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1. 发明授权

US07094289B2 Method for manufacturing highly-crystallized oxide powder 有权
标题翻译：高结晶度氧化物粉末的制造方法
公开(公告)号：US07094289B2
公开(公告)日：2006-08-22
申请号：US10630394
申请日：2003-07-30
申请人： Yuji Akimoto , Masami Nakamura , Kazuro Nagashima
发明人： Yuji Akimoto , Masami Nakamura , Kazuro Nagashima
IPC分类号： C30B25/06
CPC分类号： C09K11/7767 , C01B13/18 , C01B13/185 , C01B13/322 , C01F17/0043 , C01G1/02 , C01G9/03 , C01G23/006 , C01G23/0532 , C01G23/08 , C01G49/0036 , C01G51/04 , C01P2002/04 , C01P2002/52 , C01P2002/84 , C01P2004/32 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C09K11/7734 , C30B11/00 , C30B29/16
摘要： A method for manufacturing a highly-crystallized oxide powder, wherein an oxide powder is produced by ejecting a starting material powder containing at least one metal element and/or semimetal element, which will become a constituent component of the oxide, into a reaction vessel together with a carrier gas through a nozzle; and heating the starting material powder at a temperature higher than the decomposition temperature or reaction temperature thereof and not lower than (Tm/2)° C., where Tm° C. stands for a melting point of the oxide, in a state in which the starting material powder is dispersed in a gas phase at a concentration of not higher than 10 g/L. In the above method, the starting material powder may be mixed and dispersed in the carrier gas by using a dispersing machine prior to being ejected into the reaction vessel through a nozzle. The resultant oxide powder has a high crystallinity, a high dispersibility, and a uniform particle size, without introducing impurities thereinto, by a low-cost and simple production equipment.
摘要翻译：一种制造高结晶度氧化物粉末的方法，其中氧化物粉末通过将含有至少一种将成为氧化物的构成成分的金属元素和/或半金属元素的原料粉末喷射到反应容器中而制备载气通过喷嘴; 在高于分解温度或其反应温度的温度下加热原料粉末，并且不低于（Tm / 2）℃，其中Tm℃代表氧化物的熔点，其中，原料粉末以不高于10g / L的浓度分散在气相中。在上述方法中，原料粉末可以在通过喷嘴喷射到反应容器中之前通过使用分散机混合并分散在载气中。通过低成本且简单的生产设备，所得到的氧化物粉末具有高结晶度，高分散性和均匀的粒度，而不引入杂质。

2. 发明申请

US20130059161A1 METAL POWDER PRODUCTION METHOD, METAL POWDER PRODUCED THEREBY, CONDUCTIVE PASTE AND MULTILAYER CERAMIC ELECTRONIC COMPONENT 有权
标题翻译：金属粉生产方法，生产的金属粉，导电胶和多层陶瓷电子元件
公开(公告)号：US20130059161A1
公开(公告)日：2013-03-07
申请号：US13600317
申请日：2012-08-31
申请人： Yuji AKIMOTO , Kazuro Nagashima , Hidenori Ieda , Masayuki Maekawa
发明人： Yuji AKIMOTO , Kazuro Nagashima , Hidenori Ieda , Masayuki Maekawa
IPC分类号： B22F9/20 , B32B15/04 , B32B18/00 , B22F1/00
CPC分类号： B22F9/30 , B22F1/0014 , B22F2998/00 , H01B1/22 , B22F1/0018 , B22F1/0044
摘要： Fine, highly-crystallized metal powder is produced at low cost and high efficiency by a method involving: ejecting raw material powder composed of one or more kinds of thermally decomposable metal compound powders into a reaction vessel through a nozzle together with a carrier gas and producing a metal powder by heating the raw material powder at a temperature T2 which is higher than the decomposition temperature of the raw material powder and not lower than (Tm−200)° C. where Tm is the melting point (° C.) of the metal to be produced, while allowing the raw material powder to pass through the reaction vessel in a state where the raw material powder is dispersed in a gas phase at a concentration of 10 g/liter or less, wherein an ambient temperature T1 of a nozzle opening part is set to a temperature of 400° C. or higher and lower than (Tm−200)° C.
摘要翻译：通过以下方法，低成本，高效率地制造细微，高结晶度的金属粉末：将由一种或多种可热分解的金属化合物粉末组成的原料粉末与载气一起通过喷嘴喷射到反应容器中，并产生通过在高于原料粉末的分解温度的温度T2下加热原料粉末而不低于（Tm-200）℃的金属粉末，其中Tm是熔点（℃）的Tm 金属，同时允许原料粉末以原料粉末分散在浓度为10g / l或更低的气相中的状态通过反应容器，其中喷嘴的环境温度T1 开口部设定为400℃以上且低于（Tm-200）℃的温度。

