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:
Sep. 18, 2007
Filed:
Sep. 10, 2002
Applicants:
Kunihiro Ueda, Tokyo, JP;
Kentaro Nagai, Tokyo, JP;
Hiroki Nakazawa, Tokyo, JP;
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
As a protective film of an element and a slider in a magnetic head, a film is provided which is excellent in adhesiveness to a film forming surface and which shows sufficient corrosion-resistance property with a thinner thickness. To provided this film, according to the present invention, a DLC film as a protective film is formed onto an element portion end surface and a surface of a slider of a magnetic head core. A film deposition step is conducted plural times to obtain the DLC film with a predetermined thickness when the DLC film is formed using an electric discharge.