专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US08268093B2 R-Fe-B porous magnet and method for producing the same 有权
标题翻译： R-Fe-B多孔磁体及其制造方法
公开(公告)号：US08268093B2
公开(公告)日：2012-09-18
申请号：US12092300
申请日：2007-05-18
申请人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
发明人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
IPC分类号： H01F1/057
CPC分类号： H01F1/057 , H01F1/0573 , H01F1/0576 , H01F1/0578 , H01F1/0579 , H01F41/028 , Y10T428/12153
摘要： An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.
摘要翻译：根据本发明的R-Fe-B系多孔磁体具有平均粒径为0.1μm〜1μm的Nd2Fe14B型结晶相的集合体。磁体的至少一部分是多孔的并且具有长轴为1μm至20μm的微孔。

32. 发明授权

US07547365B2 Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet 有权
标题翻译：通过带材铸造生产用于纳米复合型永磁体的原料合金的方法
公开(公告)号：US07547365B2
公开(公告)日：2009-06-16
申请号：US11288710
申请日：2005-11-28
申请人： Ryo Murakami , Hirokazu Kanekiyo , Satoshi Hirosawa
发明人： Ryo Murakami , Hirokazu Kanekiyo , Satoshi Hirosawa
IPC分类号： H01F1/032 , H01F1/057
CPC分类号： C22C45/02 , B22D11/0611 , B82Y25/00 , C21D2201/03 , H01F1/0571 , H01F1/0579 , H01F1/058
摘要： To make a raw alloy, consisting mostly of amorphous structure, highly productively and at a reduced cost for a nanocomposite magnet, a molten alloy represented by Fe100-x-y-zRxQyMz (where R is at least one element selected from Pr, Nd, Dy and Tb; Q is B and/or C; M is at least one element selected from Co, Al, Si, Ti, V, Cr, Mn, Ni, Cu, Ga, Zr, Nb, Mo, Ag, Pt, Au and Pb; and 1 at %≦x
摘要翻译：为了制备主要由非晶结构组成的原料合金，以纳米复合磁体为代价的低成本的Fe100-xy-zRxQyMz（其中R是选自Pr，Nd，Dy中的至少一种元素）和 Tb; Q为B和/或C; M为选自Co，Al，Si，Ti，V，Cr，Mn，Ni，Cu，Ga，Zr，Nb，Mo，Ag，Pt，Au和 Pb;和1 at％<= x <6at％，15at％<= y <= 30at％和0 at％<= z <= 7at％）。该熔融合金通过带钢铸造方法快速冷却，其中将合金送入冷却辊，以3m / s至小于20m / s的圆周速度，以每单位接触宽度0.2的进料速率 kg / min / cm〜5.2kg / min / cm。以这种方式，可以获得包含至少60体积％的非晶相的合金。

33. 发明授权

US06890392B2 Nanocomposite magnet and method for producing same 有权
标题翻译：纳米复合磁体及其制造方法
公开(公告)号：US06890392B2
公开(公告)日：2005-05-10
申请号：US10222822
申请日：2002-08-19
申请人： Hirokazu Kanekiyo , Toshio Miyoshi , Satoshi Hirosawa
发明人： Hirokazu Kanekiyo , Toshio Miyoshi , Satoshi Hirosawa
IPC分类号： H01F1/057 , H01F1/058 , H01F1/053
CPC分类号： B82Y25/00 , B22F2009/041 , B22F2998/10 , H01F1/0571 , H01F1/0578 , H01F1/0579 , H01F1/058 , B22F9/008 , B22F9/04 , B22F9/007
摘要： A method of making a material alloy for an iron-based rare earth magnet includes the step of forming a melt of an alloy with a composition of (Fe1-mTm)100-x-y-z-n(B1-pCp)xRyTi2Mn. T is Co and/or Ni; R is at least one element selected from Y (yttrium) and the rare earth elements; and M is at least one element selected from Al, Si, V, Cr, Mn, Ni, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, wherein the following inequalities are satisfied: 10
摘要翻译：一种制备铁基稀土磁体的材料合金的方法包括以下组合物形成合金熔体的步骤：（Fe 1-m M t））100-xyzn（B 1-p C p）x x X x X z Ti 2 N n N n。 T是Co和/或Ni; R是选自Y（钇）和稀土元素中的至少一种元素; 并且M是选自Al，Si，V，Cr，Mn，Ni，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb中的至少一种元素，其中以下满足不等式：10

34. 发明授权

US06585831B2 Method of making iron base magnetic material alloy powder 有权
标题翻译：制造铁基磁性材料合金粉末的方法
公开(公告)号：US06585831B2
公开(公告)日：2003-07-01
申请号：US09741080
申请日：2000-12-21
申请人： Yasutaka Shigemoto , Satoshi Hirosawa
发明人： Yasutaka Shigemoto , Satoshi Hirosawa
IPC分类号： H01F1057
CPC分类号： B82Y25/00 , B22F9/04 , B22F2009/041 , B22F2998/00 , B22F2998/10 , H01F1/0571 , H01F1/0579 , H01F1/15333 , H01F1/15341 , H01F1/1535 , C22C1/0441 , B22F1/0044 , B22F1/0085
摘要： A method of making an iron base magnetic material alloy powder includes the steps of: preparing an iron base magnetic material alloy containing at least 50% by mass of iron; and pulverizing the magnetic material alloy using a pin mill. A portion of the mill, which comes into contact with the magnetic material alloy, is made of a cemented carbide material at least partially.
摘要翻译：制备铁基磁性材料合金粉末的方法包括以下步骤：制备含有至少50质量％的铁的铁基磁性材料合金; 并使用销磨机粉碎磁性材料合金。与磁性材料合金接触的磨机的一部分至少部分地由硬质合金材料制成。

35. 发明授权

US06168673A Sheet magnet having microcrystalline structure and method of manufacturing the same, and method of manufacturing isotropic permanent magnet powder 有权
标题翻译：具有微晶结构的片状磁体及其制造方法以及制造各向同性永磁体粉末的方法
公开(公告)号：US06168673A
公开(公告)日：2001-01-02
申请号：US09284604
申请日：1999-05-20
申请人： Hirokazu Kanekiyo , Satoshi Hirosawa
发明人： Hirokazu Kanekiyo , Satoshi Hirosawa
IPC分类号： H01F1053
CPC分类号： B82Y25/00 , H01F1/0571 , H01F1/0579
摘要： An object of this invention is to provide a thin-film magnet having a residual magnetic flux density Br of not less than 10 kG, a cost performance equal to that of a hard ferrite magnet, and a thickness of 70-300 &mgr;m contributing to the miniaturization and thinning of a magnetic circuit, and a method of manufacturing the same. When a molten alloy of a predetermined structure having a small content of a rare earth element is subjected to continuous casting using a cooling roll in an inert gas atmosphere with reduced pressures of not more than 30 kPa at a predetermined peripheral speed of the roll, it turns into a crystalline structure substantially not less than 90% of which comprises a Fe3B type compound and a compound phase having &agr; —Fe and Nd2Fe14B type crystalline structures compatible with the former. A continuous thin-film magnet of 70-300 &mgr;m in thickness comprising a microcrystalline structure of 10-50 nm in average crystal grain diameter having magnetic characteristics of iHc≧2 kOe, Br≧10 kG and practically usable as a permanent magnet can be obtained. A thin-film magnet which has heretofore been difficult to be industrially produced can be mass-produced at a low price by a simple method.
摘要翻译：本发明的目的是提供一种具有不小于10kG的剩余磁通密度Br，与硬质铁氧体磁体相同的成本性能和70-300μm的厚度的薄膜磁体，磁路的小型化和薄化及其制造方法。使用稀土元素含量少的预定结构的熔融合金，在辊的预定圆周速度下，在惰性气体气氛中以不超过30kPa的减压下，使用冷却辊进行连续铸造，变成基本上不小于90％的晶体结构，其包含Fe 3 B型化合物和具有与前者相容的α-Fe和Nd 2 Fe 14 B型结晶结构的化合物相。具有70-300μm厚度的连续薄膜磁体，其包含具有iHc> = 2kOe，Br> = 10kG的磁特性并且实际上可用作永磁体的平均晶粒直径为10-50nm的微晶结构得到。迄今为止难以在工业上生产的薄膜磁体可以通过简单的方法以低价格批量生产。