3. 发明申请

US20120114945A1 NICKEL POWDER, METHOD FOR MANUFACTURING SAME, CONDUCTOR PASTE, AND MULTILAYER CERAMIC ELECTRONIC COMPONENT USING SAME 有权
标题翻译：镍粉，其制造方法，导电胶和多层陶瓷电子元件
公开(公告)号：US20120114945A1
公开(公告)日：2012-05-10
申请号：US13351028
申请日：2012-01-16
申请人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Hitomi Yanagi
发明人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Hitomi Yanagi
IPC分类号： H01B1/02 , C23C8/10
CPC分类号： B22F1/0088 , B22F2998/00 , B22F2998/10 , B22F2999/00 , H01G4/008 , H01G4/30 , B22F1/02 , B22F9/30 , B22F2201/50
摘要： A nickel powder with an average particle size of 0.05 to 1.0 μm, which is composed of nickel particles having an oxidized surface layer and containing sulfur, wherein the sulfur content with respect to the total weight of the powder is 100 to 2000 ppm, and the intensity of a peak identified to sulfur bonded to nickel in surface analysis by ESCA of the nickel particles varies in a direction toward the center from the surface of the particles, and this intensity has its maximum at a location deeper than 3 nm from the particle outermost surface. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.
摘要翻译：平均粒径为0.05〜1.0μm的镍粉由氧化表面层和含硫的镍粒子组成，其中相对于粉末总重量的硫含量为100〜2000ppm，通过镍颗粒的ESCA进行的表面分析中鉴定为硫结合的峰的强度在从颗粒表面朝向中心的方向上变化，并且该强度在距离颗粒最外侧的3nm以下的位置处具有最大值表面。该镍粉是通过将含硫的镍粉末分散在非氧化性气体气氛中与高温下的氧化性气体接触来制造的。

4. 发明申请

US20070084309A1 Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste 有权
标题翻译：制造含铼合金粉末，含铼合金粉末和导体糊料的方法
公开(公告)号：US20070084309A1
公开(公告)日：2007-04-19
申请号：US11581656
申请日：2006-10-16
申请人： Yuji Akimoto , Kazuro Nagashima , Masayuki Maekawa , Hidenori Ieda , Yasuhiro Kamahori
发明人： Yuji Akimoto , Kazuro Nagashima , Masayuki Maekawa , Hidenori Ieda , Yasuhiro Kamahori
IPC分类号： B22F9/22
CPC分类号： B22F9/28 , B22F2998/10 , C22C1/04 , B22F9/30 , B22F9/24 , B22F1/025 , B22F9/004
摘要： Metal particles that can be alloyed with rhenium are dispersed as a main component in a gas phase, a rhenium oxide vapor is made to be present around these particles, the rhenium oxide is reduced, and the rhenium precipitated on the surface of the main component metal particles as a result of this reduction is diffused under a high temperature into the main component metal particles, which gives a rhenium-containing alloy powder including the main component metal and rhenium. The powder thus obtained preferably contains 0.01 to 50 wt % rhenium, has an average particle size of 0.01 to 10 μm, and is made into a conductor paste by being uniformly mixed and dispersed in an organic vehicle along with other additives as needed.
摘要翻译：可以与铼合金化的金属颗粒作为主要成分分散在气相中，使氧化铼蒸汽存在于这些颗粒周围，氧化铼被还原，铼沉积在主要成分金属的表面上作为这种还原的结果的颗粒在高温下扩散到主要组分金属颗粒中，其产生包含主要组分金属和铼的含铼合金粉末。由此获得的粉末优选含有0.01〜50重量％的铼，平均粒径为0.01〜10微米，并根据需要与其他添加剂一起均匀混合分散在有机载体中而制成导体糊料。

