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:
Oct. 15, 1985
Filed:
Dec. 23, 1983
Applicant:
Inventors:
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430 11 ; 430 17 ; 430 18 ; 430945 ; 430270 ; 430495 ; 430496 ; 3461351 ;
Abstract
An optical recording element in which information can be recorded and read directly afterwards by means of laser light, comprises a substrate having on at least one side a recording layer including an effective amount of one or more compounds selected from a certain class of trimethine and longer chain aryl polymethine dyes associated with specific counter-ions.