| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 720703000 | Optical storage disc holding structure | 84 |
| 20090037944 | Holding device and disk device - A support ( | 02-05-2009 |
| 20090044213 | Slot-In Type Disk Drive - A disk drive includes a chassis having a spindle motor for rotating a disk and a read/write head for reading or writing data on the disk, a slide block disposed at one side of the chassis and slidable reciprocally along an entrance-and-exit route defined by the disk, and a support member mounted on the slide member so as to be movable together therewith. The support member supports the disk from below during inserting the disk into the disk drive. | 02-12-2009 |
| 20090125931 | Turntable device and disk driving device having the same - A turntable device and a disk driving device having the same are disclosed. A turntable device for securing a disk includes: a cone part, which receives the disk in a detachable manner; a base, on which the disk may be mounted, and on which a boss is formed; and a yoke, which is coupled to the boss, and which supports the cone part in a manner such that the cone part is separated from the boss and is capable of sliding. This turntable device can improve alignment between the rotation centers of the motor and the disk, even in high-speed rotations. | 05-14-2009 |
| 20090172719 | DISK DEVICE AND ELECTRONIC APPARATUS - An optical disk drive includes a device body. A turntable is disposed on the device body, for rotating a disk. There is an optical pickup head for reading and/or writing of data with the disk. A multi-segment cover assembly is shiftable between a folded position and a spread position. The multi-segment cover assembly, when in the folded position, allows loading and unloading of the disk on the turntable, and when in the spread position, has a larger area than when in the folded position, and contains and protects the disk on the turntable. The multi-segment cover assembly includes a plurality of pie-shaped cover sectors, rotatable about an axis defined concentrically with the turntable, for extending to nest in one another when in the folded position, and for spreading by offsetting from one another when in the spread position. | 07-02-2009 |
| 20100088713 | DISK HOLDER, DISK ALIGNMENT MECHANISM AND DISK DRIVE - A disk holder, disk alignment mechanism and disk drive employing same that for permitting accurate alignment of a disk are provided. | 04-08-2010 |
| 20100100895 | Disc distribution apparatus - A distribution apparatus for a plurality of discs each having an aperture therethrough utilizing a shaft. The shaft is sized to fit within each of the apertures of the plurality of discs when such discs lie in a stacked configuration. A movable contact supported by the shaft extends from the shaft to engage the edges of the disc surrounding the apertures of the discs. Such extension of the moveable contact holds each of the discs to the shaft. A quick retraction of the movable contact releases a single disc and the remaining disc are again held by the movable contact by its subsequent extension. Feet on the shaft may hold a single disc released from the disc stack held by the moveable contact. Retraction of the feet releases a single disc from the shaft. | 04-22-2010 |
| 20100192169 | DATA STORAGE MEDIUM SUPPORT MEMBER, CHUCKING DEVICE, BRUSHLESS MOTOR, AND DISC DRIVE APPARATUS - 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. | 07-29-2010 |
| 20100262984 | Optical storage medium, optical read/write apparatus, and optical read/write method - An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area. | 10-14-2010 |
| 20100262985 | Optical storage medium, optical read/write apparatus, and optical read/write method - An optical read/write apparatus causes a read/write light beam from illuminating means to strike only one side of an optical storage medium including stacked data storage layers each of which is readable/writeable separately from the other layers. In this case, the optical read/write apparatus operates so that data is read/written from/into a second data storage layer after fully recording a recordable area of a first data storage layer. Thus, light can be shone with uniform intensity across the substantially entire recordable area of the second data storage layer without using a complex read/write system even under such conditions that the transmittance to light of the first data storage layer in the recordable area may vary depending on whether any data is recorded in the recordable area. | 10-14-2010 |
| 20100299685 | DISC DEVICE - A disc device capable of achieving a slimming down of a tilt adjusting portion is provided. A tilt adjusting portion | 11-25-2010 |
| 20100313212 | TURNTABLE AND METHOD FOR MANUFACTURING THE SAME - A turntable for a storage disk drive apparatus includes a plate member made of a ferromagnetic material and a central resin member arranged at the center of the plate member and formed into a single member by injection-molding a resin. The plate member includes a peripheral plate portion and a central plate portion positioned higher than the peripheral plate portion. The central plate portion includes a plate center hole defined at the center of the plate member. The central resin member includes a resinous cylinder portion extending through the plate center hole and defining a resin central through-hole, a disk guide portion arranged to guide a disk center hole, and a resinous connector portion arranged above the central plate portion to interconnect the resinous cylinder portion and the disk guide portion. | 12-09-2010 |
| 20110067041 | Mounting Structure of Optical Member, and Pickup Apparatus and Disc Apparatus Including the Same - A mounting structure for an optical member comprising: an optical member; a holding member having the optical member mounted thereon; and a position adjustment member disposed between the optical member and the holding member, the position adjustment member configured to adjust a mounting position of the optical member. | 03-17-2011 |
| 20110197212 | Encoder sensor, motor provided with encoder sensor and optical disk driving device equipped with motor - There is provided an encoder sensor according to an exemplary embodiment of the present invention. The encoder sensor may include: a light emitting unit and a light receiving part disposed at a distance in a readable range of an encoding mark of a disk; a receiving part receiving the light emitting unit and the light emitting unit; and a lead frame extending into an opposite direction of the disk from the receiving part and electrically connected to a printed circuit board. | 08-11-2011 |
| 20110214139 | DISK STABILIZER TO PREVENT DISK STICKING AND METHOD THERETO - A disk stabilizing plate is disposed oppositely below a thin disk for the purpose of allowing the thin disk to rotate stably, in a recording and reading device that uses a flexible thin disk for recording and reading. The disk stabilizing plate has a movable disk support member, relative to the prescribed rotation condition of the thin disk, that is caused to protrude upward from the surface of the disk stabilizing plate to touch and support the thin disk, or that is drawn downward from the surface of the disk stabilizing plate from the state touching and supporting the thin disk so that the state wherein the thin disk is touched and supported is terminated. | 09-01-2011 |
| 20110307911 | CIRCUIT BOARD, MOTOR, DISK DRIVE APPARATUS AND CIRCUIT BOARD MANUFACTURING METHOD - A circuit board for supplying therethrough an electric current to a stator including windings arranged to generate magnetic fields includes a body portion having a rectangular shape when seen in a plan view and mounted with electronic parts, and an extension portion protruding from the body portion substantially along a circumferential direction around a rotation axis of the motor when seen in a plan view. The extension portion includes a distal end extension opposed to the body portion through a gap when seen in a plan view. The transverse width of the extension portion is smaller than the gap. The body portion includes an outward connector portion connected to an external power source or an external circuit board. The extension portion includes a winding connection portion connected to the outward connector portion through a wiring portion. The windings are soldered to the winding connection portion. | 12-15-2011 |
| 20120005698 | Turntable for motor and method for producing the same - There is provided a turntable for a motor, including: a rotor case equipped with a chucking mechanism mounting a disk; a disk holding base part formed on the rotor case to be protruded by denting and disposed to be spaced apart from each other in order to form an air passage communicating a space formed between the disk and the top surface of the rotor case with the outer side of the rotor case; and a disk holding friction part stacked on the disk holding base part and grounded to the bottom surface of the disk. | 01-05-2012 |
| 20120017227 | Motor and optical disc drive using the same - There is provided a motor formed to have a simple coupling structure between a base plate and a sleeve holder, thereby implementing a simple structure and reducing costs and processes taken for manufacturing the motor, and an optical disc drive using the same. To this end, the motor includes a base plate having at least one protrusion formed therein, and a sleeve holder having a body part, of which the shape is cylindrical and in which a sleeve is fitted, and a flange protrudingly formed from a lower end of the body part in such a manner as to make surface-to-surface contact with an upper surface of the base plate, wherein the flange is formed to have at least one insertion hole, through which the protrusion is inserted so that the sleeve holder is coupled to the base plate. | 01-19-2012 |
| 20120060174 | RECORDING/REPRODUCING APPARATUS AND RECORDING/REPRODUCING METHOD - A recording/reproducing apparatus is disclosed that includes a spindle motor unit including a spindle on which a flexible recording disk is placed, a stabilizer plate disposed so as to face the recording disk, a torque detection unit configured to detect a drive torque applied to the spindle motor unit, an adjustment unit configured to adjust a gap between the recording disk and the stabilizer plate, and a determination unit configured to determine an optimal gap to be set to the gap based on the drive torque detected by the torque detection unit, in which the adjustment unit sets the optimum gap determined by the determination unit to the gap. | 03-08-2012 |
| 20130024878 | SPINDLE MOTOR - Disclosed herein is a spindle motor including: a turn table made of a deformable iron based material; a turn table inner diameter part provided at the center of the turn table, having a hollow part, and including a coupling part formed in an inner peripheral surface thereof; and a shaft inserted into the hollow part of the turn table inner diameter part to thereby contact the coupling part and rotate in an axial direction. | 01-24-2013 |
| 20130067504 | MOUNTING STRUCTURE FOR ELECTRONIC EQUIPMENT AND ELECTRONIC APPARATUS HAVING THE SAME - A chassis, and a rigid mount member having at least three fixed support portions connected to the chassis are included. The rigid mount member has an installation surface for fixing a base unit, and with the installation surface being used as a reference plane which is along the horizontal plane, at least one of the fixed support portions is provided at a level higher than the center of gravity of the base unit on the side of one end edge of the installation surface, while at least the other one of the fixed support portion is provided at a level lower than the center of gravity of the base unit on the side of the other end edge of the installation surface. | 03-14-2013 |
| 20130339989 | ARCHIVE DEVICE - In an archive device which has a disc storing case which stores a plurality of discs, a disc writing/reading unit having an ODD, and a disc conveying unit which conveys each of the discs between both, the fixing strength for a drive fixer to be incorporated to fix the ODD can be increased. The archive device includes holding members which fix surfaces of the ODD in a direction parallel to a direction in which the disc is delivered and received between the disc conveying unit and the ODD, one of the holding members integrally including a detecting member which detects a relative position of the disc storing case with respect to the ODD. The holding members for the surfaces of the ODD may be individual components, and may be integrally formed. | 12-19-2013 |
| 20150348581 | MEDIA DEVICE TURNTABLE - An assembly can include a base; and a turntable rotatably coupled to the base where the turntable can include an optical port, a mount that positions an electronic device with respect to the optical port and at least one waveguide operatively coupled to the optical port. | 12-03-2015 |
