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1. 发明授权

US07811355B2 Niobium powder for capacitor, niobium sintered body and capacitor 有权
标题翻译：铌粉电容器，铌烧结体和电容器
公开(公告)号：US07811355B2
公开(公告)日：2010-10-12
申请号：US10578784
申请日：2004-11-09
申请人： Kazuhiro Omori , Hitoshi Amita
发明人： Kazuhiro Omori , Hitoshi Amita
IPC分类号： B22F1/02 , H01G9/042
CPC分类号： H01G9/0525 , B22F1/02 , B22F7/004 , B22F2998/10 , C04B35/495 , C04B35/6265 , C04B35/6268 , C04B35/628 , C04B35/62836 , C04B35/62897 , C04B2235/3251 , C04B2235/3253 , C04B2235/404 , C04B2235/5409 , C04B2235/5445 , H01G9/0032 , H01G9/052 , H01G11/56 , Y02E60/13 , Y10T428/12181 , B22F9/16 , B22F1/0003 , B22F9/04 , B22F3/1121
摘要： The present invention relates to niobium powder for a capacitor, comprising a niobium layer and a mixed layer of silicon nitride and niobium, the mixed layer being present in the vicinity of the powder particle surface; granulated niobium powder thereof; a niobium sintered body using the niobium powder and the granulated powder; and a capacitor using the sintered body as one electrode. The niobium powder for a capacitor of the present invention enables to produce a niobium capacitor having a high capacitance, a low leakage current, a low ESR and good tan δ characteristics and being excellent particularly in the properties of the breakdown voltage and soldering heat resistance.
摘要翻译：本发明涉及用于电容器的铌粉末，其包含铌层和氮化硅和铌的混合层，该混合层存在于粉末颗粒表面附近; 颗粒状铌粉末; 使用铌粉末和造粒粉末的铌烧结体; 以及使用该烧结体作为一个电极的电容器。本发明的电容器用铌粉末能够制造具有高电容，低漏电流，低ESR和良好的tanδ特性的铌电容器，特别是在击穿电压和焊接耐热性的特性方面优异。

2. 发明授权

US07713466B2 Valve acting metal sintered body, production method therefor and solid electrolytic capacitor 有权
标题翻译：阀作用金属烧结体，其制作方法及固体电解电容器
公开(公告)号：US07713466B2
公开(公告)日：2010-05-11
申请号：US10554694
申请日：2004-04-27
申请人： Kazuhiro Omori , Yoshinori Shibuya
发明人： Kazuhiro Omori , Yoshinori Shibuya
IPC分类号： B22F3/00
CPC分类号： H01G9/052 , B22F3/1125 , C22C1/08 , C22C27/02 , C22C29/00 , H01G9/028 , H01G9/042 , H01G9/0525 , H01G11/48 , H01G11/56 , Y02E60/13
摘要： The invention provides a valve-acting metal sintered body for anode of a solid electrolytic capacitor, having a high capacitance, well impregnated with cathode material, and exhibiting excellent properties particularly when having a large volume, a capacitor having a low ESR, an excellent tan δ value and good long-term reliability such as moisture resistance and heat resistance by using the sintered body, and a production method therefor comprising the following steps: coating/printing/shaping a granulated product of a mixed dispersion containing a pore-forming agent, an organic binder and a primary powder or secondary aggregated powder of at least one member selected from valve-acting metal, a valve-acting metal compound and a valve-acting metal alloy or a granulated powder thereof, and a solvent, or compressing and shaping the granulated product of a mixture obtained by removing the solvent from the dispersion; sintering the shaped article containing a pore-forming agent; and removing the pore-forming agent from the sintered body.
摘要翻译：本发明提供一种用于固体电解电容器的阳极的阀作用金属烧结体，其具有高电容，良好地浸渍阴极材料，并且特别是当具有大体积时具有优异的性能，具有低ESR的电容器，优异的tan δ值和通过使用烧结体的耐湿性和耐热性等良好的长期可靠性，其制造方法包括以下步骤：将含有成孔剂的混合分散体的造粒物进行涂布/ 有机粘合剂和选自阀作用金属，阀作用金属化合物和阀作用金属合金或其制粒粉末中的至少一种的初级粉末或二次聚集粉末，以及溶剂，或压缩和成形通过从分散体中除去溶剂获得的混合物的造粒产物; 烧结含有成孔剂的成形制品; 并从烧结体中除去造孔剂。

3. 发明申请

US20090256014A1 NIOBIUM POWDER, NIOBIUM GRANULATED POWDER, NIOBIUM SINTERED BODY, CAPACITOR AND PRODUCTION METHOD THEREROF 审中-公开
标题翻译：铌粉末，铌粉末粉末，铌烧结体，电容器及其制造方法
公开(公告)号：US20090256014A1
公开(公告)日：2009-10-15
申请号：US12488418
申请日：2009-06-19
申请人： Hitoshi AMITA , Kazuhiro OMORI
发明人： Hitoshi AMITA , Kazuhiro OMORI
IPC分类号： B02C23/18 , B02C23/06
CPC分类号： C22C1/045 , B22F9/04 , B22F2998/10 , C01B6/02 , H01G9/042 , H01G9/0525 , B22F9/023 , B22F1/0096
摘要： The present invention provides a method of efficiently producing niobium powder, niobium alloy powder, niobium hydride powder or niobium hydride alloy powder for a capacitor, which enables production of capacitor having a high capacitance per unit mass and good leakage current characteristics with narrow variation, and also provides a production method for sintered body and a capacitor using the niobium powder, niobium alloy powder, niobium hydride powder or niobium hydride alloy powder. According to the present invention, by grinding niobium hydride powder or niobium hydride alloy powder with a grinding aid having a density of 2 to 3.6 g/cm3 and a fracture toughness value of 1.5 MPa·m1/2 or more, such as beads made of silicon nitride or a compound containing silicon nitride, a niobium powder with high capacitance can be efficiently produced.
摘要翻译：本发明提供一种能够有效地制造电容器用的铌粉末，铌合金粉末，氢化铌粉末或氢化铌合金粉末的方法，其能够生产具有高的单位质量的电容和具有窄的变化的良好的漏电流特性的电容器，以及还提供了使用铌粉末，铌合金粉末，氢化铌粉末或氢化铌合金粉末的烧结体和电容器的制造方法。根据本发明，通过用密度为2〜3.6g / cm 3，断裂韧性值为1.5MPa.m1 / 2以上的研磨助剂研磨氢化铌粉末或氢化铌合金粉末，例如由氮化硅或含有氮化硅的化合物，可以有效地制造高容量的铌粉末。

4. 发明申请

US20060279908A1 Valve acting metal sintered body, production method therefor and solid electrolytic capacitor 有权
标题翻译：阀作用金属烧结体，其制作方法及固体电解电容器
公开(公告)号：US20060279908A1
公开(公告)日：2006-12-14
申请号：US10554694
申请日：2004-04-27
申请人： Kazuhiro Omori , Yoshinori Shibuya
发明人： Kazuhiro Omori , Yoshinori Shibuya
IPC分类号： H01G9/04 , H01G9/145
CPC分类号： H01G9/052 , B22F3/1125 , C22C1/08 , C22C27/02 , C22C29/00 , H01G9/028 , H01G9/042 , H01G9/0525 , H01G11/48 , H01G11/56 , Y02E60/13
摘要： The invention provides a valve-acting metal sintered body for anode of a solid electrolytic capacitor, having a high capacitance, well impregnated with cathode material, and exhibiting excellent properties particularly when having a large volume, a capacitor having a low ESR, an excellent tan δ value and good long-term reliability such as moisture resistance and heat resistance by using the sintered body, and a production method therefor comprising the following steps: coating/printing/shaping a granulated product of a mixed dispersion containing a pore-forming agent, an organic binder and a primary powder or secondary aggregated powder of at least one member selected from valve-acting metal, a valve-acting metal compound and a valve-acting metal alloy or a granulated powder thereof, and a solvent, or compressing and shaping the granulated product of a mixture obtained by removing the solvent from the dispersion; sintering the shaped article containing a pore-forming agent; and removing the pore-forming agent from the sintered body.
摘要翻译：本发明提供一种用于固体电解电容器的阳极的阀作用金属烧结体，其具有高电容，良好地浸渍阴极材料，并且特别是当具有大体积时具有优异的性能，具有低ESR的电容器，优异的tan δ值和通过使用该烧结体的耐湿性和耐热性等良好的长期可靠性，其制造方法包括以下步骤：将含有成孔剂的混合分散体的造粒物进行涂布/ 有机粘合剂和选自阀作用金属，阀作用金属化合物和阀作用金属合金或其制粒粉末中的至少一种的初级粉末或二次聚集粉末，以及溶剂，或压缩和成形通过从分散体中除去溶剂获得的混合物的造粒产物; 烧结含有成孔剂的成形制品; 并从烧结体中除去造孔剂。

