Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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 |
| 8183725 | Motor and recording disc driving device A motor includes a shaft supporting a rotation of a rotor, a sleeve supporting the shaft such that an upper end of the shaft protrudes upward in an axial direction, a rotor case having a rotor hub, which is forcibly inserted and fixed to a protrusion of the shaft, a... | 05/22/2012 |
| 8148882 | Spindle motor A spindle motor is disclosed, wherein the spindle motor is formed at an outer periphery of a first protruder of a bearing housing having a gap relative to the inner periphery of the coupling hole of a base with a guide portion contacting an inner periphery of a coup... | 04/03/2012 |
| 8143751 | Motor and recording disk drive apparatus A rotor unit includes a substantially circular plate shaped cover portion, a rotor hub including a lower cylinder portion, and a magnetic field generating member attached on the lower cylinder portion. An annular salient portion is provided on the lower surface of t... | 03/27/2012 |
| 8129878 | Engine electrical generator cooling device and method A rotor for an electrical generator is disclosed, including a rotor body having a circular portion and a cylindrical portion coaxial with the circular portion. A generally cylindrical recess is defined by the cylindrical portion and the first side of the circular po... | 03/06/2012 |
| 8110953 | Powered chuck-bearing group for a printing machine A motorized chuck-bearing group for a printing machine, powered by a brushless motor, comprises a casing housing a stator coil and a rotor, controlled both in velocity and activation times by a control circuit comprising an encoder device, in which a shaft supports ... | 02/07/2012 |
| 8076806 | Spindle motor having bushing A spindle motor is provided. The spindle motor includes a base, a bearing housing, a bearing, a rotation shaft, a stator, a bushing, and a rotor. The bearing housing is installed on the base. The bearing is fixed inside the bearing housing. The rotation shaft is ins... | 12/13/2011 |
| 8072101 | Base for a heat-dissipating fan motor A base for a heat-dissipating fan motor includes a plate member made of metal, a coupling barrel made of plastic, and an outer case made of plastic. The plate member is formed with at least one positioning leg and at least one air inlet hole. The plate member has a ... | 12/06/2011 |
| 8049381 | End cover and external rotor motor using the same An end cover for an external rotor motor. The external rotor motor has a stator core having a center hole, and the end cover including a body, a cylindrical connecting portion, and multiple protruding bars each having an arc-shaped top surface. The cylindrical conne... | 11/01/2011 |
| 7994669 | Fan motor having fixing structure for circuit board A motor comprises a base, a rotor, a stator, and a circuit board. The base includes a sleeve. The stator includes at least one fastener. The sleeve has an inclined outer surface. The fastener extends to the circuit board and abuts the inclined outer surface to faste... | 08/09/2011 |
| 7982356 | Electric motor and method for manufacturing an electric motor for a motor vehicle actuator drive The invention relates to an electric motor and a method for manufacturing an electric motor for a motor vehicle actuator drive. The electric motor has a motor housing, a rotor assembly and a stator assembly. The stator assembly has stator teeth which are each provid... | 07/19/2011 |
| 7956501 | Motor and washing machine using the same Disclosed is a motor which includes a stator including a plurality of aluminum coils and a rotor. The rotor includes a frame including a magnetic material, and a permanent magnet attached to the frame. The permanent magnet is made of neodymium. ... | 06/07/2011 |
| 7952244 | Turbojet having an electricity generator arranged in its fan The turbojet comprises a high pressure spool and a low pressure spool driving a fan. In order to produce electricity, it further includes an electricity generator arranged in the fan and taking power therefrom. The generator comprises a rotor incorporated in the fan... | 05/31/2011 |
| 7952255 | Rotor for an electrical machine and electrical machine for a drivetrain in a motor vehicle A rotor and an electrical machine for a motor vehicle drivetrain. The rotor includes a rotor carrier with a radial supporting area, an axial supporting area, which extends axially with respect to the axis of rotation of the rotor and which is connected to the radial... | 05/31/2011 |
