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:
Jan. 18, 2000
Filed:
Feb. 12, 1999
Read-Rite Corporation, Milpitas, CA (US);
Abstract
A read/write head for use in data storage drives includes a thermally assisted inductive write section and a magnetic read section to write data onto, and retrieve data from a storage medium. The write section includes a waveguide formed of a core and a surrounding cladding, and positioned between a first write pole and a second write pole, to conduct a laser beam for heating the medium. The second write pole and the optical waveguide core are offset relative to each other at the pole tip, such that they define an overlap region that determines a written track width. The offsetting facilitates manufacturing process since the optical waveguide core and the second write pole can be made wide enough while still defining tracks with a limited width.