公开(公告)号：US12243670B2

公开(公告)日：2025-03-04

申请号：US17266693

申请日：2019-11-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuji Kawashima ,  Masakatsu Nawate ,  Yu Onodera ,  Hideki Tanaka

IPC: H01F27/29 ,  H01F17/00 ,  H01F17/04 ,  H01F27/28 ,  H03H7/09 ,  H03H7/42

Abstract: An object of the present disclosure is to provide a common mode noise filter that can be used in a high-frequency band. The common mode noise filter of the present disclosure includes first to fifth insulator layers and stacked body in which first to fifth insulator layers are stacked along a vertical direction. The common mode noise filter further includes first spiral conductor and second spiral conductor that are formed inside stacked body and face each other across first insulator layer. The common mode noise filter further includes first pad connected to an inner end of first spiral conductor and second pad connected to an inner end of second spiral conductor. Neither first pad nor second pad overlaps each of first spiral conductor and second spiral conductor in top view.

公开(公告)号：US10305441B2

公开(公告)日：2019-05-28

申请号：US15549391

申请日：2015-12-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiharu Omori ,  Kenichi Matsushima ,  Masakatsu Nawate ,  Ryohei Harada ,  Kenji Ueno

IPC: H03H7/09 ,  H03H7/01 ,  H03H7/42 ,  H01F17/00 ,  H03H1/00

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.

公开(公告)号：US10439584B2

公开(公告)日：2019-10-08

申请号：US16062043

申请日：2017-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiharu Oomori ,  Atsushi Shinkai ,  Masakatsu Nawate

IPC: H03H7/09 ,  H03H7/42 ,  H01F17/04 ,  H01F17/00 ,  H01F27/29 ,  H03H1/00

Abstract: A common mode noise filter includes a laminated body having insulator layers therein and first and second spiral conductors provided on layer planes different from each other. The first spiral conductor includes a first spiral conductor line, a first pad provided at an outer end of the first spiral conductor line, and a second pad provided at an inner end of the first spiral conductor line. The second spiral conductor includes a second spiral conductor line, a third pad provided at an outer end of the second spiral conductor line, and a fourth pad provided at an inner end of the second spiral conductor line. The first spiral conductor line faces the second spiral conductor line. Each of the second pad and the sixth pad overlaps none of the fourth pad and the eighth pad viewing from above.