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:
May. 19, 2026
Filed:
Aug. 16, 2021
Applicant:
Tokin Corporation, Shiroishi, JP;
Inventors:
Assignee:
TOKIN CORPORATION, Shiroishi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/34 (2006.01); C01G 49/00 (2006.01); C04B 35/26 (2006.01);
U.S. Cl.
CPC ...
C04B 35/2658 (2013.01); C01G 49/0018 (2013.01); H01F 1/344 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3251 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/3275 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/3418 (2013.01);
Abstract
A MnZn-based ferrite that can reduce the loss even when a high-frequency voltage fluctuation occurs is provided. The above MnZn-based ferrite is a MnZn-based ferrite including Fe2O3, ZnO, and MnO as main components, in which of Fe2O3 is 53.2 to 56.3 mol % and ZnO is 1.0 to 9.0 mol %, with a balance of MnO, in 100 mol % of the main components, and the MnZn-based ferrite includes 0.9 to 2.0% by mass of CoO, 0.005 to 0.06% by mass of SiO, and 0.01 to 0.06% by mass of CaO, as auxiliary components, per 100% by mass of the main components.