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:
Aug. 31, 1993
Filed:
Apr. 24, 1992
Applicant:
Inventors:
Kazuo Kobayashi, Saitamaken, JP;
Yoshinori Yamada, Saitamaken, JP;
Masakazu Kurumada, Saitamaken, JP;
Shinji Nakayama, Saitamaken, JP;
Akira Takahashi, Saitamaken, JP;
Fuyuki Shirai, Saitamaken, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369264 ; 369271 ;
Abstract
A compact disk player has a polycarbonate turntable, and a clamper (201) for clamping a compact disk on the turn table. The turn table is made of the same material (polycarbonate) as the compact disk and includes a disk body, a central hub projected from the disk body to receive a center hole of a compact disk and a peripheral annular portion formed integrally with the disk body.