Kokusan Denki Co., Ltd.

Yoshimasa Serizawa

Takahiro Osada

A rotor for an electric rotary machine having signal generating inductor magnetic poles provided on a periphery thereof comprising a cup-like rotor yoke having a peripheral wall and a bottom wall and an inductor forming member mounted on the peripheral wall of the cup-like yoke and including a ring-like portion fitted onto the peripheral wall of the rotor yoke and having the inductor magnetic poles formed thereon and securely mounted on the rotor yoke by forcing protrusions formed on the peripheral wall of the rotor yoke against the both axial ends of the ring-like portion.

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Numazu, Japan

Yoshimasa Serizawa