Patents by Inventor Tomozaku Ito

Tomozaku Ito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Microwave oven
    Patent number: 6066838
    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.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: May 23, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Koda, Yumiko Hara, Yasumichi Kobayashi, Emiko Ishizaki, Kenji Watanabe, Teruhiko Hiraishi, Masaaki Sano, Tomozaku Ito