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1. 发明申请

US20090269585A1 BLACK COMPLEX OXIDE PARTICLES 审中-公开
标题翻译：黑色复合氧化物颗粒
公开(公告)号：US20090269585A1
公开(公告)日：2009-10-29
申请号：US11909874
申请日：2006-03-27
申请人： Shoichi Fujiyasu , Koichi Katsuyama , Tomoyuki Hoshino , Masahiro Miwa , Hiroyuki Shimamura
发明人： Shoichi Fujiyasu , Koichi Katsuyama , Tomoyuki Hoshino , Masahiro Miwa , Hiroyuki Shimamura
IPC分类号： B32B1/00 , C09D1/00
CPC分类号： C01G51/006 , C01G51/00 , C01G53/00 , C01G53/006 , C01P2002/32 , C01P2002/52 , C01P2004/20 , C01P2004/62 , C01P2006/11 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C08K3/22 , C09C1/00 , C09C1/0009 , C09D5/24 , C09D7/61 , C09D7/68 , H01B1/08 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993
摘要： The complex oxide particles of the present invention are conductive and exhibit a black color. The particles contain cobalt in an amount of 40 to 65% by mass in terms of the metal element based on the whole particles and at least one kind or two or more kinds of metals selected from copper, nickel and molybdenum. The particles are preferably prepared in the following manner: an aqueous solution of mixed metal salts prepared from water-soluble salts, wherein the aqueous solution contains cobalt and one kind or two or more kinds of metal element selected from copper, nickel and molybdenum, is mixed and neutralized with an alkali hydroxide to obtain a metal hydroxide slurry; the resultant slurry of metal hydroxides is kept at a pH of 10 to 13 and oxidized at a temperature of higher than 40° C. and 60° C. or less to obtain a precursor slurry; the resultant precursor slurry is aged at 80 to 150° C.; and then, after solid-liquid separation, the resultant solid is heated at 400 to 700° C. for longer than 1 hour and 3 hours or less.
摘要翻译：本发明的复合氧化物粒子是导电性的，呈黑色。颗粒含有的金属元素相对于整个颗粒为40〜65质量％的钴和选自铜，镍和钼中的至少一种或两种以上的金属。颗粒优选以如下方式制备：由水溶性盐制备的混合金属盐的水溶液，其中所述水溶液含有钴和选自铜，镍和钼中的一种或两种或更多种金属元素，混合并用碱金属氢氧化物中和，得到金属氢氧化物浆料; 将所得的金属氢氧化物浆液保持在10〜13的pH，在高于40℃，60℃以下的温度下进行氧化，得到前体浆料; 所得前体浆料在80-150℃下老化; 然后在固液分离后，将所得固体在400-700℃下加热1小时以上3小时以下。

2. 发明授权

US07465495B2 Composite black oxide particle, method for producing same, black coating material and black matrix 失效
标题翻译：复合黑色氧化物颗粒，其制造方法，黑色涂料和黑色矩阵
公开(公告)号：US07465495B2
公开(公告)日：2008-12-16
申请号：US10576125
申请日：2004-10-14
申请人： Shoichi Fujiyasu , Tomio Hayashi , Koichi Katsuyama , Hiroyuki Shimamura
发明人： Shoichi Fujiyasu , Tomio Hayashi , Koichi Katsuyama , Hiroyuki Shimamura
IPC分类号： B32B5/16
CPC分类号： C01G51/006 , C01P2002/32 , C01P2004/32 , C01P2004/45 , C01P2004/62 , C01P2004/80 , C01P2004/82 , C01P2004/84 , C01P2006/12 , C01P2006/19 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C09C1/0081 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993
摘要： Disclosed is a composite black oxide particle which is composed of oxide of cobalt, copper and manganese. The copper/cobalt molar ratio is 0.1-0.5, and the manganese/cobalt molar ratio is 0.2-1.0. The composite black oxide particle further contains silicon, and the silicon content to the total oxide particle is 0.1-3 mass %. The surface of the composite black oxide particle is coated with aluminum oxide. The Al content in the surface coating to the entire particle is 0.05-3 mass %.
摘要翻译：公开了由钴，铜和锰的氧化物构成的复合黑氧化物粒子。铜/钴摩尔比为0.1-0.5，锰/钴摩尔比为0.2-1.0。复合黑色氧化物粒子还含有硅，与氧化物总量的硅含量为0.1〜3质量％。复合黑色氧化物颗粒的表面涂覆有氧化铝。表面涂覆到整个颗粒的Al含量为0.05-3质量％。

