Matches 601 - 650 out of 760 < 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >
Match Document Document Title
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...
5140478 Magnetic disk drive comprising magnetic disk cartridge and driving device which drives the disk cartridge and prevents external vibration from being transmitted to the disk cartridge  
An exchangeable hard disk drive including a disk cartridge functioning as a hard disk and a driving device which drives the disk cartridge and prevents external vibration from being transmitted to...
5140489 Disk cartridge adapted for use with different disk drives  
A protective cartridge for a data storage disk (e.g. optical, magneto-optical and magnetic disks) has two disk-access apertures which enable the disk to be used with two different types of disk...
5140479 Static eliminator for disc drive spindle  
In a magnetic disc drive, an apparatus for eliminating electrical charge. The apparatus includes a preloaded coil compression spring and a contact button nested in a bored hole in the spindle...
5136571 Disk cartridge loading apparatus  
A disk cartridge loading apparatus for ejecting a disk cartridge by operating an ejecting knob from a loading state of the disk cartridge has a head moving device for supporting and moving a...
5122918 Dust free protective device for disk drive  
An air filtrating disk drive slot dust protector comprises an air filtrating element attached to the front portion of a disk shaped supporting body, so that insertion of the protector into the disk...
5119252 Inhibiting ejection of disc memory for selected time after power off  
An ejection inhibiting mechanism in a disk memory device of a meidum exchanging type has a latching solenoid for inhibiting the operation of an ejecting mechanism for ejecting a memory medium; an...
5113297 Magnetic disk drive having a mechanism for preventing a disk cartridge from being inserted therein with wrong orientation and for fixing the disk cartridge inserted therein with correct orientation  
A magnetic disk drive has a mechanism for loading and holding a disk cartridge inserted with a correct orientation at a predetermined position, and for preventing a disk from being inserted with a...
5111350 Shutter opening apparatus for an information storage disk drive system  
In an information disk drive system, a pivoted shutter opening lever is positioned in a cartridge receiving guide in the same plane as the disk in the cartridge. The lever is mounted on a movable...
5109310 Disk drive device with unified actuator assembly  
A magnetic disk drive device for reading from or writing to a magnetic disk having an actuator assembly composed of a yoke plate, an actuator housing magnetic heads, a stopper for restricting the...
5095396 Unitary E-block assembly for use in a disk drive  
An E-block assembly is used in a disk drive which reads and writes information to a plurality of magnetic disks. The E-block assembly includes a plurality of sliders, each slider including a...
5091898 Playback/recording apparatus having a device for positively preventing entire cartridge from springing out of slot  
A playback/recording apparatus for a cartridge-contained disk includes a casing having a slot, a cartridge holder having an opening aligned with the slot, a conveyance mechanism for moving the...
5081551 Recording and reproducing apparatus  
A recording and reproducing apparatus is provided with a frame formed of plastic material. The frame can be formed as a composite, including glass fibers, polymers, carbon fibers and combinations...
5079655 Vibration absorbing structure for a disc apparatus  
A disc apparatus includes rotatable discs each having a recording disc surface or surfaces, a head for recording and reproducing information to or from the disc, and an actuator for moving the head...
5072320 Magnetic recording and reproducing apparatus having improved durability  
In a magnetic recording and reproducing apparatus of a type wherein a magnetic disk having a magnetic recording layer formed on a rigid substrate is rotated at a high speed and magnetic recording...
5062016 Set of structural brackets that allow electronic/electrical assemblies to be mounted within a computer enclosure  
A method that allows a disk-drive/controller card mounting bracket (12) and a slotted hang bracket (14) to increase the overall power and efficiency of a computer. The bracket (12) is used to mount...
5060096 Magnetic disc clamping/seating unit  
A magnetic disc unit into and from which a disc case housing a magnetic disc is loaded and ejected includes a chassis, a magnetic head, a slide member being capable of sliding between a first...
5060106 Disk cartridge including door opening mechanism and improved hub assembly  
A disk cartridge having a housing in which a disk is rotatably mounted via a hub assembly. The housing includes two cover plates, each of which has a door aperture that is selectively covered by a...
5053905 Hardened center pin contract area on magnetic disk cartridge  
A magnetic disk cartridge is of the type in which a magnetic disk is rotatably disposed within a jacket. A hardened layer of an ultraviolet ray hardening resin is formed on an inner surface of the...
5045960 Self-aligning guide and track for removable disk drive module  
A slide guide for a removable computer drive module that permits the module to float as a self aligning connector engages. A computer housing has tracks that guide the module as it is inserted and...
5036417 Magnetic head feeding device with a rack and pinion  
A magnetic head feeding device suitable for mass production while providing a higher tolerance to vibration and shock is provided. A carriage is rotatably and slideably mounted on a guide shaft. A...
5034837 Magnetic disk drive incorporating a magnetic actuator lock and a very small form factor  
The invention provides a magneticf actuator lock for the head positioning actuator of a disk drive. The magnetic actuator lock comprises a magnet, and first and second stop means, one of which is...
5029027 Thermally predictable disk drive mechanism  
A disk drive having a base and a cover, enclosing the memory disks and the magnetic head actuator. The spindle journaling the memory disks and the support for the actuator are secured to the base...
5027242 Magnetic disk apparatus having at least six magnetic disks  
A magnetic disk apparatus has a base member and a cover mounted on the base member to form an enclosure having at least six magnetic disks rotatably supported therein. First and second transducers...
5025335 Architecture for 21/2 inch diameter single disk drive  
A two and one half inch form factor disk drive has a base and cover formed of molded plastic and engaged with each other by snap-fit connectors. The cover is molded from a plastic which is more...
