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. 04, 1990
Filed:
Jun. 14, 1989
Applicant:
Inventors:
Tetsuya Nishida, Koganei, JP;
Motoyasu Terao, Tokyo, JP;
Yasushi Miyauchi, Sakai, JP;
Shinkichi Horigome, Tachikawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 64 ; 428 65 ; 428209 ; 428457 ; 428913 ; 346 / ; 3461351 ; 369288 ; 430945 ;
Abstract
An information recording thin film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula;