Matsushita Electric Industrial Co., Ltd.

Toshio Yamamoto

Shigeo Murase

Jyoji Kamata

Yoshinari Asano

Masayuki Shinto

Makoto Obata

Kouichirou Yamaguchi

The motor includes the following elements: a stator-core having plural teeth, and a yoke that links the teeth, coils wound on the teeth in a concentrated winding form, and a rotor with interior permanent magnets. The rotor with interior permanent magnets includes the following elements: a rotor core having plural slits of which ends extend closely to the rotor circumference, permanent magnets positioned in the slits, non-magnetic-sections provided between the circumference of the rotor-core and respective ends of permanent magnets. This construction allows the motor to withstand persistently demagnetization, to be a smaller size with high efficiency, and to be manufactured in a highly efficient manner. The motor can be integrated as a driver into an apparatus driving unit.

Motor using rotor including interior permanent magnet, and apparatus-driving-unit employing the same motor

A central air conditioning system for a multistory, multiroom building is arranged with a local re-conditioning unit mounted within a ceiling chamber of the building and combined with an illuminating appliance. Air in the space to be air conditioned is admitted to the re-conditioning unit through an air inlet opening formed in the illuminating appliance and is withdrawn from the re-conditioning unit into the space to be air conditioned through an air outlet opening also formed in the illuminating appliance.

Combination re-conditioning unit and illuminating appliance for use with

A method of and an air conditioning unit for re-conditioning air supplied by a central air conditioning system and circulated through a space to be air conditioned, characterized in that water condensate produced by the evaporation of a refrigerant is vaporized by the heat of condensation of the refrigerant and is discharged from the ceiling chamber above the space air conditioned.

Growing community of inventors

Kadoma, Japan

Toshio Yamamoto