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. 27, 2008
Filed:
Oct. 26, 2005
Ryuichi Wada, Tokyo, JP;
Takuya Aoki, Tokyo, JP;
Atsuhito Matsukawa, Tokyo, JP;
Kensaku Asakura, Tokyo, JP;
Ryuichi Wada, Tokyo, JP;
Takuya Aoki, Tokyo, JP;
Atsuhito Matsukawa, Tokyo, JP;
Kensaku Asakura, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A ferrite material of the present invention is configured such that 0.05 to 1.0 wt % of bismuth oxide in terms of BiO, 0.5 to 3.0 wt % of tin oxide in terms of SnO, and 30 to 5000 wt ppm of chromium oxide in terms of CrOare added to a predetermined main component mixture composition. Therefore, it is possible to achieve an improvement in DC bias characteristics, an improvement in temperature characteristics of initial magnetic permeability, and an improvement in resistivity and further achieve an improvement in burned body strength, particularly in burned body flexural strength (bending strength).