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:
Apr. 20, 1999
Filed:
Nov. 06, 1997
Applicant:
Inventors:
Makoto Watanabe, Tokyo, JP;
Takashi Nawata, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360103 ; 360104 ;
Abstract
A slider is attached to a spring with an epoxy adhesive. The thermal expansion coefficient of the spring is set greater than that of the slider by 10% to 60%. In this range, the deformation of the slider is reduced more effectively than when the thermal expansion coefficients of the slider and the spring are set substantially identical. The slider has a crown. The crown is formed by attaching a face of the slider to a concave surface, forming flat another face of the slider opposing the attached face, and disengaging the slider from the concave surface.