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. 08, 2019
Filed:
Jul. 21, 2017
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Akio Tsuchino, Okayama, JP;
Rie Kojima, Okayama, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2013.01); G11B 7/2437 (2013.01); G11B 7/24038 (2013.01); G11B 7/241 (2006.01); G11B 7/243 (2013.01); G11B 7/26 (2006.01); G11B 7/257 (2013.01);
U.S. Cl.
CPC ...
G11B 7/2437 (2013.01); G11B 7/241 (2013.01); G11B 7/243 (2013.01); G11B 7/24038 (2013.01); G11B 7/257 (2013.01); G11B 7/26 (2013.01); G11B 7/266 (2013.01); G11B 2007/2432 (2013.01); G11B 2007/24304 (2013.01); G11B 2007/24306 (2013.01); G11B 2007/2571 (2013.01); G11B 2007/25715 (2013.01);
Abstract
An information recording medium according to the present disclosure is an information recording medium of a write-once-read-many type and records or reproduces information when irradiated with laser light. The information recording medium includes: a substrate; a plurality of information layers at least one information layer of which includes a recording film that is a W—O-based recording film comprising at least tungsten (W) and oxygen (O); and a dielectric film A in contact with the W—O-based recording film, the dielectric film A comprising at least 30 mol % tin oxide.