36. 发明授权

US5200001A Permanent magnet 失效
标题翻译：永久磁铁
公开(公告)号：US5200001A
公开(公告)日：1993-04-06
申请号：US619642
申请日：1990-11-29
申请人： Satoshi Hirosawa , Atsushi Hanaki , Hiroyuki Tomizawa , Shuji Mino
发明人： Satoshi Hirosawa , Atsushi Hanaki , Hiroyuki Tomizawa , Shuji Mino
IPC分类号： C22C45/02 , H01F1/057
CPC分类号： C22C45/02 , H01F1/057 , H01F1/0577
摘要： An anisotropic sintered permanent magnet consists essentially of 12 to 18 at % R, wherein R represents Pr, Nd, Dy, Tb and other rare earth element or elements contained as inevitable impurities provided that 0.8.ltoreq.(Pr+Nd+Dy+Tb)/R.ltoreq.1.0, 5 to 9.5 at % B, 2 to 5 at % Mo, 0.01 to 0.5 at % Cu, 0.1 to 3 at % Al, and balance being Fe. B(x) and Mo(y) are (x-4.5).ltoreq.y.ltoreq.(x-3.0), and part of Fe may be replaced by Co to be 3-7 at % Co. Up to 90 at % of Mo may be replaced by V. The magnet is characterized by main tetragonal R.sub.2 (Fe, Mo).sub.14 B or R.sub.2 (Fe, Co, Mo).sub.14 B phase and boundary phase of (Fe, Mo)-B, or (Fe, Co, Mo)-B and R.sub.m (Fe, Co, Mo).sub.n where m/n=1/2 to 3/1. B-rich phase Nd.sub.1+.epsilon. Fe.sub.4 B.sub.4 disappears. Dy and/or Tb linearly increase iHc. High coercivity and maximum energy product are obtained: iHc.gtoreq.15 kOe (or 21 kOe) and (BH)max.gtoreq.20 MGOe (or 28 MGOe) with high corrosion resistance and high pulverizability of alloy.

37. 发明授权

US08128758B2 R-Fe-B microcrystalline high-density magnet and process for production thereof 有权
标题翻译： R-Fe-B微晶高密度磁铁及其制造方法
公开(公告)号：US08128758B2
公开(公告)日：2012-03-06
申请号：US12254967
申请日：2008-10-21
申请人： Noriyuki Nozawa , Takeshi Nishiuchi , Satoshi Hirosawa , Tomohito Maki
发明人： Noriyuki Nozawa , Takeshi Nishiuchi , Satoshi Hirosawa , Tomohito Maki
IPC分类号： H01F1/057
CPC分类号： H01F41/0273 , B22F3/11 , B22F2003/248 , B22F2998/10 , C22C38/005 , C22C2202/02 , H01F1/0573 , H01F1/0576 , H01F1/0577 , H01F1/0578 , H01F41/0293 , B22F3/02 , B22F3/24
摘要： An R—Fe—B based rare-earth alloy powder with a mean particle size of less than about 20 μm is provided and compacted to make a powder compact. Next, the powder compact is subjected to a heat treatment at a temperature of about 550° C. to less than about 1,000° C. within hydrogen gas, thereby producing hydrogenation and disproportionation reactions (HD processes). Then, the powder compact is subjected to another heat treatment at a temperature of about 550° C. to less than about 1,000° C. within either a vacuum or an inert atmosphere, thereby producing desorption and recombination reactions and obtaining a porous material including fine crystal grains, of which the density is about 60% to about 90% of their true density and which have an average crystal grain size of about 0.01 μm to about 2 μm (DR processes). Thereafter, the porous material is subjected to yet another heat treatment at a temperature of about 750° C. to less than about 1,000° C. within either the vacuum or the inert atmosphere, thereby further increasing its density to about 93% or more of their true density and making an R—Fe—B based microcrystalline high-density magnet.
摘要翻译：提供平均粒度小于约20μm的R-Fe-B基稀土合金粉末并压实成粉末压块。接着，在氢气中，在约550℃至小于约1000℃的温度下对粉体进行热处理，由此进行氢化和歧化反应（HD工艺）。然后，在真空或惰性气氛中，将粉末压块在约550℃至小于约1000℃的温度下进行另外的热处理，从而产生解吸和重组反应，并获得包括精细的多孔材料晶粒，其密度为其真密度的约60％至约90％，并且其平均晶粒尺寸为约0.01μm至约2μm（DR工艺）。此后，多孔材料在真空或惰性气氛中在约750℃至小于约1000℃的温度下进行另外的热处理，从而进一步将其密度提高到约93％以上它们的真实密度并制成R-Fe-B基微晶高密度磁体。

38. 发明授权

US07988797B2 Nano-composite magnet, quenched alloy for nano-composite magnet, and method for producing them and method for distinguishing them 有权
标题翻译：纳米复合磁体，纳米复合磁体淬火合金及其制造方法和区别它们的方法
公开(公告)号：US07988797B2
公开(公告)日：2011-08-02
申请号：US12781093
申请日：2010-05-17
申请人： Yasutaka Shigemoto , Satoshi Hirosawa , Toshio Miyoshi
发明人： Yasutaka Shigemoto , Satoshi Hirosawa , Toshio Miyoshi
IPC分类号： H01F1/057 , H01F1/058
CPC分类号： B82Y25/00 , B22D11/0611 , H01F1/0579 , H01F1/058 , H01F41/0253
摘要： A nanocomposite magnet according to the present invention has a composition represented by the general formula: RxQyMz(Fe1-mTm)bal, where R is at least one rare-earth element, Q is at least one element selected from the group consisting of B and C, M is at least one metal element that is selected from the group consisting of Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb and that always includes Ti, and T is at least one element selected from the group consisting of Co and Ni. The mole fractions x, y, z and m satisfy the inequalities of 6 at %≦x
摘要翻译：根据本发明的纳米复合磁体具有由以下通式表示的组成：RxQyMz（Fe1-mTm）bal，其中R是至少一种稀土元素，Q是选自B和 C，M是选自Al，Si，Ti，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt中的至少一种金属元素，Au和Pb，并且总是包括Ti，T是选自Co和Ni中的至少一种元素。摩尔分数x，y，z和m满足不等式6 at％＆nlE; x <10 at％，10 at％＆nlE; y＆nlE; 17 at％，0.5 at％＆nlE; z＆nlE; 6 at％和0＆nlE; m＆ ; 0.5。纳米复合磁体包括磁耦合在一起的硬磁相和软磁相。硬磁相由R2Fe14B型化合物制成，软磁相包括α-Fe相和居里温度为610℃〜700℃（ω相）为主相的结晶相。

39. 发明申请

US20090123774A1 R-Fe-Beta POROUS MAGNET AND METHOD FOR PRODUCING THE SAME 有权
标题翻译： R-Fe-β多孔磁铁及其制造方法
公开(公告)号：US20090123774A1
公开(公告)日：2009-05-14
申请号：US12092300
申请日：2007-05-18
申请人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
发明人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
IPC分类号： H01F1/053
CPC分类号： H01F1/057 , H01F1/0573 , H01F1/0576 , H01F1/0578 , H01F1/0579 , H01F41/028 , Y10T428/12153
摘要： An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.
摘要翻译：根据本发明的R-Fe-B系多孔磁体具有平均粒径为0.1μm〜1μm的Nd2Fe14B型结晶相的集合体。磁体的至少一部分是多孔的并且具有长度为1〜20μm的微孔。

40. 发明申请

US20070137732A1 MAGNETIC ALLOY MATERIAL AND METHOD OF MAKING THE MAGNETIC ALLOY MATERIAL 有权
标题翻译：磁性合金材料及制备磁性合金材料的方法
公开(公告)号：US20070137732A1
公开(公告)日：2007-06-21
申请号：US11673729
申请日：2007-02-12
申请人： Ryosuke KOGURE , Hirokazu KANEKIYO , Takeshi NISHIUCHI , Satoshi HIROSAWA
发明人： Ryosuke KOGURE , Hirokazu KANEKIYO , Takeshi NISHIUCHI , Satoshi HIROSAWA
IPC分类号： H01F1/055
CPC分类号： H01F1/015 , H01F1/0571
摘要： A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREaAbTMC where RE is at least one rare-earth element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm and including at least about 90 at % of La; A is at least one element selected from Al, Si, Ga, Ge and Sn; TM is at least one transition metal element selected from Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and 5 at %≦a≦10 at 5%, 4.7 at% ≦b≦18 at % and 0 at %≦c≦9 at %; and producing a compound phase having an NaZn13-type crystal structure in at least about 70 vol % of the rapidly solidified alloy.
摘要翻译：制造磁性合金材料的方法包括以下步骤：制备具有预定组成的合金材料的熔体; 快速冷却和固化熔体以获得由以下组成的快速固化的合金：Fe 100 B a C B C / SUB>其中RE是选自La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb，Dy，Ho，Er和Tm中的至少一种稀土元素，并且包括至少约90at％的La ; A是选自Al，Si，Ga，Ge和Sn中的至少一种元素; TM是选自Sc，Ti，V，Cr，Mn，Co，Ni，Cu和Zn中的至少一种过渡金属元素; 和5 at％<= a <= 10在5％，4.7 at％<= b <= 18 at％和0 at％<= c <= 9 at％; 并在至少约70vol％的快速凝固合金中生产具有NaZn 13 N型晶体结构的化合物相。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式