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. 04, 1998
Filed:
Jul. 18, 1996
Applicant:
Inventors:
Hirokazu Itoh, Suwa, JP;
Tomohiro Makigaki, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369244 ; 369 4416 ;
Abstract
The present invention is applied to a device for driving optical component parts, such as an objective lens, in accordance with displacement of a disk. A mobile body, on which the optical component parts are mounted, is supported by at least two plate springs that are not parallel with the disk, in such a manner that the mobile body can be driven in a focusing direction and a tracking direction. The plate springs can have an electric wiring function so that no wires extend from the mobile body.