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:
Sep. 10, 2013
Filed:
Apr. 14, 2010
Applicants:
Yoko Shida, Kobe, JP;
Yuuki Tauchi, Kobe, JP;
Inventors:
Yoko Shida, Kobe, JP;
Yuuki Tauchi, Kobe, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a read-only optical information recording medium which comprises a reflective film having a reflectance suitable for use as a reflective film for an optical information recording medium (e.g., BD-ROM) and having excellent reproduction stability, and which utilizes a blue laser beam. Specifically disclosed is a read-only optical information recording medium comprising a reflective film, wherein the reflective film comprises an Al-based alloy containing at least one element selected from Si and Ge in an amount of 5 to 40 at. %.