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    • 91. 发明专利
    • CONDUCTING COMPOUND
    • JPH03201308A
    • 1991-09-03
    • JP33899789
    • 1989-12-26
    • DAIDO STEEL CO LTDTOA GOSEI CHEM IND
    • TAKAGI SHINOBUSHIMIZU TAKASUMIKISHIMOTO YOSHIHISAURAMOTO YOSHITO
    • H01B1/02H05K1/09
    • PURPOSE:To obtain a conducting compound excellent in printing, conducting and long-stabilized conducting properties, etc., by constituting a conducting compound out of copper particles mixed together with crystal-particle-aggregate copper particles and three-branchlike copper particles, thermosetting resin, fatty acid, metallic salt thereof and amine compound. CONSTITUTION:A conducting compound is constituted of copper particles mixed together with 90-99weight% crystal-particle-aggregated copper particles and 1-10weight% tree-branchlike copper particles, thermosetting resin, fatty acid (salt) of 7-23 carbone molecules, and amine compound. In this case, the copper particles A is such an aggregation of crystal particles that they macroscopicly become particles with their surfaces roughened, while the conducting circuit of obtainable conducting compound is better for soldering than mere crystal particles, and the copper particles are mutually intertwined. Besides, copper particles B, judging from their form, promote the mutual intertwining of the particles and the roughening of the particle surfaces. This enables the obtaining of an excellent conducting compound durable for long use.
    • 94. 发明专利
    • PRODUCTION OF BORON PHOSPHIDE
    • JPH029713A
    • 1990-01-12
    • JP15894288
    • 1988-06-27
    • DAIDO STEEL CO LTD
    • SHIMIZU TAKASUMITAKAGI SHINOBUMATSUYAMA MAKOTO
    • C01B35/04
    • PURPOSE:To easily product boron phosphide by reacting red phosphorus with boron at a high temp. under high pressure to prepare the compd. having a substantially equimolar amt. thereof. CONSTITUTION:The mixture of red phosphorus and boron in the substantially equimolar amt. is reacted at a high temp. under high pressure. The preferable condition for reacting the mixture is 500-1500 deg.C the reaction temp. and 1000-3000kg f/cm the reaction pressure. As the apparatus, a hot isostatic pressing apparatus or hot pressing apparatus is suitable. By the method above- mentioned, the red phosphorus is molten by heating at a high temp. and suppressed to escape at a high pressure, and the boron is dissolved in such red phosphorus to react in the substantially equimolar amt. At the time, by using fine powder as raw material, the fine powdered boron phosphide can be formed, or by molding both raw materials with a binder and thereafter by reacting, a sintered compact having a fixed shape can be obtd.
    • 96. 发明专利
    • PRODUCTION OF FINE METAL POWDER
    • JPS6447801A
    • 1989-02-22
    • JP20229287
    • 1987-08-13
    • DAIDO STEEL CO LTD
    • TAKAGI SHINOBU
    • B22F9/22B22F9/26
    • PURPOSE:To produce a metal powder having high purity and crystallinity by dissolving and dispersing fine metal oxide powder into an org. solvent of a specific b. p. and holding this liquid suspension in a hydrogen atmosphere for a prescribed period of time at the temp. below the b. p. of the solvent. CONSTITUTION:The fine powder of the metal oxide or metal hydroxide of copper, silver, platinum, etc., is dissolved and dispersed in the org. solvent having >=100 deg.C b. p. Ethylene glycol or glycerol or the deriv. thereof is preferably used for the org. solvent. This liquid suspension of the org. solvent is held in the hydrogen atmosphere for the prescribed period of time at the temp. below the b. p. thereof. The fine metal powder of a polyhedral shape having good crystallinity is thus obtd. by the relatively simple operation. This fine metal powder is less surface-oxidized and is hardly oxidized at ordinary temp.
