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:
Dec. 13, 2011
Filed:
Apr. 18, 2008
Kozo Ezawa, Osaka, JP;
Masahiro Inata, Hyogo, JP;
Teruyuki Takizawa, Osaka, JP;
Hironori Tomita, Nara, JP;
Kozo Ezawa, Osaka, JP;
Masahiro Inata, Hyogo, JP;
Teruyuki Takizawa, Osaka, JP;
Hironori Tomita, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical disc apparatus according to the present invention includes a disc rotation mechanismfor allowing an optical dischaving an information recording face to be placed thereon and rotating the optical disc; an optical pickupincluding an engaging section and irradiating the information recording face with a light beam to perform at least one of information recording and information reproduction; a base main bodyfor rotatably supporting the optical pickup and having the disc rotation mechanism; a driving source, supported by the base main body, for generating a force for rotating the optical pickup; and a driving force transmission mechanismsupported by the base main body, including a worm, and engaged with the engaging section to transmit a driving force of the driving source to the optical pickup, thereby rotating the optical pickup. A distance between the engaging section and a rotating axis of the optical pickup is longer than a distance between the center of gravity of the optical pickup and the rotating axis of the optical pickup.