： Hajime Maki , Tetsuro Tohma , Keiichiro Suzuki
发明人： Hajime Maki , Tetsuro Tohma , Keiichiro Suzuki
IPC分类号： C04B35/465 , C04B35/462
CPC分类号： C04B35/478 , C04B35/62615 , C04B38/00 , C04B2111/00793 , C04B2111/0081 , C04B2111/00844 , C04B2111/0087 , C04B2235/3206 , C04B2235/3418 , C04B2235/3472 , C04B2235/36 , C04B2235/6562 , C04B2235/80 , C04B2235/81 , C04B38/067 , C04B38/0675 , C04B38/068
摘要： The invention is to provide a process for producing an aluminium titanate ceramic by firing a pre-mixture of a titania source powder, an alumina source powder and a magnesia source powder, for a short period of time. The production process of the invention comprises mixing a titania source powder and an alumina source powder followed by dry process grinding in the presence of grinding media under a grinding condition of an acceleration of at least 2G to give a pre-mixture, and firing the resulting pre-mixture. The titania source powder and the alumina source powder may be mixed together with a magnesia source powder and a silica source powder. Preferably, a vibration mill is used for the grinding. Grinding the aluminium titanate ceramic produced according to the production process of the invention gives an aluminium titanate ceramic powder.
摘要翻译：本发明提供一种通过在短时间内烧结二氧化钛源粉末，氧化铝源粉末和氧化镁源粉末的预混合物来制造钛酸铝陶瓷的方法。本发明的制备方法包括将二氧化钛源粉末和氧化铝源粉末混合，然后在研磨介质存在下，在至少2G的加速度的研磨条件下进行干法研磨，得到预混合物，并焙烧所得预混合二氧化钛源粉末和氧化铝源粉末可以与氧化镁源粉末和二氧化硅源粉末一起混合。优选地，使用振动磨机进行研磨。研磨根据本发明的制造方法制造的钛酸铝陶瓷，得到钛酸铝陶瓷粉末。

5. 发明申请

US20120094825A1 METHOD FOR PRODUCING ELECTRODE CATALYST 审中-公开
标题翻译：生产电极催化剂的方法
公开(公告)号：US20120094825A1
公开(公告)日：2012-04-19
申请号：US13377041
申请日：2010-06-16
申请人： Takeshi Hattori , Yutaka Ito , Hajime Maki , Kenichiro Ota
发明人： Takeshi Hattori , Yutaka Ito , Hajime Maki , Kenichiro Ota
IPC分类号： B01J21/18
CPC分类号： H01M4/90 , B01J21/063 , B01J21/066 , B01J21/18 , B01J35/1014 , B01J35/1019 , B01J37/0215 , B01J37/0221 , B01J37/0225 , C25B11/04 , Y02P20/544
摘要： A method for producing an electrode catalyst, comprising a step of calcining a precursor of the electrode catalyst under conditions under which a second material defined below can change into a carbonaceous material, the precursor having been obtained by continuously hydrothermally reacting a mixture containing a first material defined below and the second material defined below in the presence of supercritical or subcritical water, wherein the first material is defined to be a metal compound composed of one or more metal elements selected from the group consisting of the elements of Group 4A and the elements of Group 5A group and one or more non-metal elements selected from the group consisting of hydrogen, nitrogen, chlorine, carbon, boron, sulfur, and oxygen, and the second material is defined to be a precursor of a carbonaceous material.
摘要翻译：一种电极催化剂的制造方法，其特征在于，在下述规定的第二材料可以变成碳质材料的条件下煅烧所述电极催化剂的前体的步骤，所述前体是通过将包含第一材料的混合物在下文定义的第二材料和在超临界或亚临界水存在下定义的第二材料，其中第一材料被定义为由一种或多种金属元素组成的金属化合物，所述金属元素选自由4A族元素组成的组和 5A族和选自氢，氮，氯，碳，硼，硫和氧的一种或多种非金属元素，第二种材料被定义为碳质材料的前体。