    • 97. 发明专利
    • Pulverulent body to be pressure-molded for powder magnetic core and method for producing powder magnetic core
    • 用于粉末磁芯的压力成型体和用于生产粉末磁芯的方法
    • JP2012129217A
    • 2012-07-05
    • JP2010272564
    • 2010-12-07
    • Daido Steel Co Ltd大同特殊鋼株式会社
    • TAKAGI SHINOBUTAKEMOTO SATOSHI
    • H01F1/20B22F1/00B22F1/02B22F3/00B22F3/24H01F41/02
    • PROBLEM TO BE SOLVED: To provide a method for producing a powder magnetic core which reduces iron loss, and to provide a pulverulent body to be pressure-molded for the powder magnetic core.SOLUTION: The pulverulent body is composed of a mixed power of a coagulation prevention powder (3) and a pure Fe powder (2) made of pure Fe. The coagulation prevention powder that is composed of at least one from among MgO, TiOand AlOis provided on a part of the pure Fe powder surface. Further, a binder (5) is provided on the whole pure Fe powder surface so as to cover it. The manufacturing method comprises: a step of obtaining the pure Fe powder with an atomizing method; an intermediate mixing step of mixing the pure Fe powder with the coagulation prevention powder to obtain an intermediate powder composed of an intermediate powder that is the pure Fe powder of having the coagulation prevention powder provided at a part of the pure Fe powder surface; a heat-treatment step of heat-treating the intermediate powder to remove a distortion accumulated inside of the pure Fe powder; a mixing step of mixing the intermediate powder with the binder to obtain a mixture containing the binder and an Fe powder composed of the pure Fe powder having the binder provided so as to cover the whole pure Fe powder surface; and a molding step of pressure-molding the mixture.
    • 解决的问题:提供一种制造减少铁损的粉末磁芯的方法,并提供用于粉末磁芯的压模的粉状体。 解决方案:粉末体由防凝粉(3)和纯Fe制成的纯Fe粉(2)的混合动力组成。 由MgO,TiO 2 和Al 2
    • 98. 发明专利
    • Metal separator material for polymer electrolyte fuel cell
    • 用于聚合物电解质燃料电池的金属分离器材料
    • JP2009019228A
    • 2009-01-29
    • JP2007181476
    • 2007-07-10
    • Daido Steel Co Ltd大同特殊鋼株式会社
    • FUTO MASAYOSHITAKAGI SHINOBUHISADA TAKEO
    • C22C38/00C22C38/60H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To make it possible to use austenitic stainless steel as a metal separator material for polymer electrolyte fuel cell by increasing the electric conductivity of the austenitic stainless steel while maintaining its excellent sulfuric acid corrosion resistance. SOLUTION: The austenitic stainless steel, which has a composition consisting of, by mass, 0.02 to 0.4% C, 0.03 to 2% Ti, 0.01 to 0.7% S, ≤2% Si, ≤2% Mn, 2 to 30% Ni, 12 to 30% Cr, ≤0.05% P, ≤0.03% O, ≤0.05% N and the balance Fe with inevitable impurities and satisfying inequalities 0.3≤4×C/Ti≤1.0 and 0.2≤1.5×S/Ti≤1.0 (wherein each atomic symbol represents its content in mass%), is used as the metal separator material. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了使奥氏体不锈钢作为固体高分子型燃料电池的金属隔板材料可以通过提高奥氏体不锈钢的导电率同时保持其优异的耐硫酸腐蚀性而成为可能。 解决方案:奥氏体不锈钢,其组成以质量计为0.02〜0.4%,0.03〜2%Ti,0.01〜0.7%S,≤2%Si,≤2%Mn,2〜 30%Ni,12〜30%Cr,≤0.05%P,≤0.03%O,≤0.05%N,余量为Fe和不可避免的杂质,满足不等式0.3≤4×C /Ti≤1.0和0.2≤1.5×S / Ti≤1.0(其中,各原子符号表示其质量%)作为金属隔板材料。 版权所有(C)2009,JPO&INPIT
    • 99. 发明专利
    • Metal separator for fuel cell, manufacturing method of the same, and fuel cell
    • 用于燃料电池的金属分离器,其制造方法和燃料电池
    • JP2007323988A
    • 2007-12-13
    • JP2006153563
    • 2006-06-01
    • Daido Steel Co Ltd大同特殊鋼株式会社
    • TAKAGI SHINOBUFUTO MASAYOSHIHISADA TAKEO
    • H01M8/02H01M8/10
    • Y02P70/56
    • PROBLEM TO BE SOLVED: To provide a metal separator for a fuel cell having sufficient corrosion resistance although a noble metal film is thin, and easy to manufacture. SOLUTION: In this separator for a fuel cell, a metal material plate material constituting it has a plate-like base material of a metal material where a passive film is formed on a surface thereof in the atmosphere, and a noble metal coating layer covering the surface of the base material and containing a diffused metal constituent from the base material. When noble metal concentration is analyzed in the depth direction from the surface layer side of the noble metal coating layer by an Auger electron spectral analysis method, a main part of the noble metal coating layer where the noble metal concentration C N is set constant in the range of 85-99.8 mass% in the depth direction is discerned from a noble metal concentration transition part thereof where the noble metal concentration C N is gradually reduced from the noble metal concentration C A of the main part toward bulk noble metal concentration C B of the base material as shown on the right of the figure. In the main part, the content of the diffused metal constituent C F is 0.2-15 mass%, and the thickness t1 is not smaller than 1 nm and not larger than 100 nm, and larger than the thickness t2 of the noble metal concentration transition part. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种具有足够的耐腐蚀性的燃料电池用金属隔板,尽管贵金属薄膜薄,易于制造。 解决方案:在燃料电池用隔板中,构成它的金属材料板材具有金属材料的板状基材,其中在大气中的表面上形成钝化膜,贵金属涂层 覆盖基材的表面并且从基材包含扩散的金属成分的层。 当通过俄歇电子光谱分析方法从贵金属涂层的表面层侧的深度方向分析贵金属浓度时,贵金属涂层的贵金属浓度C 从贵金属浓度C N 从贵金属浓度逐渐降低的贵金属浓度转变部分可以看出,深度方向上的SB>在85-99.8质量%的范围内被设定为恒定 主要部分朝向基体材料的本体贵金属浓度C B 的C A ,如图所示。 在主要部分中,扩散金属成分C F 的含量为0.2〜15质量%,厚度t1不小于1nm且不大于100nm,并且厚度大于厚度 t2的贵金属浓度转变部分。 版权所有(C)2008,JPO&INPIT
    • 100. 发明专利
    • Corrosion-resistant conductive member
    • 耐腐蚀导电构件
    • JP2005142074A
    • 2005-06-02
    • JP2003378533
    • 2003-11-07
    • Daido Steel Co Ltd大同特殊鋼株式会社
    • HISADA TAKEOKANEDA YASUSHITAKAGI SHINOBUFUSE NAOKI
    • C25D3/48H01M8/02
    • C25D3/48H01M8/0206H01M8/021H01M8/0228Y10T428/12889Y10T428/12979
    • PROBLEM TO BE SOLVED: To always guarantee high corrosion resistance even in the case of an ultrathin Au layer, for a corrosion-resistant conductive member with a stainless steel sheet equipped with an Au-plating layer of a thickness of 100 nm or less, to be used as a separator for a fuel cell. SOLUTION: A maximum value (v) of energy detection intensity of Au is to reach at least 98% against the total element energy detection intensity (100%) in the Au thin layer from the surface up to an interface between the Au layer and base metals (a face equivalent to a position where a sinking Au curve crosses a rising curve of the most predominant ingredient out of the base metals, when a graph is made of energy intensities obtained in an Auger analysis of the corrosion-resistant conductive member). COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:即使在超薄Au层的情况下,一直保证高耐腐蚀性,对于具有厚度为100nm的Au镀层的不锈钢板的耐腐蚀导电构件,或 较少,被用作燃料电池的分离器。

      解决方案:Au的能量检测强度的最大值(v)相对于Au薄层从表面直到Au之间的界面的总元素能量检测强度(100%)达到至少98% 层和贱金属(相当于下沉的Au曲线穿过基本金属中最主要成分的上升曲线的位置的面,当图表由在耐腐蚀导电的俄歇分析中获得的能量强度 会员)。 版权所有(C)2005,JPO&NCIPI