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:
Jun. 24, 2003
Filed:
Feb. 20, 1998
Derek D. Chapman, Rochester, NY (US);
Ann L. Carroll-Lee, Rochester, NY (US);
Csaba A. Kovacs, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
An optical recording element having a transparent substrate and on the surface of said substrate, a recording layer, a light reflecting layer is disclosed. The recording layer comprises (i) a metallized azo ether dye having an azo group linking a substituted 3-hydroxypyridine nucleus to a phenyl nucleus wherein the phenyl nucleus has an ether substituent ortho to the azo group and said phenyl nucleus is free of strong electron withdrawing groups and (ii) a cyanine dye. The recording layer also has, when unrecorded a refractive index, at a selected wavelength from 400 to 660 nm, comprising a real part (n) greater than 1.8 and an imaginary part (k) less than 0.2.