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:
Aug. 08, 2006
Filed:
Jul. 15, 2003
Krishnamoorthy Sivakumar, Bangalore, IN;
Philippe Schottland, Evansville, IN (US);
Binod Behari Sahoo, Orissa, IN;
Ganapati Subray Shankarling, Bangalore, IN;
Meerakani Mohamed Ali Sait, Tamil Nadu, IN;
Adil Minoo Dhalla, Maharashtra, IN;
Krishnamoorthy Sivakumar, Bangalore, IN;
Philippe Schottland, Evansville, IN (US);
Binod Behari Sahoo, Orissa, IN;
Ganapati Subray Shankarling, Bangalore, IN;
Meerakani Mohamed Ali Sait, Tamil Nadu, IN;
Adil Minoo Dhalla, Maharashtra, IN;
General Electric Company, Schenectady, NY (US);
Abstract
In one embodiment, a limited play optical storage medium for data comprises: a reflective layer, a control portion comprising an optically transparent polymeric resin and a light absorbing material, wherein the control portion has a light transmission of greater than or equal to about 70% at 650 nm, a curing index of greater than or equal to about 0.1 and a filtration index of greater than or equal to about 2.5, and wherein the light absorbing material has a minimum extinction coefficient (measured in CHClsolution) at 600 nm of greater than or equal to 1,500 mol·cm·L, a maximum extinction coefficient (measured in CHClsolution) at 650 nm of less than about 1,000 mol·cm·L, a ratio of extinction coefficient at 650 nm to 600 nm less than about 0.1, and a reactive layer disposed between the reflective layer and the control portion, wherein the reactive layer is designed to limit the time during which data on the medium (disposed on a side of the reactive layer opposite the control portion), can be accessed after exposure to oxygen.