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公开(公告)号：US20120219453A1
公开(公告)日：2012-08-30
申请号：US13468468
申请日：2012-05-10
申请人： Takatoshi Fujino , Kozo Ogi
发明人： Takatoshi Fujino , Kozo Ogi
CPC分类号： H01G4/0085 , B22F1/0011 , B22F9/24 , C01P2006/13 , C22C5/06 , H01B1/22 , H05K1/092 , Y10T428/12014
摘要： After a reducing agent is added to a water reaction system containing silver ions to deposit silver particles by reduction, the silver particles are dried to obtain a silver powder which is heat-treated at a temperature of higher than 100° C., and lower than 400° C. The silver powder thus heat-treated has a maximum coefficient of thermal expansion of not greater than 1.5% at a temperature of 50° C. to 800° C., and has no heating peak when the silver powder is heated from 50° C. to 800° C. The silver powder has an ignition loss of not greater than 1.0% when the silver powder is ignited until the weight of the silver powder is constant at 800° C. The silver powder has a tap density of not less than 2 g/cm3 and a BET specific surface area of not greater than 5 m2/g.
摘要翻译： 将还原剂加入到含有银离子的水反应体系中以还原形成银粒子后，将银粒子干燥，得到银粉末，其在高于100℃的温度下进行热处理，低于 400℃。这样热处理的银粉在50℃至800℃的温度下具有不大于1.5％的最大热膨胀系数，并且当银粉从 50℃至800℃。当银粉被点燃直到银粉的重量恒定在800℃时，银粉的灼烧损失不大于1.0％。银粉的振实密度为 不小于2g / cm 3，BET比表面积不大于5m 2 / g。
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公开(公告)号：US20050279970A1
公开(公告)日：2005-12-22
申请号：US11154784
申请日：2005-06-15
申请人： Kozo Ogi , Takatoshi Fujino
发明人： Kozo Ogi , Takatoshi Fujino
CPC分类号： B22F1/0048 , B22F1/0011 , B22F9/24 , H01B1/22 , H05K1/092
摘要： A spherical silver powder which has a good dispersibility and which is capable of obtaining a good degree of sintering even if it is used for forming a paste to be fired at a low temperature of 600° C. or less to form a conductor. An aqueous solution containing a reducing agent is added to a water reaction system containing silver ions, to deposit silver particles by reduction, to produce a spherical silver powder which has a shrinkage of 5 to 15% at 500° C., a shrinkage of 10 to 20% at 600° C., a mean particle size of not greater than 5 μm, a tap density of not less than 2 g/cm3, and a BET specific surface area of not greater than 5 m2/g.
摘要翻译： 具有良好分散性的球形银粉末，即使用于形成在600℃以下的低温烧成的糊料也能够得到良好的烧结度，形成导体。 将含有还原剂的水溶液加入到含有银离子的水反应体系中，通过还原沉积银粒子，得到在500℃下收缩率为5〜15％的球形银粉末，收缩率为10 至20％，平均粒径不大于5μm，振实密度不小于2g / cm 3，BET比表面积不大于 5m 2 / g。
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公开(公告)号：US20050257643A1
公开(公告)日：2005-11-24
申请号：US11132980
申请日：2005-05-18
申请人： Kozo Ogi , Takatoshi Fujino
发明人： Kozo Ogi , Takatoshi Fujino
CPC分类号： H01B1/22 , B22F1/0011 , B22F1/0044 , B22F1/0048 , B22F9/24 , B22F2998/00 , H05K1/092 , B22F1/0085
摘要： A spherical silver powder has a good dispersibility and is capable of obtaining a good degree of sintering even if used for forming a paste to be fired at a low temperature of 600° C. or less to form a conductor. An aqueous solution containing a reducing agent is added to a water reaction system containing silver ions, to deposit silver particles by reduction, to produce a spherical silver powder wherein a ratio (Dx/BET) of a crystallite diameter Dx (nm) to a BET specific surface area (m2/g) is in the range of from 5 to 200 and which has a crystallite diameter of not greater than 40 nm, a mean particle size of not greater than 5 μm, a tap density of not less than 2 g/cm3, and a BET specific surface area of not greater than 5 m2/g.
