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. 11, 2010
Filed:
Jun. 19, 2006
Junichi Nakai, Kobe, JP;
Yuki Tauchi, Kobe, JP;
Hideo Fujii, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Kobe-shi, JP;
Abstract
A silver alloy reflective film is used in an optical information recording medium and contains Ag as a main component, a total of 1 to 10 atomic percent of at least one selected from Nd, Gd, Y, Sm, La, and Ce, and a total of 2 to 10 atomic percent of at least one selected from Li, Mg, Al, Zn, Cu, Pt, Au, Pd, Ru, and Rh. The reflective film preferably further contains 0.01 to 3 atomic percent of at least one of Bi and Sb and/or 2 to 10 atomic percent of at least one selected from In, Sn, and Pb. An optical information recording medium includes the silver alloy reflective film. A silver alloy sputtering target has the same composition as the silver alloy reflective film.