公开(公告)号：US5660929A

公开(公告)日：1997-08-26

申请号：US154393

申请日：1993-11-18

申请人： Takao Suzuki ,  Masato Sagawa

发明人： Takao Suzuki ,  Masato Sagawa

IPC分类号： G11B5/64 ,  G11B5/66 ,  B32B33/00

CPC分类号： G11B5/656 ,  G11B5/64 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/26 ,  Y10T428/265

摘要： A perpendicular magnetic recording medium is fabricated based on R.sub.21-60 (Fe.sub.1-y Co.sub.y).sub.z M.sub.0-10 wherein z is balance and at least 70 at % of R is Nd and/or Pr, the balance of R being one or more of other rare earth elements, and wherein y is less than 0.5 by atomic ratio. M is at least one of various additional metal elements. The Curie temperature Tc is between 70.degree. to 250.degree. C.; the saturation magnetization Ms is about 450 emu/cc or more; the uniaxial perpendicular magnetic anisotropy constant Ku of 2.5.times.10.sup.6 erg/cc or more is attained. Kerr rotation angle is 0.3 degree or more, which provides a magneto-optic recording medium. Since light rare earth elements having the collinear alignment of magnetic moment with Fe are used as a key element, it is possible to fabricate uniform perpendicular magnetic anisotropy thin films in a mass production scale at a low cost.

摘要翻译： 基于R21-60（Fe1-yCoy）zM0-10制造垂直磁记录介质，其中z为余量，R为至少70原子％为Nd和/或Pr，其余R为其中一种或多种稀有金属 土元素，其中y按原子比小于0.5。 M是各种附加金属元素中的至少一种。 居里温度Tc为70〜250℃。 饱和磁化强度Ms约为450emu / cc以上; 获得2.5×10 6 erg / cc以上的单轴垂直磁各向异性常数Ku。 克尔旋转角度为0.3度以上，其提供磁光记录介质。 由于将具有磁矩与Fe的共线对准的轻稀土元素用作关键元件，所以可以以低成本大规模生产均匀的垂直磁各向异性薄膜。

公开(公告)号：US07354621B2

公开(公告)日：2008-04-08

申请号：US10559435

申请日：2004-06-02

申请人： Osamu Itatani ,  Masato Sagawa

发明人： Osamu Itatani ,  Masato Sagawa

IPC分类号： B05D5/10 ,  B05D1/28

CPC分类号： B05D1/28 ,  B05C3/05 ,  B05C3/08 ,  B05C9/02 ,  B05D1/22 ,  B05D5/10 ,  B05D2258/00 ,  C09J7/38

摘要： In a method for forming an adhesive layer on the surface of a workpiece before the formation of a coating film containing a powder on the workpiece, the present invention provides a method for forming the adhesive layer having a desired thickness. This object is achieved by the following method: An adhesive layer formation medium m1 coated with an adhesive material is made to collide with a workpiece W so that the adhesive material is transferred from the adhesive layer formation medium m1 to the workpiece W and forms an adhesive layer on the workpiece. An adhesive layer having a desired thickness can be formed on the workpiece by regulating the thickness of the adhesive material applied to the surface of the adhesive layer formation medium (i.e. the amount of the adhesive material held by a single adhesive layer formation medium). This enables the thickness of the powder coating as the final product to be controlled as desired.

摘要翻译： 在形成在工件上含有粉末的涂膜之前在工件表面上形成粘合剂层的方法中，本发明提供了形成具有所需厚度的粘合剂层的方法。 该目的通过以下方法实现：使涂覆有粘合剂材料的粘合层形成介质m 1与工件W碰撞，使得粘合剂材料从粘合剂层形成介质m 1转移到工件W并形成 工件上的粘合剂层。 可以通过调节施加在粘合剂层形成介质的表面上的粘合剂材料的厚度（即，由单一的粘合剂层形成介质保持的粘合剂材料的量），在工件上形成具有所需厚度的粘合剂层。 这使得根据需要可以控制作为最终产品的粉末涂料的厚度。

公开(公告)号：US06764643B2

公开(公告)日：2004-07-20

申请号：US10054954

申请日：2002-01-25

申请人： Masato Sagawa ,  Tochihiro Watanabe ,  Hiroshi Nagata

发明人： Masato Sagawa ,  Tochihiro Watanabe ,  Hiroshi Nagata

IPC分类号： B22F100

CPC分类号： B30B15/302 ,  B30B11/00

摘要： A powder compaction method in which a powder p is filled by air tapping or other suitable method into a mold 1, then while the mold 1 being filled with the powder, the powder particles are bound with each other without application of force from outside the mold to form a compact C, and then the compact C is taken out from the mold 1. This method produces a variety of shapes of the compact far greater than in conventional methods, and net shape manufacturing of products with complex shapes is made possible by this method. Because this method uses far less binder compared to MIM and PIM that are expected as methods for producing products with complicated shapes, the time needed for elimination of the binder is much shorter than in MIM and PIM.

