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41. 发明专利

JP2009070857A Insular magnetic thin film and method of manufacturing the same 审中-公开
标题翻译：绝缘磁薄膜及其制造方法
公开(公告)号：JP2009070857A
公开(公告)日：2009-04-02
申请号：JP2007234579
申请日：2007-09-10
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： SATO TAKESHI , SHIMA TOSHIYUKI , SHOJI TETSUYA
IPC分类号： H01F10/12 , H01F1/053 , H01F1/06 , H01F41/18
摘要： PROBLEM TO BE SOLVED: To provide an insular magnetic thin film composed of a magnetic material containing a rare earth element and having such an insular structure where isolated insular particles composed of the magnetic material are arranged like a discontinuous film, wherein the grain size of the insular particles is small enough, the thickness of the film is thin enough, and the coercive force is high enough. SOLUTION: In the insular magnetic thin film where isolated insular particles composed of a magnetic material are arranged like a discontinuous film, the magnetic material contains a rare earth element, the in-plane diameter of the insular particles has an average value in the range of 40-140 nm, and the thickness of the thin film is in the range of 2-25 nm. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决问题的方案为了提供一种由含有稀土元素的磁性材料构成的岛状磁性薄膜，具有这样的岛状结构，其中由磁性材料构成的隔离的岛状颗粒被排列成不连续的膜，其中颗粒岛状颗粒的尺寸足够小，膜的厚度足够薄，矫顽力足够高。解决方案：在由磁性材料构成的孤立的岛状颗粒被布置成不连续膜的岛状磁性薄膜中，磁性材料含有稀土元素，岛状颗粒的面内直径具有平均值 40-140nm的范围，薄膜的厚度在2-25nm的范围内。版权所有（C）2009，JPO＆INPIT

42. 发明专利

JP2008303409A METHOD FOR PRODUCING NdFeB-BASED NANOPARTICLE 审中-公开
标题翻译：用于生产钕铁硼的纳米材料的方法
公开(公告)号：JP2008303409A
公开(公告)日：2008-12-18
申请号：JP2007149376
申请日：2007-06-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SAKUMA NORITSUGU , SHOJI TETSUYA , KATO AKIRA
IPC分类号： B22F9/04 , B22F1/00 , C22C38/00 , H01F1/053 , H01F1/06
摘要： PROBLEM TO BE SOLVED: To provide a method for producing NdFeB-based particles with suitable particle diameters. SOLUTION: In the method for producing NdFeB based nanoparticles by pulverizing an NdFeB-based alloy in an inert atmosphere by mechanical pulverization, after the NdFeB based alloy is rough-pulverized, mechanical pulverization is performed at a peripheral velocity of ≥12 m/s using a wet bead mill, wherein the particle diameters of the beads in the bead mill are ≤0.1 mm. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种制备具有适当粒径的NdFeB基颗粒的方法。解决方案：在通过机械粉碎在惰性气氛中粉碎NdFeB基合金来制造NdFeB基纳米颗粒的方法中，在将NdFeB基合金粗粉碎后，以大于12m的圆周速度进行机械粉碎 / s，其中珠磨机中的珠粒的粒径≤0.1mm。版权所有（C）2009，JPO＆INPIT

43. 发明专利

JP2008138238A METHOD FOR PRODUCING Fe/Pd COMPOSITE NANOPARTICLE 有权
标题翻译：生产Fe / Pd复合纳米粒子的方法
公开(公告)号：JP2008138238A
公开(公告)日：2008-06-19
申请号：JP2006323876
申请日：2006-11-30
申请人： Toyota Motor Corp , Univ Of Tsukuba , トヨタ自動車株式会社 , 国立大学法人筑波大学
发明人： TERANISHI TOSHIJI , NAKAMURA NAOKI , SHOJI TETSUYA , SAKUMA NORITSUGU
IPC分类号： B22F1/02 , B82B3/00
摘要： PROBLEM TO BE SOLVED: To provide a method for producing Fe/Pd composite nanoparticles.
SOLUTION: The method for producing the Fe/Pd composite nanoparticles having a Pd phase as a core and an Fe phase as a shell includes the steps of: mixing nanoparticles of Pd having particle sizes of 1 to 100 nm with a detergent, a salt of Fe, and a reducing agent; and reducing Fe ions composing the salt of Fe by heating the mixture to deposit the particles on the nanoparticles of Pd.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种生产Fe / Pd复合纳米粒子的方法。解决方案：以Pd相为核，Fe相作为壳的Fe / Pd复合纳米粒子的制造方法包括：将粒径为1〜100nm的Pd的纳米粒子与洗涤剂混合， Fe的盐和还原剂; 并通过加热该混合物来还原构成Fe盐的Fe离子以将颗粒沉积在Pd纳米颗粒上。版权所有（C）2008，JPO＆INPIT

