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1. 发明专利

JP2011258961A Rare earth magnet and rotary machine using the same 有权
标题翻译：稀土磁铁和使用相同的旋转机
公开(公告)号：JP2011258961A
公开(公告)日：2011-12-22
申请号：JP2011153420
申请日：2011-07-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMURO MATAHIRO , SATSU YUICHI , SUZUKI HIROYUKI
IPC分类号： H01F1/053 , B22F1/02 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a rare earth magnet having a high coercive force, a high magnetic flux density and a high specific resistance, and to provide a rotary machine using the same.SOLUTION: In the rare earth magnet made of a ferromagnetic material mainly consisting of iron, rare earth element and fluorine, a fluorine compound or an acid fluorine compound containing at least one kind of light rare earth element is formed inside a crystal grain or at a grain boundary, and RFeF(R: a light rare earth element; l, m, n: an integer of one or greater) with a crystal structure of a four-fold symmetry is present between the fluorine compound or the acid fluorine compound, and the inside of the crystal grain or the grain boundary, the concentration of fluorine being higher in the grain boundary than inside the crystal grain.
摘要翻译：要解决的问题：提供具有高矫顽力，高磁通密度和高电阻率的稀土磁体，并提供使用该稀土磁铁的旋转机械。解决方案：在由铁，稀土元素和氟主要组成的铁磁材料制成的稀土磁体中，在晶粒内部形成含有至少一种轻稀土元素的氟化合物或酸性氟化合物或在晶界处，并且R F n 在氟化合物或酸性氟化合物之间存在具有四重对称的晶体结构的轻稀土元素; l，m，n：1以上的整数），并且晶粒内部或晶界，在晶界中氟的浓度高于晶粒内的浓度。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2014194958A Sintered magnet 审中-公开
标题翻译：烧结磁铁
公开(公告)号：JP2014194958A
公开(公告)日：2014-10-09
申请号：JP2011136875
申请日：2011-06-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATSU YUICHI , KOMURO MATAHIRO
IPC分类号： H01F1/08 , H01F1/057
CPC分类号： H01F1/0579 , B22F1/02 , B32B15/011 , C22C28/00 , C22C38/002 , C22C38/005 , C22C38/10 , C22C38/14 , C22C2202/02 , H01F1/0577 , H01F41/0293
摘要： PROBLEM TO BE SOLVED: To provide a sintered magnet that satisfies reduction of rare earth elements that are rare resources and increase of coercive force and a maximum energy product.SOLUTION: An Fe-based powder of high saturation magnetic flux density is mixed with a NdFeB-based magnetic powder. The Fe-based powder has shape anisotropy and a surface of which is coated with a fluoride containing heavy rare earth element by a solution treatment. An average particle diameter of the Fe-based powder is larger than an average particle diameter of the NdFeB-based magnetic powder.
摘要翻译：要解决的问题：提供一种满足稀有资源的稀土元素的还原和矫顽力的增加和最大能量乘积的烧结磁体。解决方案：将高饱和磁通密度的Fe基粉末与NdFeB 的磁粉。 Fe基粉末具有形状各向异性，并通过固溶处理将其表面涂覆有含有重稀土元素的氟化物。 Fe系粉末的平均粒径大于NdFeB系磁性粉末的平均粒径。

3. 发明专利

JP2013211300A Magnetic material and method for producing the same 审中-公开
标题翻译：磁性材料及其制造方法
公开(公告)号：JP2013211300A
公开(公告)日：2013-10-10
申请号：JP2012078807
申请日：2012-03-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHI KAZUYA , TANIGAWA SHIGEO , KOMURO MATAHIRO , SATSU YUICHI
IPC分类号： H01F1/055 , B22F1/00 , C22C38/00 , G11B5/633 , G11B5/64 , G11B5/84 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a fluorine-containing magnetic material excellent in magnetic characteristics and thermal stability.SOLUTION: During a process of introducing fluorine into an Sm-Fe based material having a ThZnstructure, a crystal structure thereof is controlled, and an Sm-Fe-F phase constituting the material is configured so as to include a first group having a mixture ratio of F of less than 1% in molar ratio and a second group having a mixture ratio of F of 1% or more and less than 4% in molar ratio, while a volume ratio of the second group with respect to the total magnetic material is 50% or more. The second group is formed more than the first group in a position at a depth in a range of 1 μm to 2.5 μm from the surface of the magnetic material.
摘要翻译：要解决的问题：提供磁特性和热稳定性优异的含氟磁性材料。解决方案：在将氟引入具有ThZn结构的Sm-Fe基材料的过程中，其晶体结构受到控制，Sm 构成材料的-Fe-F相被配置为包括摩尔比小于1％的F的混合比的第一组和F的混合比为1％以上且小于4的第二组摩尔比为％，而第二组相对于总磁性材料的体积比为50％以上。第二组在距离磁性材料表面1μm至2.5μm范围内的深度位置上形成多于第一组。

