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. 04, 1999
Filed:
Jul. 23, 1997
Applicant:
Inventors:
Andrew Teh Hu, Hsinchu, TW;
Hong-Ji Lee, Taoyuan Hsien, TW;
Jian-Liang Huang, Taoyuan, TW;
Jen-Cheng Chang, Taoyuan, TW;
Shi-Jae Ye, Kaohsiung Hsien, TW;
Der-Ray Huang, Hsinchu, TW;
Don-Yau Chiang, Hsien, TW;
Wen-Yih Liao, Taichung, TW;
Tzuan-Ren Jeng, Tou-Lu, TW;
Jin-Sen Chen, Hsinchu, TW;
Assignees:
National Tsing Hua University, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G03C / ; G02B / ;
U.S. Cl.
CPC ...
43027021 ; 430945 ; 252586 ; 252587 ;
Abstract
A cyanine dye for using in optical disc recording medium, having the following structure: ##STR1## wherein R represents 4-methoxycarbonyl benzyl group, X.sup.- represents an acid anion, and n represents am integer of 2 or 3. This cyanine dye is suitable for use as a near infrared light-absorbing organic dye useful as an optical disc recording medium.