3. 发明申请

US20070209475A1 Flaky Copper Powder, Method For Producing The Same, And Conductive Paste 审中-公开
标题翻译：片状铜粉，生产方法和导电膏
公开(公告)号：US20070209475A1
公开(公告)日：2007-09-13
申请号：US11587976
申请日：2005-04-26
申请人： Takahiko Sakaue , Katsuhiko Yoshimaru , Yoshinobu Nakamura , Hiroyuki Shimamura
发明人： Takahiko Sakaue , Katsuhiko Yoshimaru , Yoshinobu Nakamura , Hiroyuki Shimamura
IPC分类号： B22F9/24
CPC分类号： B22F1/0014 , B22F1/0044 , B22F1/0055 , B22F1/0062 , B22F9/24 , B22F2001/0033 , H01B1/22 , H05K1/095
摘要： It is an object of the present invention to provide a flaky copper powder composed of fine particles having a sharp distribution particle size, a large crystallite diameter and high oxidation resistance. The flaky copper powder of the present invention contains P and has a crystallite diameter/D1A ratio of 0.01 or more to achieve the object. The method for producing the flaky copper powder comprises four steps: a first step of preparing an aqueous solution containing a copper salt and complexing agent; a second step of adding an alkali hydroxide to the aqueous solution to prepare a first slurry containing cupric oxide; a third step of adding a first reducing agent which can reduce the cupric oxide into cuprous oxide to the first slurry to prepare a second slurry containing cuprous oxide; and a fourth step of adding a second reducing agent which can reduce the cuprous oxide into copper to the second slurry to provide a flaky copper powder, wherein phosphoric acid and its salt are added in at least one of the first to third steps and/or in the second slurry in the fourth step.
摘要翻译：本发明的目的是提供一种由具有尖锐分布粒度，大晶粒直径和高抗氧化性的细颗粒组成的片状铜粉末。本发明的片状铜粉含有P，并且具有0.01以上的微晶直径/ D 1A％比以达到目的。片状铜粉的制造方法包括四个步骤：制备含有铜盐和络合剂的水溶液的第一步骤; 向该水溶液中添加碱性氢氧化物以制备含有氧化铜的第一浆料的第二步骤; 第三步骤，将第一还原剂加入到第一浆料中以制备含有氧化亚铜的第二浆料; 以及第四步骤，添加第二还原剂，其可以将氧化亚铜还原成铜到第二浆料中以提供片状铜粉末，其中在第一至第三步骤中的至少一个中加入磷酸及其盐，和/或在第四步中的第二浆料中。

4. 发明申请

US20090023007A1 HIGHLY CRYSTALLINE SILVER POWDER AND METHOD FOR PRODUCING THE SAME 审中-公开
标题翻译：高晶体银粉及其制造方法
公开(公告)号：US20090023007A1
公开(公告)日：2009-01-22
申请号：US10588970
申请日：2005-02-04
申请人： Taku Fujimoto , Takuya Sasaki , Katsuhiko Yoshimaru , Hiroyuki Shimamura
发明人： Taku Fujimoto , Takuya Sasaki , Katsuhiko Yoshimaru , Hiroyuki Shimamura
IPC分类号： C22C5/06 , B22F9/24
CPC分类号： B22F1/0044 , B22F9/24 , Y10T428/12014
摘要： An object of the present invention is to provide highly crystalline silver powder which is characterized in fine particles, showing high dispersibility, it's particle size distribution is not excessively sharp but relatively broad and crystallites are large; and a method for producing the same. In order to achieve the object, a method for producing highly crystalline silver powder is characterized in that mixing a first aqueous solution and a second aqueous solution, wherein the first aqueous solution contains silver nitrate, a dispersing agent and nitric acid, and the second solution contains ascorbic acid. For dispersing agent, polyvinylpyrrolidone or gelatin is preferred. Highly crystalline silver powder produced by the above-described method is preferred to be a crystallite diameter of 300 Å or more, an average particle diameter D50 in the range from 0.5 μm to 10 μm, and a thermal shrinkage rate for the length direction after heating at 700° C. in the range from −3% to 3%. For ratio D90/D10 of the silver powder is preferred to be in the range from 2.1 to 5.0.
摘要翻译：本发明的目的是提供高分散性的高结晶性银粉末，其特征在于细颗粒，显示出高分散性，其粒度分布不过分锐利但相对宽且微晶大; 及其制造方法。为了达到上述目的，制造高结晶度银粉的方法的特征在于，将第一水溶液和第二水溶液混合，其中第一水溶液含有硝酸银，分散剂和硝酸，第二溶液含有抗坏血酸。对于分散剂，优选聚乙烯吡咯烷酮或明胶。通过上述方法制造的高结晶度银粉末优选为微晶直径为300以上，平均粒径D50为0.5μm〜10μm，加热后的长度方向的热收缩率在700℃，在-3％至3％的范围内。对于银粉的D90 / D10比优选为2.1〜5.0。

