Matsushita Electric Industrial Co., Ltd.

Yasumichi Kobayashi

Hidetaka Yabuuchi

Osamu Eguchi

Shinji Kondoh

Haruo Terai

Kenji Watanabe

Masaaki Sano

Emiko Ishizaki

Yumiko Hara

Teruhiko Hiraishi

Tomozaku Ito

Tetsuya Koda

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.

Microwave oven

A zone of a floor to be cleaned is subdivided into a plurality of blocks, the position of each block is memorized in a memory of a self-running cleaning apparatus, and the status of each block such that a wall or an obstacle is placed on the block or the block is passed by the cleaning apparatus thereon is also memorized in the memory. The cleaning apparatus moves across the blocks having neither wall nor obstacle thereon and which have not been passed by the cleaning apparatus on the basis of a predetermined priority order in running direction.

Self-running cleaning control method

Self-running cleaning apparatus

Growing community of inventors

Toyonaka, Japan

Yasumichi Kobayashi