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:
Jul. 27, 2021
Filed:
Apr. 11, 2017
Applicant:
Powdertech Co., Ltd., Kashiwa, JP;
Inventors:
Koji Aga, Kashiwa, JP;
Tetsuya Igarashi, Kashiwa, JP;
Assignee:
Powdertech Co., Ltd., Kashiwa, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01G 49/00 (2006.01); H01F 1/20 (2006.01); C01G 49/02 (2006.01); A47J 36/02 (2006.01); C08K 3/22 (2006.01); C08L 101/00 (2006.01); H01F 1/37 (2006.01); H05B 6/74 (2006.01); C08K 7/16 (2006.01);
U.S. Cl.
CPC ...
C01G 49/02 (2013.01); A47J 36/02 (2013.01); C01G 49/00 (2013.01); C08K 3/22 (2013.01); C08L 101/00 (2013.01); H01F 1/37 (2013.01); H05B 6/74 (2013.01); C08K 7/16 (2013.01); C08K 2003/2265 (2013.01);
Abstract
Ferrite powder of the present invention is ferrite powder detectable with a metal detector, comprising: soft ferrite particles containing Mn of 3.5 mass % or more and 20.0 mass % or less and Fe of 50.0 mass % or more and 70.0 mass % or less. It is preferable that a volume average particle diameter of the particles constituting the ferrite powder is 0.1 μm or more and 100 μm or less. It is preferable that magnetization by a VSM measurement when magnetic field of 5 K·1000/4πA/m is applied is 85 A·m/kg or more and 98 A·m/kg or less.