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:
Nov. 05, 2024
Filed:
Jan. 22, 2021
Applicant:
Powdertech Co., Ltd., Kashiwa, JP;
Inventors:
Takashi Kojima, Kashiwa, JP;
Koji Aga, Kashiwa, JP;
Assignee:
POWDERTECH CO., LTD., Kashiwa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 49/00 (2006.01); H01F 1/34 (2006.01); H01F 1/37 (2006.01);
U.S. Cl.
CPC ...
C01G 49/0072 (2013.01); H01F 1/344 (2013.01); H01F 1/37 (2013.01); C01P 2004/32 (2013.01); C01P 2004/61 (2013.01); C01P 2006/42 (2013.01);
Abstract
Provided are a ferrite powder that suppresses decreases in saturation magnetization and decreases in filler filling ratio and also suppresses inhibition of resin curing, and a method for producing the same. A ferrite powder composed of spherical ferrite particles, wherein the ferrite powder contains iron (Fe) 54.0-70.0 mass % and manganese (Mn) 3.5-18.5 mass %, has an average volume particle size of 2.0-20.0 μm, and has a carbon content of 0.100 mass % or lower.