5. 发明授权

US07132006B2 Niobium powder for capacitor, sintered body using the powder and capacitor using the same 失效
公开(公告)号：US07132006B2
公开(公告)日：2006-11-07
申请号：US10849242
申请日：2004-05-20
申请人： Kazuhiro Omori , Kazumi Naito
发明人： Kazuhiro Omori , Kazumi Naito
IPC分类号： B22F1/00 , H01G9/052
CPC分类号： H01G9/0525 , B22F2998/00 , C22C1/045 , C22C32/00
摘要： An object of the present invention is to provide an antimony-containing niobium sintered body for a capacitor having a small specific leakage current value, an antimony-containing niobium powder for use in the sintered body, and a capacitor using the sintered body. In the present invention, an antimony-containing niobium powder having an antimony content of preferably about 0.1 to about 10 mol % and an average particle size of preferably about 0.2 to about 5 μm is used. By using this antimony-containing niobium powder, a sintered body and a capacitor are constructed.

6. 发明申请

US20050041372A1 Niobium alloy, sintered body thereof, and capacitor using the same 有权
标题翻译：铌合金，其烧结体和使用其的电容器
公开(公告)号：US20050041372A1
公开(公告)日：2005-02-24
申请号：US10495211
申请日：2002-12-10
申请人： Kazuhiro Omori , Kazumi Naito
发明人： Kazuhiro Omori , Kazumi Naito
IPC分类号： C22C27/02 , C22C32/00 , H01G9/052 , H01G9/04
CPC分类号： H01G9/0525 , B22F2998/10 , C22C27/02 , C22C32/0068 , B22F1/0096 , B22F7/08 , B22F3/10 , B22F9/023 , B22F1/0003 , B22F9/04 , B22F9/24 , B22F1/0088
摘要： The present invention relates to a niobium alloy for capacitors comprising as an alloy component from 0.01 to 10 atom % of at least one element selected from the group consisting of the elements belonging to Groups 2 to 16 of the periodic table and further comprising diniobium mononitride crystals of from 0.1 to 70 mass %, wherein a powder of the niobium alloy has an average particle size of 0.05 to 5 μm and a BET specific surface area of 0.5 to 40 m2/g, a granulated product of the niobium alloy having an average particle size of 10 to 500 μm, a sintered body of the powder of the niobium alloy or granulated product thereof, a capacitor and a producing method thereof using the sintered body. A niobium capacitor using the powder of the niobium alloy of the present invention or a granulated product thereof has high capacitance and small leakage current value and is excellent in high-temperature property and heat resistance property.
摘要翻译：本发明涉及一种电容器用铌合金，其包含0.01〜10原子％的选自元素周期表第2〜16族的元素中的至少一种以上的元素的合金成分，并且还包含一价二氧化铌单晶为0.1〜70质量％，其中，所述铌合金粉末的平均粒径为0.05〜5μm，BET比表面积为0.5〜40m 2 / g，所述铌合金的造粒物具有平均粒径为10〜500μm，铌合金粉末的烧结体或其造粒物，电容器及其制造方法。使用本发明的铌合金粉末或其造粒产物的铌电容器具有高电容和小的漏电流值，并且具有优异的耐高温性和耐热性。

7. 发明授权

US06824586B2 Powder for capacitor, sintered body thereof and capacitor using the sintered body 有权
公开(公告)号：US06824586B2
公开(公告)日：2004-11-30
申请号：US10433047
申请日：2003-05-30
申请人： Kazuhiro Omori , Kazumi Naito
发明人： Kazuhiro Omori , Kazumi Naito
IPC分类号： B22F100
CPC分类号： H01G9/042 , B22F2998/00 , C22C1/045 , H01G9/0525 , B22F1/0096
摘要： A powder for capacitors, which contains 0.01 to 15 atom % of zirconium and mainly comprises niobium and/or tantalum having an average particle size of from 0.2 to 5 &mgr;m; a sintered body thereof; an a capacitor fabricated from the sintered body as one part electrode, a dielectric material formed on the surface of the sintered body, and another part electrode provided on the dielectric material. A capacitor manufactured from the sintered body of a powder for capacitors of the present invention have a large capacitance per unit mass and good leakage current characteristics.

8. 发明授权

US06540810B2 Niobium powder for capacitor, sintered body using the powder and capacitor using the same 有权
公开(公告)号：US06540810B2
公开(公告)日：2003-04-01
申请号：US09839398
申请日：2001-04-23
申请人： Kazumi Naito , Kazuhiro Omori
发明人： Kazumi Naito , Kazuhiro Omori
IPC分类号： B22F100
CPC分类号： H01G9/0525 , B22F2998/00 , C22C1/045 , B22F1/0096 , C22C32/0068
摘要： An object of the present invention is to provide a niobium sintered body free of reduction in the CV value, a niobium powder for use in the manufacture of the niobium sintered body, and a capacitor using the niobium sintered body. A niobium powder of the present invention has niobium and tantalum, where the tantalum is present in an amount at most of about 700 ppm by mass. A sintered body and a capacitor each is manufactured using the niobium powder.

9. 发明授权

US06423110B1 Powder composition for capacitor and sintered body using the composition, and capacitor using the sintered body 有权
标题翻译：使用该组合物的电容器和烧结体的粉末组合物，以及使用该烧结体的电容器
公开(公告)号：US06423110B1
公开(公告)日：2002-07-23
申请号：US09685693
申请日：2000-10-11
申请人： Kazumi Naito , Kazuhiro Omori , Nobuyuki Nagato
发明人： Kazumi Naito , Kazuhiro Omori , Nobuyuki Nagato
IPC分类号： C22C2702
CPC分类号： H01G9/0525 , C22C32/00 , C22C32/0089
摘要： A powder composition for a capacitor comprising a tantalum or niobium and a compound having a silicon-oxygen bond, at least a part of which may be nitrided and which has an average particle size of from about 0.1 to about 5 &mgr;m; a sintered body using the composition; and a capacitor constituted by the sintered body as one part electrode, and another part electrode. A capacitor favored with high reliability, lower dissipation level of power and smaller deterioration of capacitance than conventional tantalum capacitors using tantalum can be produced by using a sintered body of the powder composition for a capacitor.
摘要翻译：一种用于包含钽或铌的电容器的粉末组合物和具有硅 - 氧键的化合物，其至少一部分可被氮化并且其平均粒度为约0.1至约5μm; 使用该组合物的烧结体; 以及由烧结体构成为一部分电极的电容器和另一部分电极。通过使用用于电容器的粉末组合物的烧结体，可以制造出具有高可靠性，较低耗散功率和比较常规使用钽的钽电容器更小的电容劣化的电容器。

10. 发明授权

US07737066B2 Niobium monoxide powder, niobium monoxide sintered body and capacitor using the sintered body 失效
标题翻译：铌一氧化物粉末，一氧化铌烧结体和使用该烧结体的电容器
公开(公告)号：US07737066B2
公开(公告)日：2010-06-15
申请号：US10382570
申请日：2003-03-07
申请人： Kazuhiro Omori , Kazumi Naito , Toshiya Kawasaki , Kouichi Wada
发明人： Kazuhiro Omori , Kazumi Naito , Toshiya Kawasaki , Kouichi Wada
IPC分类号： C01G33/00
CPC分类号： C01G33/00 , C01P2002/52 , C01P2004/60 , C01P2004/61 , C01P2006/11 , C01P2006/12 , C01P2006/14 , C01P2006/17 , C01P2006/40 , C01P2006/80 , C04B35/495 , C04B35/6262 , C04B35/62655 , C04B35/6268 , C04B35/63424 , C04B35/638 , C04B38/0615 , C04B2111/00853 , C04B2235/5409 , C04B2235/5427 , C04B2235/5436 , C04B2235/6581 , C04B2235/72 , C04B2235/79 , H01G9/028 , H01G9/0525 , C04B38/0054 , C04B38/007
摘要： (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x=0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 μm, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 μm to 500 μm, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 μm and in the range of 0.7 to 3 μm, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.
摘要翻译：（1）一种用于由式NbO x（x = 0.8〜1.2）表示的电容器的铌氧化物粉末，任选地含有50〜200,000ppm的其他元素，敲击密度为0.5〜2.5g / ml，平均粒径为10〜1000μm，休止角为10°〜60°，BET比表面积为0.5〜40m 2 / g，孔分布中的多个孔径峰顶及其制造方法。（2）一种铌一氧化物烧结体，其通过烧结上述铌一氧化物粉末而获得，并且具有多个孔径峰值在0.01μm至500μm的范围内，优选地，多个峰值峰值在多个具有最高相对强度的孔径峰顶的分子量的制造方法分别为0.2〜0.7μm，0.7〜3μm的范围。（3）使用上述烧结体的电容器及其制造方法; 和（4）使用上述电容器的电子电路和电子装置。

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