5. 发明授权

US06403218B1 Nickel composite particle and production process therefor 有权
标题翻译：镍复合颗粒及其生产工艺
公开(公告)号：US06403218B1
公开(公告)日：2002-06-11
申请号：US09398362
申请日：1999-09-17
申请人： Yuji Akimoto , Kazuro Nagashima , Hiroshi Yoshida , Yiyi Ma
发明人： Yuji Akimoto , Kazuro Nagashima , Hiroshi Yoshida , Yiyi Ma
IPC分类号： B32B1500
CPC分类号： H01G4/0085 , B22F1/02 , B22F9/026 , B22F9/30 , H01B1/02 , H01B1/08 , H05K1/092 , Y10T428/2991 , Y10T428/2993
摘要： Nickel composite particles having a layer of a nickel-containing spinel on at least a part of the surface of nickel particles, or nickel composite particles having an oxide layer of a metal other than nickel on at least a part of the surface of nickel particles and a layer of a nickel-containing spinel at an interface between the nickel particles and the metal oxide layer. The nickel composite particles are produced by forming fine liquid droplets from a solution containing (a) at least one thermally decomposable nickel compound and (b) at least one thermally decomposable metal compound capable of forming a spinel together with nickel; and heating the liquid droplets at a temperature higher than the decomposition temperatures of compounds (a) and (b) to form nickel particles and simultaneously deposit a nickel-containing spinel layer, or further, a metal oxide layer on the spinel layer. The composite particles are especially useful for the preparation of a conductor paste used in an internal conductor layer of a ceramic multilayer electronic part.
摘要翻译：在镍粒子表面的至少一部分表面上具有含镍的尖晶石层的镍复合粒子，或在镍粒子的至少一部分表面上具有镍以外的金属氧化物层的镍复合粒子，以及在镍颗粒和金属氧化物层之间的界面处的含镍尖晶石层。通过从含有（a）至少一种可热分解的镍化合物的溶液和（b）至少一种能够与镍形成尖晶石的至少一种可热分解的金属化合物形成细小的液滴来生产镍复合颗粒; 并在比化合物（a）和（b）的分解温度高的温度下加热液滴以形成镍颗粒，同时在镍尖晶石层上沉积含镍的尖晶石层或另外的金属氧化物层。复合颗粒特别可用于制备用于陶瓷多层电子部件的内部导体层的导体糊料。

6. 发明授权

US08128725B2 Nickel powder, method for manufacturing same, conductor paste, and multilayer ceramic electronic component using same 有权
标题翻译：镍粉，其制造方法，导体糊和使用其的多层陶瓷电子部件
公开(公告)号：US08128725B2
公开(公告)日：2012-03-06
申请号：US12074127
申请日：2008-02-29
申请人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Hitomi Yanagi
发明人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Hitomi Yanagi
IPC分类号： C22C19/00 , C23C8/10 , C22C1/04
CPC分类号： B22F1/0088 , B22F2998/00 , B22F2998/10 , B22F2999/00 , H01G4/008 , H01G4/30 , B22F1/02 , B22F9/30 , B22F2201/50
摘要： A nickel powder with an average particle size of 0.05 to 1.0 μm, which is composed of nickel particles having an oxidized surface layer and containing sulfur, wherein the sulfur content with respect to the total weight of the powder is 100 to 2000 ppm, and the intensity of a peak identified to sulfur bonded to nickel in surface analysis by ESCA of the nickel particles varies in a direction toward the center from the surface of the particles, and this intensity has its maximum at a location deeper than 3 nm from the particle outermost surface. This nickel powder is manufactured by bringing a nickel powder containing sulfur and dispersed in a non-oxidizing gas atmosphere into contact with an oxidizing gas at a high temperature.
摘要翻译：平均粒径为0.05〜1.0μm的镍粉由氧化表面层和含硫的镍粒子组成，其中相对于粉末总重量的硫含量为100〜2000ppm，通过镍颗粒的ESCA进行的表面分析中鉴定为硫结合的峰的强度在从颗粒表面朝向中心的方向上变化，并且该强度在距离颗粒最外侧的3nm以下的位置处具有最大值表面。该镍粉是通过将含硫的镍粉末分散在非氧化性气体气氛中与高温下的氧化性气体接触来制造的。

