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| Number | Title | Issue Date |
| 7315499 | Optical disk apparatus, tilt compensation method, program, and information recording medium An optical disk apparatus includes a tilt detection unit detecting the tilt value of an optical disk medium with respect to an optical system. A tilt compensation unit compensates for the tilt of the optical disk medium by adjusting a relative angle between the opti... | 01/01/2008 |
| 7310806 | Support mechanism and feeding unit including same A supporting mechanism for movably supporting a member to be supported along a supporting shaft, comprises supporting members and a pressing device. The supporting members are provided on the member to be supported. Each of the supporting members comes into contact ... | 12/18/2007 |
| 7237246 | Position adjustment and damper mechanism for an optical disk drive A position adjustment method includes forming a plurality of bores on a tray, forming a plurality of through holes in a mounting plate corresponding to the bores on the tray, installing a plurality of screws into the through holes, and threading a plurality of nuts ... | 06/26/2007 |
| 7216354 | Guidance of an optical scanning device An optical scanning device for reading data stored on a rotating recording medium having a scanning head; at least one guide device for guiding the scanning head along a predefined track; at least one bearing device connected to the scanning head for supporting the ... | 05/08/2007 |
| 6948178 | Disc drive A disk device including a movable portion which supports pivotally and enably to swing a feed screw axis, a thread motor to drive a small gear and the like which engage with a gear interlocked in an end portion of the feed screw axis thereby to rotate the feed screw... | 09/20/2005 |
| 6639891 | Data recording/reproduction apparatus having tilt angle adjustment mechanism A data recording/reproduction apparatus is provided, which apparatus includes a spindle motor which is held by a base body and rotates an optical disk, an optical pickup which projects a laser beam into a spot on the optical disk for data recording/reprod... | 10/28/2003 |
| 6577585 | Skew adjustment for disk drive apparatus The hard disk apparatus has first and second skew adjust members 21 and 22 for adjusting inclinations or an inclination of a main guide shaft 16 and/or a sub-guide shaft 17. The first and second skew adjust members comprise: bearing parts 41 or a bearing ... | 06/10/2003 |
| 5517483 | Gear assembly for transporting a rotation force of a motor shaft to a lead screw The present invention relates to a gear assembly which comprises an eccentric member having a first cylindrical portion with a first center axis in accordance with a center axis of said eccentric member for receiving said shaft on a front side thereof fro... | 05/14/1996 |
| 5504641 | Flexural pivot mechanism for rotary actuators in disk drives A flexural bearing for an actuator assembly of a magnetic-disk drive includes a first and a second resilient member (10 and 12) and a third resilient member (14). The resilient members are attached to a base plate (40) of the disk drive and pivotally supp... | 04/02/1996 |
| 5479305 | Technical device particularly an electromechanical deck for moving information carriers having a movable plastic element An technical device, particularly an electromechanical deck for moving information carriers, has one plastics part formed on a deck plate, which part has been moulded onto the deck plate by outsert-moulding and has at least one bridge element which traver... | 12/26/1995 |
| 5357500 | Miniaturized disc player A pickup feeding apparatus is comprised of a first rack provided on a pickup supporting member supported so as to become movable along a guide shaft, a second rack provided slidably relative to the first rack, a drive force transmitting gear for transmitt... | 10/18/1994 |
| 5146450 | Method and apparatus for bearing to comb attachment Disclosed is a method and apparatus for attaching a bearing cartridge to an actuator arm assembly in a disk drive. The bearing cartridge includes the actuator shaft, an outer sleeve and a set of bearings. The actuator arm assembly has a bore therein which... | 09/08/1992 |
| 5101398 | Device for magnetically guiding movement of a moving body such as an optical head An optical information recording-reproducing apparatus includes an optical head unit, a holding device, a moving device and a guide shaft. The optical head unit effects recording and/or reproduction of information on an optical information recording mediu... | 03/31/1992 |
| 5046062 | Movable body driving apparatus An optical head driving apparatus is constructed to move an optical head along the radius of an information storage medium which is rotating, to face the optical head to a predetermined position of the information storage medium where the optical head car... | 09/03/1991 |
| 4825432 | Frictionless moving device for an optical recording system in a high density spiral track-forming apparatus capable of resisting disturbing forces A high density spiral track forming apparatus according to the present invention a linear motion mechanism for moving an optical recording system in a radial direction of a disk-shaped substrate, and a length measurement machine for detecting the distance... | 04/25/1989 |
| 4704712 | Low-friction slide apparatus for optical disc translation stage A low-friction slide apparatus for use with the translation stage of an optical disc recording/playback system is disclosed. The apparatus includes a rail which is fixed in position. The rail includes porous strips affixed to two orthogonal sides along it... | 11/03/1987 |
| 4679185 | Pivotal-arm device for a disc scanning unit A pivotal-arm device (15) for a disc scanning unit (13) for recording and/or reading information comprises a deck plate (3A), a pivotal arm (25) carrying the scanning unit, and pivotal-arm bearing means. The pivotal arm bearing means comprise two bearings... | 07/07/1987 |
| 4628500 | Air bearing straight line tracking phonograph tonearm An air bearing straight line tracking phonograph tonearm combines the features of a readily removable decoupled counterweight arm which bears horizontally and vertically adjustable counterweights; a readily removable tonearm tube with tapered wall thickne... | 12/09/1986 |
| 4587646 | Tone arm assembly A tone arm assembly of the type employed in phonograph assemblies and the like, wherein the tone arm assembly is supported on a unipivot bearing assembly having a pivot point coinciding with an imaginary horizontal line extending through a center of gravi... | 05/06/1986 |
