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:
Aug. 20, 1996
Filed:
Jan. 27, 1995
Applicant:
Inventor:
Mika Morita, Nagoya, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219703 ; 219708 ; 219718 ; 99325 ;
Abstract
A microwave oven includes a control section storing a long period pattern in which each period of on and off times is relatively long and a short period pattern in which each period is shorter than that in the long period pattern. A magnetron is controlled to be turned on and off in accordance with either period pattern. The short period pattern is selected when frozen food is thawed. Since the on time in each period of the short period pattern is short, the frozen food is exposed to microwave for a shortened period of time. As a result, unevenness in the thawing is prevented.