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:
Feb. 13, 2001
Filed:
Jul. 10, 1998
Koji Furusawa, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An optical disk device applicable to a plurality of optical disks differently normalized from each other, including rotation driving unit which support the optical disk and which drive rotation of the optical disk; a plurality of optical heads which are applicable to the a plurality of differently normalized optical disks, respectively; single guiding member for guiding each of the a plurality of optical heads in a radial direction of the optical disk supported by the rotation driving unit; pushing member for pushing the each of the a plurality of optical heads along the single guiding member; container unit for containing all of the a plurality of optical heads; and optical head moving member for moving one of the a plurality of optical heads from the container unit toward the single guiding member or from the single guiding member toward the container unit.