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1. 发明专利

JP2007231415A Amorphous soft magnetic alloy, amorphous soft magnetic alloy member, amorphous soft magnetic alloy ribbon, amorphous soft magnetic alloy powder and magnetic core and inductance component using the same 有权
标题翻译：非晶软磁合金，无定形软磁合金成员，非晶软磁合金，非晶软磁合金粉末，磁性核和使用其的电感元件
公开(公告)号：JP2007231415A
公开(公告)日：2007-09-13
申请号：JP2006326179
申请日：2006-12-01
申请人： Nec Tokin Corp , Necトーキン株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： URATA KENRI , FUJIWARA TERUHIKO , MATSUMOTO HIROYUKI , YAMADA TAKENOBU , INOUE AKIHISA
IPC分类号： C22C45/02 , B22D11/06 , B22F1/00 , B22F9/08 , C22C1/04 , C22C33/02 , C22C45/04 , H01F1/153 , H01F1/16 , H01F1/22 , H01F27/24 , H01F27/25
CPC分类号： H01F1/153 , B22F9/002 , B22F2003/248 , B22F2998/00 , B22F2998/10 , C22C28/00 , C22C33/003 , C22C33/0207 , C22C33/0257 , C22C45/02 , H01F1/15308 , H01F1/15375 , H01F3/14 , H01F17/062 , H01F41/0226 , H01F41/0246 , H01F2017/048 , B22F9/082 , B22F2201/20 , B22F2201/11 , B22F3/18 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide an amorphous soft magnetic alloy which has a supercooled liquid region and is excellent in amorphous-forming ability and soft magnetic properties, by selecting and optimizing an alloy composition, and to further provide a ribbon, a powder, a high-frequency magnetic core and a bulk member each using the amorphous soft magnetic alloy. SOLUTION: The amorphous soft magnetic alloy has a composition of the formula: (Fe 1-α TM α ) 100-w-x-y-z P w B x L y Si z (wherein unavoidable impurities are contained; TM is at least one chosen from Co and Ni; L is at least one chosen from the group consisting of Al, V, Cr, Y, Zr, Mo, Nb, Ta, and W; 0≤α≤0.98; 2≤w≤16 atom%; 2≤x≤16 atom%; 0 COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决方案：通过选择和优化合金组成，提供具有过冷液体区域并且非晶形成能力和软磁性能优异的非晶软磁合金，并进一步提供带状物，粉末，高频磁芯和大块部件，各自使用非晶软磁合金。解决方案：无定形软磁性合金具有下式的组成：（Fe 1-αα）100-wxyz （其中含有不可避免的杂质; TM是选自Co中的至少一种）和Ni; L是选自Al，V，Cr，Y，Zr，Mo，Nb，Ta和W中的至少一种;0≤α≤0.98;2≤w≤16原子％;2≤x ≤16原子％; 0