| 4570253 | Tone arm A tone arm for a phonograph pickup having a bifilar flexible ligament suspension for vertical and lateral displacement. The suspension takes the place of the more usual pivots, and employs a pair of thin flexible ligaments or fibers in a skewed convergent... | 02/11/1986 |
| 4539672 | Low friction phonograph tone arm traverse The tone arm (13) of a record player is carried by a carriage (14) which is movable along a motor-driven rotating spindle (6) extending tangentially with respect to the axis of the turntable (10). For supporting it on the spindle the carriage has two bear... | 09/03/1985 |
| 4497053 | Accurately tracking phonograph arm A phonograph tone arm cartridge rotating system that keeps the cartridge perpendicular to the record groove radius by pivoting it with a belt and pulley linkage that does not change length or tension during movement of the tone arm.... | 01/29/1985 |
| 4449216 | Pickup arm device A pickup arm device for disc phonograph player comprising a pickup arm and a pivot holder integrally combined with the pickup arm and having an opening substantially at the center thereof to receive a pivot bearing and a pair of holes formed at opposite s... | 05/15/1984 |
| 4434483 | Tone arm A tone arm comprising a lever with a pickup cartridge on its end and a tracking-force setup assembly, a movable base connected to the lever, and a fixed base, the two bases facing each other. Installed between said bases are a vertical pivot attached to o... | 02/28/1984 |
| 4403316 | Swing-arm device for an optical scanning unit A swing-arm device (5) for an optical disk player comprises a swing arm (16), which near one end (17) carries an optical scanning unit (6) and which is electromagnetically pivoted by means of coils (27, 28) and a permanent magnetic stator (29, 30, 49-52, ... | 09/06/1983 |
| 4342109 | Carriage alignment apparatus for video disc player In a video disc player, a support roller is mounted to one end of a pickup carriage by means of an eccentric stud. The height of the roller in respect of the carriage is adjusted by changing the angular position of the eccentric stud. A support bracket is... | 07/27/1982 |
| 4330884 | Pickup arm device A pickup arm device comprising a rotary bearing having a mounting bed rotatable about both the vertical and horizontal axes, and an arm assembly consisting of an arm, a cartridge mounting head shell at one end thereof, a rider weight at the other end ther... | 05/18/1982 |
| 4325131 | Tone arm bearing system In a bearing system for a tone arm for use with a phonograph record player or the like where the bearing system includes a bracket for supporting the tone arm, a rotatable, tubular shaft connected to the bracket for permitting horizontal rotation of the t... | 04/13/1982 |
| 4302834 | Phonograph pickup arm A phonograph pickup arm for use in disc records arranged to compensate for error in the tracking path. By use of adjacent curved surfaces in mounting and support members the point of rotational access of the pickup arm shifts as the stylus associated with... | 11/24/1981 |
| 4257615 | Tone arm This invention concerns a tone arm of the type in which a separate element is supporting the extending parts of the arm. This separate element is comprising the suspension point around which the arm is moving, and it differs from the type of those element... | 03/24/1981 |
| 4239239 | Phonograph tone arm system An improved phonograph tone arm device is disclosed in which the pickup, including the stylus, is supported on a low friction air-bearing support which provides for essentially frictionless movement of the tone arm and pickup both in horizontal linear tra... | 12/16/1980 |
| 4205854 | Record players A record player having a tone-arm and a gimbal mounting for the tone arm, the gimbal mounting having bearings and at least one of the bearings having an elongate member through it for effecting limited actuation of the tone arm.... | 06/03/1980 |
| 4203606 | Pickup arm device One end of an arm main body is formed integral with a head shell for mounting a cartridge while the other end thereof supports a balance weight. A mounting portion is formed integral with the arm main body between the ends thereof and close to the other e... | 05/20/1980 |
| 4170361 | Bearing arrangement for a record player tonearm The disclosed arrangement is for a short pickup arm used with a tangential scanning system. The arm is supported on a single jewel thrust bearing and held against sideways tilting by a pair of attracting magnets, one mounted on the arm above the bearing a... | 10/09/1979 |
| 4170362 | Bearing arrangement for a record player tonearm The disclosed arrangement is of the type for a short tonearm which is guided over the record so that the tonearm remains tangential to the grooves of the record. The tonearm is balanced mechanically on a single point bearing, with the phono cartridge to o... | 10/09/1979 |
| 4162076 | Tone arm A tone arm for use in a phonograph record player having a base, the tone arm comprising tone arm shaft having pick up means disposed at one end thereof and a balance weight disposed at the other end thereof, the tone arm shaft having a longitudinal axis e... | 07/24/1979 |
| 4154445 | Viscous damping arrangement for record player tone arms This invention relates to a viscous damping arrangement for record player tone-arms in which the fluid container is part of the arm and is located at the arm's center of rotation. A stationary sphere is immersed in the fluid and the container rotates arou... | 05/15/1979 |
| 4127274 | Tone arm system for record turntable For use with a turntable structure for rotating a sound-recorded disc, an elongated tone arm is mounted pivotally intermediate its ends by a gimbal structure in which concentric rings are pivoted at right angles to each other by means of resilient torsion... | 11/28/1978 |
| 4087095 | Pneumatic record player A record player system wherein a hollow turntable platter is supported with an internal inserted supporting body and incorporated with a driving means mounted on said supporting body. During operation, said turntable platter is slightly floated on said su... | 05/02/1978 |
| 4082291 | Pick-up arm assemblies for record players A pick-up arm assembly for a record player comprises a pick-up arm mounting, a counterbalance device which includes a counterweight and which is mounted to the pick-up arm mounting so as to be pivotable about vertical and horizontal axes, and a pick-up ar... | 04/04/1978 |
