Quotables
"The radio craze will die out in time."
Thomas Edison ; 1922
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7190549 | Slim spindle motor and micro-drive apparatus comprising the same A slim spindle motor and a micro-drive apparatus including the slim spindle motor are provided. In the spindle motor, a hub is rotatably mounted on a base plate by ball bearings. The hub is used to seat a disk thereon. A ring-shaped magnet is engaged to the outer bo... | 03/13/2007 |
| 7190101 | Stator coil arrangement for an axial airgap electric device including low-loss materials A dynamoelectric, rotating electric machine includes a stator assembly that includes stacked stator coil windings. The machine is preferably a polyphase, axial airgap device. Improved slot filling results from the stacked stator coil configuration. Device performanc... | 03/13/2007 |
| 7187518 | Flexible printed circuit for spindle motor and disk drive having the same A flexible printed circuit (FPC), electrically connecting a spindle motor on a base of a disk drive with a printed circuit board (PCB) outside of the base, and a disk drive including the FPC, are provided. The FPC includes a wiring portion having one end connected t... | 03/06/2007 |
| 7181824 | Method of installing a disk clamp over a hub of a disk drive A disk clamp is provided for securing one or more data storage disks to a disk drive without the need for screws. A preloading device is also provided for installing the disk clamp and removing the disk clamp after installation. The preloading device applies a load ... | 02/27/2007 |
| 7180703 | Disk drive comprising a spindle motor employing anionic/cationic lubricant to reduce disk surface potential A disk drive is disclosed comprising a disk, a head actuated over the disk, and a spindle motor for rotating the disk. The spindle motor comprises a rotating component, a stationary component, and a first and second bearing assembly disposed between the rotating com... | 02/20/2007 |
| 7165314 | Method for manufacturing a magnetic head arm assembly (HAA) A system and method for an improved magnetic head arm assembly (HAA) is disclosed. The HAA includes three principal components, a head gimbal assembly (HGA), a flexible printed circuit (FPC) assembly, and an actuator coil assembly. The design allows for HAA rigidity... | 01/23/2007 |
| 7167338 | Magnetic disk apparatus A magnetic disk apparatus for reading and writing information to a magnetic disk including a motor for rotating the magnetic disk mounted thereon; a disk-shaped clamp for mounting the magnetic disk on the motor by screw fastening; and a C-shaped balancer for adjusti... | 01/23/2007 |
| 7155807 | Method of centering media disks on the hub of a spindle motor in a hard disk drive A method for centering and securing data storage disks to the hub of a spindle motor in a hard disk drive has a chamfer and a countersink on the top of the spindle motor shaft center. During the hard disk drive assembly process, a disk centering tool engages and use... | 01/02/2007 |
| 7154704 | Data storage device with a low profile spindle motor having hub and drive member arranged on opposite sides of a baseplate A data storage device (10) includes a stator (20), a rotor (50) rotatable about the stator via a pair of bearings (26), a cover (70), and two data storage disks (80). The stator includes a baseplate (22), and radially... | 12/26/2006 |
| 7154200 | Motor A motor has a stator substantially encapsulated within a body of thermoplastic material; and one or more solid parts used in the motor either within or near the body. The thermoplastic material has a coefficient of linear thermal expansion such that the thermoplasti... | 12/26/2006 |
| 7130151 | Disk device and unbalance correcting method thereof In a disk device, having disks 2 and a hub 4 for holding thereof, to be attached onto a shaft 5 of a spindle motor, for rotary drive thereof, a groove 42 is formed on a bottom surface of a flange portion 41 of the hub 4, for... | 10/31/2006 |
| 7126313 | Architecture for electric machine The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us... | 10/24/2006 |
| 7122919 | Fixation framework for ring-shaped permanent magnet A ring-shaped permanent magnet comprising a Nd—Fe—B magnetic material is integrally insert-molded within a distal part of an inner periphery of a cylindrical supporting member. By employing this structure, a coaxial alignment accuracy of the permanent magnet rel... | 10/17/2006 |
| 7122922 | Base plate for spindle motor A base plate for a spindle motor is provided defining a minimal axial gap with a relatively rotatable magnet. In an example, a surface of the base plate is positioned at 0.1 mm from an adjacent surface of a relatively rotatable magnet. The base plate is comprised of... | 10/17/2006 |
