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:
Jan. 31, 2006
Filed:
Aug. 08, 2002
Applicants:
Kiyoshi Ito, Iwata-gun, JP;
Osamu Kobayashi, Iwata-gun, JP;
Yukio Suzuki, Iwata-gun, JP;
Inventors:
Assignee:
Minebea Co., Ltd., Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/26 (2006.01); B22F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A Mn—Zn ferrite and a coil component are provided which obtains a low core loss in a frequency band above 1 MHz and even above 5 MHz and which can duly function in such a high frequency band. The Mn—Zn contains as basic components 44.00 to 50.0 mol % Fe2O3 (50 mol % excluded), 4.0 to 26.5 mol % ZnO, and remainder MnO, and has a dielectric loss tan δ of 0.3 or less at 1 kHz, and a complex relative permittivity ε of 1,000 or less at 1 MHz, whereby a core loss decreases in the high frequency band.