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:
Sep. 28, 1999
Filed:
Feb. 08, 1999
Applicant:
Inventors:
Wen-Yih Liao, Taichung, TW;
Chien-Liang Huang, Taoyuan, TW;
Der-Ray Huang, Hsinchu, TW;
Don-Yau Chiang, Hsinchu Hsien, TW;
Andrew Teh Hu, Hsinchu, TW;
Hong-Ji Lee, Taoyuan Hsien, TW;
Shi-Jae Ye, Kaohsiung Hsien, TW;
Ying-Jen Kao, Taipei, TW;
Assignees:
Industrial Technology Research Institute, Taipei, TW;
National Tsing Hua University, Taipei, TW;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ;
U.S. Cl.
CPC ...
8644 ; 8638 ; 8527 ; 548455 ;
Abstract
A cyanine dye for using in high density 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 an integer of 1 or 2. This cyanine dye is suitable for use as a .lambda.=450 nm.about.650 nm visible light-absorbing organic dye useful as a high density optical disc recording medium.