Abstract: To reduce vibration in the rotation direction acting on the hard disk drive with a part of the hard disk drive as the rotation center. The disk unit comprises a hard disk drive comprising a drive mechanism which rotates and drives a plurality of disk media, an arm rotatably supported on a pivot and placed as movable in the rotation area of the disk media, and an actuator which performs positioning control of the magnetic head fixed to the arm to a target position on the disk media, a frame supporting the hard disk drive, and a dynamic absorber placed in the hard disk drive or in the frame, wherein the dynamic absorber absorbs vibration in the rotation direction acting on the hard disk drive with a part of the hard disk drive as the rotation center.

Abstract: In a storage device provided with a plurality of recording devices, the vibrations which propagate to the recording devices through a board can be reduced with a small number of parts. A storage device equipped with a plurality of recording devices having: a canister equipped with the recording device; a board equipped with a circuit that transmits a signal to the recording device or processes a signal; a chassis equipped with the board and the canister; a plate-like piezoelectric element attached to part of the board; a vibration detection sensor attached to part of the board; and a control unit that controls a drive signal given to the piezoelectric element in accordance with a sensor output of the vibration detection sensor is proposed.

Abstract: To reduce vibration in the rotation direction acting on the hard disk drive with a part of the hard disk drive as the rotation center. The disk unit comprises a hard disk drive comprising a drive mechanism which rotates and drives a plurality of disk media, an arm rotatably supported on a pivot and placed as movable in the rotation area of the disk media, and an actuator which performs positioning control of the magnetic head fixed to the arm to a target position on the disk media, a frame supporting the hard disk drive, and a dynamic absorber placed in the hard disk drive or in the frame, wherein the dynamic absorber absorbs vibration in the rotation direction acting on the hard disk drive with a part of the hard disk drive as the rotation center.

Abstract: A storage device having a plurality of recording devices in which a decrease in vibrations from the recording devices can be achieved with a small number of parts. A storage device having a plurality of recording devices mounted therein includes a handle for inserting and withdrawing the recording device into and out of the storage device. Two holding members each include a mounting portion where the recording device is mounted and a frame extending from the mounting portion to the handle. Two protrusions are formed to extend inwardly of a region surrounded by the recording device, the handle, and the two frames. A restriction plate is disposed so as to overlap the respective surfaces of the two protrusions; and a viscoelastic body is disposed at the overlapping portion for joining the two protrusions and the restriction plate to one another.

Abstract: A galvanoscanner including: a rotor including a shaft as a rotational center, and permanent magnets disposed around the shaft and polarized to a plurality of poles in a circumferential direction of the shaft; and a stator disposed in the outside of the rotor through a clearance and including coils, a yoke, and an outer casing so that the rotor swings in a predetermined angle range; wherein: the permanent magnets are provided with grooves which are formed in a direction of the rotation shaft so as to straddle circumferentially adjacent magnetic poles of the permanent magnets; and the permanent magnets are parted into at least two parts per pole by parting lines. Thus, the ratio of the torque constant to the moment of inertia can be improved so that the current required for driving can be reduced and reduction of power consumption at driving time can be attained.

Abstract: The storage case has a structure in which a sample storage case (S) contained in a storage case is cooled and held at a low temperature by a Stirling refrigerator. A detection element is disposed in a room-temperature area of the storage case. The chemical or physical property of the detection element varies when a contaminant adheres to the detection element. Entrance of a contaminant into the storage case can be checked by contactlessly checking the detection element from the outside of the storage case. The storage case includes a server for receiving the result of the check from the detection device, storing the result, and setting up connection via a communication line to at least two out of a terminal operable by the forwarder, a terminal operable by the carrier, and a terminal operable by the recipient to transmit the result to the two.