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:
Jan. 30, 1996
Filed:
Jun. 06, 1995
Applicant:
Inventors:
Takehisa Ishida, Tokyo, JP;
Hiroshi Takino, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 7703 ; 360 51 ; 360 7711 ; 360135 ;
Abstract
A recording and reproducing device having electro-conductive layers corresponding to track patterns arranged on a recording medium. A slider member of a head is provided with at least a pair of electrodes for use in detecting an electrostatic capacitance. Tracking of the head is controlled by the electrodes.