| 720704000 | Having centering | 15 |
| 20080235720 | MOTOR WITH A CHUCKING DEVICE AND DISK DRIVE APPARATUS EQUIPPED WITH THE SAME - In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted; resilient members received within the center case; and claw members for holding the disk in place. Each of the claw members has a claw portion having a disk holding surface for holding the disk in place and a pair of wing portions extending radially inwardly from the claw portion. Further, each of the wing portions has a spherical contact surface contacting with a underlying part arranged axially below the wing portions. | 09-25-2008 |
| 20080250440 | Medium holding unit and medium processing apparatus - A holding portion includes at least three pressing members which are operable to press an inner peripheral of a hole formed on the medium. The pressing members are movable between first positions where the pressing members do not come in contact with the inner peripheral and second positions where the pressing members come in contact with and press the inner peripheral. Each of the pressing members is adapted to interlockingly move with each other when moving toward the first positions and to press the inner peripheral independently from the other members when positioning the second positions. | 10-09-2008 |
| 20080301726 | Apparatus for Centering an Information Medium on a Turntable - A turntable for an optical storage drive comprises a fitting member ( | 12-04-2008 |
| 20080307448 | Optical Disk Device - A restraining element | 12-11-2008 |
| 20090013343 | Disk Apparatus | 01-08-2009 |
| 20090019465 | OPTICAL DISK DRIVE - An optical disk drive is adapted for reading data from an optical disk. The optical disk drive includes a housing, a tray, and a read module. The tray is disposed in the housing and is adapted for ejecting from the housing. The read module is adapted for reading data from an optical disk. The read module includes a turntable and an optical read head. The turntable includes a number of engaging springs, in which at least one of the engaging springs include added material for superposing the center of the optical disk and the center of the turntable. Furthermore, the optical read head is adapted to move along a tracking path for reading data from the optical disk. | 01-15-2009 |
| 20090125932 | Turntable device and disk driving device having the same - A turntable device and a disk driving device having the same are disclosed. The turntable device, for detachably securing a disk, may include: a centering part, in an inner perimeter of which slots are formed along a circumferential direction that provide an elastic force; and a base, on which a conical extension part is formed that is configured to slidably support an inner perimeter of the centering part. The turntable device can improve alignment between the centers of rotation of the motor and the disk, even for high-speed rotations. | 05-14-2009 |
| 20100077419 | DISK DRIVE APPARATUS - A disk drive apparatus able to prevent jamming of a disk and abutting parts having a rotary table fit on a shaft of a brushless motor and carrying a disk and a centering part elastically biased in an axial direction away from a center hole of this rotary table and fit in a center through hole of the disk to center and hold the disk, the centering part having inelastic abutting parts sticking out from a center taper part in radial directions and abutting against an inner circumferential edge of the center through hole and having outer circumferential groove parts forming clearances from the inner circumferential edge between the inelastic abutting parts adjoining each other in the circumferential direction. | 03-25-2010 |
| 20100125863 | DISK HOLDING DEVICE AND DISK PROCESSOR - A disk holding device is for use with a disk having a center hole. A disk holding mechanism with coupling levers is movable between a holding position and a release position, for engagement with an edge of the center hole when in the holding position, and for coming away from the edge when in the release position. A solenoid shifts the disk holding mechanism, to hold the disk by setting the disk holding mechanism in the holding position, and to enable loading or unloading of the disk by setting the disk holding mechanism in the release position. A separating projection is opposed to the edge when inserted in the center hole, for receiving the edge while the disk holding mechanism moves to the release position, to ensure separation of the disk from the disk holding mechanism. | 05-20-2010 |
| 20110016478 | AXIAL FORCE SPINDLE CLAMP - A spindle clamp for supporting a disk includes a radial control member that is in contact with an opening through a jaw and that has a contour such that radial expansion of the jaw is induced during initial movement of the jaw toward a registration surface for seating the disk. However, the contour is such that further movement of the jaw toward the registration surface is an axial motion, rather than a combination of axial and radial motion. In one preferred embodiment, the jaw is unitary, but is configured to enable the radial expansion while having sufficient rigidity to reliably clamp a data disk seating on the registration surface. The jaw may include a lip which is configured to contact the major surface of the disk opposite to its contact with the registration surface. | 01-20-2011 |
| 20110247024 | Compact Disc Centering Apparatus of Compact Disc Player - A compact disc centering apparatus of a compact disc player includes carrying rollers which are disposed within a compact disc entry on the opposite sides thereof and a compact disc guiding; a pair of detection rods capable of synchronized rotating, which is disposed between a support plate and the compact disc entry. The apparatus also includes a control device and a trigger device, wherein, an engaging portion is disposed on the control device and extends along the direction in which the control device moves, and an engaged portion is disposed on the trigger device and engages with the engaging portion. When the engaged portion is located in the engaging portion, the contact between the engaging portion and the engaged portion makes the trigger device rotate and stop at a position such that the center of the compact disc is coincident with the center of the support plate. The structure of the compact centering apparatus according to the present invention is extremely simple, which enables the center of the compact disc to stop at a position coincident with the center of the support plate, and the compact disc does not return in the direction toward the compact disc entry even if there exists the effect of a reset spring of the trigger device. | 10-06-2011 |
