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. 22, 1985
Filed:
Jan. 10, 1983
Friedrich Ertingshausen, Nieder-Olm, DE;
Volker Heinrich, Wiesbaden, DE;
Holger Hinkel, Boblingen, DE;
Gerhard Kaus, Motzingen, DE;
Jurgen Kempf, Schonaich, DE;
Hans-Georg Nauth, Mainz, DE;
Manfred Schrader, Boblingen, DE;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A magnetic head slider consisting of a mixed ceramic made of aluminum oxide/titanium carbide has on its sliding side adjacent a magnetic record carrier a thin layer from which the titanium carbide component has been removed. The titanium carbide component preferably is removed by preferential reactive ion etching in a CF.sub.4 plasma. The magnetic head slider with its sliding surface thus modified exhibits greatly improved sliding properties compared with sliders of the same material having a non-modified sliding surface.