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11.发明申请公开(公告)号：US20200051720A1
公开(公告)日：2020-02-13
申请号：US16534339
申请日：2019-08-07
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Xinyu LI , Yoko ORIMO , Shinsuke TAKEOKA
IPC: H01F1/147 , H01F27/255 , H01F41/02 , H01F27/28
Abstract: A magnetic base body according to an embodiment of the present invention includes a metal magnetic particle and an amorphous silicon oxide film provided on a surface of the metal magnetic particle, the amorphous silicon oxide film having a structural defect introduced therein.
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公开(公告)号：US20190295764A1
公开(公告)日：2019-09-26
申请号：US16292720
申请日：2019-03-05
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Takashi NAKAJIMA , Naoya TERAUCHI , Shinsuke TAKEOKA
Abstract: In an exemplary embodiment, a coil component includes: an element body part 10 that contains magnetic metal grains and nonmagnetic materials and has insulation property; and a coil 30 embedded in the element body part 10 and formed by a winding conductor. The element body part 10 has a main part 11 and a low magnetic permeability part 50 whose relative permeability is lower than that of the main part 11; the coil 30 has a first surface 36 and a second surface 38 respectively representing surfaces positioned on opposite sides in the direction of the coil axis and intersecting the coil axis; and the low magnetic permeability part 50 is provided between a first plane 37 flush with the first surface 36, and a second plane 39 flush with the second surface 38, in a manner away from the first plane 37 and the second plane 39.
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公开(公告)号：US20180114627A1
公开(公告)日：2018-04-26
申请号：US15849966
申请日：2017-12-21
Applicant: Taiyo Yuden Co., Ltd.
Inventor： Takayuki ARAI , Ryuichi KONDOU , Akiko YAMAGUCHI , Shinsuke TAKEOKA , Kazuhiko OYAMA , Kenji OTAKE
IPC: H01F27/245 , H01F27/29 , H01F17/04 , H01F1/03 , H01F1/28 , H01F27/28 , H01F17/00 , H01F27/255
CPC classification number: H01F27/245 , H01F1/0306 , H01F1/28 , H01F5/00 , H01F17/0013 , H01F17/04 , H01F27/255 , H01F27/2804 , H01F27/29 , H01F27/292
Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The three or more magnetic alloy particles have an average particle diameter of 4 μm or smaller. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
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公开(公告)号：US20160293321A1
公开(公告)日：2016-10-06
申请号：US15087612
申请日：2016-03-31
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Shinsuke TAKEOKA , Akiko YAMAGUCHI , Kenji OTAKE
IPC: H01F27/28 , H01F1/14 , H01F27/255
CPC classification number: H01F1/14 , H01F27/255 , H01F41/0246
Abstract: In an embodiment, a coil component includes a magnetic body, and an internal conductor 21 having a center axis and formed in a spiral shape; wherein the internal conductor 21 is embedded in the magnetic body; in a cross sectional view of a plane that includes the center axis extending in the vertical direction, wherein a conductor region part 11 positioned between the adjacent windings of the spiral shape has a higher oxygen content than that of a core part 12 including the center axis and positioned on the inner side of the windings of the spiral shape. the magnetic body is constituted by iron-based soft magnetic grains and oxide film of at least one type of element that oxidizes more easily than iron, which oxide film bonds at least partly the iron-based soft magnetic grains.
Abstract translation: 在一个实施例中，线圈部件包括磁体和具有中心轴线并形成为螺旋形状的内部导体21; 其中内部导体21嵌入在磁体中; 在包括沿垂直方向延伸的中心轴的平面的横截面图中，位于螺旋形状的相邻绕组之间的导体区域部分11具有比包括中心轴线的芯部12的氧含量更高的氧含量 并且位于螺旋形状的绕组的内侧。 磁性体由铁系软磁性粒子和至少一种类型的元素的氧化膜构成，该氧化膜比铁更容易氧化，该氧化膜至少部分地与至少部分地与铁基软磁性粒子结合。
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公开(公告)号：US20230068049A1
公开(公告)日：2023-03-02
申请号：US17972441
申请日：2022-10-24
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Kazuki MISAWA , Kinshiro TAKADATE , Shinsuke TAKEOKA
Abstract: A method for manufacturing a coil component includes: providing multiple metal magnetic grains; preparing a magnetic body paste by mixing the multiple metal magnetic grains, a binder resin containing a resinate having at least one element selected from the group consisting of Si, Al, Cr, Mg, Ti, and Zr, and a solvent; forming a compact using the magnetic body paste; heat-treating the compact to form, on surfaces of the metal magnetic grains, bonding parts constituted by an amorphous oxide containing carbon and the at least one element, thereby forming a magnetic base body wherein the multiple metal magnetic grains are bonded via the bonding parts; forming a coil that includes a metal conductor; and forming external eletrodes on surfaces of the magnetic base body and connecting end parts of the coil to the external electrodes, respectively.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20200312498A1
公开(公告)日：2020-10-01
申请号：US16832445
申请日：2020-03-27
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Kinshiro TAKADATE , Shinsuke TAKEOKA
IPC: H01F1/147 , H01F27/32 , H01F27/255 , H01F41/12 , H01F41/02
Abstract: A magnetic base body relating to one embodiment of the present invention includes a main body and an oxide film formed on the surface of the main body. The main body includes an oxide phase containing Si and a plurality of metal magnetic particles bound via the oxide phase. In the metal magnetic particles, Fe accounts for 98.5 wt % or more. When an XRD diffraction pattern of the magnetic base body is observed, a ratio Ia/Ib is 10 or more where Ia denotes an integrated intensity of peaks derived from the (220) plane of Fe2O3 and Ib denotes an integrated intensity of peaks derived from the (104) plane of Fe3O4.
