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| Number | Title | Issue Date |
| 7352530 | Method and apparatus for reducing a suspension gram load to increase head to disk interface reliability for contact recording systems An apparatus and method for reducing a suspension gram load to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) por... | 04/01/2008 |
| 7283331 | Method and apparatus reducing off track head motion due to disk vibration in a hard disk drive The invention includes sliders provided with indented surfaces, reducing the roll center for head gimbal assemblies below the effective thickness of the slider. Head gimbal assemblies built with these sliders may reduce off-track displacements induced by disk vibrat... | 10/16/2007 |
| 7113370 | Slanted mounting for preload flat suspension An actuator arm of a magnetic disc drive having a mounting surface includes a mounting block having a sloped mounting surface. A base plate of a head gimble assembly is attached to the sloped mounting surface. The head gimbal assembly is unbent in its free state and... | 09/26/2006 |
| 6826017 | Magnetic head assembly having damping part integral with gimbal A magnetic head assembly that lessens undesired or harmful vibration is provided. A gimbal 2 of a magnetic head assembly 1 has an outskirt part 4, an intermediate part 7, and an inland part 10. The intermediate part 7 is arr... | 11/30/2004 |
| 6496332 | Head slider for flexible magnetic disk A head slider for a flexible magnetic disk has a magnetic pole pad including a magnetic head buried in the pad and being disposed on a surface of the head slider opposed to the flexible magnetic disk, and the magnetic head performs the recording of a sign... | 12/17/2002 |
| 6421207 | Contact type magnetic disk drive In a contact type magnetic disk drive, a suspension spring or a load beam spring has a length smaller than 5 mm inclusive. This successfully reduces the amplitude of vibration to occur during seek. Also, a magnetic head slider has a mass of greater than 2... | 07/16/2002 |
| 6411470 | Durable, low-vibration, dynamic-contact hard disk drive system A disk drive system for contact recording has a flexure beam holding a transducer at one end, the flexure beam being oriented substantially along the direction that the transducer slides on a rigid magnetic disk. The transducer has a protrusion which cont... | 06/25/2002 |
| 6215626 | Magnetic head slider support mechanism with improved load distribution and a magnetic disk drive utilizing same Disclosed is a magnetic head slider support mechanism which has: a slide-type magnetic head slider with one or more contact parts to slide contacting a magnetic disk in recording and reproduction, the slide-type magnetic head slider being supported by the... | 04/10/2001 |
| 6166887 | Magnetic head unit, with coil winding arrangement to allow for specific gimbal to head surface dimensions A magnetic head unit is provided in which the distance between a surface of the gimbal plate put touching the pressing member and a surface of the magnetic head facing the first or second disc-shaped recording medium is set to fall in a range of 0.3 to 0.... | 12/26/2000 |
| 6163438 | Supporting mechanism of a magnetic head slider employing a lubricant between the surfaces of the slider and portions of the mounting gimbal To provide a supporting mechanism of a contact-type magnetic head slider (1) which enables high-speed and precise positioning as well as excellent follow-up performance to a magnetic disk (D) of the magnetic head slider (1), the supporting mechanism (10) ... | 12/19/2000 |
| 6151195 | Magnetic head slider supporting assembly A magnetic head slider is mounted on a slider mounting portion 204 supported by gimbal arms. Each gimbal arm is connected to a beam suspension. The gimbal arm on the side of the magnetic head is wider and shorter than the other gimbal arm. In a seek opera... | 11/21/2000 |
| 6084748 | Magnetic disc apparatus with a magnetic space member A magnetic disc apparatus capable of selectively driving at least two types of the magnetic discs having signal recording portions on their major surfaces and having different recording densities. The magnetic disc apparatus includes a main head carriage ... | 07/04/2000 |
| 6028743 | Magnetic head and magnetic head support structure having a support member biasing a gimbal spring positioned downstream of magnetic head main body Disclosed are a magnetic head and a magnetic head support structure in which the slider is reliably held on the magnetic disc even when the magnetic disc is rotated at high speed, whereby a satisfactory read/write characteristic is obtained. For this purp... | 02/22/2000 |
| 5926345 | Contact magnetic head having a softening portion A contact magnetic head includes a main body and at least three contact pads that contact a magnetic disk, one of which is arranged to send or receive magnetic signals from a disk. A portion of the main body situated between the contact pads has a hardnes... | 07/20/1999 |
| 5490027 | Gimbaled micro-head/flexure/conductor assembly and system A low-mass head/flexure/conductor assembly for reading and writing information with respect to a rigid magnetic recording disk. The assembly includes a read/write transducer unit, an elongate flexure, and gimbal structure interconnecting and articulating ... | 02/06/1996 |
| 5414576 | Space saving configuration of a printed cirucit board for a magnetic head on a flexure seat for the head A disk drive has a pair of transducers mounted to respective planar flexure seats and electrically connected to respective flexible printed circuit boards for data transfer with the opposite sides of a rotating flexible magnetic disk. One of the transduce... | 05/09/1995 |
| 5305167 | Magnetic disk apparatus having magnetic head insulated from metal head carriage The present inventor provides a magnetic disk apparatus that has a moving unit, a magnetic head and a wiring plate that electrically insulates the magnetic head and the moving unit. The moving unit is configured so as to be movable in a direction substant... | 04/19/1994 |
| 5303104 | Disk drive apparatus having carriage driving mechanism A disk drive apparatus for recording and reproducing signals movement-positions a head, mounted on a carriage, in a disk radial direction with the aid of a pinion provided on an output shaft of a step motor and a rack provided on the carriage The rack is ... | 04/12/1994 |
| 5278712 | Removable disk drive having two heads formed with a gimbal structure A removable disk system includes a disk which can be recorded on both surfaces thereof and a disk drive for recording input data on tracks on both surfaces of the disk. The disk drive includes head means having two heads for recording information on both ... | 01/11/1994 |
| 5204795 | Magnetic recording and reproduction system having opposed magnetic heads A magnetic recording and reproduction system having magnetic heads opposing each other across a magnetic disk. The heads have shaped control portions to generate a negative pressure between the magnetic heads and the magnetic disk in association with rota... | 04/20/1993 |
| 5187624 | Magnetic head carriage with reinforcing ribs To reduce the number of parts of a floppy disk drive as well as the steps required for assembling the floppy disk drive, a shielding ring for protecting a magnetic head from the influence of an external magnetic field, and an engaged portion to be engaged... | 02/16/1993 |
| 5166846 | Magnetic head with shielded mounting To reduce the number of parts of a floppy disk drive as well as the steps required for assembling the floppy disk drive, a shielding ring for protecting a magnetic head from the influence of an external magnetic field, and an engaged portion to be engaged... | 11/24/1992 |
| 5079661 | Magnetic head assembly having consistent track pitch An improved magnetic head assembly is provided by the invention, wherein the upper head device is biased toward the lower head device by a bias means while the lowest position of the upper head device where it comes closest to the lower head device is str... | 01/07/1992 |
| 5065271 | Thin film magnetic head apparatus and method of manufacturing the same A small light-weight thin film magnetic head apparatus for a rigid disk or a floppy disc. The apparatus includes a magnetic head formed directly on a distal end of a suspension as a thin layer, one end of the suspension being supported by an arm. This mag... | 11/12/1991 |
| 5055955 | Dual magnetic recording and reproduction heads with elastic mounting A magnetic recording and reproduction device having magnetic heads opposing each other across a magnetic disk. The heads have shaped control portions to generate a negative pressure between the magnetic heads and the magnetic disk. Each magnetic head is s... | 10/08/1991 |
| 5023735 | Magnetic head support device with double gimbal structure A magnetic head support device is characterized in that a first magnetic head is supported such that it inclined with respect to a surface of a flop disk, and a second magnetic head is supported such that it moves parallel to the other surface of the flop... | 06/11/1991 |
| 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 |
| 4943881 | Head supporting structure in disk drive system for double sided flexible disk A mechanism for supporting a pair of magnetic core heads for reading and writing magnetic codes of a flexible disk having magnetic coatings thereon while the disk is rotating. Each of the heads is disposed on either side of the disk. The head supporting s... | 07/24/1990 |
| 4926274 | Magnetic head apparatus having surfaces contoured to minimize friction between a magnetic head and a magnetic disk A magnetic head for recording and reproducing data, on and from a flexible magnetic disk, is supported by a support mechanism. The support mechanism is capable of rotating the head around the first axis extending in a radial direction of the disk, and app... | 05/15/1990 |
| 4901185 | Magnetic head device used with a rigid magnetic disk providing a constant distance between the magnetic disk and a magnetic gap of the magnetic head device A magnetic disk device includes a rigid magnetic disk having a magnetic recording surface, a slider located on one side of the magnetic recording surface of the magnetic disk and adapted to be radially movable on the magnetic disk, and a magnetic head. Th... | 02/13/1990 |
| 4882644 | Magnetic head supporting mechanism A magnetic head supporting mechanism supports first and second magnetic heads in relation to a flexible magnetic disk in a manner such that the heads move in a generally perpendicular direction to the plane of the flexible disk. The motion of the heads is... | 11/21/1989 |
| 4876623 | Magnetic disc device with gimbal spring having variable elastic characteristics A magnetic disc device for recording and reproducing data on a magnetic disc comprising a magnetic head for contacting the disc and for reading and writing data on the disc. A spindle for rotatably supporting the disc for contact with the head are provide... | 10/24/1989 |
| 4875121 | Magnetic head supporting device A magnetic head supporting device for supporting at least one magnetic head in contact with a flexible magnetic disk so as to record and reproduce signals in and from the flexible magnetic disk. The magnetic head supporting device comprises a gimbal sprin... | 10/17/1989 |
| 4811140 | Magnetic data transfer apparatus having improved transducer coil arrangement An apparatus having a pair of magnetic transducer head assemblies for data transfer with both sides of a recording medium such as a flexible magnetic disk. One of the head assemblies is mounted via a planar flexure seat on a carriage movable radially of t... | 03/07/1989 |
| 4807070 | Supporting structure for dual magnetic head The present invention relates to a mechanism for carrying a pair of magnetic core heads for reading and writing magnetic codes on a flexible disk having magnetic coatings thereon while the disk is rotating. Each of the heads is disposed on either side of ... | 02/21/1989 |
| 4803578 | Assembly for stably mounting magnetic head on carriage In a magnetic head carriage assembly which includes a head carriage for mounting a magnetic head for slidably contacting with a rotating magnetic disc and a clamper for mounting a clamp shoe disposed to oppose the magnetic head and biased toward the head ... | 02/07/1989 |
| 4791501 | Magnetic head support apparatus for a two-sided floppy disk drive A support apparatus for the magnetic heads of a two-sided floppy disk drive has a first magnetic head which is elastically supported on the front portion of a carriage so as to be able to move in the normal direction of a floppy disk, and a second magneti... | 12/13/1988 |
| 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 |
| 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 |
| 4710836 | Magnetic head A magnetic head having an upper head and a lower head disposed opposite to each other and capable of simultaneously reading information from or writing information in both sides of a magnetic disc inserted therein. The upper head is fixed to a wingable ar... | 12/01/1987 |
