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. 12, 1998
Filed:
Jun. 28, 1996
Applicant:
Inventors:
Tukaram K Hatwar, Penfield, NY (US);
Yuan-Sheng Tyan, Webster, NY (US);
Charles F Brucker, Fairport, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ;
U.S. Cl.
CPC ...
4286 / ; 4286 / ; 428668 ; 428670 ; 428900 ;
Abstract
A magnetooptic medium comprising a substrate, an amorphous seed layer and a recording multilayer deposited onto the seed layer wherein the seed layer has a thickness of greater than 18 nm but less than 200 nm and is selected to improve the coercivity, squareness, and Kerr rotation of the Kerr hysteresis loop of the recording multilayer, and the recording multilayer includes alternating layers of cobalt and platinum or cobalt and palladium or cobalt and platinum-palladium alloy.