| 7911092 | Spindle motor Embodiments of a spindle motor are provided. A spindle motor can include a base in contact with a bearing housing, a bearing installed in the bearing housing, a rotational shaft rotatably supported by the bearing, a stator disposed around the bearing housing and hav... | 03/22/2011 |
| 7898129 | Spindle motor, and recording and reproducing apparatus equipped with the same With a spindle motor, a stator core comprises a plurality of salient pole portions that are formed in a radial shape, are wound with a stator coil, and are disposed at a uniform angle except for a non-equiangular pitch region, a circular outer peripheral yoke formed... | 03/01/2011 |
| 7884512 | Fixing structure for printed circuit board of micro motor The present invention relates to a fixing structure for printed circuit board (PCB) of micro motor, including a base and a PCB. The base has a shaft tube disposed centrally therein; at least a circuit board fixing pin is protruded beyond the base peripheral to the s... | 02/08/2011 |
| 7884513 | Rotor A rotor includes a hub, a permanent magnet and a shaft. The hub has an inner surface and an outer surface, with an assembling hole being formed at the center of the inner surface. The permanent magnet is mounted on the inner surface of the hub. The shaft has two end... | 02/08/2011 |
| 7876005 | Motor In a motor, a retaining claw with a slanted surface is arranged around the upper end of a tubular portion of a housing for mounting a rotor. A cylindrical portion is integrally formed in a peripheral area of a rotational axis of a turntable. A retaining member with ... | 01/25/2011 |
| 7843095 | Friction drive spindle unit A spindle unit (A) for effecting a manufacturing or repair procedure includes a spindle assembly (2) having a spindle (12) that holds a tool (B), an electric motor (4), and a friction drive transmission (6) located between the spindle ass... | 11/30/2010 |
| 7821172 | Motor stator with different winding volume for different stator teeth A device includes a stator lamination of a stator for a motor with a first set of stator teeth and a second set of stator teeth, a first set of windings with wire having a first diameter on the first set of stator teeth and a second set of wire windings with wire ha... | 10/26/2010 |
| 7800263 | Heat dissipating fan A heat dissipating fan includes a fan housing having an outer frame portion. An air inlet and an air outlet are respectively defined in two ends of the outer frame portion. A hollow motor casing is formed in and integral with the outer frame portion. An inner-rotor-... | 09/21/2010 |
| 7732956 | Motor A motor includes a shaft that serves as a rotation center when a rotor is rotated with respect to a stator, a bearing that supports the shaft in a circumferential direction of the shaft, a thrust bearing that supports one end of the shaft in a thrust direction of th... | 06/08/2010 |
| 7732957 | Brushless motor A brushless motor includes a motor drive unit, a circuit board arranged to drive the motor drive unit having through holes formed in the upper surface and the lower surface; and a motor attachment plate including a plate-shaped base portion and plate-shaped fixing p... | 06/08/2010 |
| 7714469 | Motor and storage disk drive using the same In the base bracket of the motor, the bottom-inner surface of the base bracket includes a first bottom-inner area arranged over a circuit board attaching portion of a bottom-outer surface to which the circuit board is attached, and a second bottom-inner area arrange... | 05/11/2010 |
| 7701098 | Mounting structure for a stator of a motor A mounting structure for a motor includes a tube and a stator. The tube includes at least an axial positioning block and at least a radial mounting block. The stator defines an axis hole for receiving a portion of the tube therein, and at least a positioning groove ... | 04/20/2010 |
| 7692354 | Rotary electric machine with reduced torque ripple The present invention relates to a rotary electric machine comprising: a concentrated winding stator having teeth and coils placed on the teeth, the teeth having end faces that are convex towards the rotor; and a r... | 04/06/2010 |
| 7692343 | High magnetic reluctance motor assembly A motor assembly in which magnetic attraction between the magnets and the base of the motor is reduced by providing increased magnetic reluctance. This is achieved without the need to increase the overall height of the motor assembly, thus making the motor assembly ... | 04/06/2010 |
