Panasonic Intellectual Property Management Co., Ltd.

Takeshi Kowa

Akihiko Watanabe

Hiroaki Kawasaki

Yoshinori Isomura

Tatsuo Maetani

A motor of the invention has a rotary body of a rotor, and the rotary body includes an outer core constituting an outer portion of the rotary body, an inner core constituting an inner portion connected to a shaft, and a dielectric layer disposed between the outer core and the inner core. The outer core has a protruding portion that protrudes inward from an inner surface thereof, and the inner core has a protruding portion that protrudes outward from an outer surface thereof, wherein the outer core and the inner core are so disposed that an end face of the protruding portion of the outer core and an end face of the protruding portion of the inner core confront partially with respect to each other.

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Osaka, Japan

Takeshi Kowa