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:
Apr. 01, 1997
Filed:
Aug. 25, 1994
Applicant:
Inventor:
Tomohiko Ohsaka, Yamagata, JP;
Assignee:
Mitsumi Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360128 ; 360122 ; 360129 ;
Abstract
A magnetic head for floppy discs has a shielding member surrounding a core and coil of the head so as to prevent the head from being adversely affected by an external magnetic field. The shielding member is a stack of sheets and each sheet is made of magnetic metal such as permalloy and is fixed on a gimbal plate together with the magnetic head. Insulator layers made of thermoplastic resin may be provided between sheets of the stack of sheets to adhere the metal sheets to one another and to electrically insulate the metal sheets from one another.