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:
Sep. 22, 1998
Filed:
Apr. 25, 1996
Makoto Nagasato, Yokohama, JP;
Takahiro Kokubo, Fujisawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An optical head drive device for driving an optical head in a tracking direction and a focusing direction, comprising a pair of first tracking leaf spring members provided such that the respective one end sides are fixed to a fixing member, and structured to be elastically deformable to the tracking direction on a basis of the fixing section as a base end, a pair of second tracking leaf spring members provided such that the respective one end sides are coupled to the optical head, having substantially the same spring effective length and spring constant as the first tracking leaf spring member, and structured to be elastically deformable to the tracking direction, and coupling members for coupling the respective other end sides of the first tracking leaf spring members and the second tracking leaf spring members.