Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8169747 | Cushioning ramp having a stepped structure for a magnetic disc apparatus For cushioning a shock to prevent problems such as a reading error, a ramp for a magnetic disc apparatus is made of a resin material for forming a ramp main body and a material having higher rigidity than the resin material, disc facing surfaces in the disc insertio... | 05/01/2012 |
| 8107199 | Ramp to park read/write head and hard disk drive including the same A ramp to park a read/write head includes a fixed portion fixed to a base member of the hard disk drive, and a supporting portion to contact and support the tip-tab of the suspension assembly and includes an inclined rail surface and a horizontal rail surface which ... | 01/31/2012 |
| 7986496 | Disk drive device and ramp used therefor Embodiments of the present invention help to prevent data error occurrence in a hard disk drive by reducing the generation of dust caused by friction between a magnetic disk and a ramp. According to one embodiment, a hard disk drive comprises an enclosure, a motor f... | 07/26/2011 |
| 7885040 | Suspension with locally strengthened gimbal An apparatus with a head gimbal assembly designed to reduce movement and rotation of components of the head gimbal assembly structure is disclosed. One embodiment head gimbal assembly may comprise a flexure including a ramp limiter, a suspension assembly further com... | 02/08/2011 |
| 7830639 | Data storage device and disk drive Embodiments in accordance with the present invention provide achieve an increase of storage capacity and thinning down of a disk drive by reducing effects from an error in an assembly position of a ramp. A data storage device according to an embodiment of the presen... | 11/09/2010 |
| 7821740 | Ramp made of polyoxymethylene resin A ramp for hard discs which is obtained by molding a resin composition containing (A) a polyoxymethylene resin, and (B) at least one polymeric lubricant selected from the group consisting of (b-1) a polyolefin resi... | 10/26/2010 |
| 7768745 | Shock improvement ramp for load/unload mechanism and magnetic disk drive Embodiments of the invention prevent contact between a peripheral edge of a magnetic disk and a counter surface of a ramp when the magnetic disk is displaced. In one embodiment, a ramp is disposed near the peripheral side surface of a magnetic disk. The ramp has mag... | 08/03/2010 |
| 7746599 | Hard disk drive apparatus and method with ramp parking A hard disk drive including an end tab extending from an end portion of a suspension that supports a read/write head, and a ramp including a plurality of end tab limiters and preventing the end tab from being separated, due to an external impact, from a parking zone... | 06/29/2010 |
| 7733608 | Head holding member, disk device with the head holding member, and head holding method in the disk, device The present invention provides a head holding member and a head holding method of a head actuator having a very high impact resisting property, and having a simple construction, and a disk device using the head holding member and the head holding method. The head ho... | 06/08/2010 |
| 7697239 | Magnetic head, method of manufacturing the magnetic head, and magnetic disk device A magnetic head used in a lamp load type magnetic disk device is disclosed. The magnetic head includes a head slider having a recording element and/or a reproducing element, and a suspension that supports the head slider. The suspension includes a magnetic head supp... | 04/13/2010 |
| 7675712 | Ramp structure with inclined contact surface An apparatus for unloading a moveable member comprises a ramp structure with an inclined surface. A lift tab of the moveable member advances along the ramp structure to the inclined surface while pivoting about a pivot point to undergo an increase in elevation above... | 03/09/2010 |
| 7570459 | Ramp loading unit and drive having the same A ramp loading unit includes a holding part that holds, outside a recording medium, a lift tab connected to a suspension that supports a head used to record information in or reproduce the information from the recording medium, and a sliding part to which the lift t... | 08/04/2009 |
| 7564653 | Magnetic disk drive apparatus with magnetic head sliders in a magnetic loop while in an unloaded state A magnetic disk drive apparatus includes a magnetic disk, a ramp mechanism, a pair of magnetic head sliders each having an MR read head element, and a load/unload mechanism for retracting the pair of magnetic head sliders to the ramp mechanism under unloading states... | 07/21/2009 |