44. 发明专利

JP2007239078A Method for producing metal magnetic particle 审中-公开
标题翻译：生产金属磁性颗粒的方法
公开(公告)号：JP2007239078A
公开(公告)日：2007-09-20
申请号：JP2006066757
申请日：2006-03-10
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： SAKUMA NORITSUGU , SHOJI TETSUYA , TAJIMA SHIN , TAKEUCHI HISATO
IPC分类号： B22F9/24 , C22C5/04
摘要： PROBLEM TO BE SOLVED: To provide a method for producing metal magnetic particles capable of easily obtaining FePt based metal magnetic particles having high coercive force as the material for a magnetic recording medium.
SOLUTION: The method for producing metal magnetic particles comprises a heating stage where a solution containing: a compound having a triphenylmethane skeleton which includes a hydroxyl group as a substitutional group for increasing the boiling point of the compound having a triphenylmethane skeleton or further includes an alkyl group as a substitutional group for increasing the boiling point of the compound having a triphenylmethane skeleton; iron acetylacetonate; platinum acetylacetonate; and tetraethyleneglycol as a reducing agent is heated at ≥330°C, so as to obtain metal magnetic particles.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种能够容易地获得具有高矫顽力的FePt基金属磁性颗粒的金属磁性颗粒的制造方法，作为磁记录介质的材料。解决方案：金属磁性颗粒的制造方法包括：加热阶段，其中含有具有三苯甲烷骨架的化合物的溶液，所述三苯甲烷骨架包括羟基作为用于提高具有三苯甲烷骨架的化合物的沸点的取代基或更进一步包括烷基作为提高具有三苯甲烷骨架的化合物的沸点的取代基; 乙酰丙酮铁乙酰丙酮铂和作为还原剂的四乙二醇在≥330℃下加热，得到金属磁性颗粒。版权所有（C）2007，JPO＆INPIT

45. 发明专利

JP2014127491A Method of producing rare-earth magnet 有权
标题翻译：生产稀土磁铁的方法
公开(公告)号：JP2014127491A
公开(公告)日：2014-07-07
申请号：JP2012280867
申请日：2012-12-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAGA KAZUAKI , MIYAMOTO NORITAKA , SHOJI TETSUYA , SAKUMA DAISUKE
IPC分类号： H01F41/02 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/24 , C22C38/00 , H01F1/057 , H01F1/08
CPC分类号： H01F41/00 , C22C1/00 , C22C38/00 , C22C2202/00 , H01F1/0576 , H01F41/0293
摘要： PROBLEM TO BE SOLVED: To provide a method of producing a rare-earth magnet in which the melt of a modified alloy powder can be diffused, without causing oxidization reaction or hydroxylation reaction, even when the modified alloy powder is used for enhancing the coercive force.SOLUTION: A method of producing a rare-earth magnet comprises: a step of producing a molding S by performing hot press working by using the main phase MP(RE:at least one kind of Nd, Pr, Y) of RE-T-B system, and magnetic powder consisting of a grain boundary phase BP around the main phase MP, and then producing a rare-earth magnet precursor C by performing hot plasticity processing of the molding S; and a step of producing a rear-earth magnet by bringing the modified alloy powder composed of an RE-M alloy (M:a metal element not containing heavy rare-earth element), and having an average grain size of 30 μm or more into contact with the surface of the rare-earth magnet precursor C, and diffusing the melt of modified alloy powder into the rare-earth magnet precursor C by heating.
摘要翻译：要解决的问题：为了提供一种稀土类磁铁的制造方法，其中可以扩散改性合金粉末的熔体，而不引起氧化反应或羟基化反应，即使使用改性的合金粉末来提高矫顽力解决方案：制造稀土类磁体的方法包括：通过使用RE-TB的主相MP（RE：至少一种Nd，Pr，Y）进行热压加工来制造成型体S的工序系统和由主相MP周围的晶界相BP组成的磁粉，然后通过对模制S进行热塑性处理来制造稀土磁体前体C. 以及通过将由RE-M合金（M：不含重稀土类元素的金属元素）构成的，平均粒径为30μm以上的改性合金粉末进行制造而制成后置磁铁的工序，与稀土类磁铁母体C的表面接触，通过加热将改性合金粉末的熔融物扩散到稀土类磁体前体C中。

46. 发明专利

JP2013157345A Method of producing rare-earth magnet 审中-公开
标题翻译：生产稀土磁铁的方法
公开(公告)号：JP2013157345A
公开(公告)日：2013-08-15
申请号：JP2012014255
申请日：2012-01-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： OMURA SHINYA , MIYAMOTO NORITAKA , HIRAOKA MOTOKI , SHOJI TETSUYA , HAGA KAZUAKI
IPC分类号： H01F41/02 , B22F3/00 , B22F3/14 , B22F3/26 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a method of producing a rare-earth magnet capable of producing a rare-earth magnet having a coersive force distribution by reducing the amount of a modified alloy used as much as possible, while satisfying the required coersive force performance which will be different for each site.SOLUTION: The method of producing a rare-earth magnet includes a first step for producing a molding S by pressure molding a powder that is a rare-earth magnet material, and a second step for producing a rare-earth magnet RE by bringing a modified alloy T for enhancing the coersive force into partial contact with the molding S and then diffusing and infiltrating the modified alloy T into the molding S by heat treatment. In the second step, a rare-earth magnet precursor C is produced by performing hot plasticity processing for imparting anisotropy to the molding S produced in the first step.
摘要翻译：要解决的问题：提供一种能够通过尽可能地减少所使用的改性合金的量来制造具有共强力分布的稀土类磁体的稀土类磁铁的制造方法，同时满足所需的强制性能这对于各个场地是不同的。解决方案：稀土类磁体的制造方法包括：通过加压成型稀土类磁铁材料的粉末来制造成形体S的第一工序，以及第二制造稀土类磁铁 - 通过将用于提高凝聚力的改性合金T与模制件S部分接触，然后通过热处理将改性合金T扩散并渗透到模制品S中。在第二工序中，通过对第一工序中制造的模制品S进行各向异性的热塑性加工来制造稀土类磁铁母体C.

47. 发明专利

JP2013138127A Production method of rare earth magnet 有权
标题翻译：稀土磁铁的生产方法
公开(公告)号：JP2013138127A
公开(公告)日：2013-07-11
申请号：JP2011288650
申请日：2011-12-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIYAMOTO NORITAKA , ICHIKIZAKI DAISUKE , SHOJI TETSUYA , MANABE AKIRA , IKEDA YUYA
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F3/24 , C22C38/00 , H01F1/055 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a production method of a rare earth magnet using hot plastic processing, the method capable of producing a rare earth magnet with high degree of orientation, by obtaining enough plastic deformation while preventing the generation of cracks on the sides of a compact to be plastic deformed in the hot plastic processing.SOLUTION: Disclosed is a production method of a rare earth magnet, comprising: a first step of pressure molding powder B that is a rare earth magnet material, and producing a compact S with the upper, the lower and the side surfaces; and a second step of disposing a frame material C on the side surfaces of the compact S, the frame material C having relatively higher ductility than the compact S, to form a unit body U with covered side surfaces, punching the unit body U with an upper and a lower punches P and P, and performing hot plastic processing that adds anisotropy while directly pressing the upper and the lower surfaces of the compact S with the upper and the lower punches P and P so as to produce a rare earth magnet, that is to say an orientation magnet S'.
摘要翻译：要解决的问题：为了提供使用热塑性加工的稀土磁体的制造方法，可以通过获得足够的塑性变形同时防止在侧面产生裂纹而能够制造具有高取向度的稀土磁体的方法一种在热塑性加工中塑性变形的结构。本发明公开了一种稀土磁体的制造方法，其特征在于，包括：第一工序，对作为稀土类磁铁材料的粉末B进行加压成型，上，下和侧面; 以及第二步骤，将框架材料C设置在具有比压块S相对更高延展性的压块S的框架材料C的侧表面上，以形成具有被覆盖的侧表面的单位体U，上冲头和下冲头P和P，并且执行加热各向异性的热塑性加工，同时用上下冲头P和P直接挤压压坯S的上表面和下表面以产生稀土磁体，是取向磁铁S'。