| 7687946 | Spindle motor A spindle motor is disclosed. The spindle motor includes a base including a PCB, a bearing housing installed on the base and having a bearing therein, a rotating shaft rotatably supported by the bearing, a stator including a core arranged around the bearing housing ... | 03/30/2010 |
| 7687966 | Optimized stator mounting method to printed circuit board A stator assembly detachably mounted with a fan housing. The stator assembly includes a stator including one or more first mounting feet and one or more second mounting feet disposed apart from each other. Additionally, the stator assembly includes a printed circuit... | 03/30/2010 |
| 7671494 | Motor/generator A motor/generator includes a rotor member, a shorting member and a stator. The rotor member has a plurality of permanent magnets. The shorting member is configured and arranged to selectively establish a short-circuit in magnetic flux of the permanent magnets to swi... | 03/02/2010 |
| 7658251 | Direct drive electric traction motor A direct drive traction vehicle motor system for a wheeled vehicle includes an electric motor rotor for mechanically attachment to a vehicle wheel for rotational movement with the vehicle wheel. An attachment structure is concentrically mounting the rotor to the veh... | 02/09/2010 |
| 7656064 | Motor having suction ring A suction ring is fixed to a motor base and is provided with an outer circumferential section having a first outer diameter that is smaller than an inner diameter of a wall section of the motor base. A plurality of protruded sections each have a second outer diamete... | 02/02/2010 |
| 7652399 | Linear vibrator Embodiments of a linear vibrator are provided that are capable of reducing the manufacturing cost, increasing the product reliability and increasing the vibrating quantity. An embodiment of a linear vibrator can include a case formed of an upper case portion and a l... | 01/26/2010 |
| 7642681 | Rotary electric machine equipped with one or more magnetic sensors The present invention provides a rotary electric machine, in which it is possible to reduce the dimension of a casing in a direction along a rotation center line. The rotary electric machine comprises a magnet rotor 2 rotating about a rotation center line ... | 01/05/2010 |
| 7586223 | Ultra-thin spindle motor having groove formed on the outer circumferential surface of thrust bearing An ultra-thin spindle motor having a groove formed on the outer circumferential surface of a thrust bearing is disclosed. The present invention relates to an ultra-thin spindle motor among small-sized motor using a hydro dynamic pressure generating bearing and its o... | 09/08/2009 |
| 7579726 | Fan, motor and stator structure thereof A stator structure of a motor includes a first magnetic substrate, a second magnetic substrate and a plurality of coil units. An outer profile of the first magnetic substrate has a plurality of first protruding parts, and an outer profile of the second magnetic subs... | 08/25/2009 |
| 7557476 | Hollow core electric motor The disclosed system, device and method for an electric motor generally includes a hollow shaft having a first end and a second end. An electromagnet is coupled to the hollow shaft, where the electromagnet is suitably configured to emit an electromagnetic field, and... | 07/07/2009 |
| 7554229 | Stator structure of motor A stator structure of a motor. The stator structure has a base including a main body and a plurality of protrusions extending from the main body. A stator part has a plurality of magnetic-pole portions, wherein each protrusion is positioned in a gap between every tw... | 06/30/2009 |
| 7554228 | Cooling fan with an outer rotor motor A cooling fan with an outer rotor motor supported by a fan housing. A motor housing is disposed within a conduit through the fan housing, while the outer rotor motor is disposed within the motor housing. A plurality of support members coupled between the motor housi... | 06/30/2009 |
| 7550884 | Brushless motor A cutout portion is formed at an outer peripheral side of a stator placing portion provided in a bearing bush for placing a core back portion of a stator. A connecting wire portion of a coil of the stator is inserted through a gap formed between the cut-out portion ... | 06/23/2009 |
