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. 30, 1990
Filed:
Sep. 23, 1988
Applicant:
Inventor:
Manabu Matsumoto, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G23N / ;
U.S. Cl.
CPC ...
355285 ; 207117 ; 219216 ;
Abstract
An abnormality in a rotatable heat roller is detected by measuring its temperature at a specified time after the heating of the roller is started. This specified time is not fixed but is variably set according to the length of time during which the roller is rotated.