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:
Jan. 05, 1988
Filed:
Aug. 07, 1984
Applicant:
Inventors:
Akimasa Nishimura, Kanagawa, JP;
Nobuo Tezuka, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 97 ; 360 99 ; 369 48 ; 369 58 ;
Abstract
An apparatus using a disc-shaped record bearing medium having an engaging portion and at least one rotation indication portion, including a rotation mechanism for rotating the medium, a pressing device for mounting the medium on the rotation mechanism at the engaging portion, and a detection mechanism provided on a portion of the pressing device for detecting the rotation indication portion of the medium.