4. 发明专利

JP2013069738A Sintered magnet 有权
标题翻译：烧结磁铁
公开(公告)号：JP2013069738A
公开(公告)日：2013-04-18
申请号：JP2011205491
申请日：2011-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMURO MATAHIRO , SATSU YUICHI , KITAGAWA ISAO , SUGAWARA AKIRA
IPC分类号： H01F1/08 , H01F1/057
CPC分类号： H01F1/0572 , H01F1/0577 , H01F1/0579
摘要： PROBLEM TO BE SOLVED: To provide a sintered magnet reducing the usage amount of rare earth elements of a rare earth magnet and satisfying an increase of maximum energy product and coercive force.SOLUTION: In a sintered magnet in which NdFeB based crystals and FeCo based crystals are present via a grain boundary, Co concentration decreases from a central part to a periphery within the FeCo based crystals, Co concentrations at the central part and the periphery within the FeCo based crystals have a difference by 2 atom% or more, and Co and heavy rare earth elements are unevenly distributed in the vicinity of the grain boundary within the NdFeB based crystals.
摘要翻译：要解决的问题：提供一种减少稀土类磁铁的稀土元素的使用量并满足最大能量乘积和矫顽力的增加的烧结磁体。解决方案：在其中通过晶界存在NdFeB基晶体和FeCo基晶体的烧结磁体中，Co浓度在FeCo基晶体中的中心部分到外围减少，在中心部分和外围的Co浓度在FeCo基晶体内的差异为2原子％以上，Co和重稀土元素不均匀地分布在NdFeB系晶体内的晶界附近。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2013098448A Iron-based magnetic material and manufacturing method thereof 有权
标题翻译：基于铁的磁性材料及其制造方法
公开(公告)号：JP2013098448A
公开(公告)日：2013-05-20
申请号：JP2011241830
申请日：2011-11-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANDA TAKAYUKI , ABE NOBUO , SATSU YUICHI , KOMURO MATAHIRO , SUZUKI HIROYUKI
IPC分类号： H01F1/055 , B22F1/00 , B22F9/00 , C22C38/00 , C25C1/06 , H01F1/06
CPC分类号： Y02P10/234
摘要： PROBLEM TO BE SOLVED: To provide a fluoride magnetic material improved in magnetic characteristics and thermal stability.SOLUTION: A Sm-Fe-based material having a ThZnstructure is fluorinated while controlling reaction conditions and the conditions of R≤1.455 and V≥800(Å) are satisfied regarding a ratio R(=c/a) of a c-axis and an a-axis and a grid volume V, thereby obtaining a magnetic material improved in magnetic characteristics and thermal stability.
摘要翻译：要解决的问题：提供改善磁特性和热稳定性的氟化物磁性材料。解决方案：具有Th 2 Zn 17 结构的Sm-Fe基材料被氟化，同时控制反应条件和关于c轴和a轴的比率R（= c / a），满足R≤1.455和V≥800的条件（Å 3 ）网格体积V，从而获得磁特性和热稳定性提高的磁性材料。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2013157487A Magnetic material and magnet 审中-公开
标题翻译：磁性材料和磁铁
公开(公告)号：JP2013157487A
公开(公告)日：2013-08-15
申请号：JP2012017471
申请日：2012-01-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANDA TAKAYUKI , SATSU YUICHI , KOMURO MATAHIRO
IPC分类号： H01F1/055 , C22C13/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To solve such a problem that, while magnetic characteristics of magnetic materials in the conventional arts are improved by an infiltration of rare earth elements in fluoride into a surface of a magnetic material, the rare earth elements are rare resources and a reduction of the used amount thereof is required.SOLUTION: A magnetic material (Re-Fe based material (where, Re represents a rare earth element including scandium and yttrium)) of the present invention has an ReFe phase in which a crystal lattice is expanded by the intrusion of fluorine, an Sn phase, and an SnFe alloy phase, and the content of tin is 0.01-50 atom%.
摘要翻译：要解决的问题为了解决现有技术中的磁性材料的磁特性通过将氟化物中的稀土元素渗透到磁性材料的表面而提高的稀土元素是稀有资源和需要减少其使用量。本发明的磁性材料（Re-Fe系材料（其中，Re表示包含钪和钇的稀土元素））具有晶格扩大的ReFe相通过氟，Sn相和SnFe合金相的侵入，锡的含量为0.01-50原子％。

