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:
Jul. 26, 2005
Filed:
Apr. 29, 2004
Hiroyasu Inoue, Chuo-Ku, JP;
Hideki Ishizaki, Chuo-Ku, JP;
Hiroshi Takasaki, Chuo-Ku, JP;
Hideki Hirata, Chuo-Ku, JP;
Hiroyasu Inoue, Chuo-Ku, JP;
Hideki Ishizaki, Chuo-Ku, JP;
Hiroshi Takasaki, Chuo-Ku, JP;
Hideki Hirata, Chuo-Ku, JP;
TDK Corporation, Tokyo, JP;
Abstract
The optical recording medium of the invention comprises a recording layer and at least one mixed dielectric layer. The mixed dielectric layer contains cerium oxide and an additive compound. The additive compound is at least one compound selected from among aluminum oxide, chromium oxide, iron oxide, manganese oxide, niobium oxide, magnesium oxide, zinc oxide, titanium oxide, yttrium oxide, tantalum oxide, antimony oxide, zirconium oxide, bismuth oxide and magnesium fluoride. The optical recording medium has a high storage reliability and satisfactory recording/reading characteristics.