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. 26, 1993
Filed:
Apr. 27, 1992
Applicant:
Inventors:
Tetsuya Akiyama, Osaka, JP;
Hidemi Isomura, Osaka, JP;
Takeo Ohta, Nara, JP;
Shigeaki Furukawa, Shiki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ;
U.S. Cl.
CPC ...
430273 ; 430270 ; 430271 ; 430272 ; 430495 ; 430945 ; 3461351 ; 369286 ;
Abstract
A phase change type information storage disk in which a reflective layer is formed of an alloy thin film comprising as a main component any one of Ni--Cr, Cr or Ti and a metal having a larger malleability than said main component, being easy to be initialized and strong to thermal shock.