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1. 发明专利

JP2005150380A Flexible inductor 审中-公开
标题翻译：柔性电感器
公开(公告)号：JP2005150380A
公开(公告)日：2005-06-09
申请号：JP2003385509
申请日：2003-11-14
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： B22F3/00 , H01F1/26 , H01F27/255 , H01F37/00
摘要： PROBLEM TO BE SOLVED: To provide a flexible inductor that is low in initial permeability and reduced in the variation of permeability even under a high magnetic field.
SOLUTION: The flexible inductor is constituted in a molded body composed of soft magnetic powder and rubber and has form deformability. The molded body is obtained by kneading 60-80 vol.% of soft magnetic powder and 20-40 vol.% of rubber.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供初始磁导率低的柔性电感器，即使在高磁场下也可以减小磁导率的变化。解决方案：柔性电感器由软磁粉末和橡胶构成的成型体构成，具有形状变形性。通过捏合60-80体积％的软磁性粉末和20-40体积％的橡胶来获得成型体。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005079530A Soft magnetic powder and dust core using it 审中-公开
标题翻译：软磁粉和软芯使用它
公开(公告)号：JP2005079530A
公开(公告)日：2005-03-24
申请号：JP2003311664
申请日：2003-09-03
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： B22F9/04 , B22F1/00 , B22F9/08 , C22C38/00 , H01F1/147 , H01F1/20 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a dust core having high initial permeability and excellent direct-current superposition characteristics and soft magnetic powder used for it. SOLUTION: Soft magnetic powder has an aspect ratio of 1.2 to 2 and a plurality of acute angle portions formed on the surface. A dust core has magnetic characteristics of μ 0 ≥100 and μ/μ 0 ≥0.8, expressing initial permeability as μ 0 and permeability at the time of magnetic field impression of 1600A/m as μ. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有高初始磁导率和优异的直流叠加特性的粉芯，以及用于其的软磁性粉末。解决方案：软磁粉末的纵横比为1.2-2，在表面上形成多个锐角部分。防尘芯具有μ 0 ≥100和μ/μ 0 ≥0.8的磁特性，表示初始磁导率为μ 0 ， 1600A / m的磁场印象时间为μ。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2003059710A Dust core 审中-公开
标题翻译： DUST CORE
公开(公告)号：JP2003059710A
公开(公告)日：2003-02-28
申请号：JP2002166075
申请日：2002-06-06
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： B22F1/00 , B22F1/02 , C22C38/00 , C22C45/02 , H01F1/153 , H01F1/24 , H01F3/08
CPC分类号： H01F1/15308
摘要： PROBLEM TO BE SOLVED: To provide a dust core which can be restrained from decreasing in permeability even if a strong magnetic field is applied and has a low core loss and new soft magnetic powder used for manufacturing the same.
SOLUTION: A dust core has a composition represented by a following formula, (Fe
1-f (Co+Ni)
f )
100-e-d-c-b-a M
e M'
d Si
c B
b X
a , (wherein, M is at least an element selected from Hf, Ta, Ti, Zr and Nb, M' is at least an element selected out of Sc, V, Cr, Mn, Mo, Pd, W, Pt, Zn, Sn and rare earth elements, X denotes at least an element selected from Cu, N, O, Al, P, S, Ca, Ga, Ge, As, Li, Be, Mg, Se, Sr, Cd, In, Sb, Te and Ba, and f, e, d, c, b and a are each so set as to satisfy following formulas, 0≤f≤30, 0≤e≤30, 0≤d≤20, 0≤c≤30, 1≤b≤30, and 0≤a≤50).
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供即使施加强磁场并且具有低磁芯损耗也可以抑制渗透性降低的粉尘芯和用于制造这种磁芯的新的软磁性粉末。解决方案：防尘芯具有由下式表示的组成：（Fe1-f（Co + Ni）f）100-edcba Me M'd Sic Bb Xa（其中，M是至少一种选自Hf，Ta ，Ti，Zr和Nb中的至少一种元素，M'是选自Sc，V，Cr，Mn，Mo，Pd，W，Pt，Zn，Sn和稀土元素中的至少一种元素，X表示选自Cu ，N，O，Al，P，S，Ca，Ga，Ge，As，Li，Be，Mg，Se，Sr，Cd，In，Sb，Te和Ba以及f，e，d，c，b和 a分别设定为满足下列公式：0 <= f <= 30,0 <= e <= 30,0 <= d <= 20,0 <= c <= 30,1 <= b <= 30 ，0 <= a <= 50）。

4. 发明专利

JP2003037018A Method for manufacturing dust core 审中-公开
标题翻译：制造粉芯的方法
公开(公告)号：JP2003037018A
公开(公告)日：2003-02-07
申请号：JP2001221707
申请日：2001-07-23
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： SAITOU TAKANOBU , TAKEMOTO SATOSHI
IPC分类号： H01F1/22 , H01F1/24 , H01F1/33 , H01F41/02
CPC分类号： H01F1/24
摘要： PROBLEM TO BE SOLVED: To manufacture a dust core in which an electrical resistance value is large and a core loss due to an eddy current is small.
SOLUTION: A manufacturing method contains a step of mixing a metal salt aqueous solution with soft magnetic powder for forming the mixture, to heat the mixture. The metal forms an oxide of electrical insulation.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：制造电阻值大且由于涡流引起的磁芯损耗小的防尘芯体。解决方案：制造方法包括将金属盐水溶液与用于形成混合物的软磁性粉末混合以加热混合物的步骤。金属形成电绝缘氧化物。