| 7474509 | Magnetic recording apparatus with head arm holding part A magnetic recording apparatus comprises a magnetic disk; a magnetic head, including a magnetoresistive device, for reading information from the magnetic disk; an arm attached to the magnetic head and swings so as to load and unload the magnetic head to or from the ... | 01/06/2009 |
| 7365945 | Magnetic head suspension with a lift tab There is provided a magnetic head suspension including: a flexure portion which has a magnetic head mount area for supporting a magnetic head slider; a load bend portion which generates a load for pressing the magnetic head slider to a storage surface of a storage m... | 04/29/2008 |
| 7365930 | Load/unload mechanism for magnetic disk drive Formation of wear powder caused by wear of a ramp which is attributable to mutual contact of a lift tab and the ramp is to be reduced in loading and unloading operations. In one embodiment, a spindle motor is turned on by application of power, then the temperature o... | 04/29/2008 |
| 7356908 | Method of assembling a disk drive unit via a ramp tool A disk drive unit includes a first cover having a first part of magnet component and a head stack assembly mounted on the first cover; and a second cover assembled with the first cover, which having a second part of magnet component, a spindle motor and at least one... | 04/15/2008 |
| 7312953 | Head suspension assembly and disk drive using the same A head suspension assembly includes a head, a load beam carrying the head at one end, a resilient member joining the load beam and a carriage, and a pivot bearing provided between the load beam and the carriage and structured so that the load beam is movable in a di... | 12/25/2007 |
| 7295395 | Sensing a prior transducer position by a motion pattern A motion pattern of an actuator supporting a head is monitored during/after a disc spin-up. The monitor's signal is configured to generate a digital indication of where the head was just before the spin-up. The digital indication is optionally a single-bit indicator... | 11/13/2007 |
| 7295405 | Disk drive capable of restricting unexpected movement of a head suspension using a latch member to restrict movement of the suspension and elasticity of the suspension to enable a head load tab to move down a ramp inclined surface A guiding passage is formed on a ramp member. The guiding passage defines an inclined surface angled towards plane including the surface of a recording disk at a position toward an inoperative position. A restriction member is allowed to restrict the movement of the... | 11/13/2007 |
| 7268972 | Recording medium drive having rectifier plate integral to ramp member A recording medium drive such as a hard disk drive includes a ramp member. The ramp member receives the tip end of a head actuator. A head slider is thus kept at a position spaced from the recording medium even when the recording medium stands still. A rectifier pla... | 09/11/2007 |
| 7256966 | Ramp made of polyoxymethylene resin A ramp for hard discs which is obtained by molding a resin composition containing (A) a polyoxymethylene resin, and (B) at least one polymeric lubricant selected from the group consisting of (b-1) a polyolefin resi... | 08/14/2007 |
| 7251096 | Shock induced cleaning for hard disk drives Embodiments of the present invention recite a method for removing particles from a magnetic head support assembly of a hard disk drive. In one embodiment, a load/unload operation of the magnetic head support assembly is initiated. Particles are dislodged from the ma... | 07/31/2007 |
| 7236331 | System and method to provide a ramp having a location which is transitioning from a first grade to a second grade for removing a read/write head from a media Methods to provide a ramp to remove a read/write head connected with a suspension from a media in accordance with the present invention can comprise calculating a grade of one or more surfaces having a plurality of progressively shallower grades. A transition betwee... | 06/26/2007 |
| 7222411 | Method of interconnecting a load/unload ramp assembly with a base plate of a disk drive The present invention is directed to a load/unload ramp assembly which is interconnectable with a base plate of a dynamic load/unload-type disk drive. The load/unload ramp assembly generally includes a load/unload ramp and at least one base plate attachment cantilev... | 05/29/2007 |
| 7199977 | Magnetic recording disk having a transition zone A disk drive having a magnetic recording disk with a transition zone is described. A surface texture of the transition zone induces the head to fly at a greater height than when operating over a data zone, while transitioning the head to a landing zone to park. ... | 04/03/2007 |