7. 发明授权

US07744779B2 Nickel-rhenium alloy powder and conductor paste containing the same 有权
标题翻译：镍铼合金粉末和含有其的导体糊料
公开(公告)号：US07744779B2
公开(公告)日：2010-06-29
申请号：US12310745
申请日：2007-09-25
申请人： Yuji Akimoto , Kazuro Nagashima , Tetsuya Kimura , Yasuhiro Kamahori
发明人： Yuji Akimoto , Kazuro Nagashima , Tetsuya Kimura , Yasuhiro Kamahori
IPC分类号： H01B1/22 , C22C19/03 , B22F1/00 , H01G4/12 , H01G4/30
CPC分类号： H01G4/008 , B22F1/02 , B22F2998/00 , H01B1/22 , H01F27/292 , H01G4/0085 , H01G4/30 , H01L23/49883 , H01L2924/0002 , Y10T428/2991 , B22F1/0018 , B22F9/22 , B22F9/28 , C22C1/0433 , H01L2924/00
摘要： A nickel-rhenium alloy powder comprising nickel as a main component, 0.1 to 10% by weight of rhenium, and having an average particle size of 0.05 to 1.0 μm is provided. The nickel-rhenium alloy powder has a surface oxide film containing a nickel oxide and a rhenium oxide, and the amount of oxygen in the surface oxide film is 0.1 to 3.0% by weight relative to the total weight of the powder. The nickel-rhenium alloy powder is suitable, in particular, for forming internal electrode layers of a multilayer ceramic electronic component. The obtained powder is homogeneously mixed and dispersed in an organic vehicle, together with other additives as needed, to prepare a conductor paste. The surface oxide film allows bringing the sintering shrinkage behavior of electrode layers and ceramic layers closer to each other when the nickel-rhenium alloy powder is used, in particular, for forming internal electrodes of a multilayer ceramic electronic component. Moreover, there occurs no electrode spheroidizing caused by oversintering. and thus thinner, dense internal electrodes having excellent continuity can be formed.
摘要翻译：提供以镍为主成分的镍铼合金粉末，0.1〜10重量％的铼，平均粒径为0.05〜1.0μm。镍铼合金粉末具有包含氧化镍和氧化铼的表面氧化膜，表面氧化膜中的氧的量相对于粉末的总重量为0.1〜3.0重量％。镍铼合金粉末特别适用于形成多层陶瓷电子部件的内部电极层。将获得的粉末与有机载体一起，根据需要与其它添加剂均匀混合并分散，制备导体糊料。当使用镍铼合金粉末时，表面氧化膜允许电极层和陶瓷层的烧结收缩行为彼此更接近，特别是用于形成多层陶瓷电子部件的内部电极。此外，由于过度烧结导致电极球化不发生。因此可以形成具有优异连续性的较薄的致密内部电极。

8. 发明申请

US20100021735A1 Nickel-rhenium alloy powder and conductor paste containing the same 有权
标题翻译：镍铼合金粉末和含有其的导体糊料
公开(公告)号：US20100021735A1
公开(公告)日：2010-01-28
申请号：US12310745
申请日：2007-09-25
申请人： Yuji Akimoto , Kazuro Nagashima , Tetsuya Kimura , Yasuhiro Kamahori
发明人： Yuji Akimoto , Kazuro Nagashima , Tetsuya Kimura , Yasuhiro Kamahori
IPC分类号： B32B15/02
CPC分类号： H01G4/008 , B22F1/02 , B22F2998/00 , H01B1/22 , H01F27/292 , H01G4/0085 , H01G4/30 , H01L23/49883 , H01L2924/0002 , Y10T428/2991 , B22F1/0018 , B22F9/22 , B22F9/28 , C22C1/0433 , H01L2924/00
摘要： A nickel-rhenium alloy powder comprising nickel as a main component, 0.1 to 10% by weight of rhenium, and having an average particle size of 0.05 to 1.0 μm is provided. The nickel-rhenium alloy powder has a surface oxide film containing a nickel oxide and a rhenium oxide, and the amount of oxygen in the surface oxide film is 0.1 to 3.0% by weight relative to the total weight of the powder. The nickel-rhenium alloy powder is suitable, in particular, for forming internal electrode layers of a multilayer ceramic electronic component. The obtained powder is homogeneously mixed and dispersed in an organic vehicle, together with other additives as needed, to prepare a conductor paste. The surface oxide film allows bringing the sintering shrinkage behavior of electrode layers and ceramic layers closer to each other when the nickel-rhenium alloy powder is used, in particular, for forming internal electrodes of a multilayer ceramic electronic component. Moreover, there occurs no electrode spheroidizing caused by oversintering. and thus thinner, dense internal electrodes having excellent continuity can be formed.
摘要翻译：提供以镍为主成分的镍铼合金粉末，0.1〜10重量％的铼，平均粒径为0.05〜1.0μm。镍铼合金粉末具有包含氧化镍和氧化铼的表面氧化膜，表面氧化膜中的氧的量相对于粉末的总重量为0.1〜3.0重量％。镍铼合金粉末特别适用于形成多层陶瓷电子部件的内部电极层。将获得的粉末与有机载体一起，根据需要与其它添加剂均匀混合并分散，制备导体糊料。当使用镍铼合金粉末时，表面氧化膜允许电极层和陶瓷层的烧结收缩行为彼此更接近，特别是用于形成多层陶瓷电子部件的内部电极。此外，由于过度烧结导致电极球化不发生。因此可以形成具有优异连续性的较薄的致密内部电极。