| 20110265108 | Disk chucking apparatus, motor and disk driving device equipped with motor - There is provided a disk chucking apparatus according to an exemplary embodiment of the present invention, including: a centering case fixed on the inner peripheral surface of a disk; and a claw formed in the centering case and including a contact unit which rotates in a horizontal direction at the time of mounting the disk and is introduced into the centering case to elastically support the inner peripheral surface of the disk. | 10-27-2011 |
| 20110321068 | Disk chucking device and motor apparatus using the same - There is provided a disk chucking device including a disk chucking device including a centering case to which an inner circumferential surface of a disk is fixed, chucking members received in insertion holes formed in the centering case, and an elastic member connecting the centering case and the chucking members to each other in such a manner as to elastically support the inner circumferential surface of the disk, when the disk is mounted on the centering case, the elastic member having at least two bent portions by which displacements and restoring forces have a quadratic function relationship. | 12-29-2011 |
| 20120066701 | SPINDLE MOTOR - Disclosed is a spindle motor, the spindle motor including a rotating shaft, a turntable including a body into which a through hole is formed for coupling with the rotating shaft and which supports an optical disk and rotates along with the rotating shaft, and a centering unit which is fitted over the rotating shall, moves in an axial direction of the rotating shaft, and aligns a rotating center of the optical disk with a rotating center of the rotating shaft, wherein the turntable includes a reinforcing part that protrudes from the body along a periphery of the rotating shaft. | 03-15-2012 |
| 20140068643 | SPINDLE MOTOR - Disclosed is a spindle motor, the spindle motor including a turntable coupled to a rotating shaft and supporting the rotating shaft and a disc, a centering unit fitted over the rotating shaft and supporting an inner circumference of the disc, and a coil spring interposed between the turntable and the centering unit to elastically support the centering unit, wherein a first end of the coil spring is brought into contact with a spring hanging portion protruding from a side surface of the centering unit, and a second end opposite to the first end of the coil spring is supported by a spring support portion formed in the turntable. | 03-06-2014 |
| 720706000 | Details of clamping | 43 |
| 20090044214 | Optical Disk Drive - An optical disk drive has a horizontal adjustment mechanism for a spindle motor formed thereon. The optical disk drive includes a horizontal adjustment mechanism, disposed between a base plate on a traverse module and a securing plate on the spindle motor, to regulate an inclination angle of an optical disc on the spindle motor relative to a laser pickup head. | 02-12-2009 |
| 20090106784 | SPINDLE MOTOR AND CLAMPING APPARATUS - Disclosed is a clamping apparatus including a case having a side surface on which a plurality of arm holes are formed; an arm, which moves inside and outside the case through one of the arm holes while being restricted by the case and has an upper part and a lower part that are guided by the case; and an elastic member installed inside the case to elastically support the arm. | 04-23-2009 |
| 20100211965 | CLAMP STRUCTURE IN DISK PLAYING DEVICE - A clamp structure in a disk playing device is structured so that a clamper and a turntable are magnetically coupled to each other to sandwich a disk and that one of the clamper and the turntable is separated from the other to release magnetic coupling and detach the disk. The clamp structure may include a disk stopper for supporting the disk when, for example, the turntable is to be separated from the clamper to prevent the disk and the clamper from following and moving together with the turntable. The disk stopper may be disposed so as to face a non-recording area except a recording area of the disk and the disk stopper may be structured by utilizing a part of a chassis or a feeding roller for feeding the disk. | 08-19-2010 |
| 20100242058 | APPARATUS FOR CLAMPING DISK OF SPINDLE MOTOR AND SPINDLE MOTOR HAVING THE SAME - A disk clamping apparatus of a spindle motor and a spindle motor having the same are disclosed, wherein the apparatus includes a case inserted into an inner periphery of a disk for integrally rotating with a rotation shaft coupled with a rotor yoke, a plurality of claws each formed at a predetermined gap in the case, an arm mounted between the claws in the case and having a body with a slanted surface and slantedly formed at an upper surface of the disk, guide rails each mounted at both lateral surfaces of the body and a disengagement prevention rails each mounted at each guide rail and curvedly formed at the bottom surface for contacting the rotor yoke, and an elastic member elastically supporting the body by being interposed between the body and the case. | 09-23-2010 |
| 20110029994 | OPTICAL DISK DRIVE DEVICE - Disclosed herein is an optical disk drive device comprising an spindle motor rotating a turntable on which an optical disk is safely placed; a clamper adhering the optical disk to the turntable to clamp the optical disk into the turntable; and an upper case provided with a hollow part so opened as to make the clamper face the turntable, and a support part contacting and supporting the clamper as an edge of the hollow part, the support part being inclined against the turntable. | 02-03-2011 |
| 20110047563 | SPINDLE MOTOR HAVING A CHUCKING MEMBER - A spindle motor is disclosed, wherein a spindle motor includes a rotating shaft coupling to a rotor yoke for supporting an optical disc, a clamp case disposing on the rotor yoke and coupling to the rotating shaft; and a chucking member including a rim portion combined with the clamp case, a plurality of extension portion radically extruded from an edge portion of the rim portion, and chucking arm portions formed at each of the end portion of the extension portions to chuck an inner face of the optical disc. | 02-24-2011 |
