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:
Dec. 06, 2022
Filed:
Mar. 30, 2018
Applicant:
Powdertech Co., Ltd., Kashiwa, JP;
Inventors:
Kazutaka Ishii, Kashiwa, JP;
Koji Aga, Kashiwa, JP;
Takao Sugiura, Kashiwa, JP;
Takashi Kojima, Kashiwa, JP;
Assignee:
POWDERTECH CO., LTD., Chiba, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/11 (2006.01); B29C 41/08 (2006.01); G11B 5/706 (2006.01); G11B 5/714 (2006.01); H01F 1/113 (2006.01);
U.S. Cl.
CPC ...
H01F 1/11 (2013.01); B29C 41/08 (2013.01); G11B 5/70678 (2013.01); G11B 5/714 (2013.01); H01F 1/113 (2013.01); C01P 2004/04 (2013.01); C01P 2006/12 (2013.01); C01P 2006/42 (2013.01);
Abstract
The ferrite powder of the present invention is a ferrite powder containing a plurality of ferrite particles, wherein the ferrite particles each are a single crystal body having an average particle diameter of 1-2,000 nm, and have a polyhedron shape, and wherein the ferrite particles each contain 2.0-10.0 mass % of Sr, and 55.0-70.0 mass % of Fe.