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:
Oct. 02, 2001
Filed:
Oct. 18, 1999
Keiichiro Yusu, Yokohama, JP;
Sumio Ashida, Tokyo-To, JP;
Akira Kikitsu, Yokohama, JP;
Toshihiko Nagase, Tokyo-To, JP;
Katsutaro Ichihara, Yokohama, JP;
Naomasa Nakamura, Yokohama, JP;
Naoki Morishita, Yokohama, JP;
Katsumi Suzuki, Chofu, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
In a phase change optical recording medium, by determining heat conductivity relatively higher in one of interference layers on and under the recording layer, heat absorbed into the recording layer can be released moderately through an interference layer. Thereby, cross erasure caused by heating of adjacent tracks can be prevented, and at the same time, excessive heat radiation is prevented from a part of the recording layer nearer to the substrate to thereby maintain appropriate heat in the recording layer. As a result, cross-erasure is prevented, and data can be rewritten with the supply of typical recording/erasure power.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile