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. 02, 2006
Filed:
Aug. 10, 2000
Mayumi Otoba, Osaka, JP;
Noboru Yamada, Osaka, JP;
Katsumi Kawahara, Osaka, JP;
Hiroyuki Ohta, Osaka, JP;
Eiji Ohno, Osaka, JP;
Ken'ichi Nagata, Hyogo, JP;
Mayumi Otoba, Osaka, JP;
Noboru Yamada, Osaka, JP;
Katsumi Kawahara, Osaka, JP;
Hiroyuki Ohta, Osaka, JP;
Eiji Ohno, Osaka, JP;
Ken'ichi Nagata, Hyogo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention provides an optical information medium having excellent weather resistance and repeating characteristics. The optical information medium has a barrier layer between a protective layer and a recording layer. The barrier layer includes GeN or GeON, and at least one element selected from the group consisting of Al, B, Ba, Bi, C, Ca, Ce, Cr, Dy, Eu, Ga, H, In, K, La, Mn, N, Nb, Ni, Pb, Pd, S, Si, Sb, Sn, Ta, Te, Ti, V, W, Yb, Zn and Zr.