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. 30, 2002
Filed:
Apr. 14, 2000
Applicant:
Inventors:
Yoshihito Yoshizawa, Fukaya, JP;
Yoshio Bizen, Yasugi, JP;
Shunsuke Arakawa, Kumagaya, JP;
Michihiro Nagao, Yasugi, JP;
Takashi Meguro, Yonago, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/16 ; H01F 1/14 ;
U.S. Cl.
CPC ...
H01F 1/16 ; H01F 1/14 ;
Abstract
A soft magnetic alloy strip is manufactured by a single roll method. The soft magnetic alloy strip is 0.2×d mm or less (, which “d” is a width of the strip,) in warpage in the widthwise direction of the strip, and has a continuous, long length not less than 50 m, in which a width of an air pockets occurring on a roll contact face is not more than 35 &mgr;m, a length of the air pockets is not more than 150 &mgr;m, and the centerline average roughness Ra of the roll contact face is not more than 0.5 &mgr;m.