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:
Jan. 04, 2000
Filed:
Aug. 27, 1998
Applicant:
Inventors:
Masayuki Tatewaki, Kanagawa, JP;
Hiromasa Kato, Kanagawa, JP;
Kenichi Obinata, Kanagawa, JP;
Masahiro Aoki, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 641 ; 428 644 ; 428457 ; 428913 ; 43027011 ; 4304951 ; 430945 ; 369283 ; 369288 ;
Abstract
An optical disc having an aluminum reflective film is disclosed, wherein an oxide of Al in the stable oxidized state is introduced into the Al reflective film to eliminate changes with lapse of time to improve durability of the optical disc. A method for producing a reflective film on an optical disc is also disclosed, wherein a trace amount of oxygen is introduced into atmosphere in the course of formation of the reflective film.
Quick Actions:
Tatewaki, Masayuki. (2000). Optical disc (U.S. Patent No. 6010761). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6010761
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile