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:
Mar. 25, 1997
Filed:
Apr. 12, 1995
Applicant:
Inventors:
Yuichi Kawakami, Itami, JP;
Takayuki Hamaguchi, Takarazuka, JP;
Nobukazu Kawagoe, Toyonaka, JP;
Hideaki Nakanishi, Ibaraki, JP;
Natsuko Waki, Jyoyo, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15 98 ; 15319 ; 153401 ; 15491 ; 15 501 ; D15 / ;
Abstract
A cleaner comprises a driving unit which moves the cleaner, a cleaner unit which cleans an object to be cleaned, a sensor by which a degree of dirt on the object is detected, and a driving controller which controls the driving unit on the basis of the detected degree of dirt. The cleaner unit further comprises a controller which compares the degrees of dirt detected by the sensor before and after a cleaning operation.