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. 09, 2000
Filed:
May. 15, 1996
Yoshiyasu Honma, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A magnetic head includes a pair of magnetic cores each having a convexly processed part, the convexly processed parts being disposed opposite to each other with a magnetic gap member inserted therebetween, and a pair of glass blocks disposed on both sides of the pair of magnetic cores, thereby coupling together the pair of magnetic cores. In the magnetic head, a metal magnetic film is formed on a projection end face of the convexly processed part in each of the pair of magnetic cores. A pair of notches regulating a track width are formed on a magnetic tape sliding face of the pair of magnetic cores by electric discharge machining so as to flank a butted part of the convexly processed parts of the pair of magnetic cores from both sides. Each of the notches has a shape such that an interface thereof is not positioned out of an edge of a recording pattern on a magnetic tape when the magnetic tape travels.