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:
May. 30, 1995
Filed:
Jan. 11, 1993
Applicant:
Inventors:
James H Coombs, Eindhoven, NL;
Antonius H Holtslag, Croton on Hudson, NY (US);
Wilma Van Es Spiekman, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 64 ; 428 65 ; 428457 ; 428913 ; 3461351 ; 347264 ;
Abstract
An optical record carrier with a substrate (1) having thereon a stack (3) of a reflection layer (4), an interference layer (5) and a phase-change recording-layer (6) in that order, the incident radiation being first incident on the reflection layer. Due to this structure of the stack a high contrast between the inscribed and uninscribed areas of the recording layer, and/or a high reflection, is obtained.