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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
181	RARE EARTH ALLOY SINTERED COMPACT AND METHOD OF MAKING THE SAME	PCT/JP0203237	2002-03-29	WO02079530A2	2002-10-10	MORIMOTO HITOSHI; KANEKO YUJI
A rare earth sintered compact includes a main phase represented by (LR1xHRX)2T14A, where T is Fe with or without non-Fe transition metal element(s); A is boron with or without carbon; LR is a light rare earth element such as Nol; HR is a heavy rare earth element such as Dy; and O
182	Sm(Co, Fe, Cu, Zr, C) COMPOSITIONS AND METHODS OF PRODUCING SAME	PCT/US9924989	1999-10-25	WO0026926A9	2000-11-09	GONG WEI; MA BAO-MIN
Carbon addition to the rapidly solidified, preferably melt spun, alloy system of Sm(Co, Fe, Cu, Zr) provides for good isotropic magnetic properties. Importantly, these alloys are nanocomposite in nature and comprise the SmCoC2 phase. Thermal processing of these materials can achieve good magnetic properties at lower temperatures and/or shorter processing times than conventional Sm(Co, Fe, Cu, Zr) powders for bonded magnet application.
183	THIN PLATE MAGNET HAVING MICROCRYSTALLINE STRUCTURE	PCT/JP1998/000331	1998-01-28	WO98036428A1	1998-08-20
A method of manufacturing an Nd-Fe-B microcrystalline permanent magnet which contains a low concentration of rare-earth elements, in which a soft magnetic phase and a hard magnetic phase are intermixed, which has, after cast, an inherent coercive force iHc of not less than 2.5 kOe and a residual flux density Br of not less than 9 kG, which has a cost-performance comparable to that of a hard ferrite magnet, and which has a microcrystalline structure having a thickness of 70 mu m - 500 mu m and contributing to the size and thickness reduction of a magnetic circuit. The melt of an alloy with a specific composition is cast onto a rotating cooling roll in a depressurized inert gas atmosphere with a pressure not higher than 30 kPa and a microcrystalline permanent magnet alloy having a microcrystalline structure of 15 nm - 50 nm is directly manufactured from the alloy melt. By employing an alloy melt with a specific composition to which Co, Cr, Mn, Ni, Cu, Ga, Ag, Pt, Au and Pb are added in this manufacturing process, a microcrystalline permanent magnet alloy such that the inherent coercive force iHc can be improved to be not less than 2.5 kOe, an optimum roll circumferential velocity range with which the hard magnetic characteristics can be exhibited can be widened in comparison with the range of the manufacturing conditions of Nd-Fe-B ternary magnet, and the thickness of 70 mu m - 500 mu m can be obtained.
184	ANISOTROPIC NANOCOMPOSITE RARE EARTH PERMANENT MAGNETS AND METHOD OF MAKING	PCT/US2005023489	2005-06-30	WO2006004998A3	2006-05-04	LIU SHIQIANG; LEE DON
A bulk, anisotropic, nanocomposite, rare earth permanent magnet. Methods of making the bulk, anisotropic, nanocomposite, rare earth permanent magnets are also described.
185	NANOCOMPOSITE MAGNET AND METHOD FOR PRODUCING SAME	PCT/JP2001/009854	2001-11-09	WO02039465A1	2002-05-16
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)xRyTizMn. 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
186	PROCESS FOR PRODUCING, THROUGH STRIP CASTING, RAW ALLOY FOR NANOCOMPOSITE TYPE PERMANENT MAGNET	PCT/JP2001/008317	2001-09-25	WO02030595A1	2002-04-18
A process for efficiently producing at low cost a raw alloy for nanocomposite magnets which is mainly amorphous. The process comprises preparing a molten alloy represented by Fe100-x-y-zRxQyMz (wherein R is at least one of praseodymium, neodymium, dysprosium, and terbium; Q is at least one of boron and carbon; M is at least one of cobalt, aluminum, silicon, titanium, vanadium, chromium, manganese, nickel, copper, gallium, zirconium, niobium, molybdenum, silver, platinum, gold, and lead; 1 ≤ x < 6 at.%; 15 ≤ y ≤ 30 at.%; and 0 ≤ z ≤ 7 at.%) and feeding this molten alloy to a cooling roll rotating at a peripheral speed of 3 to 20 m/sec, excluding 20 m/sec, so that the feed rate per unit contact width is in the range of 0.2 to 5.2 kg/min/cm to thereby rapidly cool the alloy by strip casting. Thus, an alloy at least 60 vol.% of which is amorphous can be produced.