2. 发明专利

JP2006245418A Inductance component 审中-公开
标题翻译：电感元件
公开(公告)号：JP2006245418A
公开(公告)日：2006-09-14
申请号：JP2005060962
申请日：2005-03-04
申请人： Nec Tokin Corp , Necトーキン株式会社
发明人： MATSUMOTO HIROYUKI , FUJIWARA TERUHIKO
IPC分类号： H01F17/04 , H01F1/053 , H01F1/08 , H01F7/02 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide an inductance component excellent in direct-current superposition characteristics appropriate to large currents. SOLUTION: The inductance component is of such a structure that a winding coil 3 is sealed in a soft magnetic core 2 obtained by pressure molding an intimate mixture containing soft magnetic material powder and binder. The inductance component is obtained by placing in the soft magnetic core 2 one or more permanent magnets 7 magnetized in the opposite direction to the magnetic field formed in the inner circumferential area 6 of the winding coil 3 by the winding coil 3, and integrating them. Owing to the magnetic field in the opposite direction of the permanent magnets, the magnetic saturation of the soft magnetic core 2 is improved even when a large current is passed through the winding coil 3 by the magnetic field in the opposite direction of the permanent magnets, and thus the direct-current superposition characteristics are improved. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供优于适合于大电流的直流叠加特性的电感分量。解决方案：电感分量具有这样一种结构，即将绕组线圈3密封在通过将包含软磁性材料粉末和粘结剂的紧密混合物加压成型而获得的软磁芯2中。通过在软磁芯2中放置一个或多个通过绕组线圈3在与绕组线圈3的内周区域6形成的磁场相反的方向上磁化的永磁体7并将它们集成来获得电感分量。由于与永磁体相反的方向的磁场，即使当大电流通过绕永久磁铁的相反方向的磁场通过绕组线圈3时，软磁芯2的磁饱和也得到改善，从而提高了直流叠加特性。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005303020A Magnetic core having magnet for dc magnetic biasing and inductance component using the core 审中-公开
标题翻译：磁芯用于直流磁性偏转的磁体和使用磁芯的电感元件
公开(公告)号：JP2005303020A
公开(公告)日：2005-10-27
申请号：JP2004117420
申请日：2004-04-13
申请人： Nec Tokin Corp , Necトーキン株式会社
发明人： ISOTANI KEITA , FUJIWARA TERUHIKO
IPC分类号： B22F1/00 , B22F1/02 , C22C19/07 , H01F27/24 , H01F37/00 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To provide a magnetic core having a magnet for DC magnetic biasing having excellent core loss characteristics, DC superimposing characteristics which are not influenced at the time of performing reflow soldering, and an oxidation resistance, and to provide an inductance component using the core. SOLUTION: The magnetic core has gaps at, at least, one or more spots of a magnetic path. Bonded magnets composed of rare-earth magnet powder having the composition expressed by Sm(Fe x Cu y Zr z Co 1-x-y-z ) 7.4-8.2 (wherein, 0.18≤x≤0.24, 0.06≤y≤0.09, 0.02≤z≤0.04) and a resin are inserted in to the gaps. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的铁心损耗特性的直流磁偏置磁体的磁芯，在进行回流焊接时不受影响的直流叠加特性和抗氧化性，并且提供电感元件采用核心。解决方案：磁芯在磁路的至少一个或多个点处具有间隙。由具有由Sm（Fe X ） 7.4-8.2 （其中，0.18≤x≤0.24,0.06≤y≤0.09,0.02≤z≤0.04），树脂插入到间隙中。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2005264260A Soft magnetic yoke and electromagnetic actuator using the same 审中-公开
标题翻译：使用它的软磁电动机和电磁致动器
公开(公告)号：JP2005264260A
公开(公告)日：2005-09-29
申请号：JP2004080443
申请日：2004-03-19
申请人： Akihisa Inoue , Nec Tokin Corp , Necトーキン株式会社 , 明久井上
发明人： FUJIWARA TERUHIKO , URATA KENRI , INOUE AKIHISA
IPC分类号： C22C45/02 , H01F1/153 , H01F3/02 , H02K1/02
摘要： PROBLEM TO BE SOLVED: To provide a soft magnetic yoke material using a soft magnetic metal glass material having high saturated magnetic flux density and magnetic permeability, and to provide an electromagnetic actuator using the soft magnetic yoke material. SOLUTION: The soft magnetic yoke uses a soft magnetic metal glass sheet expressed by the compositional formula of (Fe 1-a-b Ni a Co b ) 100-x-y-z M x T y B z , and having a magnetic flux density of ≥1.2 T and a specific resistance of ≥1 μΩm. In the compositional formula, 0≤a≤0.30; 0≤b≤0.50; 0≤a+b≤0.50; 1 atomic%≤x≤5 atomic%; 1 atomic%≤y≤12 atomic%; 12 atomic%≤z≤25 atomic%; and also, 22≤(x+y+z)≤32; M denotes one or more kinds of elements selected from Zr, Nb, Ta, Hf, Mo, Ti, V, Cr and W; and T denotes one or more kinds of elements selected from Al, Si, C and P. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种使用具有高饱和磁通密度和磁导率的软磁金属玻璃材料的软磁轭材料，并提供使用该软磁轭材料的电磁致动器。解决方案：软磁轭使用由组成式表示的软磁金属玻璃片（Fe 1-ab Ni a Co b < SB>） 100-xyz X Z B z ，磁通密度≥1.2 T和比电阻≥1μΩm。在组成式中，0≤a≤0.30; 0≤b≤0.50; 0≤a+b≤0.50; 1原子％≤x≤5原子％ 1原子％≤y≤12原子％; 12原子％≤z≤25原子％; 22≤（x + y + z）≤32; M表示选自Zr，Nb，Ta，Hf，Mo，Ti，V，Cr和W中的一种或多种元素; 和T表示选自Al，Si，C和P的一种或多种元素。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2003257753A MAGNETIC CORE AND INDUCTANCE COMPONENT 审中-公开
公开(公告)号：JP2003257753A
公开(公告)日：2003-09-12
申请号：JP2002050989
申请日：2002-02-27
申请人： NEC TOKIN CORP
发明人： HOSHI HARUKI , ISHII MASAYOSHI , ISOTANI KEITA , FUJIWARA TERUHIKO
IPC分类号： H01F27/24 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To provide a magnetic core having excellent DC superimposition characteristics, core-loss characteristics, and heat resistance. SOLUTION: The magnetic core has a gap at one or more points of a magnetic path. A bond magnet, whose specific resistance is 1 Ωcm or higher, comprises powder of 5 kOe or higher specific coercive force, 300°C or higher Tc, 2.0-50 μm powder particle size, and 2.0 or lower average aspect ratio, and contains resin by 15% or more in volume ratio. The magnet is inserted into the gap. COPYRIGHT: (C)2003,JPO

