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Patent Agency Ranking
公开(公告)号：US11069468B2
公开(公告)日：2021-07-20
申请号：US16309109
申请日：2017-06-23
Inventor： Tomohiro Fujita , Yuji Yasuoka , Kenji Ueno , Yoshiko Higashi , Tsutomu Inuduka , Kazuhiro Okuda , Ryohei Harada
Abstract: An object of the present disclosure is to provide a common mode choke coil with high impedance and small variation. A common mode choke coil includes magnetic core having winding core part and a pair of flange parts provided on opposite ends of winding core part, external electrodes formed on each of flange parts, a pair of windings wound on winding core part, with each of the ends being drawn out and joined to one of external electrodes, and magnetic plate joined to the pair of flange parts with adhesive. Magnetic plate has joining parts joined to flange parts and opposing part opposing winding core part, and surface roughness of joining parts is smaller than surface roughness of opposing part.
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公开(公告)号：US10096417B2
公开(公告)日：2018-10-09
申请号：US15317860
申请日：2015-11-02
Inventor： Yoshiharu Omori , Kenichi Matsushima , Ryohei Harada , Kenji Ueno , Atsushi Shinkai , Nariaki Ishida , Takeshi Ichihara
Abstract: In a common mode noise filter, first coil (12) includes first coil conductor (16) and second coil conductor (17) with spiral shapes. Second coil (13) includes third coil conductor (18) and fourth coil conductor (19) with spiral shapes. First coil conductor (16), third coil conductor (18), second coil conductor (17), and fourth coil conductor (19) are placed in this order from above. First metal layer (14) configured to be connected to a ground is provided above first coil conductor (16).
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公开(公告)号：US10366821B2
公开(公告)日：2019-07-30
申请号：US15544647
申请日：2016-01-12
Inventor： Atsushi Shinkai , Kenji Ueno
Abstract: A common mode noise filter of the present disclosure includes: a first insulating layer; a second insulating layer formed under the first insulating layer; a first coil including a first coil conductor and a second coil conductor, the first coil conductor being electrically connected to the second coil conductor; a second coil including a third coil conductor and a fourth coil conductor, the third coil conductor being electrically connected to the fourth coil conductor; and a third coil including a fifth coil conductor and a sixth coil conductor, the fifth coil conductor being electrically connected to the sixth coil conductor. Further, the first coil conductor, the third coil conductor, and the fifth coil conductor are sequentially formed on the first insulating layer from the outer side. The sixth coil conductor, the fourth coil conductor, and the second coil conductor are sequentially formed on second insulating layer from the outer side.
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公开(公告)号：US10305441B2
公开(公告)日：2019-05-28
申请号：US15549391
申请日：2015-12-07
Inventor： Yoshiharu Omori , Kenichi Matsushima , Masakatsu Nawate , Ryohei Harada , Kenji Ueno
Abstract: A common mode noise filter includes first to fourth insulator layers stacked in a stacking direction and first to third coils provided on the first to fourth insulator layers independently of one another. The first coil includes a first coil conductor provided on the first insulator layer and a second coil conductor provided on the fourth insulator layer and connected to the first coil conductor. The second coil is provided on the second insulator layer. The third coil is provided on the third insulator layer. The first coil conductor overlaps the second coil viewing from above. At least a part of the second coil overlaps at least a part of the third coil viewing from above. The second coil conductor overlaps the third coil viewing from above.
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公开(公告)号：US10147534B2
公开(公告)日：2018-12-04
申请号：US15525491
申请日：2015-06-24
Inventor： Yoshiharu Omori , Takeshi Ichihara , Kenji Ueno
Abstract: A common mode noise filter includes a first coil and a second coil. The first coil is formed in a plurality of insulating layers and includes a spiral first coil conductor and a spiral second coil conductor. The second coil is formed in the plurality of insulating layers and includes a spiral third coil conductor and a spiral fourth coil conductor. The first and third coil conductors are magnetically coupled to form a first common mode filter unit, and the second and fourth coil conductors are magnetically coupled to form a second common mode filter unit. As viewed from above, a first direction in which currents flow through the first and third coil conductors in the first common mode filter unit is opposite to a second direction in which currents flow through the second and fourth coil conductors in the second common mode filter unit.
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