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. 30, 1991
Filed:
Sep. 01, 1989
Applicant:
Inventor:
Masaru Nishimura, Hyogo, JP;
Assignee:
Mitsubishi Denki K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360119 ; 360126 ;
Abstract
A magnetic head without an erase head, which includes a substantially U-shaped magnetic core with opposed end faces of a pair of legs forming a gap; and a magnetic material attached to one of the end faces to form a write read head with the other end face to write and read data from a recording medium. The magnetic material has a saturated flux density lower than that of the magnetic core. A read track width made by the magnetic material and the other end face is smaller than a write track width made by the opposed end faces.