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. 01, 1989
Filed:
Mar. 22, 1988
Applicant:
Inventors:
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427240 ; 427273 ; 427277 ; 427336 ; 156314 ; 156654 ; 156655 ; 428 64 ;
Abstract
An optical disk includes two disk substrates bound together with a spacer in between and at least one of the substrates has a recording layer facing the inside. Before using the adhesive, the portion of the recording layer in the bonding area is removed so that the adhesive is applied directly between the spacer and a transfer layer which has been formed on top of each substrate. The bonding inside the disk is much stronger and peeling of the disk is prevented.