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. 22, 2003
Filed:
Apr. 25, 2002
Toru Yokohata, Kawasaki, JP;
Takayuki Yamamoto, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A magnetic disk drive includes a magnetic recording medium rotatably mounted in a housing, a magnetic head slider having an electromagnetic transducer for reading/writing data from/to the magnetic recording medium, and an actuator for moving the magnetic head slider across tracks of the magnetic recording medium. The magnetic head slider has a medium opposing surface opposed to the magnetic recording medium, and is formed with an air bearing surface and a plurality of projections. The magnetic recording medium has a nondirectional texture which includes a surface roughness composed of numerous microscopic projections having an average top radius of 0.3 &mgr;m to 0.75 &mgr;m.