5. 发明专利

JP2005142308A Magnetic core formed of pressed powder 审中-公开
标题翻译：压力粉末形成的磁芯
公开(公告)号：JP2005142308A
公开(公告)日：2005-06-02
申请号：JP2003376165
申请日：2003-11-05
申请人： Asahi Kasei Chemicals Corp , Daido Steel Co Ltd , 大同特殊鋼株式会社 , 旭化成ケミカルズ株式会社
发明人： SAITOU TAKANOBU , TAKEMOTO SATOSHI , DOKE KIYOTAKA , KAKIMOTO ETSUJI
IPC分类号： B22F1/02 , B22F3/08 , C22C38/00 , C22C38/06 , H01F1/147 , H01F1/24 , H01F3/08 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a magnetic core formed of pressed powder which ensures higher permeability, allows reduction in size and also ensures DC superimposing characteristic. SOLUTION: The magnetic core formed of pressed powder can be obtained by conducting the heat treatment to the molded material with the impulse wave compressing method of a mixture of the soft magnetic powder formed of Si of 6 to 12 mass%, Al of 3 to 8 mass% and a remainder which is substantially formed of Fe and an insulated binder for electrically insulating the soft magnetic powder. The relative density of the magnetic core of pressed powder is equal to 85% or higher and the relationship expressed by the formula μi≥79×n-15 is established between the aspect radio (n) of the soft magnetic powder and the initial permeability (μi) of the magnetic core of pressed powder using the same soft magnetic powder. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种由压粉制成的磁芯，其确保更高的磁导率，允许减小尺寸并且还确保DC叠加特性。解决方案：由粉末形成的磁芯可以通过以下组成的冲击波压制方法对成型材料进行热处理：由Si组成的软磁性粉末的混合物的6〜12质量％，Al 3〜8质量％，余量基本由Fe形成，绝缘粘合剂使软磁性粉末电绝缘。压粉的磁芯的相对密度等于85％以上，并且由软磁粉末的方形无线电（n）和初始磁导率（n）之间建立由公式μi≥79×n-15表示的关系式 μi）使用相同的软磁粉末的压粉粉末的磁芯。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004288983A Dust core and method for manufacturing same 有权
公开(公告)号：JP2004288983A
公开(公告)日：2004-10-14
申请号：JP2003080830
申请日：2003-03-24
申请人： Daido Steel Co Ltd , Finesinter Co Ltd , Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 大同特殊鋼株式会社 , 株式会社ファインシンター , 株式会社豊田中央研究所
发明人： HATTORI TAKESHI , TAJIMA SHIN , KONDO MIKIO , HIGASHIYAMA KIYOSHI , KISHIMOTO HIDESHI , SUGIYAMA MASAKI , KIKKO TADAYOSHI , SAITOU TAKANOBU , KONDO TETSUYA
IPC分类号： H01F1/24 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a dust core which shows excellent magnetic characteristics and has reduced iron loss(hysteresis loss) on the premise of its use in a low/intermediate frequency area.
SOLUTION: In the dust core obtained by pressurizing and forming soft magnetic powder with Fe coated with an insulated film as a main component, the soft magnetic powder consists of particles which contain 2 to 5 mass % Si and which have 30 to 70 μm weight average particle size, 1 to 3 average aspect ratio and ≤200A/m coercive force (iHc). The soft magnetic powder has ≥92% density ratio (ρ/ρ
0 :%) being the ratio of a bulk density (ρ) to the true density (ρ
0 ) of the soft magnetic powder, and is used in an alternating field where a frequency ranges 1 to 5 kHz.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2003272909A Dust core 审中-公开
标题翻译： DUST CORE
公开(公告)号：JP2003272909A
公开(公告)日：2003-09-26
申请号：JP2002068929
申请日：2002-03-13
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： H01F1/22 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a dust core that shows high permeability when the core is actually used, has a satisfactory D.C. superimposing characteristic, and can be reduced suitably in size.
SOLUTION: This dust core is composed of a press-molded body composed mainly of a soft magnetic powder having an aspect ratio of 1.3-2.5. The major axis of the soft magnetic powder is inclined from the direction of the magnetic path of the core by an average angle of ≥20°.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供当芯实际使用时显示高磁导率的防尘芯，具有令人满意的直流电叠加特性，并且可以适当地减小尺寸。解决方案：该防尘芯由主要由长宽比为1.3-2.5的软磁性粉末组成的压模体构成。软磁粉末的长轴从芯的磁路方向倾斜≥20°的平均角度。版权所有（C）2003，JPO