摘要翻译： 粉末压制方法，其中粉末p通过空气攻丝或其它合适的方法填充到模具1中，然后当模具1填充粉末时，粉末颗粒彼此结合，而不受模具外部的力 以形成紧凑的C，然后将紧凑的C从模具1中取出。该方法产生远远大于常规方法的多种形状的紧凑形状，并且通过这种方式可以实现具有复杂形状的产品的净形状制造 方法。 由于与MIM和PIM相比，该方法使用的粘合剂远远少于生产具有复杂形状的产品的方法，所以消除粘合剂所需的时间比MIM和PIM短得多。

公开(公告)号：US5725816A

公开(公告)日：1998-03-10

申请号：US712543

申请日：1996-09-11

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Toshihiro Watanabe ,  Terumasa Miyoshi ,  Mizuho Kasahara

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Toshihiro Watanabe ,  Terumasa Miyoshi ,  Mizuho Kasahara

IPC分类号： B22F3/00 ,  B30B11/02 ,  B30B15/30 ,  B29C43/14

CPC分类号： B30B15/024 ,  B22F3/004 ,  B30B11/027 ,  B30B15/302

摘要： The present invention relates to a packing method in which a material (p) is fed into a space comprising an opening (4c) for feeding the material and a space (4d) to be packed with said material, and said space is subjected to air tapping, that is, switching of air-pressure from a low air-pressure state to a high air-pressure state alternately, thereby packing the material into the space (4d) at a high packing-density. The use of air tapping for packing a material into a space makes the packing-density of the material uniform.

摘要翻译： 本发明涉及一种包装方法，其中将材料（p）进料到包括用于供给材料的开口（4c）和用于填充材料的空间（4d）的空间中，并且所述空间经受空气 也就是说，空气压力从低空气压力状态交替地转换到高空气压力状态，从而以高填充密度将材料包装到空间（4d）中。 使用空气攻丝将材料包装在一个空间内使得材料的填充密度均匀。

公开(公告)号：US5250255A

公开(公告)日：1993-10-05

申请号：US800356

申请日：1991-12-02

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Hiroo Shirai

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Hiroo Shirai

IPC分类号： B22F3/00 ,  B22F3/02 ,  B22F3/12 ,  B22F3/22 ,  B30B11/00 ,  B30B11/02 ,  B30B15/02 ,  B30B15/30 ,  H01F41/02

CPC分类号： B22F3/225 ,  B22F3/003 ,  B22F3/004 ,  B22F3/02 ,  B22F3/1233 ,  B22F3/22 ,  B30B11/008 ,  B30B11/02 ,  B30B11/027 ,  B30B15/024 ,  B30B15/302 ,  H01F41/0266 ,  B22F2003/026 ,  B22F2998/00 ,  B22F2999/00 ,  B29C2043/046 ,  B29C2043/3494 ,  B29C2043/3652 ,  B29C2043/3689 ,  B29C43/34 ,  B29C43/361

摘要： Green compacts for sintered ceramic bodies and for sintered permanent magnets are produced by first preparing outside a die press machine a mold which contains a rubber portion in at least a side portion. The mold cavity is then filled with the fine powder which is to form the compact to a density which is at least 1.2 times the natural filling density of the powder. The filled rubber mold is then placed in the die press machine and compacted in the die press machine to produce the green compact. The natural filling density is obtained by allowing the powder to fall from a powder pan into the rubber mold until the powder reaches the top of the rubber mold, where the distance from the powder pan to the bottom of the rubber mold is 3.7 times the depth of the cavity of the rubber mold.

公开(公告)号：US5194098A

公开(公告)日：1993-03-16

申请号：US876902

申请日：1992-04-30

申请人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

发明人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

IPC分类号： C22C1/04 ,  H01F1/057

CPC分类号： H01F1/057 ,  C22C1/0441 ,  H01F1/0577

摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of an Fe-B-R intermetallic compound which may be a tetragonal system, wherein at least 50 at % of R consists of Nd and/or Pr, and anisotropic sintered permanent magnets consisting essentially of 8-30 at % R, 2028 at %, B and the balance being Fe with impurities. These magnetic materials and permanent magnets may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf), thus providing Fe-B-R-M type materials and magnets.

摘要翻译： Fe，B和R（稀土元素）的磁性材料，其具有可以是四方晶系的Fe-BR金属间化合物的主相，其中至少50原子％的R由Nd和/或Pr组成，并且各向异性烧结 基本上由8-30at％R，2028at％，B组成的永磁体，余量为Fe和杂质。 这些磁性材料和永磁体可以含有附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf） 型材和磁铁。

公开(公告)号：US5123979A

公开(公告)日：1992-06-23

申请号：US617648

申请日：1990-11-26

申请人： Philippe Tenaud ,  Fernand Vial ,  Masato Sagawa

发明人： Philippe Tenaud ,  Fernand Vial ,  Masato Sagawa

IPC分类号： C22C1/04 ,  B22F9/02 ,  C21D6/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  H01F1/053 ,  H01F1/057 ,  H01F7/02

CPC分类号： C22C38/10 ,  B22F9/023 ,  H01F1/057 ,  H01F1/0577

摘要： The invention relates to Fe Nd B type alloys for permanent magnets, the permanent magnets thus obtained and a method of producing them.They have high magnetic characteristics with good temperature resistance and good resistance to atmospheric corrosion.They comprise, in at%, 12 to 18% of rare earths, 3 to 30% of Co, 5.9 to 12% of B, 2 to 10% of V, some Al and Cu, the remainder being iron and unavoidable impurities. The V can be substituted by other refractory elements (Nb, W, Cr, Mo, Ti, Zr, Hf, Ta).The method mainly involves sintering at between 1050 and 1110.degree. C. followed by annealing at between 850 and 1050.degree. C. and/or artificial ageing at between 560.degree. C. and 850.degree. C.

