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. 18, 2006
Filed:
Oct. 03, 2002
Wen-dar Liu, Ilan, TW;
Nae-jen Wang, Kaohsiung, TW;
Wan-chun Chen, Keelung, TW;
Biing-hwang Lin, Miaoli, TW;
Hui-jen Chen, Yungkang, TW;
Hsin-te Kuo, Taipei, TW;
Wen-Dar Liu, Ilan, TW;
Nae-Jen Wang, Kaohsiung, TW;
Wan-Chun Chen, Keelung, TW;
Biing-Hwang Lin, Miaoli, TW;
Hui-Jen Chen, Yungkang, TW;
Hsin-Te Kuo, Taipei, TW;
Ritek Corporation, Hsinchu, TW;
Abstract
A method for fabricating an optical recording medium is provided. A dye layer is formed on a molded substrate by spin-coating. A reflection layer is formed on the dye layer by sputtering so that the optical disc has enough reflection rate. The dye layer comprises a cyanine type dye and an azo metal chelate compound selected from the formula (I): wherein M is a metal ion; Ris a hydrogen atom, a linear or branched alkyl group containing 1 to 6 carbon atoms, amino group, alkyl amino group or toluidinyl group; Ris a hydrogen atom, a hydroxyl group, a halogen atom, an ether group, an ester group or a linear or branched alkyl group containing 1 to 6 carbon atoms; R3 is a hydrogen atom or a linear or branched alkyl group containing 1 to 6 carbon atoms; R4 is a hydrogen atom, a halogen atom or a linear or branched alkyl group containing 1 to 6 carbon atoms; A1 is a heterocyclic derivative group constituted by carbon atoms and nitrogen atoms.