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:
May. 14, 2013
Filed:
Sep. 27, 2010
Applicants:
Haruhiko Habuta, Osaka, JP;
Noboru Yamada, Osaka, JP;
Shinya Abe, Osaka, JP;
Katsuyuki Takahashi, Osaka, JP;
Inventors:
Haruhiko Habuta, Osaka, JP;
Noboru Yamada, Osaka, JP;
Shinya Abe, Osaka, JP;
Katsuyuki Takahashi, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
The information recording mediumcomprises an information layer having a metal layeron a substrate, wherein concavo-convex portion is formed in the substrate to give main information such as image and voice, and the metal layer contains Al, Si and M (wherein M is at least one element selected from a group consisting of Cr and Ni) and enables sub-information to be additionally recorded therein at low cost by laser-beamirradiation.