Sony Corporation

Eiji Oshima

Kazuyuki Yamamoto

Kazuo Takahashi

Toshio Mamiya

Takashi Yamada

A disk storage apparatus has a magnetic head ( ) that is completely retracted outside of a disk cartridge, except upon a reading/writing operation. The magnetic head ( ) is inserted into the disk cartridge ( ) only upon the reading/writing operation. The disk storage apparatus can completely retract a rotation actuator to an outside of a disk cartridge. The disk storage apparatus can be reliably and stably operated and has a reduced overall thickness.

Disk apparatus, method of accessing head thereof to disk-like recording medium, and method of retracting the same

In a removable disk storage apparatus, a reading/writing head can be stably and reliably moved so as to correspond to an information recording medium. A rotation supporting member for supporting the reading/writing head is formed of a rotary arm and an elastic supporting member fitted to a tip end portion of the rotary arm for supporting the reading/writing head. The rotary arm member is formed by bending it so that it should be dogleg-shaped. The elastic supporting body is fixed on a tip end portion of a bent portion thereof in the extended direction in which the elastic supporting body is bent. The rotary arm is inserted into a disk cartridge substantially straight with its tip end being faced to the disk cartridge, and then supported by a ramp on a center line thereof.

Method of accessing a disk-like recording medium in a disk cartridge

Removable disk storage apparatus and device for accessing the recording

A removable disc cartridge including a case including a top shell and a bottom shell which contains rotatably a disk. The removable disk cartridge is insertable into a disk drive and has a curved portion formed on one side, an opening formed on a portion of the curved portion, and a shutter for opening and closing the opening. The curved portion in this disk cartridge is asymmetrical in the left and right directions with respect to a center line along the direction of insertion into the disk drive. The removable disk cartridge further has a guide groove on at least one other side thereof and an arm which is disposed in the guide groove for opening and closing the shutter.

Removable disk cartridge and manufacturing method thereof

Magnetic head

Disc cartridge

Growing community of inventors

Kanagawa, Japan

Eiji Oshima