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:
Apr. 24, 2012
Filed:
Mar. 01, 2010
Yoshinobu Usui, Kanagawa, JP;
Akiya Saito, Kanagawa, JP;
Makoto Tsukahara, Shizuoka, JP;
Yoshitake Yanagisawa, Shizuoka, JP;
Yoshinobu Usui, Kanagawa, JP;
Akiya Saito, Kanagawa, JP;
Makoto Tsukahara, Shizuoka, JP;
Yoshitake Yanagisawa, Shizuoka, JP;
Sony Disc & Digital Solutions Inc., Tokyo, JP;
Abstract
An optical disc medium and corresponding optical recording method and optical recording apparatus. The optical disc medium comprises a substrate on which a shape according to modulated information data has been formed, and a coating film formed on the substrate. Known data is recorded in a predetermined location of the information data, with the known data being rewritten as postscript information by recording a postscript portion to the coating film to alter a portion of the known data, wherein the postscript information comprises readable non-error data.