7. 发明专利

JP2013135542A Sintered magnet motor 审中-公开
标题翻译：烧结磁铁电机
公开(公告)号：JP2013135542A
公开(公告)日：2013-07-08
申请号：JP2011284704
申请日：2011-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMURO MATAHIRO , HINO TOKUAKI , SATSU YUICHI
IPC分类号： H02K21/14 , H01F1/057 , H01F1/08 , H02K1/27
CPC分类号： H02K1/02 , H01F41/0293 , H02K1/2766
摘要： PROBLEM TO BE SOLVED: To provide a magnetic flux variable motor with a kind of sintered magnet, capable of increasing a maximum energy product of NdFeB sintered magnet and making residual magnetic flux density variable, which has never been achieved by a conventional technology.SOLUTION: The sintered magnet motor of the present invention includes a rotor, a stator, and a coil, and the rotor is formed with a sintered magnet. The sintered magnet motor controls the residual magnetic flux density of the sintered magnet using a magnetic field developed by a coil current.
摘要翻译：要解决的问题：为了提供一种具有一种烧结磁体的磁通量可变电动机，其能够增加NdFeB烧结磁体的最大能量乘积并使得剩余磁通密度可变，这是从未通过常规技术实现的。解决方案：本发明的烧结磁体电动机包括转子，定子和线圈，转子由烧结磁体形成。烧结磁体电动机使用由线圈电流产生的磁场来控制烧结磁体的剩余磁通密度。

8. 发明专利

JP2012151259A Magnetic material 审中-公开
标题翻译：磁性材料
公开(公告)号：JP2012151259A
公开(公告)日：2012-08-09
申请号：JP2011008375
申请日：2011-01-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANDA TAKAYUKI , ABE NOBUO , SATSU YUICHI , KOMURO MATAHIRO , SUZUKI HIROYUKI
IPC分类号： H01F1/09 , B22F1/00 , B22F1/02 , H01F1/055
摘要： PROBLEM TO BE SOLVED: To improve the characteristics of a magnetic material without using a rare earth element which is a rare resource.SOLUTION: On the surface of particles of a magnetic powder, a film of a fluorine compound containing hydrogen, nitrogen, fluorine, and a metal element, where hydrogen is contained more than nitrogen and fluorine is contained more than the metal element, is formed. A magnetic material in which the magnetic characteristics of the magnetic powder are improved without using a rare earth element can be obtained by making an element contained in the film intrude between the lattices of a crystal composing the particles of the magnetic powder.
摘要翻译：要解决的问题：为了提高磁性材料的特性，而不使用稀有元素的稀土元素。解决方案：在磁性粉末颗粒的表面上，含有比氮和氟多的氢含有氢，氮，氟和金属元素的氟化合物的膜比金属元素多，形成了。通过使包含在膜中的元素侵入构成磁粉的颗粒的晶体的晶格之间，可以获得不使用稀土元素而改善磁性粉末的磁特性的磁性材料。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2012124189A Sintered magnet 审中-公开
标题翻译：烧结磁铁
公开(公告)号：JP2012124189A
公开(公告)日：2012-06-28
申请号：JP2010271025
申请日：2010-12-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ABE NOBUO , SATSU YUICHI , KOMURO MATAHIRO
IPC分类号： H01F1/057 , C22C33/02 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To improve characteristics of a magnetic material without using heavy rare earth elements of scarce resources.SOLUTION: A fluorine-containing grain boundary phase is formed between a rare earth-iron crystal grain and an iron-cobalt alloy crystal grain, and magnetic coupling is developed in the iron-cobalt alloy crystal grain and the rare earth-iron crystal grain with an eccentrically-located rare earth element, so that a high energy product is achieved. A sintered magnet having a high saturation magnetic flux density, a coercive force of 10 kOe or more, and a Curie point of 600 K or more can be obtained when a weight of the iron-cobalt alloy crystal grain is in a range from 0.1 to 90% by weight relative to a weight of the entire sintered magnet.
摘要翻译：要解决的问题：为了改善磁性材料的特性，而不使用稀缺资源的重稀土元素。解决方案：在稀土铁结晶和铁 - 钴合金晶粒之间形成含氟晶界相，在铁 - 钴合金晶粒和稀土铁中形成磁耦合具有偏心定位稀土元素的晶粒，从而实现高能量产品。当钴 - 钴合金晶粒的重量在0.1〜1.0的范围内时，可以得到具有高饱和磁通密度，10kOe以上的矫顽力和居里点为600K以上的烧结磁体。相对于整个烧结磁体的重量为90重量％。版权所有（C）2012，JPO＆INPIT

10. 发明专利

DE69717718D1 未知
公开(公告)号：DE69717718D1
公开(公告)日：2003-01-23
申请号：DE69717718
申请日：1997-05-26
申请人： HITACHI LTD , HITACHI POWDERED METALS
发明人： SATSU YUICHI , KATAYAMA HIDEAKI , ITO YUZO , TAKAHASHI AKIO , BABA NOBORU , TANAKA CHIKARA , MIYATA HIROAKI , SATOU KAZUHIRO , ASAKA KAZUO , ISHIHARA CHIO
IPC分类号： H01F1/24 , H01F1/26 , H01F41/02 , H01F3/08

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