Patent application number | Description | Published |
20080232070 | OPENING AND CLOSING DEVICE - An opening and closing device in which a movable gear is movably disposed on a fixed plate, and a fixed gear engaged with the movable gear is secured to a right end of a spring member applying a force to a movable plate in a moving direction. This right end of the spring member is installed in an L-shaped guide hole and a left end of the spring member is attached to the movable plate. With this structure, the opening and closing device offers combined operations in an up-and-down direction and a right-and-left direction orthogonal to the up-and-down direction. | 09-25-2008 |
20090034113 | Disk device and electronic equipment using the same - It is equipped with a magnetic recording medium, a spindle motor which rotates the magnetic recording medium, ahead portion which carries out at least any one of recording and reproducing of information, an actuator which supports the head portion, a voice coil which turns the actuator, a relay wiring body which is electrically connected to the head portion and the voice coil, and a motor wiring body which is electrically connected to the spindle motor, and a housing is equipped with a connector by which the relay wiring body and the motor wiring body are electrically connected in the housing for giving and receiving an electric signal between the relay wiring body and the motor wiring body and a control section. | 02-05-2009 |
20090052090 | Disk device and electronic equipment using the same - A disk device includes an actuator which can be turned around a shaft bearing portion as a turning center in a radius direction of a recording medium, a ramp block which holds a part of the actuator on the occasion of retracting a head portion of the actuator, a circuit substrate portion which carries out at least any one of transmission and reception of a signal to and from at least a head portion and the actuator, an upper side chassis, and a lower side chassis, and a turning shaft of the actuator, the ramp block and the circuit substrate portion have fastening portions on both sides in a perpendicular direction to the recording medium, respectively, and by fastening the fastening portions from the upper side chassis and the lower side chassis, the actuator, the ramp block and the circuit substrate portions are incorporated in the upper side chassis and the lower side chassis. | 02-26-2009 |
20090109576 | HEAD SUPPORT DEVICE AND DISK DEVICE WITH THE SAME - A head supporting arm coupled at one end with a head slider is supported so as it can revolve in parallel to the surface of a recording medium around a shaft for horizontal revolution, at the same time can revolve perpendicularly to the surface of recording medium around an axis for vertical revolution, which axis for vertical revolution being a straight line which contains the summit points of a pair of pivots. Further, voice coil unit is structured so as the center line of voice coil makes an angle θ to the center line of head supporting arm, and the center of gravity in centroid setting portion of the voice coil unit locates at a place which is at least in the direction anti-clockwise around the center of shaft for horizontal revolution with respect to the center line of head supporting arm. The above-configured head supporting gear provides such advantages as the downsizing of a disk drive, stabilized frequency characteristics, easier setting of load to the head at high accuracy level. | 04-30-2009 |
20090122447 | DISK DEVICE - A disk drive includes a magnetic recording medium rotatably supported, a spindle motor for spinning the recording medium, a slider having a head, a supporting arm having the slider at a first end facing the recording medium, a bearing for holding the supporting arm rotatably along a recording surface of the medium and pivotably in a vertical direction with respect to the recording surface, a leaf spring giving thrusting force to a first end of the supporting arm toward the medium, and a driver for rotating the supporting arm along the recording surface. When the driver rotates the supporting arm along the recording surface and parks the head in a given evacuation area on the recording surface, a second end of the supporting arm is depressed. | 05-14-2009 |
20090207526 | Head Support Device, Disk Device Having The Head Support Device, And Portable Electronic Device Having The Disk Device - A head support device allowing a further increase in shock resistance against an external impact, a disk device having the head support device, and a portable electronic device having the disk device are disclosed. In the head support device, head support arm on which head slider with a head is disposed through a flexible and elastic gimbal mechanism is formed rotatably about rotary shaft as a horizontal rotating axis in parallel with a disk surface. Head support arm is formed such that it pivots about a straight line drawn between apexes of a pair of pivots as vertical pivot axis vertically with respect to the disk surface. A gravity center position of a total mass of members, except the head slider, pivoting about vertical pivot axis is positioned near vertical pivot axis. The disk device includes the foregoing head support device. | 08-20-2009 |
20100201756 | PIEZOELECTRIC ACTUATOR, LIQUID DISCHARGING HEAD, AND METHOD FOR MANUFACTURING PIEZOELECTRIC ACTUATOR - A piezoelectric actuator includes a piezoelectric sheet, a first electrode provided on a front surface of the piezoelectric sheet, a second electrode provided on a reverse surface of the piezoelectric sheet and opposing at least a portion of the first electrode, and a fixed portion for supporting the piezoelectric sheet with the first and second electrodes provided thereon from a front surface side and a reverse surface side of the piezoelectric sheet. A sliding layer is provided between the fixed portion and the first electrode and between the fixed portion and the second electrode so as to allow for a relative displacement between the piezoelectric sheet and the fixed portion. | 08-12-2010 |
Patent application number | Description | Published |
20110211274 | HEAD ASSEMBLY, MAGNETIC DISK DRIVE APPARATUS AND ROTATION MECHANISM - A head assembly includes a slider having a head element, a load beam, a fulcrum formed at a top end section of the load beam, a slider support plate for supporting the slider to freely turn around the fulcrum, at least one drive element for applying a turning force to the slider support plate in a plane thereof, a first linear link part having at both ends a first top end joint part mechanically connected to the slider support plate, and a first base end joint part mechanically connected to the load beam, and a second linear link part having at both ends a second top end joint part mechanically connected to the slider support plate, and a second base end joint part mechanically connected to the load beam. Both of an extended line of the first linear link part and an extended line of the second linear link part travel toward a position of the fulcrum and intersect with each other. | 09-01-2011 |
20120287536 | HEAD SUPPORT MECHANISM - A head support mechanism includes a slider on which a head element is mounted is arranged at a tip end part of a load beam. The head support mechanism includes a support projection arranged at the tip end part of the load beam, a gimbal part including the slider and arranged to support the slider in a revolvable manner around the support projection, a displacement member arranged to revolve the slider around the support projection, and a counter balance aligned along a symmetric axis of the gimbal part so as to align a centroid of the gimbal part including the slider with the support projection. | 11-15-2012 |