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:
Aug. 11, 1992
Filed:
Jun. 06, 1990
Applicant:
Inventors:
Masami Okamura, Yokohama, JP;
Takao Sawa, Yokohama, JP;
Takao Kusaka, Yokohama, JP;
Yoshiyuki Yamauchi, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335297 ; 336213 ; 336219 ;
Abstract
A magnetic core comprises at least one layer of magnetic film composed of an amorphous alloy and an electrically insulating film made of polyimide. Powder materials having a property for alleviating mutual influence between the magnetic thin film and the insulating film during a heat treatment thereof are stuck to a surface of the magnetic film or the insulating film. The magnetic film and the electrically insulating film are alternately wound up in a predetermined shape with powder material interposed therebetween to thereby form a magnetic core.