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:
May. 05, 1998
Filed:
Oct. 22, 1996
Applicant:
Inventors:
Kazunari Taki, Nagoya, JP;
Riki Matsuda, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Aichi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360135 ;
Abstract
A magnetic recording disk, for recording information, has a circular-shaped non-magnetic support formed with a plurality of tracks extending in a circumferential direction, each track of the plurality of tracks having a band-shaped contour having an upper flat surface and having a width in a radial direction, the plurality of tracks being juxtaposed in the radial direction so that adjacent tracks are separated by an inter-track gap. A magnetic layer is provided on the non-magnetic support. A protective layer is provided on the magnetic layer.