8. 发明专利

JP2003022919A Magnetic element 审中-公开
标题翻译：磁性元件
公开(公告)号：JP2003022919A
公开(公告)日：2003-01-24
申请号：JP2001208122
申请日：2001-07-09
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： H01F38/02 , H01F21/08
摘要： PROBLEM TO BE SOLVED: To provide a magnetic element wherein permeability is hard to decrease and high DC superposing characteristic is obtained, when a magnetic field applied to a core is increased in accordance with a current applied to a coil. SOLUTION: The magnetic element 1 includes a core 2 having a ring shape, a coil 4 which is wound around the core 2 and excites an internal magnetic field Φ1 containing magnetic flux penetrating the inside of the core 2, and permanent magnets (external magnetic field applying means) 6, 6 for applying an external magnetic field Φ2 containing magnetic flux which is almost rectangular to the magnetic flux of the internal magnetic field Φ1.
摘要翻译：要解决的问题：为了提供磁导率难以降低的磁性元件，并且当施加到磁芯的磁场根据施加到线圈的电流而增加时，获得高的DC叠加特性。解决方案：磁性元件1包括具有环形的芯2，缠绕在芯2上的线圈4，并且激发包含穿过芯2内部的磁通的内部磁场Φ1，以及永磁体（外部磁场施加装置）6,6用于施加包含与内部磁场Φ1的磁通量几乎为矩形的磁通的外部磁场Φ2。

9. 发明专利

JP2006114695A Magnetic body 审中-公开
标题翻译：磁体
公开(公告)号：JP2006114695A
公开(公告)日：2006-04-27
申请号：JP2004300498
申请日：2004-10-14
申请人： Daido Steel Co Ltd , 大同特殊鋼株式会社
发明人： TAKEMOTO SATOSHI , SAITOU TAKANOBU
IPC分类号： H01F1/26 , B22F1/00 , C22C38/00 , H01F1/147
摘要： PROBLEM TO BE SOLVED: To provide the magnetic body (dust core) of a low core loss by regulating the relation between operating frequency and the particle diameter of used powder. SOLUTION: In the magnetic body which operates using Fe-Si system soft magnetism powder, the magnetic body is made to operate by a desired frequency. In this case, the weight average particle diameter of the soft magnetism powder is controlled so that the core loss of a magnetic body may be located within the limits of the minimum core loss and the core loss of the 1.1 time value specifically. In concrete terms, when the weight average particle diameter of the soft magnetism powder is set to D (μm) and the operating frequency when operating a magnetic body is set to F (kHz), the following relations are satisfied between D and f: -0.5×log 10 f+1.7≤log 10 D≤-0.5×log 10 f+2.5, however, 500 Hz≤f≤30 kHz. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过调节使用粉末的工作频率和粒径之间的关系来提供具有低铁损的磁体（防尘芯）。
解决方案：在使用Fe-Si系软磁粉末的磁体中，使磁体以期望的频率工作。在这种情况下，控制软磁粉末的重均粒径，使得磁体的铁心损耗可以具体地位于最小铁心损耗和1.1时间值的铁心损耗的限度内。具体而言，将软磁粉末的重量平均粒径设定为D（μm），将磁体运转时的工作频率设定为F（kHz）时，D与f之间满足以下关系： 0.5×log 10 f +1.7≤log 10 D≤-0.5×log 10 f + 2.5，但是，500Hz≤f≤30 千赫。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005311196A Dust core for vehicle-mounted motor, and manufacturing method thereof 审中-公开
标题翻译：车载安装电机的紧心芯及其制造方法
公开(公告)号：JP2005311196A
公开(公告)日：2005-11-04
申请号：JP2004128769
申请日：2004-04-23
申请人： Daido Steel Co Ltd , Nissan Motor Co Ltd , 大同特殊鋼株式会社 , 日産自動車株式会社
发明人： SAITOU TAKANOBU , ONO HIDEAKI , KAWASHITA NOBUO , TAYU TETSURO
IPC分类号： B22F1/00 , B22F1/02 , B22F3/00 , B22F3/24 , C22C38/00 , H01F1/24 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide a dust core for a vehicle-mounted motor which has high density and low iron loss, and to provide a manufacturing method thereof.
SOLUTION: The dust core for the vehicle-mounted motor is a compressed compact of soft magnetic powder, substantially having a composition of 1.0 to 7.0 mass% Si and Fe for the rest and also having its surface coated with an insulating film, the relative density of ≥95% and the electric resistivity of ≥200×10
-8 Ωm. This is manufactured by compressing and compacting the soft magnetic powder coated with the insulating film under the conditions of pressure of ≥200 MPa and temperature of 400 to 900°C.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有高密度和低铁损的车载电动机的集尘芯，并提供其制造方法。解决方案：用于车载电动机的防尘芯是软磁粉末的压缩压块，其基本上具有1.0至7.0质量％的Si和Fe的组分，并且其表面涂覆有绝缘膜，相对密度≥95％，电阻率≥200×10 -8 Ωm。这是通过在≥200MPa的压力和400-900℃的压力的条件下压制和压制涂覆有绝缘膜的软磁性粉末来制造的。版权所有（C）2006，JPO＆NCIPI

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