公开(公告)号：US20190304662A1

公开(公告)日：2019-10-03

申请号：US16367787

申请日：2019-03-28

Applicant: TODA KOGYO CORP. ,  Securitag Assembly Group Co., Ltd.

Inventor： Jun KOUJIMA ,  Mark CHANG ,  Yoshiteru KOUNO ,  Peter Yan

IPC: H01F27/28 ,  H01F17/00 ,  H01F27/29 ,  H05K1/02 ,  H05K1/16 ,  H05K1/18

Abstract: A module substrate antenna includes: a laminate in which a plurality of ferrite layers are stacked; antennal coils provided on surfaces of the respective ferrite layers; a connection pad connected to an external circuit; and a lead wire provided between the laminate and the connection pad. In the laminate, the antenna coils are two types of the antenna coils, and the two types of the antenna coils are alternately stacked.

公开(公告)号：US20190393605A1

公开(公告)日：2019-12-26

申请号：US16481900

申请日：2018-01-29

Applicant: TODA KOGYO CORP.

Inventor： Satoshi NOMURA ,  Jun KOUJIMA ,  Yasushi NISHIO ,  Manato NAKATSUKASA ,  Yasuhiko FUJII

IPC: H01Q7/06 ,  H01Q1/22 ,  G06K19/077

Abstract: The present invention relates to an electronic component, and also relates to an antenna for information communication using a magnetic field component, which is capable of satisfying both of downsizing and improvement in communication sensitivity. The electronic component of the present invention comprises a ferrite core and a coil, in which a ferrite constituting the ferrite core has a spinel structure and comprises Fe, Ni, Zn, Cu and Co as constitutional metal elements, and when contents of the respective constitutional metal elements in the ferrite are calculated in terms of Fe2O3, NiO, ZnO, CuO and CoO, contents of Fe2O3, NiO, ZnO, CuO and CoO in the ferrite are 46 to 50 mol %, 20 to 27 mol %, 15 to 22 mol %, 9 to 11 mol % and 0.01 to 1.0 mol %, respectively, based on a total content of Fe2O3, NiO, ZnO, CuO and CoO.

公开(公告)号：US20230006352A1

公开(公告)日：2023-01-05

申请号：US17756369

申请日：2020-12-01

Applicant: TODA KOGYO CORP.

Inventor： Jun KOUJIMA

IPC: H01Q7/00 ,  H05K1/02

Abstract: A module substrate antenna (1) includes a first coil (7) and a second coil (8) that are connected in parallel. The first coil (7) is composed of a pattern in which a spiral first antenna coil pattern (3a) and a spiral second antenna coil pattern (5a) are interlayer-connected in series. The second coil (8) is composed of a pattern in which a spiral third antenna coil pattern (4a) and a spiral fourth antenna coil pattern (6a) are interlayer-connected in series. The coil patterns are arranged in order of the first antenna coil pattern (3a), the third antenna coil pattern (4a), the second antenna coil pattern (5a), and the fourth antenna coil pattern (6a).