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:
Sep. 07, 1993
Filed:
Feb. 14, 1991
Applicant:
Inventors:
Toru Yashiro, Yokosuka, JP;
Yutaka Ueda, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 64 ; 428 65 ; 428913 ; 369288 ; 346 / ; 3461351 ;
Abstract
An optical recording medium is composed of a substrate, and a recording layer formed thereon, which is made of (a) a first recording layer which contains a light-absorbing organic compound and can be deformed upon irradiation of light thereto, and (b) a second recording layer which includes a sulfide containing antimony in an amount of 50 atm % or more, and can be deformed in accordance with the deformation of the first recording layer.