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:
Nov. 08, 2005
Filed:
Jun. 28, 2002
Applicants:
Manabu Obata, Kanagawa, JP;
Mitsunori Matsumura, Tokyo, JP;
Yoichiro Mitsumoto, Tokyo, JP;
Hideaki Tsutsumi, Tokyo, JP;
Inventors:
Manabu Obata, Kanagawa, JP;
Mitsunori Matsumura, Tokyo, JP;
Yoichiro Mitsumoto, Tokyo, JP;
Hideaki Tsutsumi, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B017/04 ;
U.S. Cl.
CPC ...
Abstract
Disclosed is a disk recording and reproduction apparatus for recording and/or reproduction of optical disks of multiple different formats impossible to record or reproduce with a single pickup. A disk recording and reproduction apparatus containing a base unit () with two separate optical pickups () and () corresponding to two different format types and installed around the center of a turntable () for rotating a disk.