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| Number | Title | Issue Date |
| 7196512 | Magnetic head tester The magnetic head tester of the present invention drives a medium for rotation to float a slider from the medium so as to test a magnetic head for its characteristics, and the tester includes a holder removably holding the slider opposed to the surface of the medium... | 03/27/2007 |
| 6762912 | Head cleaner for a disk drive into which a disk media cartridge is inserted A disk drive has a rigid head cleaner with a textured surface. The texture lines are primarily orthogonal to the direction of movement of the read/write heads as they move across the head cleaner. The head cleaner may be coated with a diamond-like carbon protective ... | 07/13/2004 |
| 6747844 | Disk drive If a floppy disk (200) is inserted into a disk drive unit, a link member (52) rotates due to the movement of the floppy disk (200), and a slide piece (61) recedes from under a projecting piece (131) of an upper head support arm ( | 06/08/2004 |
| 6628476 | Disk drive which prevents misthreading A threader prevents misthreading of a flexible magnetic media when it is inserted into a disk drive. The threader is situated in the disk drive such that it has a height greater than a height of a lower half of a load ramp, upon which the disk driver's ro... | 09/30/2003 |
| 6563768 | Magneto-optical memory device A magneto-optical memory device includes a first unit projecting a light beam onto a desired position on a recording medium, and a second unit applying a magnetic field to a position onto which the light beam is projected. The second unit applies, to the ... | 05/13/2003 |
| 6542338 | Disk apparatus A disk apparatus has a mechanism for adjusting a head load pressure exerted on a lower surface of a floppy disk by a lower magnetic head. The magnetic head load pressure adjustment mechanism is fixed to a carriage body, and includes a lower suspension and... | 04/01/2003 |
| 6477015 | Magnetic disk drive A movable member 35 is moved back or forth by a motor 33. A carriage opening/closing member 41 which vertically guides a pair of projections 40 opposingly formed on opposed faces is disposed between upper and lower carriages 36 and 37 which are elasticall... | 11/05/2002 |
| 6317295 | Adjustment apparatus for magnetic head device The supporting member is provided with the leaf spring arms at its upper surface and lower surface, and each of the extremity ends of the arms is provided with each of the magnetic heads. In addition, the lower surface of the arm is provided with the adju... | 11/13/2001 |
| 6243237 | Disk drive apparatus A disk drive wherein a head raising and lowering arm is rotated around a pivot shaft of a slide plate by a cam action due to a cam groove of the head raising and lowering arm and a fixed guide shaft when the head raising and lowering arm is inserted in a ... | 06/05/2001 |
| 6091586 | Disk driving apparatus with upper and lower head arms and a simple head detaching means To prevent magnetic heads from being pasted on a floppy disk even when the floppy disk is left for a long time period while being chucked to a disk table, when the magnetic heads are moved to an outermost peripheral position or an innermost peripheral pos... | 07/18/2000 |
| 5859747 | Cover structure for magnetic recording and reproducing device A magnetic recording/reproducing device including a top cover having a plurality of leg portions 1e with cutouts that project from each side face of the top cover such that the location of a leg portion at one side face does not correspond to the location... | 01/12/1999 |
| 5828520 | Magnetic head-mounted to a tip portion of a carriage via adhesive in an adhesive filling groove The present invention relates to a head transferring mechanism of a magnetic recording/reproducing apparatus which transfers a magnetic head. In the head transferring mechanism 17 in which a hold case 19 is hinge-connected to a rear end portion of a carri... | 10/27/1998 |
| 5654852 | Stopper mechanism in a floppy disc apparatus In a transportation or in an accident, the carriage of a floppy disc apparatus has a chance to collide with the stopper mechanism of the apparatus. A shock absorbing mechanism is provided in the stopper mechanism to avoid damage from the shock.... | 08/05/1997 |
| 5438465 | Recording/reproducing apparatus for a disc A recording/reproducing apparatus for a disc accommodates a magnetic disc in a disc cartridge. The disc may be loaded on a disc table of a disc rotating-driving device by the operation of introducing the disc cartridge into a cartridge holder which is sup... | 08/01/1995 |
