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:
Aug. 08, 1995
Filed:
May. 24, 1994
Applicant:
Inventors:
Yotaro Sanada, Tokyo, JP;
Noriaki Ishimatsu, Tokyo, JP;
Makoto Watanabe, Tokyo, JP;
Seiji Yamashita, Ibaragi, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360104 ; 360 9702 ; 360106 ; 360109 ;
Abstract
A magnetic head for use in a magnetic disk drive. An arm included in the head is partly constituted by a member which is different in the coefficient of thermal expansion from the other portion of the arm. This is successful in readily correcting a tracking error ascribable to the thermal expansion of the arm despite the varying ambient temperature.