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:
Oct. 18, 2011
Filed:
Sep. 02, 2009
Akio Tsuchino, Osaka, JP;
Kenichi Nishiuchi, Osaka, JP;
Noboru Yamada, Osaka, JP;
Rie Kojima, Osaka, JP;
Akio Tsuchino, Osaka, JP;
Kenichi Nishiuchi, Osaka, JP;
Noboru Yamada, Osaka, JP;
Rie Kojima, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
According to the present invention, a recording film is partially initialized using a first light beam (A) having a wavelength for initialization, focus adjustment is performed using a second light beam (B) having a wavelength corresponding to a wavelength for recording and reproducing information on and from an information recording medium, and then the recording film is initialized using the first light beam (A), thereby it is possible to securely initialize recording films of all information layers of a multilayer information recording medium.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile