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. 03, 1992
Filed:
Mar. 26, 1990
Applicant:
Inventors:
Masahiko Chaya, Yokohama, JP;
Naoki Imokawa, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 72 ; 15DI / ;
Abstract
A disc cleaning device for cleaning the surface of a disc-type recording medium comprises a belt type cleaning device which is adapted to be operated in the radial direction of the recording medium so as to clean the surface of the recording medium and a pressurizing device which presses the cleaning member against the surface of the recording medium at a region to be cleaned while keeping a cleaning surface of the cleaning device in contact with the surface of the recording medium.