| 7164549 | Load/unload system and method for maximizing disk writeable area A system and method for loading a head onto a specified load zone of a disk includes reading positional index information for determining a position of a pre-specified load zone of a disk. When to load a head is determined based on the positional index information s... | 01/16/2007 |
| 7154698 | Load/unload system and method for maximizing disk writeable area A system and method for loading a head onto a specified load zone of a disk includes reading positional index information for determining a position of a pre-specified load zone of a disk. When to load a head is determined based on the positional index information s... | 12/26/2006 |
| 7146710 | Two stage lubrication process for disk drive A method for creating a hard drive includes installing a slider in a disk drive having at least one disk lubricated with a first stage lubricant. The slider is designed to be in contact with the disk at initial use. The slider is burnished. A second stage lubricant ... | 12/12/2006 |
| 7133249 | Recording disk drive having rectifier plate and ramp member therefor A recording disk drive comprises a head actuator coupled to a support shaft for relative rotation so as to support a head slider at a tip end of the head actuator. A rectifier plate is located at a location outside an arc defined along a movement path of the tip end... | 11/07/2006 |
| 7133260 | Recording medium drive capable of avoiding damages of recording medium A protrusion is opposed to a head actuator positioned at the inoperative position in a recording medium drive such as a hard disk drive. When a larger impact is applied to the head actuator, the head actuator deforms by a predetermined amount, so that the protrusion... | 11/07/2006 |
| 7116508 | Apparatus for locking a moveable part of a magnetic disk apparatus A magnetic disk apparatus has: a magnetic disk having a magnetic film formed on a substrate; a spindle motor for rotating the magnetic disk; a magnetic head for writing/reading information on/from the magnetic disk; a supporting member for supporting the magnetic he... | 10/03/2006 |
| 7110221 | Disk drive An actuator gripping device which prevents the actuator of the head support device from serious trouble such as damage to the surface of the recording medium due to external shocks. An actuator 7 comprises actuator sub-unit 27 having a tab 8 at ... | 09/19/2006 |
| 7088555 | Ramp for hard disc A ramp having a surface hardness of 2.6 GPa or more, which is obtained by molding a polyacetal resin. Such a ramp made of a polyacetal resin is excellent in moldabilities, and an abrasion loss at the resin portion of the ramp is remarkably small when a hard disk is ... | 08/08/2006 |
| 7019932 | Disk unit having mechanism for loading and unloading head uniformly in circumferential direction of a disk A disk unit has a function of loading a head on a disk from a holding mechanism during a load operation and unloading the head from the disk during an unload operation. The disk unit includes a controller which controls a movement of the head so that the loading ope... | 03/28/2006 |
| 7012788 | Spacer ring for disk drive spindle with load/unload feature, latch feature, and tribological overcoat A hard disk drive utilizes a spacer ring at its inner diameter to load and unload the read/write heads. During relatively small shock events, the actuator is retained relative to the disk through a circumferential groove in the spacer ring. A complementary protrusio... | 03/14/2006 |
| 7000309 | Method of assembling a disk drive by electrically grounding a disk drive cover A method of assembling a disk drive includes providing a disk drive base. The method further includes providing a disk drive cover having an inside face and an outside face. The inside face is coated with an electrically insulative material. The method further inclu... | 02/21/2006 |
| 6973535 | Digital device configuration and method An electromechanical data storage arrangement is interfaced with a host. The interface may include a conductor that carries read and write gate signals. Another conductor carries both a servo sync mark and an error signal. The storage arrangement includes an externa... | 12/06/2005 |
| 6970322 | Bulkhead connector for low leak rate disc drives A disc drive has a rotatable disc carried by a spindle motor and an actuator assembly with a read/write head. A base deck supports the spindle motor and the actuator assembly and defines a connector opening for transmitting electrical signals from the read/write hea... | 11/29/2005 |
| 6965501 | Integrated lead suspension for high density drive The integrated lead suspension assembly comprises several improvements. An oversized terminating pad for the electrical traces and a smaller adjacent insulation layer on the flexure assembly enable laser solder ball bonding of the pads to the read/write terminal con... | 11/15/2005 |