| 5396385 | Floppy disk drive The present invention aims at reducing the thickness of a floppy disk drive by minimizing a vertical movement of a floppy disk-retaining disk holder and reducing the height of a chassis. The disk holder is provided on both side surfaces of its rear end po... | 03/07/1995 |
| 5359590 | Disc drive device having negative pressure pad A disc drive device which comprises a negative-pressure pad for generating a negative pressure between the negative-pressure pad and a disc-shaped recording medium by the rotation of the disc-shaped recording medium and a displacement member for bringing ... | 10/25/1994 |
| 5303102 | Disk drive apparatus having head guard A disk drive apparatus for recording and reproducing desired information on and from floppy disks, is simply and thinly structured and has an excellent shock resistance. The disk unit includes a support for carrying a pair of heads for pinching a magnetic... | 04/12/1994 |
| 5291361 | Disk drive with low elevated head unloading mechanism A disk drive for recording data to or reproducing data from a disk includes a head for writing the data into or reading the data out of the disk by sliding on the disk or gliding over the disk. An arm member holds the head which is supported by an elastic... | 03/01/1994 |
| 5222005 | Loading unit for case which houses recording disk A loading unit loads a case housing a disk recording medium at a loading position which is set between an upper head and a lower head. The loading unit includes: an insertion path for guiding the case inserted from an insertion opening toward a position b... | 06/22/1993 |
| 5144509 | Double-side magnetic recording-reproducing apparatus with fixed position magnetic heads A double-side magnetic recording-reproducing apparatus, wherein a top magnetic head and a bottom magnetic head are respectively provided upwardly and downwardly of a magnetic recording medium to be rotated by a spindle motor, and magnetic recording on the... | 09/01/1992 |
| 5060101 | Storage device having a lock system for the access mechanism and method for locking A disk drive device comprises a base member, a disk drive motor mounted on the base member to drive date storage medium, a carriage means mounting at least a head for reading data stored on the medium and movable steplessly between first and second positi... | 10/22/1991 |
| 5051854 | Magnetic head device Disclosed herein is an improvement in a magnetic head device including a carriage, a lower head mounted to the carriage, an upper head arranged in opposed relation with the lower head, a rotating arm having the upper head, and a biasing means for pulling ... | 09/24/1991 |
| 4999725 | Read/write head carrying mechanism for floppy disk drive A read/write head carrying mechanism for a floppy disk drive. Upper and lower heads are brought into close contact with both sides of a floppy disk in a loaded state, and reciprocate in the radial direction of the floppy disk so as to be positioned at a d... | 03/12/1991 |
| 4996615 | Head assembly A head assembly suitable for use in a magnetic disk driving apparatus includes an arm bearing a lower head and supported swingingly by a carriage. The arm swings about its own center of gravity, and its base plate portion becomes substantially parallel wi... | 02/26/1991 |
| 4980787 | Mass-balanced magnetic head assembly for a floppy disk drive A head assembly suitable for use in a magnetic disk driving apparatus includes an arm bearing a lower head and supported swingingly by a carriage. The arm swings about its own center of gravity, and its base plate portion becomes substantially parallel wi... | 12/25/1990 |
| 4972281 | Magnetic head supporting device for flexible recording medium A magnetic head supporting device includes a carriage and a head arm mounted on the carriage to be movable between a loaded position and an unloaded position. Magnetic heads are mounted on the carriage and head arm by means of gimbal springs, and face eac... | 11/20/1990 |
| 4928196 | Magnetic recording device using circumferentially offset heads with double sided media A pair of oppositely-disposed stabilizer devices support opposed magnetic heads for interfacing with opposite sides of a rotating magnetic disk. Each stabilizer device includes a block with an opening through which the magnetic head protrudes for engageme... | 05/22/1990 |
