Thin-film magnetic head, head gimbal assembly with thin-film magnetic head and magnetic disk apparatus with head gimbal assembly
AssigneeTDK Corporation
InventorAkifumi Kamijima
Life of this patent
Estimating the term…
Abstract
A thin-film magnetic head includes at least one thin-film magnetic head element with an ABS, and at least one heating means located at a position opposite to the ABS with respect to the at least one thin-film magnetic head element. The at least one heating means is energized to heat at least when the at least one thin-film magnetic head element operates.
Claims35
A thin-film magnetic head comprising:
- at least one thin-film magnetic head element with an end surface at a same side as an air bearing surface;
- and
- at least one heating means located at a rear of said at least one thin-film magnetic head element, with respect to the air bearing surface, said at least one heating means being energized to heat at least when said at least one thin-film magnetic head element operates,
- said end surface of said at least one thin-film magnetic head element protruding when said at least one heating means is energized.
A head gimbal assembly including a thin-film magnetic head with at least one thin-film magnetic head element and at least one heating means, a support means for supporting said thin-film magnetic head, signal lead lines connected to said at least one thin-film magnetic head element, and power lead lines for supplying current to said at least one heating means,
- said at least one heating means being located at a rear of said at least one thin-film magnetic with respect to the air bearing surface, and energized to heat at least when said at least one thin-film magnetic head element operates,
- said at least one thin-film magnetic head element having an end surface at a same side as the air bearing surface, said end surface protruding when said at least one heating means is energized.
A magnetic disk apparatus including at least one head gimbal assembly and a current control means,
- said at least one head gimbal assembly including a thin-film magnetic head with at least one thin-film magnetic head element and at least one heating means, a support means for supporting said thin-film magnetic head, signal lead lines connected to said at least one thin-film magnetic head element, and power lead lines for supplying current to said at least one heating means,
- said at least one heating means being located at a rear of said at least one thin-film magnetic head element with respect to the air bearing surface, and energized to heat at least when said at least one thin-film magnetic head element operates,
- said at least one thin-film magnetic head element having an end surface at a same side as the air bearing surface, said end surface protruding when said at least one heating means is energized,
- said current control means controlling current supplied to said at least one heating means.
Dependencies are inferred from the claim text.