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:
Jul. 07, 1992
Filed:
Jan. 16, 1991
Applicant:
Inventors:
Hiroyuki Hasegawa, Saitama, JP;
Takashi Naito, Kanagawa, JP;
Mineaki Suzuki, Tokyo, JP;
Hironari Hoshino, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
369292 ; 369 71 ; 369 72 ; 360128 ; 15160 ;
Abstract
An objective lens cleaning cartridge for an optical disc drive apparatus is comprised of a cartridge body, and a cleaning member freely protruding from and retractable into the cartridge body in unison with a loading operation of the cartridge body into the disc drive apparatus, the cleaning member being slidably in contact with an objective lens of an optical pickup device provided within the disc drive apparatus.