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:
Sep. 11, 2001
Filed:
May. 14, 1999
Keiji Moroishi, Tokyo, JP;
Junichi Horikawa, Tokyo, JP;
Masato Kobayashi, Tokyo, JP;
Osamu Nozawa, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A magnetic recording medium comprises a non-magnetic substrate having a principal surface, an intermediate layer formed on the principal surface, and a magnetic layer formed on the intermediate layer. The intermediate layer comprises an intermediate material composed of chromium and molybdenum. The magnetic layer comprises a magnetic material composed of cobalt and platinum. The intermediate layer may comprise first and second layers. The first layer comprises a first material composed of chromium and is formed on the principal surface. The second layer comprises a second material composed of chromium and molybdenum and is formed on the first layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile