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. 27, 2004
Filed:
Aug. 06, 2002
Applicant:
Inventors:
Minoru Nakano, Tokyo, JP;
Masaaki Ueno, Tokyo, JP;
Assignee:
Hitachi Kokusai Electric, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/100 ;
U.S. Cl.
CPC ...
H01L 2/100 ;
Abstract
A temperature control method is provided which is capable of maintaining the accuracy of control based on a detected value of a temperature sensor substantially constant regardless of a change in an error of measurements of the temperature sensor. Measured values of thermocouples A, B, C of a thermocouple thermometer and those of sensor members A, B, C of a radiation thermometer of a sheet-feed apparatus are detected as the processing proceeds. A temperature control parameter of the sheet-feed apparatus is made to change based on differences between the detected temperature values as the processing proceeds.