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. 11, 2011
Filed:
Dec. 15, 2008
Applicants:
Seiji Yari, Tokyo, JP;
Yasufumi Uno, Tokyo, JP;
Yuji Ito, Tokyo, JP;
Hideaki Sato, Tokyo, JP;
Nozomu Hachisuka, Tokyo, JP;
Inventors:
Seiji Yari, Tokyo, JP;
Yasufumi Uno, Tokyo, JP;
Yuji Ito, Tokyo, JP;
Hideaki Sato, Tokyo, JP;
Nozomu Hachisuka, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/29 (2006.01); G11B 5/027 (2006.01); G11B 5/127 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-channel thin-film magnetic head includes a substrate, a plurality of thin-film magnetic head elements formed on the substrate, a closure fixed onto the plurality of thin-film magnetic head elements, a protection film laminated on a whole area of a TBS of the plurality of thin-film magnetic head elements and the closure, and many micro-grooves formed in a surface of the protection film.