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:
Mar. 18, 1997
Filed:
Apr. 05, 1996
Applicant:
Inventors:
Rie Mori, Saitama, JP;
Kenichi Hijikata, Saitama, JP;
Assignee:
Mitsubishi Materials Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428336 ; 428457 ; 428471 ; 4286 / ; 428900 ;
Abstract
Silver is alloyed with magnesium, and the magnesium content of the silver-magnesium alloy ranges from 1 atom % to 10 atom % so that a protection film of magnesium oxide prevents the silver-magnesium alloy from sulfur and ozone without an intermetallic compound.