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:
Nov. 25, 1980
Filed:
Nov. 08, 1978
Applicant:
Inventor:
Ikuyasu Kaminaka, Osaka, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 / ; 219 / ; 361384 ;
Abstract
A microwave oven comprises a magnetron for microwave cooking purposes, a heater disposed in an oven cavity for electric heating cooking purposes, and a digital control system including a semiconductor microprocessor for controlling operation of the magnetron and the heater in accordance with a desired program. A cooling fan is driven to rotate to cool the semiconductor microprocessor during the electric heating cooking operation and for a predetermined period of time subsequent to the completion of the electric heating cooking operation.