| 20110072446 | DISK CLAMPING MECHANISM AND DISK DRIVE SYSTEM - A disclosed disk clamping mechanism includes a turntable fixed on a rotational shaft of a spindle motor to rotate a flexible thin optical disk, a stabilizer member configured to suppress a run-out of the flexible thin optical disk by an applying aerodynamic force to the rotating flexible thin optical disk so as to stabilize the run-out of the rotating flexible thin optical disk, and a clamper movably supported in a center of the stabilizer member in a direction perpendicular to a surface of the flexible thin optical disk. In the disclosed disk clamping mechanism, the flexible thin optical disk is sandwiched between the turntable and the clamper such that the turntable and the clamper rotate the flexible thin optical member sandwiched in-between. | 03-24-2011 |
| 20110138407 | SPINDLE MOTOR AND CLAMPER - A low-cost disk device with which the same spindle motor and clamper can be used for different types of disk device, such as a DVD drive. A clamper includes a clamper main body and a plurality of positioning components. The clamper main body clamps a disk between itself and a spindle motor that holds and rotates the disk. The plurality of positioning components are formed on the clamper main body for the relative positioning of the clamper main body and each of the plurality of spindle motors in the radial direction. | 06-09-2011 |
| 20110179432 | OPTICAL DISC DRIVE - Disclosed is an optical disc drive. The optical disc drive may include a clamp unit for selectively chucking an optical disc, a moving force transfer unit for transferring a moving force, of moving the clamp unit in an axial direction of the clamp unit, to the clamp unit, the moving force transfer unit being formed of a first synthetic resin material at least in part, and a lifting projection coupling body formed of a second synthetic resin material, coupled to at least one lifting projection protruding from the clamp unit toward the moving force transfer unit, and contacting the moving force transfer unit. Accordingly, noise generation at a joined portion between the moving force transfer unit and the lifting projection coupling body can be suppressed. | 07-21-2011 |
| 20110321069 | DISC-CLAMPING MECHANISM AND DISC DRIVING APPARATUS - A simplified dist-clamping mechanism is provided to decrease the number of parts and processes of the assembly of a disc-clamping mechanism. The disc-clamping mechanism has a clamping plate sandwiching a disc by cooperating with a turntable, and a clamp base rotatably holding the clamping plate. The clamping plate has a surface plate pressing a disc toward the turntable, a small-radius body portion having an outer diameter smaller than that of the surface plate portion, and a flange portion protruding more than an end portion in an axial direction of the small-radius body portion and being parallel to the surface plate portion. The clamp base is integrally formed while including a thin-plate shaped holding portion, a stopper piece, and a bent portion which extends from the holding portion. | 12-29-2011 |
| 20120017228 | Motor and disk drive device having the same - There is provided a motor including: a rotor case having a chucking device, on which a disk is mounted, press-fitted and coupled thereto; and disk support members mounted on an upper surface of the rotor case to support a bottom surface of the disk, and having each of flow path portions therebetween allowing for airflow in a space between the disk and the rotor case, wherein a push portion is disposed in at least one of the rotor case and the disk support members to accelerate the airflow through the flow path portions when the rotor case rotates. | 01-19-2012 |
| 20120017229 | CHUCKING DEVICE AND BRUSHLESS MOTOR AND DISC DRIVING DEVICE IN WHICH THE CHUCKING DEVICE IS INSTALLED - A cone part in a chucking device capable of freely attaching and detaching a disc having a disc shape includes an abutting portion for abutting an inner peripheral surface of a central through hole of the disc with substantially equal forces along an entire circumference thereof and aligning the disc. The cone part is made of a resin material having a high slidability than that of a material used for the disc. | 01-19-2012 |
| 20120042330 | Apparatus For Clamping Disk and Spindle Motor Having the Same - The disk clamp apparatus and a spindle motor having the same according to the present invention has an industrial applicability in that a radial force of a claw on a disk is greater than a radial force of an arm to the disk to prevent the radial force of the arm applying to the disk from affecting the disk, whereby matched center of the clamp body with a center of the disk by the law is not affected by an arm, such that the center of the disk comes to have a relatively smaller deviation from the center and to thereby enhance the reliability of the product. | 02-16-2012 |
| 20120185885 | TURN TABLE FOR SPINDLE MOTOR AND SPINDLE MOTOR HAVING THE SAME - Disclosed is a turn table for a spindle motor, the turn table including a clamping plate having a locking protrusion protruding from an inner surface of a first recess that is concavely formed in an outer circumference of the clamping plate, and a turn-table body having a second recess to receive the clamping plate and having protrusions that protrude from an inner surface defined by the second recess towards the first recess to lock an upper surface and a side surface of the locking protrusion. | 07-19-2012 |
| 20130111507 | TURNTABLE | 05-02-2013 |
| 20130152112 | DRUM FOR USE IN TESTING OPTICAL TAPE MEDIA AND METHOD AND APPARATUS FOR MOUNTING OPTICAL TAPE MEDIA ON DRUM - Various embodiments herein include utilities that facilitate the substantially flat and aligned mounting of optical tape segments on testing drums to increase testing accuracy of the tape segments. In this regard, a drum for testing optical tape media is disclosed having a substantially planar portion onto which first and second ends of an optical tape segment may be mounted to thereby secure the entire tape segment around an outer testing surface of the drum. Also disclosed is fixture that may be used to precisely mount and secure the tape segment over the outer mounting surface of a drum in a manner that reduces axial run-out and wrinkling of the optical tape. | 06-13-2013 |
