Sony Corporation

Masanori Kitamura

Hideho Maeda

A card-receiving device for receiving a card having a plurality of terminal electrodes at an end in the insertion direction includes a loading slot for the card, a plurality of connecting terminals respectively connected to the terminal electrodes of the card, a reference plane against which one surface of the card in the thickness direction is pressed, a height-adjusting section pressed against the other surface of the card in the thickness direction, and first biasing means for biasing the height-adjusting section toward the reference plane.

Card-receiving device

In a revolution detector of a drive motor of a disk drive, the rotor of the drive motor comprises a shell and a rotary magnet which is secured to the shell. A plurality of through holes of the detector, in which the rotary magnet is partially exposed, are provided at predetermined intervals in such positions of the shell as to give no influence to the magnetic circuit from which the output of the drive motor is derived, and the revolution characteristic of the drive motor is obtained by means of detecting the holes by a sensor in the detector, so that it becomes easier to manufacture the detector, and it is possible to detect the revolution of the drive motor with high accuracy without lowering the efficiency of the drive motor.

Growing community of inventors

Ibaraki, Japan

Masanori Kitamura