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:
Oct. 15, 1991
Filed:
Sep. 15, 1989
Yoichi Muratomi, Hyogo, JP;
Hirofumi Oouchi, Fukushima, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A magnetic head including a head core having at least one gap and a pair of non-magnetic reinforcing members bonded so as to clamp the head core therebetween. An elongate notch or bore is formed in at least one of the non-magnetic reinforcing members, the notch or bore extending from the gap to the end of the non-magnetic reinforcing member in the direction in which the gap extends, so that the depth of the gap can be directly and optically observed through the notch or bore. It is therefore possible to measure the gap depth easily and accurately in the magnetic head manufacturing process and hence possible to obtain a magnetic head with high accuracy.