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1. 发明授权

EP1170757B1 Single-crystal ferrite fine powder 有权
标题翻译：铁素体单晶的细粉末
公开(公告)号：EP1170757B1
公开(公告)日：2004-09-29
申请号：EP01115630.4
申请日：2001-07-03
申请人： SHOEI CHEMICAL INC. , TDK Corporation
发明人： Akimoto, Yuji , Nagashima, Kazuro , Ikemoto, Masahiro , Takaya, Minoru , Akachi, Yoshiaki , Kobuke, Hisashi
IPC分类号： H01F1/36
CPC分类号： H01F1/36

2. 发明公开

EP1170757A3 Single-crystal ferrite fine powder 有权
标题翻译：铁素体单晶的细粉末
公开(公告)号：EP1170757A3
公开(公告)日：2003-04-23
申请号：EP01115630.4
申请日：2001-07-03
申请人： SHOEI CHEMICAL INC. , TDK Corporation
发明人： Akimoto, Yuji , Nagashima, Kazuro , Ikemoto, Masahiro , Takaya, Minoru , Akachi, Yoshiaki , Kobuke, Hisashi
IPC分类号： H01F1/36
CPC分类号： H01F1/36
摘要： A ferrite fine powder having a mean particle size of 0.1 to 30 µm and consisting of spherical single-crystal particles. The ferrite fine powder has superior physical properties and excellent magnetic properties desirable for the 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 composing ferrite into fine droplets, and thermally decomposing the droplets at elevated temperatures.

3. 发明公开

EP0834370A1 Coated metal powder and process for preparing the same by decomposition 失效
标题翻译： Beschichtetes Metallpulver和Verfahren seiner Herstellung durch Zersetzung
公开(公告)号：EP0834370A1
公开(公告)日：1998-04-08
申请号：EP97116642.6
申请日：1997-09-24
申请人： SHOEI CHEMICAL INC.
发明人： Asada, Eiichi , Akimoto, Yuji , Shimizu, Fumiyuki , Nagashima, Kazuro
IPC分类号： B22F1/02 , B22F9/30 , H01C17/065
CPC分类号： H01G4/0085 , B22F1/02 , B22F1/025 , B22F9/30 , B22F2998/00 , B22F2999/00 , C23D5/02 , H01C17/06513 , H01C17/06533 , H05K1/092 , B22F2207/07 , B22F9/026 , B22F2203/05
摘要： A metal powder having a vitreous thin layer on at least a part of the surface thereof wherein the amount of the vitreous thin layer is preferably 0.01 to 50% by weight based on the metal powder excluding the vitreous thin layer. The metal powder is prepared a process comprising the steps of: bringing a solution comprising a heat-decomposable metal compound to fine droplets; and heating the droplets to a temperature above the decomposition temperature of the metal compound, wherein a precursor of an oxide, heat-decomposable to produce a vitreous material which, together with the metal, does not form a solid solution, is added to the solution and the vitreous material is deposited, upon the heating, in the vicinity of the surface of the metal powder. The powder is useful for the preparation of a thick film paste used in a multilayer ceramic electronic component or substrate, since it has an excellent oxidation resistance during storage, in a conductor paste, and during firing of the paste.
摘要翻译：在其表面的至少一部分上，具有复合氧化物层的镍粉末，其包含镧和镍，并且任选地含有铬的氧化物。通过包括以下步骤的方法制备所述镍粉末：使包含至少一种可热分解的镍化合物和至少一种可热分解的镧化合物的溶液和任选地含有至少一种可热分解的铬化合物的溶液到细微的液滴中; 并在高于这些化合物的分解温度的温度下加热液滴以制备镍粉，同时沉积包含镧和镍的复合氧化物层，并且当存在氧化铬时，沉积在表面附近的镍粉。镍粉适用于与多层成分等未烧成的陶瓷生片共烧的导体糊料，因为粉末的烧结开始有效地延迟到陶瓷生片的烧结开始温度附近，从而防止由于过度烧结引起的问题。

4. 发明公开

EP1777024A3 Method for manufacturing rhenium-containing alloy powder, rhenium-containing alloy powder, and conductor paste 有权
标题翻译： Verfahren zur Herstellung eines rheniumhaltigen Legierungspulvers，rheniumhaltiges Legierungspulver，undleitfähigePaste
公开(公告)号：EP1777024A3
公开(公告)日：2009-01-14
申请号：EP06122456.4
申请日：2006-10-17
申请人： SHOEI CHEMICAL INC.
发明人： Akimoto, Yuji , Nagashima, Kazuro , Maekawa, Masayuki , Ieda, Hidenori , Kamahori, Yasuhiro
IPC分类号： B22F1/02 , C22C1/04
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，铼沉淀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0.01〜10μm，通过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. 发明公开

EP1849540A1 Nickel powder manufacturing method 有权
标题翻译： Verfahren zur Herstellung von Nickelpulver
公开(公告)号：EP1849540A1
公开(公告)日：2007-10-31
申请号：EP07106095.8
申请日：2007-04-13
申请人： SHOEI CHEMICAL INC.
发明人： Akimoto, Yuji , Nagashima, Kazuro , Ieda, Hidenori , Kimura, Tetsuya
IPC分类号： B22F9/30
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℃或更高的温度下并且在等于或低于镍的平衡氧气压力的氧分压下热分解 - 在该温度下的氧化镍，以制造具有非常窄的粒度分布的高度结晶的细镍粉末。热分解期间的氧分压优选为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用于制造陶瓷多层电子部件的导电膏等厚膜糊。

6. 发明公开

EP1800773A1 Nickel powder, conductive paste, and multilayer electronic component using same 有权
标题翻译：镍粉，导电膏和多层电子部件，使得
公开(公告)号：EP1800773A1
公开(公告)日：2007-06-27
申请号：EP06024420.9
申请日：2006-11-24
申请人： SHOEI CHEMICAL INC.
发明人： Akimoto, Yuji , Nagashima, Kazuro , Ieda, Hidenori
IPC分类号： B22F1/00 , B22F9/30 , H01B1/00 , H01B5/00 , H01B13/00 , H01G4/00
CPC分类号： H01G4/0085 , B22F1/0074 , B22F1/02 , B22F2998/10 , H01B1/22 , H01G4/30 , Y10T428/2991 , B22F1/0085 , B22F1/0088 , B22F9/04 , B22F9/30 , B22F2201/00
摘要： A nickel powder with a mean particle size of 0.05 to 1.0 µm, the nickel powder comprising a thin oxidized layer of nickel on a surface thereof and having an oxygen content of 0.3 to 3.0 wt.% and a carbon content of 100 ppm or less per specific surface area of 1 m 2 /g of the powder, in a weight proportion of carbon to the nickel powder of unit weight. When the powder is used for a conductive paste for forming inner electrode layers of a multilayer electronic component, it enables the decrease in the residual carbon amount after a binder removal process, thereby making it possible to obtain a multilayer ceramic electronic component with excellent electric characteristics and high reliability in which electrode layers excelling in continuity are formed without decreasing the strength and electric characteristics of the electronic component or creating structural defects.

7. 发明公开

EP2564957A1 Metal powder production method, metal powder produced thereby, conductive paste and multilayer ceramic electronic component 有权
标题翻译： Metallpulverherstellungsverfahren，damit hergestelltes Metallpulver，leitfähigePaste und mehrschichtige elektronische Keramikkomponente
公开(公告)号：EP2564957A1
公开(公告)日：2013-03-06
申请号：EP12181272.1
申请日：2012-08-22
申请人： SHOEI CHEMICAL INC.
发明人： Akimoto, Yuji , Nagashima, Kazuro , Maekawa, Masayuki , Ieda, Hidenori
IPC分类号： B22F9/30 , H01B1/22
CPC分类号： B22F9/30 , B22F1/0014 , B22F2998/00 , H01B1/22 , B22F1/0018 , B22F1/0044
摘要： A fine, highly-crystallized metal powder is produced at low cost and high efficiency by a method comprising: ejecting a 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 under the condition of V/S > 600, where V represents a flow rate per unit time of the carrier gas (liter/min) and S represents a cross-sectional area of the nozzle opening part (cm 2 ) ; and producing a metal powder by heating the raw material powder at a temperature T 2 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 T 1 of a nozzle opening part is set to a temperature of 400°C or higher and lower than (Tm - 200)°C. The metal powder has a high purity, extremely narrow particle size distribution and high dispersibility and is suitably used in a conductive paste for forming electrodes of a multilayer ceramic electronic component.
摘要翻译：以低成本和高效率制造精细，高结晶度的金属粉末，其方法包括：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在V / S> 600的条件下，其中V表示载气的每单位时间的流量（升/分钟），S表示喷嘴开口部的横截面积（cm 2）; 通过在比原料粉末的分解温度高的温度T 2下加热原料粉末，并且Tm（Tm-200）℃（Tm为熔点（℃））为Tm 在原料粉末以10g / l以下的浓度分散在气相中的状态下使原料粉末通过反应容器的情况下，将待制造的金属，其中环境温度T 1为喷嘴开口部设定为400℃以上且低于（Tm-200）℃的温度。金属粉末具有高纯度，极窄的粒度分布和高分散性，适合用于形成多层陶瓷电子部件的电极的导电浆料中。

8. 发明授权

EP1849540B1 Nickel powder manufacturing method 有权
标题翻译：一种生产镍粉的过程
公开(公告)号：EP1849540B1
公开(公告)日：2008-08-13
申请号：EP07106095.8
申请日：2007-04-13
申请人： SHOEI CHEMICAL INC.
发明人： Akimoto, Yuji , Nagashima, Kazuro , Ieda, Hidenori , Kimura, Tetsuya
IPC分类号： B22F9/30
CPC分类号： B22F9/30 , B22F2999/00 , B22F9/24

9. 发明授权

EP0916438B1 Nickel powder and process for preparing the same 失效
标题翻译：镍粉末和过程及其制备
公开(公告)号：EP0916438B1
公开(公告)日：2003-05-14
申请号：EP98104033.0
申请日：1998-03-06
申请人： SHOEI CHEMICAL INC.
发明人： Asada, Eiichi , Akimoto, Yuji , Nagashima, Kazuro , Yoshida, Hiroshi , Ma, Yiyi
IPC分类号： B22F1/02 , B22F9/30 , H01C17/065
CPC分类号： H01G4/0085 , B22F1/02 , B22F9/30 , B22F2998/00 , H01C17/06506 , H01C17/06553 , H05K1/092 , Y10T428/2991 , Y10T428/2998 , B22F9/026

10. 发明授权

EP0834370B1 Coated metal powder and process for preparing the same by decomposition 失效
标题翻译：涂覆的金属粉末和由分解及其制备方法
公开(公告)号：EP0834370B1
公开(公告)日：2002-01-16
申请号：EP97116642.6
申请日：1997-09-24
申请人： SHOEI CHEMICAL INC.
发明人： Asada, Eiichi , Akimoto, Yuji , Shimizu, Fumiyuki , Nagashima, Kazuro
IPC分类号： B22F1/02 , B22F9/30 , H01C17/065
CPC分类号： H01G4/0085 , B22F1/02 , B22F1/025 , B22F9/30 , B22F2998/00 , B22F2999/00 , C23D5/02 , H01C17/06513 , H01C17/06533 , H05K1/092 , B22F2207/07 , B22F9/026 , B22F2203/05

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