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:
Oct. 15, 2024
Filed:
Jan. 27, 2021
Powdertech Co., Ltd., Kashiwa, JP;
Koji Aga, Kashiwa, JP;
Takashi Kojima, Kashiwa, JP;
Takao Sugiura, Kashiwa, JP;
Sho Kuwahara, Kashiwa, JP;
Satomi Konno, Kashiwa, JP;
Tadashi Tsuduki, Kashiwa, JP;
POWDERTECH CO., LTD., Kashiwa, JP;
Abstract
Provided are a ferrite powder capable of maintaining a high withstand voltage even when used in a resin composition having high magnetic properties and electrical resistivity and a high filling ratio, and a method for producing the same. A ferrite powder composed of spherical ferrite particles, wherein the ferrite powder contains iron (Fe): 55.0-70.0 mass % and manganese (Mn): 3.5-18.5 mass %, the ferrite powder containing more than 0.0 mass % to 7.5 mass % α-FeO, and the ferrite powder has a volume average particle size (D50) of 15.0 μm or less.