5. 发明授权

US07147796B2 Iron oxide particles and method for production thereof 有权
标题翻译：氧化铁粒子及其制造方法
公开(公告)号：US07147796B2
公开(公告)日：2006-12-12
申请号：US10492419
申请日：2002-10-15
申请人： Hiroyuki Shimamura , Masahiro Miwa
发明人： Hiroyuki Shimamura , Masahiro Miwa
IPC分类号： C01G49/00
CPC分类号： C01G49/0018 , C01G49/00 , C01G49/0036 , C01G49/0045 , C01G49/0063 , C01P2006/12 , C01P2006/40 , C01P2006/42 , C09C1/24 , Y10T428/2991
摘要： Iron oxide particles having the surface thereof coated with a layer of a complex iron oxide containing Al and Mg are disclosed. The total content of Al and Mg in the complex iron oxide layer is 0.1 to 2.5% by weight based on the whole iron oxide particles. The Mg content in the complex iron oxide layer is 0.05 to 1% by weight based on the whole iron oxide particles. The Al content in the complex iron oxide layer is 0.05 to 1.7% by weight based on the whole iron oxide particles. The Mg content in the complex iron oxide layer is 20% or more based on the total Mg content of the whole iron oxide particles.
摘要翻译：公开了其表面涂覆有含有Al和Mg的复合氧化铁层的氧化铁颗粒。复合氧化铁层中的Al和Mg的总含量相对于整个氧化铁颗粒为0.1〜2.5重量％。复合氧化铁层中的Mg含量相对于整个氧化铁颗粒为0.05-1重量％。复合氧化铁层中的Al含量相对于整个氧化铁颗粒为0.05〜1.7重量％。复合氧化铁层中的Mg含量相对于整个氧化铁颗粒的总Mg含量为20％以上。

6. 发明授权

US06939390B2 Nickel powder, method for preparing the same and paste for use in making electrodes for electronic parts 失效
标题翻译：镍粉，其制备方法和用于制造电子部件用电极的糊剂
公开(公告)号：US06939390B2
公开(公告)日：2005-09-06
申请号：US10609566
申请日：2003-07-01
申请人： Yoshiharu Toshima , Takao Hayashi , Yasuhide Yamaguchi , Hiroyuki Shimamura
发明人： Yoshiharu Toshima , Takao Hayashi , Yasuhide Yamaguchi , Hiroyuki Shimamura
IPC分类号： B22F9/24 , B22F1/00 , B22F1/02 , H01B1/00 , H01B1/02 , H01B1/22 , H01G4/008
CPC分类号： H01G4/0085 , H01B1/02 , H01B1/22 , Y10T428/29 , Y10T428/2982 , Y10T428/2991
摘要： Nickel powder includes, on the basis of the total number of particles, not less than 10% of particles whose particle size is not less than 1.2 times the average particle size, as determined by the SEM observation; and not less than 10% of particles whose particle size is not more than 0.8 times the average particle size, as determined by the SEM observation. The nickel powder can be prepared by, for instance, precipitating nickel particles from an aqueous solution containing a nickel salt and a hydrazine reducing agent, without forming any hydroxide of nickel as an intermediate. A conductive paste containing the nickel powder can be applied onto an internal or external electrode for electronic parts.
摘要翻译：根据SEM观察，镍粉末基于粒子总数不少于粒径不小于平均粒径的1.2倍的粒子的10％; 和通过SEM观察确定的粒径不大于平均粒径的0.8倍的粒子的不少于10％。镍粉可以通过例如从包含镍盐和肼还原剂的水溶液中沉淀镍颗粒而不形成任何镍的氢氧化物作为中间体来制备。可以将含有镍粉末的导电膏施加到用于电子部件的内部或外部电极上。

