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. 25, 2023
Filed:
Sep. 02, 2020
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Norihiro Nakai, Nagaokakyo, JP;
Nobuyuki Fujisawa, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A ferrite core includes a ferrite sintered body in which integrally formed are a winding core portion, extending in a lengthwise direction, and flange portions provided at both ends in the lengthwise direction of the winding core portion and projecting from the winding core portion in at least a height direction orthogonal to the lengthwise direction. Pores are present inside the winding core portion and the flange portions, and an abundance ratio of the pores in the winding core portion is equal to or more than about 0.05% and equal to or less than about 1.00% (i.e., from about 0.05% to about 1.00%).