| 7113365 | Disk drive comprising a spindle motor having a windings shield for reduced disk voltage coupling A disk drive is disclosed comprising a disk, a head actuated over a surface of the disk, and a spindle motor for rotating the disk. The spindle motor comprises a ring-shaped stator having a plurality of stator teeth each wound with a winding. The spindle motor furth... | 09/26/2006 |
| 7109623 | Motor and electrically-driven fan employing the same An electrically-driven fan 1 comprises a base portion 2; a bearing portion 11; a stator 13 including iron core portions 15 and coils 16; a rotor 4 including a rotary shaft 20 and a cylindrical magnet 22;... | 09/19/2006 |
| 7109627 | Rotor for an electrical machine A rotor for an electrical machine includes a rotor carrier of metallic material with a back wall extending radially to the axis of rotation of the electrical machine and a tubular section extending in the axial direction, in which a laminated core is installed. The ... | 09/19/2006 |
| 7103894 | Disk loading mechanism, and disk recording and/or reproducing device A disk loading apparatus includes first and second main gears (35, 43) disposed at equal distances to each other in radial directions from the center of rotation of a disk table (85) which is the center of rotation of a disk-type recording medium at an... | 09/05/2006 |
| 7102850 | Balancing a rotatable body in multiple planes using invertible balancing plugs Multiple balancing plugs (114) preferably have a common length and a common offset center of gravity (130) in the length dimension for providing dual plane balancing of a rotatable body (100). The rotatable body (100) includes a plurality... | 09/05/2006 |
| 7101085 | Rotating shaft conical fluid dynamic bearing A fluid dynamic bearing design is provided featuring a rotating shaft with at least one conical bearing formed integrally thereon. The shaft is disposed through a stationary sleeve, and a fluid separates the shaft and sleeve surfaces. ... | 09/05/2006 |
| 7099109 | Hard disk drive having air flow accelerating device A hard disk drive having an air flow accelerator for improving taking-off and landing of a slider on a surface of a disk. The hard disk drive includes a spindle motor and a disk for storing data which is rotated by the spindle motor. The slider includes a magnetic h... | 08/29/2006 |
| 7099112 | Balance ring An apparatus and method for balancing a disk are described. A balance ring may be a circular band for placement along the inner diameter of a disk. On the outer diameter of the balance ring, one or more clamp structures may extend outward to attach the balance ring ... | 08/29/2006 |
| 7092203 | Method of manufacturing a fluid dynamic bearing applicable to a disk drive that includes welding a cover member to a cylindrical wall of a shaft base A method of manufacturing a fluid dynamic bearing in which a stopper is fixed by welding. The bearing comprises a hub, a shaft erected on the hub, a sleeve, a cylindrical wall erected on the hub, and the stopper mounted on the cylindrical wall. The method comprises ... | 08/15/2006 |
| 7088019 | Air bearing for MEMS based motor A MEMS (micro-electromechanical system) device having a rotor 44, a stator 43 and a shaft 27 connected to the stator 43 and around which the rotor 44 rotates. Grooves 47 are formed in a portion of the rotor 44, such t... | 08/08/2006 |
| 7064923 | Method and apparatus for mechanically balancing the disk pack of a hard disk drive The invention includes a method making a balanced disk pack for a hard disk drive, from a disk pack including a spindle motor rigidly coupled, and aligned by at least two open screw holes, with a disk clamp. The invention includes the resulting balanced disk packs, ... | 06/20/2006 |
| 7049715 | High speed spindle motor for disc drive A motor is constructed from a stator assembly including a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted by the conductors and a body of a phase change material such as a thermoplastic substantially ... | 05/23/2006 |
| 7048213 | Methods of operating a food waste disposer having a variable speed motor The present invention provides a food waste disposer having an upper food conveying section, a motor section, a central grinding section and a controller. The upper food conveying section includes a housing forming an inlet to receive food waste. The motor section i... | 05/23/2006 |
| 7037733 | Method for measuring temperature, annealing method and method for fabricating semiconductor device When the emissivity ε on the reverse face of a substrate 10 is measured during annealing processing for the substrate 10, films made from a material that varies the emissivity ε, such as a first DPS film 15 used for forming a plug 15A, ... | 05/02/2006 |
