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. 24, 2001
Filed:
Nov. 07, 1997
Read-Rite Corporation, Milpitas, CA (US);
Abstract
An inductive/MR composite type thin-film magnetic head. In one embodiment, the inductive/MR composite type thin-film magnetic head is equipped with an inductive head used for writing. The inductive head includes an insulating film and a conductive coil that are laminated between upper and lower magnetic films. The inductive/MR composite type thin-film magnetic head also includes a magnetic resistance (MR) head used for read-out. The inductive/MR composite type thin-film magnetic head is characterized by the fact that a distance L between [i] the upper and lower magnetic poles, which face each other across a magnetic gap at the tip ends of the aforementioned upper and lower magnetic films and [ii] the point where the aforementioned upper and lower magnetic films are joined together has the relationship of L<8400/X, with respect to the desired data transmission rate X (Mbit/sec) of the aforementioned thin-film magnetic head. In one embodiment, L is less than or equal to 60 microns.