公开(公告)号：EP1511046A1

公开(公告)日：2005-03-02

申请号：EP03812349.3

申请日：2003-11-28

申请人： Neomax Co., Ltd.

发明人： YOSHIMURA, Koshi ,  OTANI, Tomoiku

IPC分类号： H01F41/02 ,  C23C26/00 ,  B05C11/08 ,  B05C13/02

CPC分类号： H01F1/0577 ,  B05C3/09 ,  B05C13/02 ,  C23C2/04 ,  C23C2/26 ,  C23C24/08 ,  C23C24/10 ,  C23C26/00 ,  C23C26/02 ,  H01F1/0578 ,  H01F1/059 ,  H01F41/026 ,  Y10T428/12063 ,  Y10T428/12465 ,  Y10T428/325

摘要： The objectives of the present invention are to provide a stable and simple method for producing a rare earth metal-based permanent magnet having on the surface thereof a corrosion-resistant film containing fine zinc particles dispersed therein, a corrosion-resistant rare earth metal-based permanent magnet produced by the method, a dip spin coating method being suitable for forming a coating film on thin type work pieces having various shapes, and a method for forming a coating film on a work piece. A method for producing a corrosion-resistant rare earth metal-based permanent magnet of the present invention, characterized in that it comprises providing an aqueous treating fluid, which contains a hydrolysis polymerization product of alkyl silicate and fine zinc particles having an average particle diameter of 1 µm to 50 µm and has a pH value of 6 to 8 and a viscosity of 1000 cP or less, applying the fluid on the surface of a rare earth metal-based permanent magnet, and subjecting the resultant magnet to a heat treatment at 250°C to 400°C, to thereby form a corrosion-resistant film containing fine zinc particles dispersed therein.

摘要翻译： 本发明的目标是提供一种制备具有在其表面上分散有耐腐蚀膜含锌微粒，具有耐腐蚀稀土金属为基础上的，稀土金属基永磁铁提供稳定的和简单的方法 由该方法产生永久磁铁，浸渍旋涂法适于形成具有各种形状的涂膜上薄型工件，以及用于形成涂膜在工件上的方法。 一种用于制造本发明的耐腐蚀的稀土类金属 - 永久磁铁的制造方法，其特征在于在没有它包括wässrige提供处理流体，其中含有硅酸烷基酯和锌微粒具有上的平均粒径的水解聚合产物 1微米至50微米，并具有6的pH值至8和1000厘泊或更小的粘度，在施加流体的稀土土金属基永磁铁的表面上，和使所生成磁体进行热处理 在250℃至400℃，从而形成其中分散有耐腐蚀膜含锌微粒。

公开(公告)号：EP1447823A4

公开(公告)日：2005-03-02

申请号：EP02781811

申请日：2002-11-18

申请人： NEOMAX CO LTD

发明人： NISHIUCHI TAKESHI ,  KANEKIYO HIROKAZU ,  HIROSAWA SATOSHI ,  MIYOSHI TOSHIO

IPC分类号： B22F9/04 ,  B22F1/00 ,  B22F3/00 ,  C22C1/04 ,  C22C38/00 ,  C22C38/14 ,  H01F1/053 ,  H01F1/057 ,  H01F1/08 ,  H01F1/04

CPC分类号： B82Y25/00 ,  B22F2998/10 ,  C22C1/0441 ,  C22C38/005 ,  C22C38/14 ,  H01F1/0578 ,  H01F1/0579 ,  B22F9/008 ,  B22F9/04 ,  B22F9/007

摘要： A compound for a rare earth element based bonded magnet containing a rare earth element powder and a binding agent, characterized in that the rare earth element powder comprises, in an amount of 2 mass % or more, Ti-containing nanocomposite magnet powdery particles which have a composition represented by the empirical formula: (Fe1-mTm)100-x-y-z QxR yMz wherein T is at least one element selected from the group consisting of Co and Ni, Q is at least one element being selected from the group consisting of B and C and including B, R is at least one rare earth element not including La nor Ce, M is at least one metal element being selected from the group consisting of Ti, Zr and Hf and including Ti, and x, y, z and m respectively satisfy 10

公开(公告)号：EP1494250A1

公开(公告)日：2005-01-05

申请号：EP03730855.8

申请日：2003-06-06

申请人： Neomax Co., Ltd.

发明人： FUKUZUMI, Masafumi ,  KANEKO, Yuji

IPC分类号： H01F1/04

CPC分类号： H01F41/0273 ,  H01F1/0577 ,  H01F1/058

摘要： A rare-earth sintered magnet with excellent corrosion resistance and sinterability and a method for producing such a magnet are provided. The rare-earth sintered magnet includes an R 2 T 14 Q type tetragonal compound (where R is at least one rare-earth element, T is at least one transition metal element always including Fe, and Q is boron and/or carbon) as a main phase and a grain boundary phase surrounding the main phase. The R 2 T 14 Q type tetragonal compound as the main phase includes Cr, which substitutes for a portion of Fe, and carbon, which substitutes for a portion of boron, as respective essential elements. The concentration of carbon in the main phase is higher than that of carbon in the grain boundary phase.

公开(公告)号：EP1189244B1

公开(公告)日：2004-12-29

申请号：EP01122290.8

申请日：2001-09-18

申请人： Neomax Co., Ltd.

发明人： Kuniyoshi, Futoshi ,  Morimoto, Hitoshi

IPC分类号： H01F1/057

CPC分类号： H01F1/0557 ,  H01F1/0573 ,  H01F1/0577 ,  H01F41/0266

公开(公告)号：EP1371434A4

公开(公告)日：2004-10-13

申请号：EP02711353

申请日：2002-02-06

申请人： NEOMAX CO LTD

发明人： KANEKIYO HIROKAZU ,  KITAYAMA HIROKAZU ,  HIROSAWA SATOSHI ,  MIYOSHI TOSHIO

IPC分类号： B22F1/00 ,  B22F3/00 ,  B22F3/02 ,  B22F3/22 ,  B22F7/08 ,  C22C1/04 ,  C22C33/02 ,  C22C38/00 ,  H01F1/053 ,  H01F1/057 ,  H01F1/058 ,  H01F1/06 ,  H01F1/08 ,  B22F9/04

CPC分类号： B22F3/225 ,  B22F7/08 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0441 ,  C22C33/0207 ,  H01F1/0571 ,  H01F1/0578 ,  H01F1/058 ,  B22F9/008 ,  B22F9/04 ,  B22F1/0003 ,  B22F3/22

摘要： An iron base rare earth alloy powder which comprises a first iron base rare earth alloy powder having an average particle diameter of 10 νm to 70 νm and having an aspect ratio of a particle thereof of 0.4 to 1.0 and a second iron base rare earth alloy powder having an average particle diameter of 70 νm to 300 νm and having an aspect ratio of a particle thereof of less than 0.3, wherein the above first iron base rare earth alloy powder and the above second iron base rare earth alloy powder is mixed in a mixing ratio within the range of 1.49 to 4.1. The above powder exhibits improved fluidity and can be used for providing a magnet compound having high fluidity.

公开(公告)号：EP1457998A1

公开(公告)日：2004-09-15

申请号：EP02786145.9

申请日：2002-12-18

申请人： Neomax Co., Ltd.

发明人： TOMIZAWA, Hiroyuki ,  KANEKO, Yuji

IPC分类号： H01F1/06 ,  H01F1/04 ,  C22C38/00 ,  B22F9/08 ,  B22F1/00 ,  B22F3/00

CPC分类号： C22F1/16 ,  B22F2998/00 ,  C22C1/0441 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/14 ,  H01F1/0573 ,  H01F1/0578 ,  H01F41/0266 ,  Y10T428/12472 ,  B22F9/023

摘要： A method of making a magnetically anisotropic magnet powder according to the present invention includes the steps of preparing a master alloy by cooling a rare-earth-iron-boron based molten alloy and subjecting the master alloy to an HDDR process. The step of preparing the master alloy includes the step of forming a solidified alloy layer, including a plurality of R 2 Fe 14 B-type crystals (where R is at least one element selected from the group consisting of the rare-earth elements and yttrium) in which rare-earth-rich phases are dispersed, by cooling the molten alloy through contact with a cooling member.

摘要翻译： 使具有磁性各向异性的磁铁粉末gemäß到本发明的方法包括通过冷却系稀土类 - 铁 - 硼合金熔融并在HDDR处理对所述母合金制备母合金的步骤。 制备母合金的步骤包括形成一个凝固的合金层，其中包括的R2Fe14B型晶体（其中，R是选自稀土类元素和钇中选择的至少一种元素），其中罕见的多个步骤 富-Earth相分散，通过与冷却构件接触冷却所述熔融合金。

公开(公告)号：EP1953123A1

公开(公告)日：2008-08-06

申请号：EP06728923.1

申请日：2006-03-10

申请人： Neomax Co., Ltd.

发明人： TAKAMI, Takashi ,  IWASAKI, Hiroshi ,  MOCHI, Naoki

IPC分类号： C04B35/40 ,  C04B35/26 ,  H01F1/11

CPC分类号： H01F1/11 ,  C04B35/2633 ,  C04B35/2641 ,  C04B35/6262 ,  C04B35/6268 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/5292 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5463 ,  C04B2235/605 ,  C04B2235/656 ,  C04B2235/6585 ,  C04B2235/72 ,  C04B2235/767 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/788 ,  H01F41/0273 ,  Y10T428/2982

摘要： A sintered ferrite magnet having an M-type ferrite structure and comprising Ca, an R element which is at least one rare earth element indispensably including La, Ba, Fe and Co as indispensable elements, which is represented by Ca 1-x-y R x Ba y Fe 2n-z Co z , wherein (1-x-y), x, y, z and n are numbers representing the amounts of Ca, the R element, Ba and Co and a molar ratio, meeting 0.2 ≤ x ≤ 0.65, 0.001 ≤ y ≤ 0.2, 0.03 ≤ z ≤ 0.65, and 4 ≤ n ≤ 7.