| 20130247076 | SPINDLE STRUCTURE AND OPTICAL DISC DRIVE INCLUDING THE SPINDLE STRUCTURE - A spindle structure for an optical disc and an optical disc drive employing the spindle structure are provided. The spindle structure includes a spindle motor having a rotation axis, a spindle that is coupled to the rotation axis, and a sliding cone coupled to the spindle and inserted into a center hole of the optical disc. The sliding cone includes a plurality of hook-shaped guide rods extended toward the spindle, and the spindle includes guide holes, to which the plurality of hook-shaped guide rods are inserted into and coupled. | 09-19-2013 |
| 20140020001 | TURN TABLE FOR SPINDLE MOTOR AND SPINDLE MOTOR HAVING THE SAME - A turn table for a spindle motor and a spindle motor having the turn table are provided, the turn table for a spindle motor according to an exemplary embodiment comprising a clamping plate configured to have a locking protrusion protruding from an inner surface of a first recess thereof, the first recess being concavely formed in an outer circumference of the clamping plate; and a turn-table body configured to have a second recess to receive the clamping plate, and a plurality of protrusions protruding from an inner surface defined by the second recess towards the first recess to lock the locking protrusion. | 01-16-2014 |
| 20140223457 | OPTICAL DISK DRIVE INCLUDING SPINDLE UNIT AND CHUCKING STRUCTURE - Provided is a spindle unit. The spindle unit includes: a spindle motor having a rotation shaft; a turntable that is coupled to the rotation shaft and supports a data storage device; and a sliding cone coupled to the turntable so as to elastically move up and down and to be inserted into a hole formed at the data storage device. The sliding cone includes a bump protruding from a surface thereof, and the bump has a concave portion recessed downward from a center thereof. | 08-07-2014 |
| 20140259031 | CLAMPING APPARATUS FOR CARRYING A DISK IN AN OPTICAL DISK DRIVE - A clamping apparatus for being disposed in an optical disk drive and carrying a disk is provided. The clamping apparatus includes a base, a spindle assembly, a pawl and a buffer element. The spindle assembly is disposed on the base and rotating about an axis. The pawl is assembled to the spindle assembly. The disk is configured to be locked to the pawl, such that the spindle assembly drives the pawl and the disk to rotate about the axis. The buffer element is assembled to the spindle assembly, and the buffer element is located above the pawl. The buffer element interferes with the disk when the disk is separated from the pawl. | 09-11-2014 |
| 20140310734 | OPTICAL DISC DEVICE - An optical disc device includes: a loader body having a recess and slopes; a traverse chassis provided to the loader body and having a protrusion guided along the recess, the traverse chassis being vertically movable; a turntable provided to the traverse chassis, for mounting the optical disc; and a clamper which clamps the optical disc between the clamper and the turntable when the traverse chassis ascends relative to the loader body to a clamp position, in which when the traverse chassis is at a position lower than the clamp position, the protrusion is guided along the recess, and when the traverse chassis is at the clamp position, the protrusion is positioned inside the slopes. | 10-16-2014 |
| 20160163348 | DRIVE DEVICE FOR THE BIO-DISC DETECTION - A driver device and a method for bio-disc detection are provided. A spindle motor rotates a bio-disc by a central hole at a high speed. A step motor rotates a periphery of a clamper to rotate the bio-disc at a low speed. When the spindle motor and the step motor work together in conjunction with the separation, mixing and detection process, various rotation modes such as high speed mode, braking mode, direction switching mode and low speed rotation mode can be provided to increase the detection efficiency of the bio-disc. | 06-09-2016 |
| 20170236544 | DISC STORAGE CASSETTES | 08-17-2017 |
| 720707000 | Radially extending members | 6 |
| 20110023057 | BRUSHLESS MOTOR, AND DISK DRIVE EQUIPPED WITH THE SAME - In a brushless motor for use in a disk drive, a rotor is mounted onto a tube portion of a housing. A retaining claw is formed at an upper end of the tube portion. A turntable has a central concave portion which accommodates an upper portion of the tube portion of the housing. A retaining member is provided radially outside the central concave portion, and includes a plurality of retaining pieces extending to the inside of the central concave portion. When the rotor is mounted onto the housing, the retaining pieces come into contact with the retaining claw and then move upward. When the rotor moves upward relative to the housing, the retaining pieces come into contact with the retaining claw, thereby restricting upward movement of the rotor. Upward movement of the retaining pieces is restricted by contact between the retaining member and the turntable. | 01-27-2011 |
| 20110131592 | DISK CHUCKING APPARATUS - Disclosed herein is a disk chucking apparatus. The apparatus includes a central boss which is coupled to a rotating shaft of a motor, a guide which extends from the central boss outwards and is inserted into a center hole of a disk, and a chucking unit which extends from the central boss outwards. The chucking unit is elastically deformable inwards when pushed by the disk that is fitted over the guide. The chucking unit includes a lower horizontal part, a vertical part and an upper horizontal part. The lower horizontal part extends from the lower portion of the central boss outwards in the horizontal direction. The vertical part is bent from the outer end of the lower horizontal part upwards. The vertical part extends in a direction inclined outwards. The upper horizontal part extends from the upper end of the vertical part inwards in a horizontal direction. | 06-02-2011 |
| 20120174140 | DISK CHUCKING DEVICE - There is provided a disk chucking device including: a chucking mechanism body installed on a rotor case; a chuck chip movably installed on the chucking mechanism body and fixing a disk thereto; and a spring member installed such that both ends thereof are supported by the chucking mechanism body and the chuck chip, and including a permanent deformation suppressing part provided in a bent portion thereof in order to prevent permanent deformation of the bent portion when the disk is loaded and unloaded and having a smaller pitch than that of other portions. | 07-05-2012 |
