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:
Jan. 28, 1992
Filed:
Mar. 21, 1990
Applicant:
Inventors:
Vivien L Bell, Brentwood, GB;
Alan G Hulme-Lowe, Bishop's Stortford, GB;
Simone Franco, Ferrania, IT;
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430270 ; 430495 ; 430945 ;
Abstract
An optical recording element in which information can be recorded and read directly afterwards by means of laser light, the element comprising, as a recording medium, a dye, which is not capable of being isomerized due to light, dissolved or dispersed in a binder, the binder comprising a thermally cured organic material composed of non-metallic elements only, and having a cross-linked three-dimensional network structure. The thermally cured binder provides improved stability to repeated read.