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：US20170221619A1

公开(公告)日：2017-08-03

申请号：US15515003

申请日：2015-09-29

Applicant: TODA KOGYO CORP.

Inventor： Yasushi NISHIO ,  Satoshi NOMURA ,  Yasuhiko FUJII ,  Hiromitsu SAKURAI

IPC: H01F1/113 ,  C08K3/00 ,  C01G49/00

CPC classification number: H01F1/113 ,  C01G49/0018 ,  C01P2002/70 ,  C01P2004/61 ,  C01P2006/42 ,  C08K3/01 ,  C08K2201/01 ,  H01F1/11

Abstract: The object of the present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which is capable of obtaining a bonded magnet molded product having a good magnetic force and a magnetic waveform as well as high iHc and Hk by injection molding. The present invention aims at providing a bonded magnet molded product using the ferrite particles and the resin composition. The aforementioned object of the present invention can be achieved by ferrite particles for bonded magnets which have a crystal distortion of not more than 0.14 as measured by XRD, and an average particle diameter of not less than 1.30 μm as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the resin composition.