The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
Mar. 14, 2014
Applicant:
Kabushiki Kaisha Riken, Tokyo, JP;
Inventor:
Keita Hirose, Kumagaya, JP;
Assignee:
KABUSHIKI KAISHA RIKEN, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/11 (2006.01); H05K 9/00 (2006.01); C04B 35/26 (2006.01); C01G 49/00 (2006.01);
U.S. Cl.
CPC ...
H05K 9/0081 (2013.01); C01G 49/0009 (2013.01); C04B 35/26 (2013.01); H01F 1/11 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3281 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/767 (2013.01);
Abstract
An object of the present invention is to provide, in order to deal with a high frequency band in which radio waves are expected to be increasingly used hereafter, a magnetoplumbite-type hexagonal ferrite material having significantly improved high-frequency property of magnetic permeability. Specifically, a magnetoplumbite-type hexagonal ferrite is represented by a composition formula: ABC(D1D2)FeO(where x: 0.1 to 0.3, y:0.1 to 0.5), wherein A is any one of Ba, Srand Ca, B is any one of Laand Nd, C and D1 are any one or more of Co, Mn, Mg, Zn, Cuand Ni, and D2 is any one of Tiand Zr.