7. 发明申请

US20050069705A1 Iron oxide particles and method for production thereof 有权
标题翻译：氧化铁粒子及其制造方法
公开(公告)号：US20050069705A1
公开(公告)日：2005-03-31
申请号：US10492419
申请日：2002-10-15
申请人： Hiroyuki Shimamura , Masahiro Miwa
发明人： Hiroyuki Shimamura , Masahiro Miwa
IPC分类号： C01G49/00 , C09C1/24 , H01F1/00 , B32B15/02 , B32B15/04
CPC分类号： C01G49/0018 , C01G49/00 , C01G49/0036 , C01G49/0045 , C01G49/0063 , C01P2006/12 , C01P2006/40 , C01P2006/42 , C09C1/24 , Y10T428/2991
摘要： Iron oxide particles having the surface thereof coated with a layer of a complex iron oxide containing Al and Mg are disclosed. The total content of Al and Mg in the complex iron oxide layer is 0.1 to 2.5% by weight based on the whole iron oxide particles. The Mg content in the complex iron oxide layer is 0.05 to 1% by weight based on the whole iron oxide particles. The Al content in the complex iron oxide layer is 0.05 to 1.7% by weight based on the whole iron oxide particles. The Mg content in the complex iron oxide layer is 20% or more based on the total Mg content of the whole iron oxide particles.
摘要翻译：公开了其表面涂覆有含有Al和Mg的复合氧化铁层的氧化铁颗粒。复合氧化铁层中的Al和Mg的总含量相对于整个氧化铁颗粒为0.1〜2.5重量％。复合氧化铁层中的Mg含量相对于整个氧化铁颗粒为0.05-1重量％。复合氧化铁层中的Al含量相对于整个氧化铁颗粒为0.05〜1.7重量％。复合氧化铁层中的Mg含量相对于整个氧化铁颗粒的总Mg含量为20％以上。

8. 发明授权

US06391087B1 Copper fine powder and method for preparing the same 失效
标题翻译：铜精细粉及其制备方法
公开(公告)号：US06391087B1
公开(公告)日：2002-05-21
申请号：US09714198
申请日：2000-11-17
申请人： Takao Hayashi , Yoshinobu Nakamura , Hiroyuki Shimamura
发明人： Takao Hayashi , Yoshinobu Nakamura , Hiroyuki Shimamura
IPC分类号： B22F924
CPC分类号： B22F9/24 , B22F1/0011 , H05K1/095
摘要： Copper fine powder has an electrical resistance in its powdery state of not more than 1×10−3 &OHgr;·cm; a BET specific surface area ranging from 0.15 to 0.3 m2/g; a tap density of not less than 4.5 g/cc; a product of the tap density and the particle size, of not less than 13, the particle size being calculated from the specific surface area and; a particle size distribution observed in the microtrack measurement as expressed in terms of D50 and D90 ranging from 4 to 7 &mgr;m and 9 to 11 &mgr;m, respectively; and a weight loss through hydrogen-reduction of not more than 0.30%. The copper fine powder is prepared by adding an alkali hydroxide to an aqueous copper salt solution containing divalent copper ions maintained at not less than 55° C. in an amount of not less than the chemical equivalent to form cupric oxide; then gradually adding a reducing sugar to the reaction system while maintaining the temperature of the system to not less than 55° C. to reduce the cupric oxide to cuprous oxide; followed by filtration and washing, re-suspension to form a slurry, gradual addition of a hydrazine reducing agent to the slurry in the presence of a pH buffer capable of maintaining the pH to 5.5 to 8.5 to thus reduce the cuprous oxide to metal copper.
摘要翻译：铜精细粉末的电阻在其粉末状态不超过1×10-3欧米加•厘米; BET比表面积为0.15〜0.3m2 / g; 振实密度不小于4.5g / cc; 振实密度和粒径的乘积不小于13，粒径由比表面积计算; 在微轨迹测量中观察到的粒度分布如D50和D90所示，分别为4至7μm和9至11μm; 并且通过氢还原的重量减少不大于0.30％。通过向不低于55℃的含有二价铜离子的铜盐水溶液中加入碱金属氢氧化物，其量不小于形成氧化铜的化学当量; 然后逐渐向反应体系中加入还原糖，同时将体系温度保持在不低于55℃，将氧化铜还原为氧化亚铜; 然后过滤和洗涤，再悬浮以形成浆料，在能够将pH维持在5.5至8.5的pH缓冲剂存在下，向该浆液中逐渐加入肼还原剂，从而将氧化亚铜还原成金属铜。