9. 发明授权

US07066980B2 Method for manufacturing metal powder 有权
标题翻译：金属粉末制造方法
公开(公告)号：US07066980B2
公开(公告)日：2006-06-27
申请号：US10657569
申请日：2003-09-08
申请人： Yuji Akimoto , Shinichi Ono , Kazuro Nagashima , Masayuki Maekawa , Hidenori Ieda
发明人： Yuji Akimoto , Shinichi Ono , Kazuro Nagashima , Masayuki Maekawa , Hidenori Ieda
IPC分类号： B22F9/20
CPC分类号： B22F9/30 , B22F1/0044 , H01B1/22 , H05K1/092
摘要： A method in which a metal powder is produced by ejecting a thermally decomposable metal compound powder into a reaction vessel through a nozzle together with a carrier gas under the condition V/S>600, where V is the flow rate of the carrier gas per unit time (liter/min), and S is the cross-sectional area of the nozzle opening part (cm2), and heating this metal powder at a temperature which is higher than the decomposition temperature of the metal compound powder and not lower than (Tm−200)° C., where Tm is the melting point of the metal, in a state where the metal compound powder is dispersed in the gas phase at a concentration of 10 g/liter or less. The method provides a fine, spherical, highly-crystallized metal powder which has a high purity, high density, high dispersibility and extremely uniform particle size, at low cost and using a simple process.
摘要翻译：在V / S> 600的条件下，通过喷嘴与载气一起喷射可分解的金属化合物粉末到反应容器中而制备金属粉末的方法，其中V是每单位载气的流速时间（升/分钟），S是喷嘴开口部的横截面面积（cm 2），在比金属的分解温度高的温度下加热该金属粉末复合粉末，并且在金属化合物粉末以浓度为10g / l以下分散在气相中的状态下，不低于（Tm-200）℃，其中Tm是金属的熔点。该方法以低成本和简单的方法提供了具有高纯度，高密度，高分散性和极均匀粒度的精细，球形，高结晶度的金属粉末。

10. 发明授权

US06793842B2 Single-crystal ferrite fine powder 有权
标题翻译：单晶铁素体细粉
公开(公告)号：US06793842B2
公开(公告)日：2004-09-21
申请号：US09900769
申请日：2001-07-06
申请人： Yuji Akimoto , Kazuro Nagashima , Masahiro Ikemoto , Minoru Takaya , Yoshiaki Akachi , Hisashi Kobuke
发明人： Yuji Akimoto , Kazuro Nagashima , Masahiro Ikemoto , Minoru Takaya , Yoshiaki Akachi , Hisashi Kobuke
IPC分类号： C01G4902
CPC分类号： H01F1/36
摘要： A ferrite fine powder having a mean particle size of 0.1 to 30 &mgr;m and made of spherical single-crystal particles. The ferrite fine powder has superior physical properties and excellent magnetic properties desirable for use as a raw material for a dust core of coils, transformers, etc. The powder is prepared by forming a solution or suspension containing a compound or compounds of at least one of the metals forming the ferrite into fine droplets, and thermally decomposing the droplets at elevated temperatures.
摘要翻译：平均粒径为0.1〜30μm，由球状单晶粒子构成的铁氧体细粉末。铁氧体细粉末具有优异的物理性能和优异的磁性能，用作线圈，变压器等的粉尘芯的原料。粉末通过形成含有化合物的溶液或悬浮液或至少一种形成铁素体的金属成细小液滴，并在升高的温度下热分解液滴。

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