187	PERMANENT MAGNET INCLUDING MULTIPLE FERROMAGNETIC PHASES AND METHOD FOR PRODUCING THE MAGNET	PCT/JP2001/004244	2001-05-21	WO01091139A1	2001-11-29
An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at%<)x
188	Method for producing a magnetic article	GB0817924	2008-10-01	GB2463931B	2011-01-12	KATTER MATTHIAS; GERSTER JOACHIM; ROTH OTTMAR
A magnetic article comprises, in total, elements in amounts capable of providing at least one (La1-aMa)(Fe1-b-cTbYc)13-dXe phase and less than 0.5 Vol % impurities, wherein 0@a@0.9, 0@b@0.2, 0.05@c@0.2, -1@d@+1, 0@e@3, M is one or more of the elements Ce, Pr and Nd, T is one or more of the elements Co, Ni, Mn and Cr, Y is one or more of the elements Si, Al, As, Ga, Ge, Sn and Sb and X is one or more of the elements H, B, C, N, Li and Be. The magnetic article comprises a permanent magnet.
189	RARE EARTH PERMANENT MAGNET	MYPI20060340	2006-01-25	MY142024A	2010-08-16	NAKAMURA HAJIME; HIROTA KOICHI; SHIMAO MASANOBU; MINOWA TAKEHISA
A RARE EARTH PERMANENT MAGNET IS IN THE FORM OF A SINTERED MAGNET BODY HAVING A COMPOSITION R1aR2bTcAdFeOfMg WHEREIN F AND R2 ARE DISTRIBUTED SUCH THAT THEIR CONCENTRATION INCREASES ON THE AVERAGE FROM THE CENTER TOWARD THE SURFACE OF THE MAGNET BODY, AND GRAIN BOUNDARIES HAVING A CONCENTRATION OF R2/(R1+R 2 )WHICH IS ON THE AVERAGE HIGHER THAN THE CONCENTRATION OF R2/ (R1+R 2 ) CONTAINED IN PRIMARY PHASE GRAINS OF (R1,R2)2T14A TETRAGONAL SYSTEM FORM A THREE-DIMENSIONAL NETWORK STRUCTURE WHICH IS CONTINUOUS FROM THE MAGNET BODY SURFACE TO A DEPTH OF AT LEAST 10 UM. THE INVENTION PROVIDES R-FE-B SINTERED MAGNETS WHICH EXHIBIT A HIGH COERCIVE FORCE.
190		DE69940976	1999-10-25	DE69940976D1	2009-07-23	GONG WEI; MA BAO-MIN

191		DE60131561	2001-09-25	DE60131561T2	2008-03-06	MURAKAMI RYO; KANEKIYO HIROKAZU; HIROSAWA SATOSHI
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 Fe 100-x-y-z R x Q y M z (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<6 at%, 15 at%‰¦y‰¦30 at% and 0 at%‰¦z‰¦7 at%) is prepared. This molten alloy is rapidly cooled by a strip casting process in which the alloy is fed onto a chill roller, rotating at a peripheral velocity of 3 m/s to less than 20 m/s, at a feeding rate per unit contact width of 0.2 kg/min/cm to 5.2 kg/min/cm. In this manner, an alloy including at least 60 volume percent of amorphous phase can be obtained.