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17.发明申请公开(公告)号：US20200279677A1
公开(公告)日：2020-09-03
申请号：US16798904
申请日：2020-02-24
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Yoko ORIMO , Shinsuke TAKEOKA
Abstract: A magnetic body is constituted by grains of a soft magnetic alloy bonded together via an oxide layer, wherein: the soft magnetic alloy is an alloy containing Si by 1 to 5.5 percent by mass, and Cr or Al by 0.2 to 4 percent by mass in total, as constituent elements, with Fe and unavoidable impurities accounting for the remainder; and the oxide layer contains Si, as well as at least one of Cr and Al, where, among Fe, Si, Cr, and Al, Si is contained in the largest quantity based on mass. The magnetic body can have high magnetic permeability.
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公开(公告)号：US20180005739A1
公开(公告)日：2018-01-04
申请号：US15638100
申请日：2017-06-29
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Yoko ORIMO , Xinyu LI , Shinsuke TAKEOKA , Chengli HE , Kenji OTAKE
Abstract: A magnetic material has: multiple soft magnetic alloy grains that contain Fe, element L (where element L is Si, Zr, or Ti), and element M (where element M is not Si, Zr, or Ti, and oxidizes more easily than Fe); a first oxide film that contains element L and covers each of the multiple soft magnetic alloy grains; a second oxide film that contains element M and covers the first oxide film; a third oxide film that contains element L and covers the second oxide film; a fourth oxide film that contains Fe and covers the third oxide film; and bonds that are constituted by parts of the fourth oxide film and that bond the multiple soft magnetic alloy grains together.
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公开(公告)号：US20170365386A1
公开(公告)日：2017-12-21
申请号：US15618009
申请日：2017-06-08
Applicant: TAIYO YUDEN CO., LTD.
Inventor： Takayuki ARAI , Hirotaro SEINO , Shinsuke TAKEOKA , Natsuko SATO , Masanori NAGANO , Kenji OTAKE
IPC: H01F1/147 , H01F41/04 , H01F27/255 , H01F27/245 , H01F27/28 , H01F27/32 , H01F41/02
Abstract: A coil component that can be made thinner while ensuring sufficient magnetic characteristics includes a magnetic part, a conductor part, and multiple insulator parts. The magnetic part is constituted by magnetic alloy grains. The conductor part has multiple winding parts and is wound around one axis inside the magnetic part. The multiple insulator parts are each placed between the multiple winding parts, each having a winding shape that includes two joining surfaces that are respectively joined to two winding parts facing each other at least partially in the direction of the one axis, and are each constituted by electrically insulating grains.
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公开(公告)号：US20170140864A1
公开(公告)日：2017-05-18
申请号：US15275924
申请日：2016-09-26
Applicant: Taiyo Yuden Co., Ltd.
Inventor： Takayuki ARAI , Ryuichi KONDOU , Akiko YAMAGUCHI , Shinsuke TAKEOKA , Kazuhiko OYAMA , Kenji OTAKE
IPC: H01F27/245 , H01F27/29 , H01F1/03 , H01F27/28
CPC classification number: H01F27/245 , H01F1/0306 , H01F1/28 , H01F5/00 , H01F17/0013 , H01F17/04 , H01F27/255 , H01F27/2804 , H01F27/29 , H01F27/292
Abstract: One object is to provide a laminated inductor having a reduced thickness without reduction in the magnetic characteristic and the insulation quality. The laminated inductor includes a first magnetic layer, an internal conductor, second magnetic layers, third magnetic layers, and a pair of external electrodes. The first magnetic layer has a thickness of 4 to 19 μm, and includes three or more magnetic alloy particles arranged in the thickness direction and an oxide film binding the magnetic alloy particles together and containing Cr. The internal conductor includes a plurality of conductive patterned portions electrically connected to each other via the first magnetic layer. The second magnetic layers are composed of magnetic alloy particles and disposed around the conductive patterned portions. The third magnetic layers are composed of magnetic alloy particles and disposed so as to be opposed to each other in thickness direction.
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