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. 21, 2002
Filed:
Oct. 05, 2000
Applicant:
Inventor:
Masahiko Watanabe, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/34 ; C01F 4/900 ;
U.S. Cl.
CPC ...
H01F 1/34 ; C01F 4/900 ;
Abstract
In NiMnZn based ferrite, main components range within the scopes of Fe O =53 to 59 mol %, MnO=22 to 41 mol %, ZnO=4 to 12 mol %, and NiO=2 to 7 mol %, and sub-components of said NiMnZn based ferrite range within the scopes of SiO : 0.005 to 0.03 wt %, CaO: 0.008 to 0.17 wt % and P: 0.0004 to 0.01 wt %.