6. 发明专利

JP2003124034A MAGNETIC CORE, INDUCTANCE PART AND THEIR MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2003124034A
公开(公告)日：2003-04-25
申请号：JP2001312724
申请日：2001-10-10
申请人： NEC TOKIN CORP
发明人： ISOTANI KEITA , FUJIWARA TERUHIKO , ISHII MASAYOSHI , HOSHI HARUKI
IPC分类号： H01F1/08 , H01F27/24
摘要： PROBLEM TO BE SOLVED: To easily manufacture a magnetic core that has superior DC superimposed characteristic, core loss characteristic and oxidation resistance, as well as an inductance part using the same, and to provide them at a low cost. SOLUTION: In a magnetic core that with a gap at least at one place of a magnetic circuit, a bond magnet is inserted in the gap and the magnet is made of rare-earth magnet powder and resin whose inherent coersive is 10 kOe or more force, Curie temperature Tc is 500 deg.C or higher, and average grain size of powder is 2.0 to 50 μm, and the surface of the rare-earth magnet powder is covered with an oxide of Al, an oxide of Mg or an oxide of Si, or an oxide film made of the oxides. In addition, the bond magnet to be inserted into the gap is made of resin of 30% or more in volume ratio and is 1 Ωcm or more in specific resistance.

7. 发明专利

JP2003109810A DUST CORE AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2003109810A
公开(公告)日：2003-04-11
申请号：JP2001302724
申请日：2001-09-28
申请人： NEC TOKIN CORP
发明人： TAKETOMI MASAYUKI , FUJIWARA TERUHIKO
IPC分类号： B22F1/00 , B22F3/00 , B22F3/24 , C21D6/00 , H01F1/22 , H01F1/26 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To improve permeability of a dust core, which is provided by pressing Fe-Si-Al alloy powder, and to reduce its loss. SOLUTION: By using liquid quenching equipment comprising twin rolls, an alloy is powdered, and the alloy powder is then mechanically ground and classified by using a screen of a mesh size of 150 μm, and thus an aspect ratio is adjusted within the range of 1 to 2. Then the alloy powder is heat-treated at 500-900 deg.C in the atmosphere to form an oxide film on the surface and thus to reduce eddy current loss and is molded at pressure ranging from 9.8 to 19.6 MPa to secure an enough compact density, and the compact is heat-treated at temperatures ranging from 500 to 1,000 deg.C to remove the distortion having occurred at a forming step.