摘要翻译： 本发明涉及用于永磁体的Fe Nd B型合金，由此获得的永磁体及其制造方法。 它们具有高磁特性，耐温性好，耐大气腐蚀性好。 它们以％计含有12至18％的稀土，3至30％的Co，5.9至12％的B，2至10％的V，一些Al和Cu，其余为铁和不可避免的杂质。 V可以被其他难熔元素（Nb，W，Cr，Mo，Ti，Zr，Hf，Ta）取代。 该方法主要包括在1050和1110℃之间进行烧结，然后在850至1050℃之间进行退火和/或在560℃至850℃之间的人工时效。

公开(公告)号：US5000800A

公开(公告)日：1991-03-19

申请号：US321183

申请日：1989-03-09

申请人： Masato Sagawa

发明人： Masato Sagawa

IPC分类号： C22C1/04 ,  H01F20060101 ,  H01F1/057

CPC分类号： C22C1/0441 ,  H01F1/0577

摘要： An Nd-Fe-B sintered magnet which has 0.5 %/.degree.C. or more of temperature-coefficient of coercive force (iHc) and a composition that R=11-18 at % (R is one or more rare-earth elements except for Dy, with the proviso of 80 at % .ltoreq.(Nd+Pr)/R.ltoreq.100 at %), B=6-12 at %, and balance of Fe and Co (with the proviso of Co is 25 at % or less relative to the total of Co and Fe (including 0 % of Co)) and impurities, is improved to have 15 kOe or more of coercive force (iHc) by means of further containing 2-6 at % of V and modifying the minority phase such that B in excess of a stoichiometric composition of R.sub.2 Fe.sub.14 B compound-phase essentially does not form RFe.sub.4 B.sub.4 -compound minority phase but forms a finely dispersed V-T-B compound minority phase (T is fe, and in a case of containing Co, T is Fe and Co).

公开(公告)号：US4770723A

公开(公告)日：1988-09-13

申请号：US13165

申请日：1987-02-10

申请人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

发明人： Masato Sagawa ,  Setsuo Fujimura ,  Yutaka Matsuura

IPC分类号： C22C1/04 ,  H01F1/057 ,  H01F1/04

CPC分类号： C22C1/0441 ,  H01F1/057 ,  H01F1/0577

摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of Fe--B--R intermetallic compound(s) of tetragonal system, and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8-30% R (at least one of rare earth elements inclusive of Y), 2-28% B and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe--B--R--M type materials and magnets.

摘要翻译： 包含具有四方晶系的Fe-BR金属间化合物的主相的Fe，B和R（稀土元素）的磁性材料和基本上由原子百分比组成的烧结各向异性永久磁体，其含量为8-30％R 至少一种稀土元素包括Y），2-28％B，余量为Fe与杂质。 这些可以含有Fe-B-R-M型材料和磁铁的附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。

公开(公告)号：US4710242A

公开(公告)日：1987-12-01

申请号：US871175

申请日：1986-06-03

申请人： Wataru Yamagishi ,  Masato Sagawa

发明人： Wataru Yamagishi ,  Masato Sagawa

IPC分类号： C22C19/07 ,  G01K7/02 ,  G01K7/36 ,  G03G5/16 ,  H01F1/055 ,  H01F1/057 ,  H01L37/04 ,  H01F1/04

CPC分类号： H01F1/057 ,  G03G5/16 ,  H01F1/055

摘要： Ferromagnetic material for temperature sensitive elements or parts has a direction of easy magnetization which varies depending upon temperature. The material has the formula:Nd.sub.1-u R.sub.u (Co.sub.1-x M.sub.x).sub.zwherein R is one or more rare earth elements, M is at least one element selected from the group consisting of B, Al, Si, Ti, V, Cr, Mn, Fe, Ni, Cu, Zr, Nb, Ta, Mo, W, Hf, Pd, Sn and Pb, 0.ltoreq.u.ltoreq.0.5, 0

摘要翻译： 用于温度敏感元件或部件的铁磁材料具有随温度变化的容易磁化的方向。 该材料具有下式：Nd1-uRu（Co1-xMx）z其中R是一种或多种稀土元素，M是选自B，Al，Si，Ti，V，Cr，Mn中的至少一种元素 ，Fe，Ni，Cu，Zr，Nb，Ta，Mo，W，Hf，Pd，Sn和Pb，0 <0.5，0