6. 发明申请

US20110248106A1 PROCESS FOR PRODUCING ALUMINUM TITANATE-BASED CERAMICS 审中-公开
标题翻译：生产基于钛酸铝的陶瓷的工艺
公开(公告)号：US20110248106A1
公开(公告)日：2011-10-13
申请号：US13124079
申请日：2009-11-05
申请人： Hajime Maki , Kousuke Uoe , Kentaro Iwasaki
发明人： Hajime Maki , Kousuke Uoe , Kentaro Iwasaki
IPC分类号： B02C23/00 , C04B35/478 , C03C14/00 , C04B35/622
CPC分类号： C04B35/478 , C04B35/6261 , C04B35/6262 , C04B2235/3206 , C04B2235/3222 , C04B2235/3418 , C04B2235/3427 , C04B2235/3463 , C04B2235/36 , C04B2235/3826 , C04B2235/3852 , C04B2235/3873 , C04B2235/3886 , C04B2235/401 , C04B2235/402 , C04B2235/404 , C04B2235/44 , C04B2235/441 , C04B2235/442 , C04B2235/444 , C04B2235/446 , C04B2235/447 , C04B2235/448 , C04B2235/449 , C04B2235/5409 , C04B2235/5436 , C04B2235/5445 , C04B2235/5481 , C04B2235/656 , C04B2235/81 , C04B2235/9607
摘要： The invention is to provide a novel process for producing aluminum titanate-based ceramics having a low coefficient of thermal expansion. The invention is a process for producing an aluminum titanate-based ceramic comprising firing a starting material mixture containing a titanium source powder, an aluminum source powder and a silicon source powder, wherein the particle diameter corresponding to a cumulative percentage of 50% (D50) on a volume basis of the silicon source powder is not greater than 5 μm. The invention includes the process wherein the starting material mixture further contains a magnesium source powder.
摘要翻译：本发明提供一种制造热膨胀系数低的钛酸铝系陶瓷的新方法。本发明是一种钛酸铝系陶瓷的制造方法，其特征在于，烧成含有钛源粉末，铝源粉末，硅源粉末的原料混合物，其中，相当于累积率为50％（D50）的粒径，硅源粉末的体积基准不大于5μm。本发明包括其中原料混合物还含有镁源粉末的方法。

7. 发明授权

US07674525B2 Process for producing fine α-alumina particles 失效
标题翻译：生产精细α-氧化铝颗粒的方法
公开(公告)号：US07674525B2
公开(公告)日：2010-03-09
申请号：US11374968
申请日：2006-03-15
申请人： Hajime Maki , Yoshiaki Takeuchi , Yuzuru Saitou
发明人： Hajime Maki , Yoshiaki Takeuchi , Yuzuru Saitou
IPC分类号： C01F7/38
CPC分类号： C01F7/02 , B82Y30/00 , C01F7/306 , C01F7/308 , C01F7/36 , C01P2004/04 , C01P2004/52 , C01P2004/64 , C01P2006/12 , C04B35/10 , C04B35/101 , C04B35/111 , C04B2235/3217 , C04B2235/781 , C04B2235/783 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995 , Y10T428/2996 , Y10T428/2998
摘要： The present invention provides a process for producing fine α-alumina particles, which comprises sintering a mixture of α-alumina precursor particles and seed crystal particles, wherein a center particle diameter of the seed crystal particles is 40 nm or less, and a ratio of the number of coarse particles having a particle diameter greater than 100 nm to the number of the total particles is 1% or less.
摘要翻译：本发明提供一种生产精细α-氧化铝颗粒的方法，其包括烧结α-氧化铝前体颗粒和晶种颗粒的混合物，其中晶种颗粒的中心粒径为40nm或更小，粒径大于100nm的粗粒子数与总粒子数之比为1％以下。

8. 发明申请

US20050276745A1 Method for producing an alpha - alumina powder 审中-公开
标题翻译： α-氧化铝粉末的制造方法
公开(公告)号：US20050276745A1
公开(公告)日：2005-12-15
申请号：US11148602
申请日：2005-06-09
申请人： Hajime Maki , Yoshiaki Takeuchi
发明人： Hajime Maki , Yoshiaki Takeuchi
IPC分类号： C01F7/02 , C01F7/22 , C01F7/34 , C01F7/44
CPC分类号： B82Y30/00 , C01F7/34 , C01F7/441 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/80
摘要： A method for producing an α-alumina powder is provided. The method for producing an α-alumina powder comprises steps of (1) preparing a mixture of an aluminum hydrolysate, a seed crystal and water; (2) removing the water from the mixture; and (3) calcining the resultant, wherein the aluminum hydrolysate in the step (1) is produced by hydrolyzing an aqueous aluminum chloride solution under conditions of a pH of 5 or less and a temperature of 60° C. or less.
摘要翻译：提供了一种生产α-氧化铝粉末的方法。制备α-氧化铝粉末的方法包括以下步骤：（1）制备铝水解物，晶种和水的混合物; （2）从混合物中取出水; 和（3）煅烧所得物，其中步骤（1）中的铝水解产物通过在pH5或更低和温度为60℃或更低的条件下水解氯化铝水溶液来制备。