摘要翻译： 球形银粉末具有良好的分散性，并且即使用于在600℃以下的低温下形成待烧制的糊料也能够获得良好的烧结度，形成导体。 将含有还原剂的水溶液加入到含有银离子的水反应体系中，通过还原沉积银颗粒，得到球状银粉，其中微晶直径Dx（nm）与BET的比（Dx / BET） 比表面积（m 2 / g / g）在5〜200的范围内，其微晶直径不大于40nm，平均粒径不大于5μm，a 振实密度不小于2g / cm 3，BET比表面积不大于5m 2 / g。
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公开(公告)号：US08282702B2
公开(公告)日：2012-10-09
申请号：US11285140
申请日：2005-11-21
申请人： Takatoshi Fujino , Kozo Ogi
发明人： Takatoshi Fujino , Kozo Ogi
IPC分类号： B22F9/24
CPC分类号： H01G4/0085 , B22F1/0011 , B22F9/24 , C01P2006/13 , C22C5/06 , H01B1/22 , H05K1/092 , Y10T428/12014
摘要： After a reducing agent is added to a water reaction system containing silver ions to deposit silver particles by reduction, the silver particles are dried to obtain a silver powder which is heat-treated at a temperature of higher than 100° C. and lower than 400° C. The silver powder thus heat-treated has a maximum coefficient of thermal expansion of not greater than 1.5% at a temperature of 50° C. to 800° C., and has no heating peak when the silver powder is heated from 50° C. to 800° C. The silver powder has an ignition loss of not greater than 1.0% when the silver powder is ignited until the weight of the silver powder is constant at 800° C. The silver powder has a tap density of not less than 2 g/cm3 and a BET specific surface area of not greater than 5 m2/g.
摘要翻译： 将还原剂加入到含有银离子的水反应体系中以还原形成银粒子后，将银粒子干燥，得到银粉末，其在高于100℃且低于400℃的温度下进行热处理 这样热处理的银粉在50℃至800℃的温度下具有不大于1.5％的最大热膨胀系数，并且当银粉从50加热时没有加热峰 当银粉被点燃直到银粉的重量恒定在800℃时，银粉的灼烧损失不大于1.0％。银粉的振实密度不为 小于2g / cm 3，BET比表面积不大于5m 2 / g。
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公开(公告)号：US20060107791A1
公开(公告)日：2006-05-25
申请号：US11285140
申请日：2005-11-21
申请人： Takatoshi Fujino , Kozo Ogi
发明人： Takatoshi Fujino , Kozo Ogi
CPC分类号： H01G4/0085 , B22F1/0011 , B22F9/24 , C01P2006/13 , C22C5/06 , H01B1/22 , H05K1/092 , Y10T428/12014
摘要： After a reducing agent is added to a water reaction system containing silver ions to deposit silver particles by reduction, the silver particles are dried to obtain a silver powder which is heat-treated at a temperature of higher than 100° C. and lower than 400° C. The silver powder thus heat-treated has a maximum coefficient of thermal expansion of not greater than 1.5% at a temperature of 50° C. to 800° C., and has no heating peak when the silver powder is heated from 50° C. to 800° C. The silver powder has an ignition loss of not greater than 1.0% when the silver powder is ignited until the weight of the silver powder is constant at 800° C. The silver powder has a tap density of not less than 2 g/cm3 and a BET specific surface area of not greater than 5 m2/g.
