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81. 发明专利

JP2006332454A Compact magnetic element 审中-公开
标题翻译：紧凑型磁性元件
公开(公告)号：JP2006332454A
公开(公告)日：2006-12-07
申请号：JP2005155991
申请日：2005-05-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： FUKUDA YASUTAKA
IPC分类号： H01F38/02 , H01F1/053 , H01F17/04
摘要： PROBLEM TO BE SOLVED: To improve allowable currents without damaging the miniaturization of a flat magnetic element. SOLUTION: A permanent magnet thin board is respectively arranged on the outer surfaces of the upper and lower magnetic layers of a flat magnetic element configure such that a flat coil is interposed by the upper and lower magnetic layers. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了改善容许电流而不损坏平坦磁性元件的小型化。解决方案：在扁平磁性元件的上下磁性层的外表面上分别设置永磁体薄板，使得平坦的线圈被上下磁性层插入。版权所有（C）2007，JPO＆INPIT

82. 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

83. 发明专利

JP2005039229A Power inductor reduced in dc current saturation 审中-公开
标题翻译：功率电感减少直流电流饱和
公开(公告)号：JP2005039229A
公开(公告)日：2005-02-10
申请号：JP2004178924
申请日：2004-06-16
申请人： Marvell World Trade Ltd , マーベルワールドトレードリミテッド
发明人： SUTARDJA SEHAT
IPC分类号： H01F27/24 , H01F3/10 , H01F3/14 , H01F17/06 , H01F27/255 , H01F27/34 , H01F37/00 , H01F38/02
CPC分类号： H01F3/14 , H01F3/10 , H01F17/06 , H01F27/34 , H01F37/00 , H01F38/023 , Y10T29/4902 , Y10T29/49069 , Y10T29/49071 , Y10T29/49073
摘要： PROBLEM TO BE SOLVED: To provide a power inductor that can reduce the possibility of occurring the saturation of a magnetic core material. SOLUTION: This power inductor is provided with a first magnetic core having first and second ends. The first magnetic core contains a ferrite bead core material. An internal cavity provided in the material of the first magnetic core is extended from the first end to the second end. A conductor is passed through the internal cavity. A slotted air gap provided in the material of the first magnetic core is also extended from the first end to the second end. A second magnetic core is disposed in the slotted air gap or adjacently to the air gap and has lower magnetic permeability than the first magnetic core has. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够降低发生磁芯材料的饱和的可能性的功率电感器。解决方案：该功率电感器设置有具有第一和第二端的第一磁芯。第一磁芯包含铁氧体磁珠芯材料。设置在第一磁芯的材料中的内部空腔从第一端延伸到第二端。导体穿过内部空腔。设置在第一磁芯的材料中的开槽气隙也从第一端延伸到第二端。第二磁芯设置在开槽空隙中或与气隙相邻，并且具有比第一磁芯具有更低的磁导率。版权所有（C）2005，JPO＆NCIPI

84. 发明专利

JP2004047910A Reactor 有权
公开(公告)号：JP2004047910A
公开(公告)日：2004-02-12
申请号：JP2002206419
申请日：2002-07-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： IMANAKA AKIRA , NISHIHIRO AKINORI , OGAMI MASAKATSU , KATO MASANORI , NAKAHARA YUJI , AKITA HIROYUKI , TANI YOSHIHIRO
IPC分类号： H01F27/24 , H01F37/00 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To provide a reactor for which points to apply shaking force are dispersed, the vibration of a core and noise are suppressed, and a process of laminating planar cores is simplified. SOLUTION: The reactor is provided with two kinds of the planar cores which are the planar core 1 in a recessed shape with the side legs of a dimension h1 at both ends of the upper part of a bottom side part and the planar core 2, in a chevron shape with the center leg 2c of a dimension longer than 2×h1 at the upper center part of the bottom side part 1a of the planar core 1 in the recessed shape. By abutting the upper part of the bottom side part 1a of the planar core 1 in the recessed shape and the center leg 2c of the planar core 2 in the chevron shape and alternately laminating the planar core 1 in the recessed shape and the planar core 2 in the chevron shape, a core structure 3a is constituted. COPYRIGHT: (C)2004,JPO

85. 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

86. 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。

87. 发明专利

JP2002359127A CORE, COIL COMPONENT USING CORE AND POWER SUPPLY CIRCUIT 失效
公开(公告)号：JP2002359127A
公开(公告)日：2002-12-13
申请号：JP2001165419
申请日：2001-05-31
申请人： NEC TOKIN CORP
发明人： KONDO MASAHIRO , MATSUMOTO HATSUO
IPC分类号： H01F37/00 , H01F21/08 , H01F30/00 , H01F38/02 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a core, a coil component using the core and a power supply circuit which are extremely profitable in industry since they realize miniaturization and low loss of a coil component such as a core, a transformer and a chalk coil used for a switching power supply or the like and remarkably improve simplification, miniaturization, efficiency, resource saving and reliability of a power supply circuit. SOLUTION: A permanent magnet 13 is disposed in at least one or more clearance of a magnetic body which is a core of a closed magnetic path and has soft magnetic characteristics forming a magnetic path in the closed magnetic path.

88. 发明专利

JP2002359126A INDUCTANCE COMPONENT 失效
公开(公告)号：JP2002359126A
公开(公告)日：2002-12-13
申请号：JP2001163302
申请日：2001-05-30
申请人： NEC TOKIN CORP
发明人： SATO MIZUHO , OKITA KAZUYUKI , ITO TORU , DAIGAKU HAJIME
IPC分类号： H01F1/06 , H01F3/14 , H01F17/04 , H01F21/08 , H01F27/34 , H01F29/14 , H01F37/00 , H01F38/02
摘要： PROBLEM TO BE SOLVED: To provide an inductance component which can obtain proper magnetic bias effect by increasing an insertion amount of a permanent magnet without changing a gap amount. SOLUTION: A permanent magnet 13 is disposed in a gap t1 between cores 11, 12 whereto a coil 14 is applied. The sectional area of the permanent magnet is designed larger than the sectional area of a magnetic path.

89. 发明专利

JP3090279B2 失效
公开(公告)号：JP3090279B2
公开(公告)日：2000-09-18
申请号：JP8286891
申请日：1991-03-25
IPC分类号： H01F38/02

90. 发明专利

JP3072874B2 失效
公开(公告)号：JP3072874B2
公开(公告)日：2000-08-07
申请号：JP23184092
申请日：1992-08-31
IPC分类号： H01F27/34 , H01F27/08 , H01F30/08 , H01F38/02 , H02H9/02

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