192		DE60131561	2001-09-25	DE60131561D1	2008-01-03	MURAKAMI RYO; KANEKIYO HIROKAZU; HIROSAWA SATOSHI
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 Fe 100-x-y-z R x Q y M z (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<6 at%, 15 at%‰¦y‰¦30 at% and 0 at%‰¦z‰¦7 at%) is prepared. This molten alloy is rapidly cooled by a strip casting process in which the alloy is fed onto a chill roller, rotating at a peripheral velocity of 3 m/s to less than 20 m/s, at a feeding rate per unit contact width of 0.2 kg/min/cm to 5.2 kg/min/cm. In this manner, an alloy including at least 60 volume percent of amorphous phase can be obtained.
193	РЕДКОЗЕМЕЛЬНЫЙ ПОСТОЯННЫЙ МАГНИТ	RU2006103678	2006-02-08	RU2006103678A	2007-08-20

194		DE60215665	2002-07-19	DE60215665D1	2006-12-07	MIYOSHI TOSHIO; KANEKIYO HIROKAZU; HIROSAWA SATOSHI
Iron-based rare earth alloy nanocomposite magnetic powder is produced by an atomization method, and contains >=2 ferromagnetic crystal phases. The average size of the hard crystal phase is 10-200nm and the average size of the soft magnetic phase is 1-100nm. The powder has the composition (Fe 1-mT m) 100-x-y-z-nQ xR yTi zM n. T : Co and/or Ni; Q : B and/or C; R : rare earth metal and/or yttrium; M : Nb, Zr, Mo, Ta and/or Hf; x : 10-25 atom%; y : 6-10 atom%; z : 0.1-12 atom%; m : 0-0.5; n : 0-10 atom%. Independent claims are also included for (1) a bonded magnet containing the powder; (2) the manufacture of the powder; and (3) the manufacture of the bonded magnet.
195	NANOCOMPOSITE MAGNET AND METHOD FOR PRODUCING SAME	MYPI20015220	2001-11-13	MY127175A	2006-11-30	HIROKAZU KANEKIYO; TOSHIO MIYOSHI; SATOSHI HIROSAWA
A METHOD OF MAKING A MATERIAL ALLOY FOR AN IRON-BASED RARE EARTH MAGNET INCLUDES THE STEP OF FORMING A MELT (3) OF AN ALLOY WITH A COMPOSITION OF (FEL-M TM) L00-X-Y-Z-N (BL-PCP) XRY TIZMN. 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 A1, 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 < X < 25 AT%, *6 < Y < 10 AT %, 0.5 < Z < 12 AT%, 0 < M < 0.5, 0 < N < 10 AT% AND 0 < P < 0.25. NEXT, THE MELT (3) IS FED ONTO A SHOOT (5) WITH A GUIDE SURFACE TILTED AT ABOUT 1 DEGREE TO ABOUT 80 DEGREES WITH RESPECT TO A HORIZONTAL PLANE, THEREBY MOVING THE MELT (3) ONTO A MELT/ROLLER CONTACT REGION.THE MELT (3) IS THEN RAPIDLY COOLED USING A CHILL ROLLER (7) TO MAKE A RAPIDLY SOLIDIFIED ALLOY INCLUDING AN R2FE14B PHASE.(FIG 1)
196	PERMANENT MAGNET INCLUDING MULTIPLE FERROMAGNETIC PHASES AND METHOD FOR PRODUCING THE MAGNET	MYPI20012462	2001-05-24	MY125006A	2006-07-31	HIROKAZU KANEKIYO; TOSHIO MIYOSHI; SATOSHI HIROSAWA; YASUTAKA SHIGEMOTO; YUSUKE SHIOYA
AN IRON-BASED RARE EARTH ALLOY MAGNET HAS A COMPOSITION REPRESENTED BY THE GENERAL FORMULA: (FE?-M TM) 100-X-Y-Z QXRYMZ, WHERE T IS AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTING OF B AND C; R IS AT LEAST ONE RARE EARTH ELEMENT SUBSTANTIALLY EXCLUDING LA AND CE; AND M IS AT LEAST ONE METAL ELEMENT SELECTED FROM THE GROUP CONSISTING OF Ti, Zr AND Hf AND ALWAYS INCLUDES Ti. IN THIS FORMULA, THE MOLE FRACTIONS X,Y,Z AND M MEET THE INEQUALITIES OF : 10 AT%< X? 20 AT%; 6 AT%? Y < 10 AT%; 0.1 AT? Z ? 12 AT%; AND 0 ? M ? 0.5, RESPECTIVELY.(FIGURE 4)
197		AT01123787	2001-10-04	AT327561T	2006-06-15	KANEKO YUJI; TANIGUCHI KATSUYA; SEKINO TAKAO
