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1. 发明授权

US07704297B2 Nickel powder manufacturing method 有权
标题翻译：镍粉制造方法
公开(公告)号：US07704297B2
公开(公告)日：2010-04-27
申请号：US11732239
申请日：2007-04-03
申请人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Tetsuya Kimura
发明人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Tetsuya Kimura
IPC分类号： B22F9/24
CPC分类号： B22F9/30 , B22F2999/00 , B22F9/24
摘要： A melt of nickel nitrate hydrate is introduced as droplets or liquid flow into a heated reaction vessel and thermally decomposed in a gas phase at a temperature of 1200° C. or more and at an oxygen partial pressure equal to or below the equilibrium oxygen pressure of nickel-nickel oxide at that temperature to manufacture a highly crystalline fine nickel powder with an extremely narrow particle size distribution. The oxygen partial pressure during the thermal decomposition is preferably 10−2 Pa or less, and a metal other than nickel, a semimetal and/or a compound of these may be added to the nickel nitrate hydrate melt to manufacture a highly crystalline nickel alloy powder or highly crystalline nickel composite powder. The resultant powder is suited in particular to thick film pastes such as conductor pastes for manufacturing ceramic multilayer electronic components.
摘要翻译：将硝酸镍水合物的熔体作为液滴或液体流引入加热的反应容器中，并在气相中在1200℃或更高的温度和在等于或低于平衡氧气压力的氧分压下热分解镍镍氧化物，以制造具有非常窄的粒度分布的高度结晶的细镍粉。热分解时的氧分压优选为10 -2 Pa以下，并且可以向硝酸镍水合物熔体中添加除镍以外的金属，这些的半金属和/或其化合物以制造高度结晶的镍合金粉末或高度结晶的镍复合粉末。所得到的粉末特别适合于用于制造陶瓷多层电子部件的导电膏等厚膜糊。

2. 发明申请

US20070251351A1 Nickel powder manufacturing method 有权
标题翻译：镍粉制造方法
公开(公告)号：US20070251351A1
公开(公告)日：2007-11-01
申请号：US11732239
申请日：2007-04-03
申请人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Tetsuya Kimura
发明人： Yuji Akimoto , Kazuro Nagashima , Hidenori Ieda , Tetsuya Kimura
IPC分类号： B22F9/00 , C22B23/00
CPC分类号： B22F9/30 , B22F2999/00 , B22F9/24
摘要： A melt of nickel nitrate hydrate is introduced as droplets or liquid flow into a heated reaction vessel and thermally decomposed in a gas phase at a temperature of 1200° C. or more and at an oxygen partial pressure equal to or below the equilibrium oxygen pressure of nickel-nickel oxide at that temperature to manufacture a highly crystalline fine nickel powder with an extremely narrow particle size distribution. The oxygen partial pressure during the thermal decomposition is preferably 10−2 Pa or less, and a metal other than nickel, a semimetal and/or a compound of these may be added to the nickel nitrate hydrate melt to manufacture a highly crystalline nickel alloy powder or highly crystalline nickel composite powder. The resultant powder is suited in particular to thick film pastes such as conductor pastes for manufacturing ceramic multilayer electronic components.
摘要翻译：将硝酸镍水合物的熔体作为液滴或液体流引入加热的反应容器中，并在气相中在1200℃或更高的温度和在等于或低于平衡氧气压力的氧分压下热分解镍镍氧化物，以制造具有非常窄的粒度分布的高度结晶的细镍粉。热分解期间的氧分压优选为10〜PaPa以下，并且可以将镍以外的金属，这些的半金属和/或其化合物加入到硝酸镍水合物熔体中至制造高度结晶的镍合金粉末或高度结晶的镍复合粉末。所得到的粉末特别适合于用于制造陶瓷多层电子部件的导电膏等厚膜糊。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明授权

US08734562B2 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：US08734562B2
公开(公告)日：2014-05-27
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： 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。

9. 发明授权

US07503959B2 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：US07503959B2
公开(公告)日：2009-03-17
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： B22F9/28
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。

10. 发明授权

US09162288B2 Metal powder production method, metal powder produced thereby, conductive paste and multilayer ceramic electronic component 有权
标题翻译：金属粉末生产方法，由此生产的金属粉末，导电浆和多层陶瓷电子部件
公开(公告)号：US09162288B2
公开(公告)日：2015-10-20
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： B22F9/30 , H01B1/22 , 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，并且不低于（Tm-200℃）℃的Tm（Tm-200℃），其中Tm是熔点（℃）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℃以上的温度（Tm-200℃）以下。

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