公开(公告)号：US20170373396A1

公开(公告)日：2017-12-28

申请号：US15697663

申请日：2017-09-07

Applicant: Murata Manufacturing Co., Ltd.

Inventor： NOBORU KATO ,  Masahiro Ozawa

IPC: H01Q7/08 ,  H01F27/00 ,  H01F27/28 ,  H01Q1/24 ,  H01F17/04 ,  H01F27/34 ,  H01F17/00

CPC classification number: H01Q7/08 ,  H01F17/0013 ,  H01F17/02 ,  H01F17/04 ,  H01F17/045 ,  H01F27/006 ,  H01F27/28 ,  H01F27/34 ,  H01F2027/2814 ,  H01Q1/24 ,  H01Q1/243 ,  H01Q7/00

Abstract: A coil device has a plate-like element body having a main surface, a back surface, and an end surface, a helical coil provided in the element body and having a coil axis extending between the main surface and the back surface, and a connection terminal provided on the back surface or the end surface of the element body and connected to the helical coil. As for a conductor constituting the helical coil, a plurality of conductor portions extending along the main surface are comprised of a plurality of metal pins, respectively.

公开(公告)号：US20180144225A1

公开(公告)日：2018-05-24

申请号：US15869448

申请日：2018-01-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： NOBORU KATO

IPC: G06K19/077 ,  H01Q1/38 ,  H01Q9/28 ,  H01Q9/04

CPC classification number: G06K19/077 ,  H01Q1/2225 ,  H01Q1/38 ,  H01Q9/0485 ,  H01Q9/26 ,  H01Q9/285

Abstract: A wireless communication device is provided that has a dielectric member attached to a metal surface of an article, an RFIC element including first and second terminal electrodes, a first radiation electrode disposed on the dielectric member in parallel with and oppositely to the metal surface of the article at a predetermined distance and connected to the first terminal electrode of the RFIC element, and a second radiation electrode disposed on the dielectric member in parallel with and oppositely to the metal surface of the article at the predetermined distance and connected to the second terminal electrode of the RFIC element independently of the first radiation electrode. The first and second radiation electrodes extend in respective directions intersecting with each other, with the first radiation electrode having a smaller width and a shorter length in an extending direction than the second radiation electrode.

公开(公告)号：US20180137399A1

公开(公告)日：2018-05-17

申请号：US15869530

申请日：2018-01-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： NOBORU KATO

IPC: G06K19/077 ,  H01Q19/00 ,  H01Q1/22 ,  H01Q1/38 ,  H01Q19/26

Abstract: A wireless communication device is provided that has an RFIC element including first and second terminal electrodes, a first radiation electrode connected to the first terminal electrode of the RFIC element, a second radiation electrode disposed in the same layer as the first radiation electrode independently of the first radiation electrode and connected to the second terminal electrode of the RFIC element, and a back surface electrode disposed oppositely to the second radiation electrode at a distant and connected to the second radiation electrode. Moreover, an area of a portion of the back surface electrode opposite to the first radiation electrode is smaller than an area of a portion of the back surface electrode opposite to the second radiation electrode.