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:
Aug. 03, 2010
Filed:
May. 30, 2006
Applicants:
Shinichi Kimura, Osaka, JP;
Hiroshi Ueda, Nara, JP;
Katsuya Watanabe, Nara, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-layer information storage mediumincludes: a data-reading surface; and eight recording layerstofor recording data which is read out by using a blue-violet light beam. Each of the recording layerstohas a user data area. A recording layer which is the most distant from the data-reading surfaceincludes a disk information areaand a defect management areafor recording management information concerning all of the recording layersto