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:
Jul. 23, 1991
Filed:
Jun. 05, 1990
Takahiko Tandai, Aomori, JP;
Masahisa Tazawa, Aomori, JP;
Nakamichi Corporation, Tokyo, JP;
Nakamichi Fukushima Corporation, Fukushima, JP;
Abstract
A pair of half core blocks, one of which is provided with a groove for providing a prescribed gap depth in a magnetic head, are bonded together to produce a ring core. The ring core is inserted into a slot formed in a top of a magnetic slider and secured in position which provides a precise flush relation between a base end of a half core provided with a groove and the top of the slider. The slider is ground from its bottom to expose the end of the ring core inserted into the slot to produce a head assembly. One side of the ring core portrudes from the slider in the head assembly. When one or more of the head assemblies are mounted on a base block, the protruding side is maintained in contact with a reference upstanding plane provided by a jig for definite positioning of the head assemblies so that gaps in the respective ring cores extends exactly in a running direction of a magnetic tape, thereby preventing azimuth loss.