| 4920438 | Magnetic head unit and method of manufacturing the same A magnetic head unit comprising a magnetic head supporting member provided with a magnetic head receiving hole formed in an extremity thereof, and a reading/writing magnetic head placed within the magnetic head receiving hole at a correct position with re... | 04/24/1990 |
| 4907112 | Recording/reproducing head providing evenly distributed contact pressure with magnetic medium A magnetic recording/reproducing apparatus for recording information on a disc-like recording medium and/or for reproducing the recorded information therefrom. The magnetic recording/reproducing apparatus has a pair of magnetic head devices each composed ... | 03/06/1990 |
| 4887176 | Double-sided magnetic recording device supporting two transducers in fixed relation A double-sided recording device supports two transducers in fixed relation on opposite sides of a storage medium so that a fixed separation is maintained between the transducers. By making the separation substantially greater than the transducing cross-se... | 12/12/1989 |
| 4864445 | Head loading mechanism for recording and/or reproducing apparatus A recording and/or reproducing apparatus includes a recording and/or reproducing head; a head control device for moving the head along a recording surface of a medium and for shifting the head into condition away from the surface of the medium; a drive so... | 09/05/1989 |
| 4835642 | Magnetic head assembly for double-sided disk drive apparatus A magnetic head assembly including a carriage which carries thereon a first magnetic head for information writing and reading to and from one side of a disc-like magnetic recording medium, and a hold case which carries thereon a second magnetic head for i... | 05/30/1989 |
| 4831479 | Pivot support structure for magnetic head assembly A magnetic head assembly comprises a carriage on which a first magnetic head is mounted for performing read/write with respect to one face of a disk, a second magnetic head also mounted on the carriage opposite to the first magnetic head for performing re... | 05/16/1989 |
| 4819108 | Apparatus for positioning magnetic head A magnetic head positioning apparatus including a chassis, a driving device provided on the chassis, a guide member provided on the chassis, a carrier movably provided on the guide member, a first metallic head support mounted on the carrier and adapted t... | 04/04/1989 |
| 4811143 | Head supporting mechanism for maintaining close operative relationship between magnetic heads and a flexible disk Leaf spring is fixed at one end thereto to a carriage, and extended at a predetermined angle to the carriage. A part of the leaf spring has rigidity. A gimbal spring, which free from the carriage, is mounted on the rigid portion. Head is fixed to the gimb... | 03/07/1989 |
| 4807068 | Eject mechanism of disk recording/reproducing apparatus having mechanism for preventing accidental head lowering A recording/reproducing apparatus for a disc, having an ejector with which an insertion-side fore end of the disc comes into abutment and which is urged toward a disc insertion opening, and a lock mechanism for locking the ejector when the disc has been i... | 02/21/1989 |
| 4777551 | Magnetic head supporting mechanism for flexible double-sided magnetic disks A mechanism for supporting magnetic heads has gimbal plates which support both magnetic heads in such a manner than the magnetic heads oppose to each other across a flexible double-sided magnetic disk. The magnetic heads are resiliently pressed onto the m... | 10/11/1988 |
| 4748522 | Magnetic head assembly having vibration controlling member Disclosed herein a magnetic head assembly including a carriage to which a magnetic head is mounted, a leaf hinge spring fixed to said carriage at an end portion thereof and an arm rotatably connected through said leaf hinge spring to said carriage. The im... | 05/31/1988 |
| 4740854 | Flexure seat for a transducer head of a magnetic disk apparatus For resiliently supporting a transducer head on a carrier member, such as a head carriage or a load arm pivoted thereon, that is movable radially of a flexible magnectic disk, a flexure seat is provided which is fabricated from resilient sheet metal mater... | 04/26/1988 |
| 4739429 | Magnetic head and support therefore A magnetic head has a slider and a recording and reproducing gap which slide-contact a magnetic disk and is pivotally supported. The recording and reproducing gap of the magnetic head is disposed so as to be offset toward the forward end of the slider in ... | 04/19/1988 |
