Nidec Corporation

Hideya Ikemoto

Nobuaki Yasumoto

Hitoshi Takeuchi

Hironori Tsukamoto

A data storage medium support member is produced by resin molding. The data storage medium support member includes an accommodating portion, a guide portion, and a gate cut portion. The accommodating portion accommodates a magnetic member around a central axis. The guide portion has a guide surface for guiding an inner edge of a disc, and is arranged radially outward of the accommodating portion. The gate cut portion is formed on a rear surface of the guide portion. The data storage medium support member can be produced by the resin molding while securing space for accommodating the magnetic member and preventing an increase in the axial dimension of the data storage medium support member.

Data storage medium support member, chucking device, brushless motor, and disc drive apparatus

A drive motor for a recording disk of one example of the present invention includes a rotor holder () fixed to a shaft () which is a rotational member and a centering portion (). A spacer () is provided between a base portion of a chuck (), at least one portion thereof is accommodated in the centering portion (), and a rotor holder ().

Growing community of inventors

Kyoto, Japan

Hideya Ikemoto