8. 发明专利

JP2003007520A Magnetic core equipped with magnetic bias magnet and inductance part using the same 有权
标题翻译：使用磁性偏置磁体的磁芯和使用其的电感部分
公开(公告)号：JP2003007520A
公开(公告)日：2003-01-10
申请号：JP2001361355
申请日：2001-11-27
申请人： Nec Tokin Corp , エヌイーシートーキン株式会社
发明人： FUJIWARA TERUHIKO , ISHII MASAYOSHI , HOSHI HARUKI , ISOTANI KEITA , ITO TORU , ANPO TAMIKO
IPC分类号： C22C19/07 , H01F1/08 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To provide a magnetic core which is provided with at least one or more gaps in a magnetic path, equipped with a permanent magnet as a magnetic bias magnet arranged adjacent to the gap to supply a magnetic bias from the ends of the gap, and is superior in DC superimposition, core loss, and oxidation- resistant properties; and to provide an inductance part using the same. SOLUTION: An inductance part is equipped with a magnetic core at one or more magnetic gaps each about 50 to 10,000 μm in gap length in a magnetic path, a magnetic bias magnet arranged adjacent to the gap so as to supply a magnetic bias from the ends of the magnetic gap, and a coil winding wound on the magnetic core at least by one turn. The above magnetic bias magnet is formed of rare earth magnet powder coated with inorganic glass, and the rare earth magnet powder is selected from Sm-Co magnet powder, Nd-Fe-B magnet powder, and Sm-Fe-N magnet powder.
摘要翻译：要解决的问题：为了提供在磁路中设置有至少一个或多个间隙的磁芯，其配备有与间隙相邻布置的永磁体作为磁偏置磁体，以从所述磁路的端部提供磁偏压间隙，并且在DC叠加，铁芯损耗和抗氧化性能方面优越; 并提供使用其的电感部分。解决方案：电感部件在一个或多个磁隙上配备有磁芯，每个磁隙在磁路中的间隙长度为约50至10,000μm，磁偏置磁体邻近间隙布置，以便从端部提供磁偏压的磁隙和缠绕在磁芯上的线圈绕组至少一圈。上述磁偏置磁体由涂覆有无机玻璃的稀土磁体粉末形成，稀土磁体粉末选自Sm-Co磁体粉末，Nd-Fe-B磁体粉末和Sm-Fe-N磁体粉末。

9. 发明专利

JP2002289443A INDUCTOR COMPONENT 失效
公开(公告)号：JP2002289443A
公开(公告)日：2002-10-04
申请号：JP2001084268
申请日：2001-03-23
申请人： NEC TOKIN CORP
发明人： KONDO MASAHIRO , MATSUMOTO HATSUO , ITO TORU , FUJIWARA TERUHIKO , ISHII MASAYOSHI , HOSHI HARUKI , ISODA RYUTARO , SATO TADAKUNI
IPC分类号： H01F37/00
摘要： PROBLEM TO BE SOLVED: To provide an inductor component wherein a current to be handled is large, magnetic characteristics are hardly degraded and anti magnetic measures or miniaturizing/lightening can be easily attained. SOLUTION: This inductor component is provided with a drum type magnetic core 11 composed of a magnetic substance of a structure integrally having flanges of different sizes on both ends of a columnar body, a winding 12 wound around the columnar body of the core 11 and arranged while being held between the respective flanges, a sleeve core abutted to the peripheral edge of a larger flange in the core 11 around which the winding 12 is wound and arranged around a smaller flange and the winding 12, and a permanent magnet 13 which is a void inside a closed magnetic path formed of the core 11 and the sleeve core arranged around the smaller flange for impressing a DC magnetic field HM oppositely to the direction of a magnetic field HS to be generated by a magnetomotive force using the winding 12. A magnetic bias to be impressed by the magnet 13 in this case expands a usable magnetic flux density width.

10. 发明专利

JP2008118101A Inductance element, filter circuit and noise filter 有权
标题翻译：电感元件，滤波电路和噪声滤波器
公开(公告)号：JP2008118101A
公开(公告)日：2008-05-22
申请号：JP2007192344
申请日：2007-07-24
申请人： Nec Tokin Corp , Necトーキン株式会社
发明人： TAKAHASHI MASAHIKO , ONO YUJI , ARAI TOMOJI , FUJIWARA TERUHIKO
IPC分类号： H01F27/00 , H01F17/06 , H03H7/01
CPC分类号： H01F17/062 , H01F27/40 , H01G4/00 , H03H7/427 , H03H2001/0057 , H03H2001/0092
摘要： PROBLEM TO BE SOLVED: To provide an inductance element in a new structure with high degree of freedom of design and high electrical reliability. SOLUTION: The inductance element comprises a magnetic core 15a, a coil composed by winding coated conductive wires 17 and 18, a dielectric 22 provided in contact with or closely to at least a part of the coil, and a conductor 23a which forms a capacitor with the coil and the dielectric by clamping the coil and the dielectric 22 and is electrically insulated from the magnetic core 15a. COPYRIGHT: (C)2008,JPO&INPIT

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