| 20140020002 | APPARATUS FOR ROTATING DISK WITH IMPROVED ANTI-SLIP TORQUE - An apparatus for rotating disc is provided, the apparatus according to an exemplary embodiment is characterized in that an anti-slip torque that is applied to the upper face of the disc by using the clamp unit and the elastic member is stronger than a rotation torque that is generated by the turn table to inhibit slipping of the optical disc from the turn table. | 01-16-2014 |
| 720708000 | Using balls | 1 |
| 20140215501 | DISC CLAMPING STRUCTURE OF OPTICAL DISC DRIVE - A disc clamping structure is provided. A fixing base is disposed on a turntable. A plurality of ball seats are disposed around a periphery of the fixing base, and each of the ball seats has an aperture. The balls are received in the ball seats. The elastic members are disposed within the fixing base. The balls are upwardly moved, and the height of the center point of the ball is adjusted according to the thickness of the disc when the disc is clamped on the turntable. A portion of the ball is projected from the aperture of the ball seat before clamping the disc. | 07-31-2014 |
| 720709000 | Having groove or channel | 1 |
| 20080229349 | Recordable optical data storage disc - A recordable data storage disc comprises a substrate having a spirally or concentrically shaped groove pattern. A groove depth of the groove pattern is greater than 90 nanometers, and a track pitch provided by the groove pattern is less than 500 nanometers. The data storage disc further comprises a write-once recording layer formed on the groove pattern, and a reflector layer formed on the recording layer opposite the substrate. The groove depth of greater than 90 nanometers allows a thicker coating of dye to be used for the recording layer compared to other recordable data storage discs with a groove pattern with a groove depth of 90 nanometers or less. The thicker coating of dye allows a lower write power, better modulation when reading a data signal from the disc. The groove depth of greater than 90 nanometers may also allow for more precise push-pull tracking. | 09-18-2008 |
| 720710000 | Magnetic | 7 |
| 20100043019 | CHUCKING PLATE FOR DISK CARTRIDGE, METHOD FOR MANUFACTURING THE CHUCKING PLATE, AND DISK CARTRIDGE - Costs are reduced by rationalizing the process while maintaining the sliding performance with respect to a optical disk and a disk table and the reliability is improved. A plate | 02-18-2010 |
| 20100299686 | Clamping Device of Spindle Motor - Provided is a clamping device of a spindle motor including a body, a stopper, a weight, and an elastic member. The stopper is coupled to the body. The weight is coupled to the stopper. The elastic member elastically supports the stopper. | 11-25-2010 |
| 20110035764 | CHUCKING DEVICE, BRUSHLESS MOTOR, DISK DRIVE APPARATUS AND METHOD FOR MANUFACTURING THE CHUCKING DEVICE - A chucking device includes a turntable fixed to a shaft having a central axis and a cone arranged axially above the turntable. An annular yoke is arranged above a sliding portion of the cone and fixed to the shaft, and a clamp magnet is fixed to the yoke through an adhesive agent. The yoke includes an upper surface having an annular recess defined in a concentric relationship with the central axis, the adhesive agent being applied on a region of the upper surface existing radially inwards of the recess. The recess includes a radial outer wall parallel to the central axis and a radial inner wall inclined radially inwards and axially upwards. The angle between the radial outer wall and a lower surface of the clamp magnet is greater than the angle between the radial inner wall and the lower surface of the clamp magnet. | 02-10-2011 |
| 20110078712 | SPINDLE MOTOR AND INFORMATION STORAGE DEVICE INCLUDING THE SAME - A spindle motor for an optical disc drive complements a loss of a function of automatically correcting a center of the spindle motor that may occur due to an excessive centrifugal force of an optical disc that is generated as the rotation speed of the spindle motor is increased. A conic outer circumferential surface of a slide cone closely contacts an inner circumferential surface of the optical disc so that a center of the optical disc is the same as a rotational center of the spindle motor The slide cone is cup-shaped so that the slide cone vertically slides in the direction of the rotation shaft. A cone yoke exerts a force to push the slide cone upwards in an axial direction so that an attractive force is used between the yoke and a magnetic cone yoke or an attractive force between the magnetic cone yoke and a clamp magnet. | 03-31-2011 |
| 20110145845 | DISK DEVICE - A disk device, wherein a disk clamp unit is further thinned. The disk device is provided with a spindle motor ( | 06-16-2011 |
| 20120036521 | OPTICAL DISC CLAMPING DEVICE - An optical disc clamping device is provided. A driving bar is moved away from a center hole to synchronously drive a first linking bar and a second linking bar. A first pivotal rod and a second pivotal rod are respectively driven by the first slider and the second slider to move towards the center hole to drive a carrier which carries a chucking disk disposed thereon to contact a spindle motor. A suppresser is fixed at the rim of the center hole to press on the chucking disk to clamp the disc stably. | 02-09-2012 |
| 20130254785 | DISC CLAMPING MECHANISM - A cylindrical member is fixed to an upper portion of a rotary shaft and a clamper presses an optical disc in contact with the top of a turntable. The structure is such that a first bottom face of the cylindrical member that faces a clamping magnet in the axial direction is positioned below an opposite face of the clamper that faces the clamping magnet in the axial direction. | 09-26-2013 |
| 720711000 | Clamp for different types of disk | 2 |
| 20090077576 | Apparatus For Clamping Large And Small Disks - An apparatus for clamping both large and small disks is provided, including a disk tray inside a base, an upper case and two clamping mechanisms above the disk tray and the base. Each clamping mechanism includes a slider and a gripper structure. The gripper structure further includes a first gripper, a second gripper, and a resilient element located between the first and the second grippers. The second gripper includes a first belt-ring and a second belt-ring. When the disk is loaded, under the force of the resilient element, the first belt-ring and the second belt-ring hold the disk onto the disk tray firmly. When the first gripper moves to a specific position of the groove on the upper case, the first gripper causes the second gripper to rotate so that the resilient element stops to exert the force. Hence, the first belt-ring and the second belt-ring rotate upwards so as to complete the loading process. On the other hand, to reject a disk, the resilient element re-exerts force on the first gripper to cause the first belt-ring and the second belt-ring rotate downwards to hold the disk until the disk is completely rejected to complete the rejecting process. | 03-19-2009 |
