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. 21, 1992
Filed:
May. 07, 1991
Tugrul Yasar, Woodstock, NY (US);
Robert T Sturrock, St. Remy, NY (US);
Harry P Harnischfeger, Stone Ridge, NY (US);
National Micronetics, Inc., Kingston, NY (US);
Abstract
The present process is for the manufacture of a monolithic read/write recording head for use in disk drives. The airborne slider body and the transducer nose portion of the head is made from the same magnetic ferrite material. The magnetic material preferably consists of NiZn ferrite or MnZn ferrite. A narrow track ridge has a non-magnetic gap interposed across the track at some distance atop the I-bar coil assembly, between the slider and the transducer portion. The instant process provides a self-aligned track ridge across the gap by virtue of machining the ridge in one bonded piece. For protection, this narrow gap and track ridge portion is glass encapsulated. Another embodiment of the instant process provides for a slider body equipped with both a servotype and data recording transducer assembly. The process provides attachment on a spring-loaded head holder in such a position that the spring axis is in parallel with the long dimension of the body along its air bearing surface. Alternatively, the head can have mounting blocks arranged such that the spring axis is directed perpendicularly to the long dimension of the body.