摘要翻译： 将还原剂加入到含有银离子的水反应体系中以还原形成银粒子后，将银粒子干燥，得到银粉末，其在高于100℃且低于400℃的温度下进行热处理 这样热处理的银粉在50℃至800℃的温度下具有不大于1.5％的最大热膨胀系数，并且当银粉从50加热时没有加热峰 当银粉被点燃直到银粉的重量恒定在800℃时，银粉的灼烧损失不大于1.0％。银粉的振实密度不为 小于2g / cm 3，BET比表面积不大于5m 2 / g。
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公开(公告)号：US08992701B2
公开(公告)日：2015-03-31
申请号：US13468468
申请日：2012-05-10
申请人： Takatoshi Fujino , Kozo Ogi
发明人： Takatoshi Fujino , Kozo Ogi
CPC分类号： H01G4/0085 , B22F1/0011 , B22F9/24 , C01P2006/13 , C22C5/06 , H01B1/22 , H05K1/092 , Y10T428/12014
摘要： After a reducing agent is added to a water reaction system containing silver ions to deposit silver particles by reduction, the silver particles are dried to obtain a silver powder which is heat-treated at a temperature of higher than 100° C. and lower than 400° C. The silver powder thus heat-treated has a maximum coefficient of thermal expansion of not greater than 1.5% at a temperature of 50° C. to 800° C., and has no heating peak when the silver powder is heated from 50° C. to 800° C. The silver powder has an ignition loss of not greater than 1.0% when the silver powder is ignited until the weight of the silver powder is constant at 800° C. The silver powder has a tap density of not less than 2 g/cm3 and a BET specific surface area of not greater than 5 m2/g.
摘要翻译： 将还原剂加入到含有银离子的水反应体系中以还原形成银粒子后，将银粒子干燥，得到银粉末，其在高于100℃且低于400℃的温度下进行热处理 这样热处理的银粉在50℃至800℃的温度下具有不大于1.5％的最大热膨胀系数，并且当银粉从50加热时没有加热峰 当银粉被点燃直到银粉的重量恒定在800℃时，银粉的灼烧损失不大于1.0％。银粉的振实密度不为 小于2g / cm 3，BET比表面积不大于5m 2 / g。
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7.发明申请CHALCOGEN COMPOUND POWDER, CHALCOGEN COMPOUND PASTE, PROCESS FOR PRODUCING CHALCOGEN COMPOUND POWDER, AND PROCESS FOR PRODUCING CHALCOGEN COMPOUND PASTE 审中-公开CHALCOGEN化合物粉末，CHALCOGEN化合物浆料，生产聚氨酯复合粉末的方法，以及生产聚合化合物浆料的方法公开(公告)号：US20120235098A1
公开(公告)日：2012-09-20
申请号：US13501306
申请日：2010-12-07
申请人： Yuichi Ishikawa , Koji Tanoue , Takatoshi Fujino
发明人： Yuichi Ishikawa , Koji Tanoue , Takatoshi Fujino
CPC分类号： C01G15/006 , B82Y30/00 , C01B19/002 , C01G3/006 , C01P2002/50 , C01P2002/72 , C01P2004/03 , C01P2004/52 , C01P2004/64 , C01P2006/40 , C01P2006/80 , H01L21/02568 , H01L21/02601 , H01L21/02628 , H01L31/0322 , Y02E10/541 , Y02P70/521 , Y10T428/2982
摘要： Chalcogen compound powder containing Cu—In—Ga—Se and having an average particle diameter (DSEM) of 80 nm or less and a low content of carbon is obtained by forming a mixed solvent by mixing together at least any one of a mixture of copper salt and indium salt, a composite hydroxide of copper and indium, and a composite oxide of copper and indium, any one of selenium and a selenium compound, and a solvent having a boiling point of 250° C. or less, and heating the mixed solvent to a temperature of 220° C. to 500° C. A thin film containing Cu—In—Ga—Se and having low resistance is obtained by using paste of the chalcogen compound powder.
