公开(公告)号：US11069468B2

公开(公告)日：2021-07-20

申请号：US16309109

申请日：2017-06-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomohiro Fujita ,  Yuji Yasuoka ,  Kenji Ueno ,  Yoshiko Higashi ,  Tsutomu Inuduka ,  Kazuhiro Okuda ,  Ryohei Harada

IPC: H01F17/04 ,  H01F27/29 ,  H01F41/02 ,  H01F17/00

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.

公开(公告)号：US11037726B2

公开(公告)日：2021-06-15

申请号：US16344355

申请日：2017-11-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuji Yasuoka ,  Tomohiro Fujita ,  Takeyuki Fujii ,  Toru Inoue ,  Chikara Nara ,  Makoto Itou

IPC: H01F7/06 ,  H01F41/06 ,  H01F17/04 ,  H01F27/29 ,  H01F41/02 ,  H01F41/04 ,  H01F17/00

Abstract: A magnetic core includes a winding core and first and second flanges connected to the winding core. First and second terminal electrodes are connected to a lead frame. The first flange is bonded to the first and second terminal electrodes. Third and fourth terminal electrodes are bonded to the second flange. First and second insulation-coated conductive wires are wound about the winding core. The first and second insulation-coated conductive wires are connected to the first and second terminal electrodes and the third and fourth terminal electrodes. The lead frame is bent so as to rotate the magnetic core by 90 degrees with respect to the lead frame. A magnetic plate is bonded to the magnetic core. The magnetic core is removed from the lead frame by removing the first and second terminal electrodes from the lead frame, thereby providing a common-mode choke coil. The common-mode choke coil having stable electrical performance is produced efficiently by the above method.

公开(公告)号：US10141088B2

公开(公告)日：2018-11-27

申请号：US15527319

申请日：2016-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naohiro Mikamoto ,  Fuyuki Abe ,  Yuji Yasuoka ,  Akimitsu Fujii ,  Shogo Nakayama ,  Takeshi Iseki

IPC: H01C1/084 ,  G01R1/20 ,  H01C1/028 ,  H01C1/14 ,  H01C7/00 ,  H01C7/06 ,  H01C1/032

Abstract: A resistor includes a resistive element, a first resin substrate on an upper surface of the resistive element and having a high thermal conductivity, a first heat radiator plate made of metal provided on an upper surface of the first resin substrate, a second heat radiator plate made of metal provided on the upper surface of the first resin substrate, a first edge-surface electrode provided on the first edge surface of the resistive element and connected to the first heat radiator plate, and a second edge-surface electrode provided on the second edge surface of the resistive element and connected to the second heat radiator plate.