摘要翻译： 一种具有M型铁氧体结构并包含Ca，R元素的烧结铁氧体磁体，其是至少一种不可或缺的包含La，Ba，Fe和Co的稀土元素作为不可缺少的元素，由Ca 1-xy R x Ba y Fe 2n-z Co z，其中（1-xy），x，y，z和n是表示Ca，R元素，Ba和Co的量和摩尔比的数字，满足0.2‰x‰0.65，0.001 ‰‰0.2，0.03‰z‰0.65，‰‰7。

公开(公告)号：EP1329912B1

公开(公告)日：2008-06-25

申请号：EP01984520.5

申请日：2001-07-30

申请人： Neomax Co., Ltd.

发明人： YAMASHITA, Osamu ,  MAKITA, Ken

IPC分类号： H01F10/12 ,  H01F1/04 ,  C23C14/14 ,  H01F10/32 ,  H01F41/30

CPC分类号： H01F10/3222 ,  B82Y25/00 ,  B82Y40/00 ,  C23C14/00 ,  C23C14/16 ,  H01F10/007 ,  H01F10/126 ,  H01F10/28 ,  H01F10/3227 ,  H01F41/302 ,  Y10T428/1129 ,  Y10T428/115 ,  Y10T428/12861 ,  Y10T428/12868 ,  Y10T428/12875 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/24975 ,  Y10T428/32 ,  Y10T428/325

摘要： A thin film rare earth permanent magnet capable of making the thin film by vapor growth anisotropic ina lamination direction, and a method for manufacturing the permanent magnet. There are repeated a number of operations to form atomic laminate units (13) by laminating a monoatomic layer (10) of a rare earth element on a substrate (1) of a non-magnetic material having a flat smoothness and then by laminating an atomic laminate (12) of a transient metal element having a plurality of monoatomic layers (11) of a transient metal element, so that the atomic laminate units (13) of a characteristic construction are laminated in a plurality of layers. As a result, each atomic laminate (12) has an easily magnetizable axis in the laminate direction of the monoatomic layers (11), and is sandwiched between the monoatomic layers (10, 10) of the rare earth element so that an inverse magnetic domain is suppressed to establish a strong coercive force. Moreover, the content of the transient metal element to the rare earth metal is raised to improve the residual magnetic flux density drastically.

公开(公告)号：EP1052658A4

公开(公告)日：2007-12-05

申请号：EP99972773

申请日：1999-11-25

申请人： NEOMAX CO LTD

发明人： TOYOTA SACHIO ,  HOSOKAWA SEIICHI ,  ANAMOTO SHUJI ,  FURUCHI ISAMU

IPC分类号： C01G49/00 ,  C01G51/00 ,  C04B35/26 ,  H01F1/11

CPC分类号： H01F1/113 ,  C01G49/0018 ,  C01G49/009 ,  C01G51/006 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/42 ,  C04B35/2633 ,  C04B35/2641 ,  C04B35/62645 ,  C04B35/62675 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3227 ,  C04B2235/3274 ,  C04B2235/3275 ,  C04B2235/3418 ,  C04B2235/5445 ,  C04B2235/76 ,  C04B2235/767 ,  C04B2235/786 ,  H01F41/0273

摘要： A La-Co ferrite magnet powder wherein Sr is substituted with La and Fe is substituted with Co, which may be obtained by performing a calcination at a temperature higher than 1300 DEG C and not higher than 1450 DEG C, characterized in that Co atoms substitute for Fe atoms having the magnetic moment having a direction, wherein a greater number of sites are present, of the magnetic moments of Fe which are present in upward direction or downward direction along C axis of a crystal. Such substitution of Co atoms for Fe atoms results in the high coercive force of a magnet. Thus, the ferrite magnet powder allows a magnet prepared therefrom to exhibit an improved high coercive force while suppressing the decrease of saturation magnetization sigma s.

公开(公告)号：EP1338359B1

公开(公告)日：2007-11-21

申请号：EP01967835.8

申请日：2001-09-25

申请人： Santoku Corporation ,  Neomax Co., Ltd.

发明人： MURAKAMI, Ryo ,  KANEKIYO, Hirokazu ,  HIROSAWA, Satoshi

IPC分类号： B22D11/06 ,  B22F9/04 ,  B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  C22C45/02 ,  C21D6/00 ,  H01F1/04 ,  G01N33/20

CPC分类号： C22C45/02 ,  B22D11/0611 ,  B82Y25/00 ,  C21D2201/03 ,  H01F1/0571 ,  H01F1/0579 ,  H01F1/058

摘要： 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 Fe¿100-x-y-z?RxQyMz (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