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:
Feb. 14, 1978
Filed:
Dec. 09, 1976
Applicant:
Inventor:
Gerhard Trippel, Sindelfingen, DT;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428626 ; 428632 ; 428633 ; 428660 ; 428666 ; 428926 ; 428928 ;
Abstract
A record carrier for a magnetic thin film metal layer includes a substrate coated with a pigmented epoxy resin as a synthetic substance layer. The pigment includes approximately 20% titanium dioxide and approximately 2% aluminum oxide. A thin getter metal layer is deposited over the synthetic substance layer for absorbing the outgasing from the synthetic substance layer. A relatively thicker metal layer such as chromium is then deposited over the getter layer for enhancing the magnetic properties of the subsequently deposited magnetic layer.