摘要翻译： 通过将混合溶剂混合在一起混合至少一种铜的混合物，得到含Cu-In-Ga-Se的平均粒径（DSEM）为80nm以下且碳含量低的硫族化合物粉末 盐和铟盐，铜和铟的复合氢氧化物，以及铜和铟的复合氧化物，硒和硒化合物中的任何一种，以及沸点为250℃或更低的溶剂，加热混合 溶剂至220℃至500℃的温度。通过使用硫属化合物粉末的糊料获得含有Cu-In-Ga-Se并且具有低电阻的薄膜。
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8.发明申请CHALCOGEN COMPOUND POWDER, CHALCOGEN COMPOUND PASTE, PROCESS FOR PRODUCING CHALCOGEN COMPOUND POWDER, PROCESS FOR PRODUCING CHALCOGEN COMPOUND PASTE, AND PROCESS FOR PRODUCING THIN FILM OF CHALCOGEN COMPOUND 审中-公开CHALCOGEN化合物粉末，CHALCOGEN化合物浆料，生产聚合化合物粉末的方法，生产聚合物复合材料的方法，以及生产薄膜化合物的方法公开(公告)号：US20120231169A1
公开(公告)日：2012-09-13
申请号：US13502098
申请日：2010-12-07
申请人： Yuichi Ishikawa , Takatoshi Fujino
发明人： Yuichi Ishikawa , Takatoshi Fujino
CPC分类号： C01G3/006 , B82Y30/00 , C01B19/002 , C01G15/006 , C01P2002/72 , C01P2004/04 , C01P2004/62 , C01P2004/64 , C01P2006/80 , Y10T428/2982
摘要： The chalcogen compound has a high content of carbon and thus leads to a high resistance value. Chalcogen compound powder containing Cu—In—(Ga)—Se and having an average particle diameter (D50) of less than 0.5 μm and a carbon content of 0.2% or less by mass in the powder is obtained in a way that metal hydroxide powder having an average primary particle diameter of 0.3 μm or less, and one or more kinds selected from a group consisting of selenium and selenium compounds are heated to 220° C. or more in a reducing gas.
摘要翻译： 硫属化合物具有高的碳含量，因此导致高电阻值。 在粉末中含有Cu-In-（Ga）-Se的平均粒径（D50）小于0.5μm，碳含量为0.2质量％以下的硫属化合物粉末，是以金属氢氧化物粉末 平均一次粒径为0.3μm以下，选自硒和硒化合物的一种以上的物质在还原性气体中加热至220℃以上。
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9.发明授权Method of making ferromagnetic iron alloy powder for magnetic recording medium 有权制备铁磁铁合金粉末用于磁记录介质的方法公开(公告)号：US07166172B2
公开(公告)日：2007-01-23
申请号：US11002669
申请日：2004-12-03
IPC分类号： H01F1/03
CPC分类号： G11B5/70621 , G11B5/70615 , Y10S428/90 , Y10T428/2991
摘要： A ferromagnetic iron alloy powder for a magnetic recording medium is composed of acicular iron-base particles of an average major axis length (X) of not less than 20 nm and not greater than 80 nm and have oxygen content of not less than 15 wt % and coercive force (Hc) of not less than [0.0036 X3−1.1 X2+110 X−1390 (Oe)] (where X is average major axis length expressed in nm). The ferromagnetic iron alloy powder is obtained by reacting metal powder composed of acicular iron-base particles having an average major axis length of not less than 20 nm and not greater than 80 nm with pure water in substantial absence of oxygen to form a metal oxide film on the particle surfaces. Optionally, the particles can be reacted with a weak oxidizing gas by a wet or dry method.
摘要翻译： 用于磁记录介质的铁磁性铁合金粉末由平均长轴长（X）不小于20nm且不大于80nm的针状铁基颗粒组成，氧含量不小于15重量％ 和矫顽力（Hc）不小于[0.0036×3 -1.1×2 +1×10 -1390（Oe）]（其中X是表示的平均长轴长度 nm）。 通过使基本上不含氧的平均长轴长度不小于20nm且不大于80nm的针状铁基颗粒组成的金属粉末与纯水反应形成金属氧化物膜而获得铁磁性铁合金粉末 在颗粒表面。 任选地，颗粒可以通过湿法或干法与弱氧化气体反应。
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公开(公告)号：US07074281B2
公开(公告)日：2006-07-11
申请号：US10378933
申请日：2003-03-05
IPC分类号： H01F1/04
CPC分类号： G11B5/70621 , Y10S428/90 , Y10T428/2991
摘要： A magnetic powder for magnetic recording is provided that has improved properties suitable for a magnetic recording medium used with a high-sensitivity read head utilizing an MR device. The magnetic powder is composed of iron-base acicular particles containing Co, Al, R (rare earth elements, including Y) and oxygen within the ranges of Co/Fe=10–50 at. %, dissolved Al/(Fe+Co)=5–50 at. %, R/(Fe+Co)=2–25 at. % and oxygen=not greater than 25 wt %; and the acicular particles have an average major axis length of 25–80 nm and a saturated magnetization σs of 10–130 emu/g,
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