9. 发明授权

US6120576A Method for preparing nickel fine powder 失效
标题翻译：镍微粉制备方法
公开(公告)号：US6120576A
公开(公告)日：2000-09-19
申请号：US112361
申请日：1998-07-09
申请人： Yoshiharu Toshima , Takayuki Araki , Takao Hayashi , Hiroyuki Shimamura
发明人： Yoshiharu Toshima , Takayuki Araki , Takao Hayashi , Hiroyuki Shimamura
IPC分类号： B22F1/00 , B22F9/24
CPC分类号： C22B23/0453 , B22F1/0014 , B22F9/24 , B22F2998/00
摘要： A method for preparing nickel fine powder is herein disclosed, which comprises the steps of mixing an aqueous sodium hydroxide solution comprising, on the basis of the total weight of the sodium hydroxide present in the aqueous solution, 75 to 85% by weight of liquid caustic soda as specified in JIS K 1203 and 25 to 15% by weight, in total, of at least one of sodium hydroxide as specified in JIS K 8576 and solid caustic soda as specified in JIS K 1202, with an aqueous solution of nickel sulfate to form nickel hydroxide, then reducing the resulting nickel hydroxide with hydrazine and recovering nickel fine powder produced. The nickel fine powder prepared by the method has an average particle size of the primary particles ranging from 0.1 to 0.9 .mu.m, a D.sub.90 value of not more than 2.1 .mu.m and a tap density of not less than 3.5 g/cc. The nickel fine powder has a low degree of aggregation, a narrow particle size distribution and a high tap density and therefore, the powder is quite suitably used as a material for producing an internal electrode for a laminated ceramic condenser.
摘要翻译：本文公开了一种制备镍微粉的方法，其包括以下步骤：将氢氧化钠水溶液混合，所述氢氧化钠水溶液基于存在于水溶液中的氢氧化钠的总重量为75至85重量％的液体苛性碱按照JIS K 1203中规定的苏打水，以及JIS-8576中规定的氢氧化钠中的至少一种和JIS K 1202中规定的固体苛性钠中的至少一种的25〜15重量％的硫酸镍水溶液形成氢氧化镍，然后用肼还原所得的氢氧化镍并回收生产的镍细粉。通过该方法制备的镍微粉末，其一次粒子的平均粒径为0.1〜0.9μm，D90值不大于2.1μm，振实密度为3.5g / cc以上。镍微粉末具有低聚集度，窄粒度分布和高振实密度，因此该粉末非常适合用作制备用于层压陶瓷冷凝器的内部电极的材料。

10. 发明申请

US20090270239A1 Black Complex Oxide Particles, Process for Producing the Same, Black Pastes, and Black Matrixes 审中-公开
标题翻译：黑色复合氧化物颗粒，其生产方法，黑色浆料和黑色矩阵
公开(公告)号：US20090270239A1
公开(公告)日：2009-10-29
申请号：US11887557
申请日：2006-03-27
申请人： Koichi Katsuyama , Takashi Nakashima , Hiroyuki Shimamura
发明人： Koichi Katsuyama , Takashi Nakashima , Hiroyuki Shimamura
IPC分类号： C03C8/14 , C04B14/30 , C04B14/34
CPC分类号： C09C1/0009 , C01G51/00 , C01P2002/54 , C01P2004/20 , C01P2004/41 , C01P2004/45 , C01P2004/51 , C01P2004/62 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/42 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C08K3/22 , C08K7/00 , C09C1/00 , C09D7/61 , C09D7/67 , C09D7/68 , C09D7/69 , C09D11/037 , C09D17/007
摘要： The complex oxide particles of the present invention have a black hue, and contains 35 to 70% by weight of cobalt and 5 to 40% by weight of manganese. The molar ratio of cobalt to manganese Co/Mn is 0.5 to 14. The average particle diameter of primary particles is 0.05 to 0.3 μm. The particles have a shape of octahedral form. The particles are produced preferably through wet oxidation. No firing process is performed. The particles contain substantially no metal elements other than cobalt and manganese. The complex oxide particles of the present invention are suitably used as a black pigment for coating material, ink, toner, and rubbers or plastics.
摘要翻译：本发明的复合氧化物粒子具有黑色色调，含有35〜70重量％的钴和5〜40重量％的锰。钴与锰Co / Mn的摩尔比为0.5〜14。一次粒子的平均粒径为0.05〜0.3μm。颗粒具有八面体形状。优选通过湿氧化生产颗粒。不执行点火过程。颗粒基本上不含钴和锰以外的金属元素。本发明的复合氧化物粒子适合用作涂料，油墨，调色剂，橡胶或塑料的黑色颜料。

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