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. 26, 2022
Filed:
Mar. 27, 2018
Hitachi Metals, Ltd., Tokyo, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
A sintered MnZn ferrite body containing main components comprising 53.30-53.80% by mol of Fe calculated as FeO, 6.90-9.50% by mol Zn calculated as ZnO, and the balance of Mn calculated as MnO, and sub-components comprising 0.003-0.020 parts by mass of Si calculated as SiO, more than 0 parts and 0.35 parts or less by mass of Ca calculated as CaCO, 0.30-0.50 parts by mass of Co calculated as CoO, 0.03-0.10 parts by mass of Zr calculated as ZrO, and 0-0.05 parts by mass of Ta calculated as TaO, pre 100 parts by mass in total of the main components (calculated as the oxides), and having an average crystal grain size of 3 μm or more and less than 8 μm and a density of 4.65 g/cmor more.