| 20140068644 | CLAMPING DEVICE OF SPINDLE MOTOR - The clamping device of spindle motor is disclosed, wherein a case portion contacted by the other distal end of the arms is inclined due to depression of a distal end of the arms by the disk, such that the arms linearly moves into the case to allow the other distal end to further rotate upwards, whereby the disk can be easily inserted into the case regardless of size of the inner diameter of the disk. | 03-06-2014 |
| 720712000 | Particular shape | 3 |
| 20100083296 | TURN TABLE FOR SPINDLE MOTOR - A turn table of a spindle motor in which a small-diameter disk can be freely attached and detached is disclosed, wherein the disk insertion unit includes an inclination portion guiding the inserted disk, and a vertical portion extensively formed from the inclination portion to the disk accommodation unit to allow an inner periphery of the disk to be brought into contact, and wherein the claw includes an inclination claw portion guiding the inserted disk and a vertical claw portion bent from the inclination claw portion to chuck the disk, and wherein an outer diameter of the vertical portion at the disk insertion unit is 14.94˜l4.96 mm and an outer diameter of the vertical claw portion at the claw is 15.17˜15.23 mm. | 04-01-2010 |
| 20110258652 | Motor device - A motor device includes: a rotor case rotated along with a shaft; a chuck housing mounted on a hub of the rotor case; a chuck member mounted on the chuck housing such that the chuck member is protruded from the interior to an outer side, to fix a disc; and a concave portion formed as a recess on the rotor case to form a gap with the chuck support in contact with the chuck member to thereby prevent a frictional contact between the rotor case and the chuck member. | 10-20-2011 |
| 20130111508 | DISC CHUCKING STRUCTURE AND OPTICAL DISC DRIVE INCLUDING THE SAME | 05-02-2013 |
| 720713000 | Pivoting mechanism | 1 |
| 20110179433 | OPTICAL DISC DRIVE - Disclosed is an optical disc drive. The optical disc drive may include a clamp unit for chucking an optical disc; at least one lifting projection protruding from the clamp unit; and a moving force transfer unit for transferring a moving force, of moving the clamp unit in an axial direction of the clamp unit, to the clamp unit through the lifting projection, wherein the moving force transfer unit includes a guide for moving the lifting projection in the axial direction by a movement in a direction perpendicular to the axial direction, and a protective part provided at least one of both ends of the guide and protecting the lifting projection. Accordingly, when an optical disc rotates at high speed, noise generation at a joined portion between the guide of the moving force transfer unit and the lifting projection can be suppressed. | 07-21-2011 |
| 720714000 | Linear movement | 1 |
| 20170236545 | HIGH PERFORMANCE ROBOTIC OPTICAL STORAGE SYSTEM | 08-17-2017 |
| 720715000 | Optical storage disc contact structure on turntable surface | 4 |
| 20110202941 | Brushless DC motor Driving System - A brushless DC motor driving system, in which the duty cycle of the PWM control signals for the duty cycle generator is determined by a speed control circuit, a feedback comparator, and the set and reset signals of a S-R Flip-Flop, wherein the PWM control signals pass through the Hall synthesis circuit, the logic control circuit to drive the coil by the drive current generated, and the duty cycle of the PWM control signals is further adjusted by means of the feedback sensing voltage obtained from the driving current and sensing resistance and fed back to the feedback comparator, the stability and linear stability of the input voltage and the driving current being achieved. | 08-18-2011 |
| 20110283302 | Disk chucking device and motor device having the same - Disclosed is a disk chucking device. A disk chucking device according to an aspect of the invention may include: a chuck housing mounted on one surface of a rotor case being rotatable and having a receiving portion with an outside opening to be connected to a receiving space provided therein; and a chuck chip comprising an elastic plate being elastically transformed when a disc being mounted on the rotor case is inserted and securing an inter circumferential surface of the disc. | 11-17-2011 |
| 720716000 | Having dampening | 1 |
| 20110072447 | DISK DRIVE MOTOR - Disclosed herein is a disk drive motor which can prevent a disk from wobbling despite having a simple structure. The disk drive motor includes a turntable which is rotated by a drive unit and supports a disk thereon, and a disk support which is attached onto the turntable to support the disk thereon. Grooves are formed in the disk support. Each groove is inclined based on the radial direction of the turntable in the direction opposite to the direction in which the disk rotates. In the present invention, when a disk rotates, air which has been in a space between the turntable and the disk is discharged outside through the grooves, so that adsorption force is generated by a difference in pressure between the air and the space between the turntable and the disk. Therefore, the disk can be prevented from wobbling when rotating. | 03-24-2011 |
| 720717000 | Reducing eccentricity | 1 |
| 20110167439 | SLIP PREVENTION MEMBER FOR TURNTABLES - Disclosed herein is a slip prevention member for a turntable. A friction layer prevents a slip of a disk placed on an upper surface thereof. A hardness reinforcing layer is provided under the lower surface of the friction layer. An adhesive layer is provided under the lower surface of the hardness reinforcing layer. A releasable sheet is attached to the lower surface of the adhesive layer. The slip prevention member reduces use of environmentally toxic material and uses the hardness reinforcing layer, thus preventing occurrence of vibrations and noise which may be induced when the hardness of the slip prevention member is relatively low. | 07-07-2011 |
