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:
May. 23, 2000
Filed:
Jan. 09, 1998
Tetsuya Koda, Osaka, JP;
Yumiko Hara, Osaka, JP;
Yasumichi Kobayashi, Osaka, JP;
Emiko Ishizaki, Mie, JP;
Kenji Watanabe, Nara, JP;
Teruhiko Hiraishi, Osaka, JP;
Masaaki Sano, Kyoto, JP;
Tomozaku Ito, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A microwave oven including a defrosting step in which a target which must be heated is irradiated with microwaves which are irregular in terms of time at least when the phase of water in the target is shifted from a solid body to liquid. The microwave oven includes a magnetron for generating microwaves for dielectrically heating a target which must be heated; and a waveguide through which microwaves generated by the magnetron are propagated into a heating chamber, wherein a defrosting process is performed in such a manner that microwaves which are irregular in terms of time and which are in a chaos state are propagated through the waveguide at least when the phase of water in the target is shifted from a solid body to liquid.