| 7035045 | Balance clip holder feature on a spindle motor with nickel-teflon coating on balance clips for reducing friction during clip adjustment in balance process A spindle motor is equipped with pre-installed adjustable balance clips on a stainless steel motor hub to facilitate better balance correction. A balance clip holder feature is formed in the hub and has grooves to hold the balance clips. The balance clip holder can ... | 04/25/2006 |
| 7035044 | Magnetic disk device having a low-profile motor without deterioration in the strength of the enclosure A magnetic disk drive includes a base constituting at least a face included in an enclosure; a shaft secured to the base; a rotor which rotates around the shaft as a rotary axis; a stator for rotating the rotor; and a magnetic disk secured to the rotor; wherein the ... | 04/25/2006 |
| 7031104 | Disk drive having guide-vanes A disk drive includes an enclosure, a rotatable disk and an actuator arm, and also includes a plurality of arcuate channels. Airflow is created within the enclosure when the disk rotates. The plurality of arcuate channels facing the disk to decrease the turbulence o... | 04/18/2006 |
| 7031106 | Sealing member, rolling bearing, thin motor, and bearing device The sealing members (14a, 14b) comprise a film member produced by forming an aluminum or alumina deposition film on at least one side surface of a film-like core material. One side surface outer circumferential rim part of the sealing mem... | 04/18/2006 |
| 7030527 | Data storage device with mechanism to control rotation of spindle motor Embodiments of the present invention effectively control, by a simple structure, floating of a rotor of a fluid dynamic bearing motor mounted in a hard disk drive. In one embodiment, a base is formed of a magnetic material. The attractive force caused by the magneti... | 04/18/2006 |
| 7027261 | Disk apparatus having an improved clamp structure A magnetic disk apparatus can achieve reduced thickness by reducing thickness of the clamp, improved shock resistance achieved by an increase of clamping force, and reduced rotating synchronous deviation due to such as camber or undulation of a disk generated by ecc... | 04/11/2006 |
| 7027262 | Spindle motor structure mounted directly on a base plate of a thin type flexible disk drive A spindle motor structure includes a solenoid coil 1 provided above a flexible board 2 provided at one face of a base plate of FDD to align in a circumferential direction centering on one axis and a turn table covering the solenoid coil 1 and pr... | 04/11/2006 |
| 7024755 | Method balancing a disk pack in a hard disk drive A method of using a balance clip in a hard disk drive spindle motor for disk pack balance correction provides the balance clip with one end that is offset from the circular shape of the balance clip. The offset end is located opposite the precise bent tab that provi... | 04/11/2006 |
| 7021829 | Fluid-dynamic-pressure bearing, spindle motor furnished with the fluid-dynamic-pressure bearing, method of manufacturing rotor assembly applied in the spindle motor, and recording-disk drive furnished with the spindle motor Fluid-dynamic-pressure bearing furnished with a shaft, a top plate fixed to an upper portion of the shaft, a thrust plate fixed to a lower portion of the shaft, a sleeve, and a cuplike bearing housing that along its inner periphery retains the sleeve. A lubricating-... | 04/04/2006 |
| 7019423 | Brushless DC motor with tray coupling structure A brushless DC motor includes a fixed portion and a rotor. The rotor includes a shaft and a top engaging face. The shaft is rotatably held by the fixed portion. The top engaging face is located on a top side of the rotor. The rotor further includes at least one prot... | 03/28/2006 |
| 7015605 | Electromotive drive system for use with a pump of a power-assisted steering system in a motor vehicle An electromotive drive is provided, especially for the pump of a power-assisted steering system of a motor vehicle. The drive includes a housing (3) with a bearing journal (15) in which the shaft (18) of a rotor (9) is rotationally mounte... | 03/21/2006 |
| 7005768 | Dynamic bearing device, producing method thereof, and motor using the same A securing surface of a housing comprises a deformation region, which deforms radially outward by a predetermined quantity during press fitting of a thrust member, and another region. The deformation region has a tapered shape that gradually reduces in diameter in t... | 02/28/2006 |