The present invention provides a rare-earth sintered magnet exhibiting desirable magnetic properties in which the amount of Nd and/or Pr forming a non-magnetic phase in a grain boundary phase is reduced. Specifically, the present invention provides a rare-earth sintered magnet having a composition of (R1x+R2y)T100-x-y-zQz where R1 is at least one element selected from the group consisting of all rare-earth elements excluding La (lanthanum), Y (yttrium) and Sc (scandium); R2 is at least one element selected from the group consisting of La, Y and Sc; T is at least one element selected from the group consisting of all transition elements; Q is at least one element selected from the group consisting of B and C, and including, as a main phase, a crystal grain of an Nd2Fe14B crystalline structure, wherein: molar fractions x, y and z satisfy 8≤ x≤ 18 at%, 0.1≤ y≤ 3.5 at% and 3≤ z≤ 20 at%, respectively; and a concentration of R2 is higher in at least a part of a grain boundary phase than in the main phase crystal grains.
198	Hard magnetic composition, permanent magnet powder, method for permanent magnet powder, and bonded magnet	HK06104245	2006-04-07	HK1082318A1	2006-06-02	SAKAMOTO ATSUSHI; NAKANE MAKOTO; NAKAMURA HIDEKI; FUKUNO AKIRA
A single phase consisting of a ThMn12 phase can be obtained by having the composition thereof represented by a general formula R(Fe100-y-wCowTiy)xSizAv (in the general formula, R is at least one element selected from rare earth elements (here the rare earth elements signify a concept inclusive of Y), Nd accounts for 50 mol% or more of R, and A is N and/or C) in which the molar ratios in the general formula are such that x = 10 to 12.5, y = (8.3 - 1.7 x z) to 12.3, z = 0.1 to 2.3, v = 0.1 to 3 and w = 0 to 30, and the relation (Fe + Co + Ti + Si)/R > 12 is satisfied.
199		DE60117205	2001-09-18	DE60117205D1	2006-04-20	TOMIZAWA HIROYUKI; KANEKO YUJI
Magnetic alloy powder for a permanent magnet contains: R of about 20 mass percent to about 40 mass percent (R is Y, or at least one type of rare earth element); T of about 60 mass percent to about 79 mass percent (T is a transition metal including Fe as a primary component); and Q of about 0.5 mass percent to about 2.0 mass percent (Q is an element including B (boron) and C (carbon)). The magnetic alloy powder is formed by an atomize method, and the shape of particles of the powder is substantially spherical. The magnetic alloy powder includes a compound phase having Nd2Fe14B tetragonal structure as a primary composition phase. A ratio of a content of C to a total content of B and C is about 0.05 to about 0.90.
200		DE60205728	2002-02-06	DE60205728D1	2005-09-29	KANEKIYO HIROKAZU; KITAYAMA HIROKAZU; HIROSAWA SATOSHI; MIYOSHI TOSHIO
An iron-based rare-earth alloy powder includes: a first iron-based rare-earth alloy powder, which has a mean particle size of 10 mu m to 70 mu m and of which the powder particles have aspect ratios of 0.4 to 1.0; and a second iron-based rare-earth alloy powder, which has a mean particle size of 70 mu m to 300 mu m and of which the powder particles have aspect ratios of less than 0.3. The first and second iron-based rare-earth alloy powders are mixed at a volume ratio of 1:49 to 4:1. In this manner, an iron-based rare-earth alloy powder with increased flowability and a compound to make a magnet are provided.

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