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:
Nov. 11, 1986
Filed:
Nov. 21, 1984
Masanori Isshiki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The thin film magnetic head in accordance with the present invention for recording information on magnetic recording medium with two channels comprises a head-forming base, a pair of head sections formed on the base with a predetermined separation, a depth detection mark formed at the center of the separation between the head sections for detecting the length of the gap depth of the head sections, and a holding plated arranged opposite to the head-forming base to hold, the head sections and the depth detection mark therebetween. The depth detection mark is so arranged as to form an isosceles triangle, with its base extending along the head-forming base situated on the side facing to the recording medium, and its vertex located, facing to the base of the isosceles triangle, on the depth end line of the gaps of the head sections, on the side which is not facing the recording medium, as well as on the center line between the head sections.