公开(公告)号：US20210391107A1

公开(公告)日：2021-12-16

申请号：US17336218

申请日：2021-06-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenji TANAKA ,  Naoyuki MURAKAMI

IPC: H01F17/00 ,  H01F27/28 ,  H01F27/29

Abstract: A common mode choke coil includes an element body of laminated insulating layers; electrically insulated first and second coils in the element body; first and second outer electrodes on the element body electrically connected to ends of the first coil; and third and fourth outer electrodes on the element body electrically connected to ends of the second coil. The first coil includes first to third coil conductors on first to third insulating layers. The second coil includes fourth to sixth coil conductor on fourth to sixth insulating layers. The second and third coil conductors are electrically connected via a via conductor overlapping at outer ends of the conductors. A dummy conductor overlapping the via conductor is provided on at least one of the first, fourth, fifth, and sixth insulating layers other than between the second and third insulating layers and electrically insulated from all the coil conductors.

公开(公告)号：US20200294713A1

公开(公告)日：2020-09-17

申请号：US16814893

申请日：2020-03-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Naoyuki MURAKAMI

IPC: H01F27/32 ,  C03C3/091 ,  C03C4/16 ,  C03B19/06 ,  H01F27/29 ,  H01F27/28 ,  H01F17/00

Abstract: A multilayer coil component includes a component element assembly in which an inner conductor is disposed and an outer electrode disposed on the surface of the component element assembly. The component element assembly includes a first dielectric glass layer in which the inner conductor is embedded and second dielectric glass layers that are thin layers disposed on respective principal surfaces of the first dielectric glass layer. The primary component of each of the first dielectric glass layer and the second dielectric glass layers is formed of a glass material and has a filler component containing at least quartz, and the second dielectric glass layers have a lower quartz content than the first dielectric glass layer.

公开(公告)号：US20180350499A1

公开(公告)日：2018-12-06

申请号：US15991857

申请日：2018-05-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kouhei MATSUURA ,  Morihiro HAMANO ,  Keiichi TSUDUKI ,  Naoyuki MURAKAMI

IPC: H01F17/00 ,  H01F27/28 ,  H01F27/29 ,  H01G4/012 ,  H03H7/01 ,  H01G4/232 ,  H01G4/40

Abstract: An electronic component includes a multilayer body obtained by laminating a plurality of insulator layers the shape of which is substantially rectangular in plan view, a coil conductor in a substantially spiral shape provided on an insulator layer, and a land electrode located outside the coil conductor. The land electrode faces two sides intersecting at a vertex of the substantially rectangular shape when viewed along a direction of laminating the insulator layers, and is electrically connected to an end portion of the coil conductor, in which a shortest distance from one side of the two sides to the land electrode is equal to or longer than a shortest distance from the coil conductor to the one side.