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. 13, 1991
Filed:
Apr. 03, 1989
Applicant:
Inventor:
Kenichi Moriya, Tokyo, JP;
Assignee:
Toho Kogyo Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F11B / ; G11B / ;
U.S. Cl.
CPC ...
369 71 ; 369 72 ; 360128 ; 360133 ;
Abstract
Cleaning disk of this invention contains a circular shaped body substantially identical to those of a recording optical disk and a detachable cleaner chip having a band-like cloth inserted through the notched grooves, the cleaning disk being formed with a round through hole at the position devated from the center thereof the cleaner chip being snapped in to said round through hole of said body. The cleaning disk is mounted on an optical disk system, the optical head is cleaned by the system actuation.