48. 发明专利

JP2012142388A Method for producing rare earth magnet 审中-公开
标题翻译：生产稀土磁铁的方法
公开(公告)号：JP2012142388A
公开(公告)日：2012-07-26
申请号：JP2010293431
申请日：2010-12-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIYAMOTO NORITAKA , SHOJI TETSUYA , OMURA SHINYA , ICHIKIZAKI DAISUKE
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F3/17 , B22F3/20 , B22F3/24 , C22C38/00 , H01F1/057 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a rare earth magnet, capable of increasing magnetic flux density and simultaneously increasing coercivity by actively utilizing hot plastic working for the crystalline orientation of a rare earth magnet.SOLUTION: In the method for producing a rare earth magnet, powder of a rare earth magnet material having a composition of R-T-B (R: a rare earth element, and T: Fe or Fe+Co) is added with a fluoride of metal or an alloy to be mixed, the obtained mixed powder is subjected to a formation process to form a bulk body, and then hot plastic working is performed. A content of R is adjusted to 28-33% by mass, and the hot plastic working is performed at 550-800°C.
摘要翻译：要解决的问题：提供一种稀土磁体的制造方法，其能够通过积极地利用热塑性加工用于稀土类磁体的结晶取向来提高磁通密度并同时提高矫顽力。解决方案：在稀土类磁铁的制造方法中，添加具有RTB（R：稀土元素，T：Fe或Fe + Co）组成的稀土类磁铁材料的粉末，金属或合金，对所得到的混合粉末进行成形处理以形成体本体，然后进行热塑性加工。将R的含量调整为28〜33质量％，热塑性加工在550〜800℃下进行。版权所有（C）2012，JPO＆INPIT

49. 发明专利

JP2011129768A Rare earth magnet and method of manufacturing the same 有权
标题翻译：稀土磁铁及其制造方法
公开(公告)号：JP2011129768A
公开(公告)日：2011-06-30
申请号：JP2009287911
申请日：2009-12-18
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SAKUMA NORITSUGU , SHOJI TETSUYA , YANO MASAO
IPC分类号： H01F1/053 , C21D6/00 , C22C38/00 , H01F1/08 , H01F41/02
CPC分类号： H01F1/0571 , B82Y25/00 , C22C33/003 , C22C38/002 , C22C38/005 , C22C45/02 , C22F3/00 , H01F1/0579
摘要： PROBLEM TO BE SOLVED: To provide a rare earth magnet increasing coercive force by accelerating nanosizing of crystal grains by presence of a grain boundary phase. SOLUTION: The rare earth magnet has a composition expressed by formula: R a H b Fe c Co d B e M f , wherein; R:at least one kind of rare earth elements including Y, H:at least one kind of heavy rare earth elements Dy and Tb, M:at least one kind of Ga, Zn, Si, Al, Nb, Zr, Ni, Cu, Cr, Hf, Mo, P, C, Mg and V, and 13≤a≤20, 0≤b≤4, c=100 -a-b-d-e-f , 0≤d≤30, 4≤e≤20, 0≤f≤3, and comprises a main phase:(RH) 2 (FeCo) 14 B phase, and a grain boundary phase:(RH)(FeCo) 4 B 4 phase and an RH phase, and has a structure of a crystal grain size of 10-200 nm. The manufacturing method is characterized by quench-solidifying a molten alloy having the above composition. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过晶界相的存在通过加速晶粒的纳米尺寸来提供稀土磁体增加矫顽力。
解决方案：稀土磁体具有由下式表示的组成：R a H SB SB> B SB 其中; R：至少有一种稀土元素包括Y，H：至少一种重稀土元素Dy和Tb，M：至少一种Ga，Zn，Si，Al，Nb，Zr，Ni，Cu ，Cr，Hf，Mo，P，C，Mg和V，13≤a≤20,0≤b≤4，c = 100 -abdef ，0≤d≤30,4≤e ≤20,0≤f≤3，并且包括主相：（RH） 2 （FeCo） 14 B相，晶界相：（RH） FeCo）SB SB 4相和RH相，晶体结构为10〜200nm。制造方法的特征在于淬火固化具有上述组成的熔融合金。版权所有（C）2011，JPO＆INPIT

50. 发明专利

JP2011100881A Method for manufacturing nanocomposite magnet 有权
标题翻译：制造纳米复合磁体的方法
公开(公告)号：JP2011100881A
公开(公告)日：2011-05-19
申请号：JP2009255140
申请日：2009-11-06
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YANO MASAO , SAKUMA NORITSUGU , SHOJI TETSUYA
IPC分类号： H01F41/02 , B22F1/00 , B22F3/00 , B22F9/08 , C22C38/00 , H01F1/053 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a nanocomposite magnet with satisfactory magnetic characteristics without generating a coarse crystal grain due to crystallization in sintering.
SOLUTION: In the method for manufacturing the nanocomposite magnet, the temperature of a quenched alloy is raised to the temperature below crystallization temperature by rapidly raising temperature under pressure for sintering. The quenched alloy is composed of a quench composition comprising a hard magnetic phase and soft magnetic phase and whose crystalline organization is 85 wt.%.
COPYRIGHT: (C)2011,JPO&INPIT

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