9. 发明申请

US20050201928A1 Method for producing alpha-alumina particle 失效
标题翻译：生产α-氧化铝颗粒的方法
公开(公告)号：US20050201928A1
公开(公告)日：2005-09-15
申请号：US11076836
申请日：2005-03-10
申请人： Hajime Maki , Yoshiaki Takeuchi
发明人： Hajime Maki , Yoshiaki Takeuchi
IPC分类号： C01F7/02 , C01F7/30 , C01F7/44 , C09K3/14
CPC分类号： C09K3/1409 , C01F7/02 , C01F7/308 , C01F7/441 , C01P2002/72 , C01P2002/74 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/22
摘要： The present invention provides a method of producing an α-alumina particle. The method of producing an α-alumina particle comprises steps of: (1) heating a mixture containing an amorphous alumina and a pyrolyzable salt at temperature of not less than the temperature at which the pyrolyzable salt is decomposed, and less than the temperature at which the amorphous alumina transforms to α-alumina; and (2) calcining the resultant under a partial pressure of water vapor of about 600 Pa or less.
摘要翻译：本发明提供了生产α-氧化铝颗粒的方法。制备α-氧化铝颗粒的方法包括以下步骤：（1）在不低于可热分解盐分解的温度的温度下加热含有无定形氧化铝和可热解盐的混合物，并且小于无定形氧化铝转化为α-氧化铝; 和（2）在约600Pa以下的水蒸汽的分压下煅烧所得物。

10. 发明申请

US20110015058A1 ELECTRODE CATALYST AND PROCESS FOR PRODUCING THE ELECTRODE CATALYST 审中-公开
标题翻译：电极催化剂及电极催化剂的制造方法
公开(公告)号：US20110015058A1
公开(公告)日：2011-01-20
申请号：US12933333
申请日：2009-02-19
申请人： Hajime Maki
发明人： Hajime Maki
IPC分类号： H01M4/88 , B01J21/18
CPC分类号： H01M4/9016 , H01M4/8889
摘要： Disclosed are an electrode catalyst and a method for producing an electrode catalyst. The electrode catalyst is composed of: a metal compound comprising one or more metal elements selected from the group consisting of Groups 4A and 5A, and an oxygen atom; and a carbonaceous material covering at least part of the compound, wherein the electrode catalyst has a BET specific surface area of not less than 15 m2/g and not more than 500 m2/g and a carbon coverage of not less than 0.05 and not more than 0.5 as determined by the following equation (1): carbon coverage=carbon content (% by mass)/BET specific surface area (m2/g) (1). The method for producing an electrode catalyst comprises calcining a mixed material comprising a first material provided below and a second material provided below under conditions where the second material can be converted to a carbonaceous material: the first material that is a metal compound composed of one or more metal elements selected from the group consisting of Groups 4A and 5A, and one or more non-metal elements selected from the group consisting of a hydrogen atom, a nitrogen atom, a chlorine atom, a carbon atom, a boron atom and an oxygen atom; the second material that is a carbonaceous material precursor.
摘要翻译：公开了电极催化剂和电极催化剂的制造方法。电极催化剂由以下组成：包含一种或多种选自组4A和5A的金属元素和氧原子的金属化合物; 以及覆盖所述化合物的至少一部分的碳质材料，其中所述电极催化剂的BET比表面积不小于15m 2 / g且不大于500m 2 / g，碳覆盖率不小于0.05而不大于（1）表示：碳含量=碳含量（质量％）/ BET比表面积（m2 / g）（1）。电极催化剂的制造方法包括：在第二材料可以转化成含碳材料的条件下煅烧包含下述第一材料的混合材料和下面提供的第二材料：第一种材料，其是由一种或多种选自组4A和5A的更多的金属元素和选自氢原子，氮原子，氯原子，碳原子，硼原子和氧的一种或多种非金属元素原子; 第二种材料是碳质材料前体。

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