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. 20, 2007
Filed:
Oct. 14, 2004
Takeshi Kadowaki, Tokorozawa, JP;
Katsuyuki Kobayashi, Tokorozawa, JP;
Youichi Konno, Tokorozawa, JP;
Takeshi Kadowaki, Tokorozawa, JP;
Katsuyuki Kobayashi, Tokorozawa, JP;
Youichi Konno, Tokorozawa, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A recess () is provided to be continuous with the circumferential edge of a tray recess () of a disk tray () housing an optical disc () to allow a pickup () to move without contacting anything. A cover section () having a substantially tongue-like shape adapted to the recess () is projected integrally from a rotor support member () covering the tray recess () from above and defining a substantially cylindrical housing space () for coaxially housing the optical disc (), the cover section continuously covering the recess () of the disk tray () and the housing space (). Even when the optical disc () is rotated at a high speed, flutter attributable to airflow or a difference between pressures on both sides of the optical disc () can be reduced to allow the optical disc () to rotate with stability.