5021905 Disk drive enclosure for minimizing stresses and a vibration damping seal therefor  
A disk drive in which the base and the cover are interconnected in spaced positions to provide a marginal, peripheral gap between confronting or adjacent faces or edges thereof. The gap is bridged,...
5016128 Superconducting information storage device  
An information storage device includes a magnetic recording medium, preferably supported upon a rotating disk, an electromagnetic writing device that writes magnetic patterns into the recording...
5014258 Disc player having means for preventing disc magazine from being inserted upsidedown  
A multi-disc player having means for preventing a disc magazine from being inserted upsidedown. The disc player includes a magazine holder, means for taking a disc tray out of a magazine...
5010426 Installation mechanism for removable computer drive module  
An installation mechanism for a removable computer drive module with a handle operated automatically engaging dual rack and pinion device. The pinions are carried by the handle which is pivotally...
5007040 Magnetic recording and/or reproducing apparatus having a retaining mechanism for a disc-shaped magnetic record bearing medium  
The disclosed magnetic recording and/or reproducing apparatus uses a disc-shaped magnetic recording bearing medium having a magnetizable member mounted at its center. The apparatus includes a...
5005095 Actuator for linearizing torque in a disk drive system  
An improved rotary actuator for torque linearization in a disk drive recording system is described. A notch is formed in the actuator frame at a point midway along one of the sidewalls of a pair of...
5001592 Disc driver  
A disc driver comprises a locking plate for locking an operation button depending upon the presence or absence of an inserted magnetic disc, and a spring bridged between a tabular leg portion of...
4996623 Laminated suspension for a negative pressure slider in a data recording disk file  
A data recording disk file uses a laminated suspension for supporting a negative pressure slider in a manner which prevents the read/write transducer on the slider from contacting the disk surface...
4994930 Mechanism for actuating a protective shutter provided on a cartridge accommodating a disk  
A mechanism for actuating a shutter of a cartridge accommodating an optical disk so as to expose a window defined in the cartridge responsive to an insertion of the cartridge into the apparatus and...
4985793 Voice coil activated disk drive parking device with magnetic bias  
A parking device for parking the actuator and the heads in a disk drive utilizes the magnetic field provided by the magnet in the actuator. A permeable latch return provided in the magnetic field...
4985792 Disk drive spindle motor with externally mounted flux concentrator ring  
A disk drive spindle motor includes an improved mounting arrangement for Hall sensors and an associated flux concentrator ring. The spindle motor comprises a compact dc motor having a driven rotor...
4974103 High density disc drive with magnetic clutch for use with a sealed removable cartridge  
A disc drive 20 including a spindle motor assembly 42 having a magnetic clutch plate 46 and an actuator 47 receives a hermetically sealed cartridge 22 containing a plurality of discs 72, 74 with...
4965685 Removable cartridge disc drive with radial arm voice coil actuator  
A disc drive 20 includes a tray assembly 34 for positively seating and locking a cartridge 21 onto a spindle motor 82. The drive 20 includes heads 108, 110 mounted on a radial arm voice coil...
4965684 Low height disk drive  
A low height disk drive having an overall height of one inch (1") or less for a drive having a 31/2 inch format. The drive includes a sloped base plate having support surfaces lying in a first...
4965687 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Multihead magnetic disk device for a magnetic disk memory  
Disclosed is a magnetic disk memory having a magnetic disk and a magnetic head device adapted to record and/or reproduce information using the magnetic disk as a medium. The magnetic head device is...
4949206 Crash stop for rotary disk drive actuator  
An apparatus for supporting a read/write head at a selected one of a plurality of substantially circular, concrete data tracks and for absorbing the rebound shock of a rotary actuator, the...
4937691 Recording and/or reproducing apparatus for controlling thermal expansion problems in disk drives  
A drive for a recording disk includes a drive motor and a head transport mounted on a chassis which has a coefficient of expansion equal to that of the disk to reduce tracking errors caused by...
4930029 Magnetic disk apparatus  
The present invention resides in an arrangement structure of an electric portion, a mechanical portion, a base and a cover. A concave portion corresponding to the mechanical portion is formed in...
4926082 Superconductor devices for disk drives  
Superconducting material improves the operating efficiency and reduces the operating power demand for a disk drive suitable for interchanging data with a magnetic or optic medium. The arm...
4924337 Disk drive servo shield  
A servo shield used in small Winchester drives is provided to minimize undesired crosstalk between a data read/write head used in a stack of hard disks and servo information that is provided on an...
4920442 Releasable servo writing fixture connector  
Releasable connectors are disclosed for attaching a servo writing fixture to a head transducer assembly to facilitate writing servo information on a servo surface of a rigid disk drive. One...
4908793 Storage apparatus including a semiconductor memory and a disk drive  
An information recording and reproducing apparatus comprises a 31/2 inch hard disk drive, a semiconductor memory connected to the 31/2 inch hard disk drive for exchanging data, and a battery used...
4901173 Apparatus for coupling record disk to disk drive  
A device for coupling and aligning a rotatable disk with the motor used for rotating that disk is disclosed. The end of the motor drive shaft includes a drive spindle having a V shaped slot in its...
4894735 Disk drive housing structure  
A disk drive housing structure has a rotating disk for recording information and a transducer adapted to write and read information on and from the disk. The structure further includes a...
4893210 Computer disk drive assembly having a resiliently supported separable disk pack unit  
A computer disk assembly has a power supply-wiring harness unit and a disk pack unit for housing and mounting a hard disk drive. This disk drive is suspended within its housing on a vibration...
Matches 601 - 650 out of 760 < 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >