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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 8169111 | Brushless motor A brushless motor has a stator, a rotor rotatably disposed in an inner circumferential portion of the stator, and a resolver configured to detect a rotational position of the rotor with respect to the stator. The resolver has a resolver stator disposed at a fixed ci... | 05/01/2012 |
| 8169112 | Position sensing device and motor using the same A position sensing device for a motor, the motor has a stator having a coil winding, and a rotor, and the position sensing device including a fixing frame, including a first fixing portion, a second fixing portion, a third fixing portion, and a fourth fixing portion... | 05/01/2012 |
| 8159096 | Apparatus for detecting position of rotation of motor A magnetic absolute sensor for a geared motor comprises a dipole magnet and hall elements. The dipole magnet is fixed to a hollow portion of a hollow rotor shaft. A bracket attached to an end plate of a motor housing is coaxially inserted from the rear end side of t... | 04/17/2012 |
| 8159098 | Motor control apparatus, power steering apparatus and brake control apparatus A motor control apparatus including: a motor including a rotating member and a stator; a housing member including a motor housing portion and a power system substrate housing portion, the motor housing portion enclosing the motor and extending in an axial direction ... | 04/17/2012 |
| 8159095 | Hiding structure for positioning signal conversion mechanism of a torque motor A hiding structure for positioning signal conversion mechanism of a torque motor, which includes a stator having a curvature center line, a rotor coaxially fitted with the stator, a positioning/detecting section disposed on the stator between the stator and the roto... | 04/17/2012 |
| 8159097 | Motor and electronic apparatus using the same A rotor 14 is rotatably disposed around a stator 13 that is provided with a plurality of magnetic poles 13a. The inner circumferential face of the rotor is provided with a magnet 15 on whose face opposing the stator main magnetizat... | 04/17/2012 |
| 8159106 | Motor and electronic apparatus using the same A stator 13 on whose outer circumference a plurality of magnetic poles 13a are arranged is mounted on a substrate 11, and a rotor 14 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided w... | 04/17/2012 |
| 8154161 | Miniature motor A miniature motor includes a substrate having a pivotal portion. A coil unit and a detection element are provided around the pivotal portion. A rotor is rotatably mounted to the pivotal portion and includes a hub and a permanent magnet mounted to the hub and aligned... | 04/10/2012 |
| 8134262 | Kit servomotor A kit servomotor consists of an electromotor and a rotary encoder. The electromotor has a motor stator (3, 8) and a rotor (1), which is positioned in unsupported fashion in the motor stator. The motor stator (3, 8) and the rotor (1) can b... | 03/13/2012 |
| 8106548 | Electric motor device The electric motor device is provided. The electric motor device includes: a first drive member that has a plurality of permanent magnets; a second drive member that has a plurality of electromagnetic coils; and a clearance controller that shifts at least either one... | 01/31/2012 |
| 8080960 | Direct flux regulated permanent magnet brushless motor utilizing sensorless control by DC and AC excitation A flux regulated permanent magnet brushless motor has a stator having an inner peripheral bore. A permanent magnet rotor is mounted within the inner peripheral bore. A control winding is supplied to a DC current to regulate flux of the machine. A small AC current is... | 12/20/2011 |
| 8058756 | Switched reluctance motor A switched reluctance motor is provided that includes a housing, a stator and a rotor received and installed within the housing, and a rotor position detector that detects a rotational position of the rotor at an outer side of the housing. With such structure, assem... | 11/15/2011 |
| 8049382 | Brushless motor A Hall element is placed under an outside rotor at an identical angular position to a centerline between two adjacent outer teeth. This structure allows narrowing a dead band of the Hall element when it senses a leakage magnetic flux. ... | 11/01/2011 |
| 8035262 | Drive unit and image forming apparatus equipped with the same A drive unit includes a motor being a drive source, a velocity reduction gear for reducing the revolution of the motor, an output shaft for connecting the velocity reduction gear to the rotation shaft of a photosensitive drum, and a velocity detection mechanism incl... | 10/11/2011 |
| 8004128 | Rotating electrical machine A rotating electrical machine having an RF-IC chip for detecting a rotation and also having a stator and a rotor. When a compact RF-IC chip is used as the RF-IC chip, the chip can detect the rotation of the rotating electrical machine. ... | 08/23/2011 |
| 7989998 | Encoder with motor With a motor with an encoder of the invention, a stopper gap formed between a stopper formed on an outer circumferential surface of a hub of the encoder and a bearing cover of an anti-load side bracket is set smaller than an encoder gap to prevent that a rotating di... | 08/02/2011 |
| 7982347 | Motor control apparatus, power steering apparatus and brake control apparatus An electric power steering apparatus including: a power system board which is received in a housing, which supports a component of a power supply circuit to supply power to a motor; a control system board which is received in the housing, which supports a component ... | 07/19/2011 |
| 7965004 | Electric motor An electric motor has a stator (12) as well as a rotor (14) rotatable about a rotation axis (85) and a sensor magnet (82) having an even number of sensor poles (71, 72, 73, 74). The sensor magnet (82) is configured to genera... | 06/21/2011 |
| 7928617 | Resolver fixing structure A resolver fixing structure which does not cause distortion at a resolver stator is provided. The resolver fixing structure arranged between coil ends of a stator constituting a rotating electrical machine includes a ring portion as a base member having a hole, and ... | 04/19/2011 |
| 7915772 | Motor for vehicle door lock A motor of a door lock for a vehicle comprises: a motor housing; an end cap fixed to the motor housing; and a rotation detector. The motor housing accommodates an armature including a motor shaft and a commutator. A sensor magnet is fixed to the motor shaft and the ... | 03/29/2011 |
| 7898124 | Step-by-step motor able to carry out up-and-down transmission A step-by-step motor able to carry out up-and-down transmission includes a housing, a top rod, a circuit board, a magnet, a coil unit and a cover. The top rod is inserted in an insert hole of the housing, having a wall bored with a cut recess. The circuit board has ... | 03/01/2011 |
| 7893579 | Brushless electric motor An electric motor has a stator (224) having a bearing tube (238) made of a magnetically transparent material; it also has a rotor (222) having a rotor shaft (234) that is at least partially journaled in the bearing tube (238), and ... | 02/22/2011 |
| 7893578 | Electric motor with discrete circuit board and sensor case An electric motor includes a rotor having a field permanent magnet, a board housing member fixed to a stator, and a magnetism detecting circuit that detects the magnetism of the field permanent magnet. The magnetism detecting circuit includes a circuit board that is... | 02/22/2011 |
| 7893580 | Positioning mechanism of resolver and electrically-driven power steering apparatus In the power steering apparatus, of the present invention, bobbins and a bus ring holder are coupled and fixed to a stator so as to be positioned at constant circumferential positions with respect to the stator, and a resolver stator is held by a groove portion of a... | 02/22/2011 |
| 7888831 | Rotor structures for motor A rotor structure for a motor comprising a rotor having an end surface; a shaft extending from the end surface; an encoder member attached to the end surface of the rotor; and a coupler coupled to the shaft adjacent to the encoder member for coupling a further membe... | 02/15/2011 |
| 7863784 | Axial flux permanent magnet machines An electromechanical machine having a stator and a rotor, the stator including at least one stator module of N toroid shaped electromagnets, the electromagnets arranged along an arc a predetermined distance apart defining a stator arc length. Each of the electromagn... | 01/04/2011 |
| 7847446 | Magnet component for attachment to a shaft The invention relates to a magnet module for fixing to a shaft (4), said module comprising a magnet holder (8) consisting of an injection moulded plastic material, and a magnet element (9). The magnet holder (8) and magnet element (9 | 12/07/2010 |
| 7834494 | Fault-tolerant electromechanical actuator having a torque sensing control system An electromechanical actuator (EMA) is provided. The EMA includes a threaded output ram connectable to a mechanical component and at least one motor module engageable with the output ram for controllably translating the output ram along a linear axis of the output r... | 11/16/2010 |
| 7834495 | Electromagnetic rotary engine An electromagnetic engine is disclosed which utilizes a plurality of rotors mounted on a common drive shaft. There are permanent magnets mounted on and near the periphery of the rotors. Electromagnets are mounted external to the rotors but adjacent to the periphery ... | 11/16/2010 |
| 7804209 | Arrangement in an electrical machine The invention relates to an arrangement for indicating a fault in an electrical machine having a stator and a rotor with an air gap between it and the stator. In order to detect impurities or similar objects entering the air gap, a means of supervision is arranged o... | 09/28/2010 |
| 7804210 | Position measurement using magnetic fields A position sensing system for positioning a linear motor that includes a stator and an armature having magnets, the armature moving relative to the stator along a path. A sensor determines a position of the armature based on measurements of a magnetic field generate... | 09/28/2010 |
| 7795766 | Motor A motor includes a housing having a substantially cylindrical shape accommodating therein a stator portion and a rotor portion. The housing includes a housing body having an opening at an upper side thereof, and a lid portion arranged between an armature and a senso... | 09/14/2010 |
| 7791232 | Power tool having an electronically commutated motor and double insulation A power tool has a housing a housing having an electronically commutated motor disposed therein. The motor has a rotor and a stator. The rotor has permanent magnets. The stator has a lamination stack and windings wound therein. Features are provided to provide doubl... | 09/07/2010 |
| 7786631 | Linear motor A position-data converter and a motor-drive control device are connected. The position-data converter receives two-phase, sine-wave analog signals da and db from two first magnetic detectors, respectively, and converts these signals da and db to position data. On re... | 08/31/2010 |
| 7772729 | Selectively configurable electric motor A selectively configurable electric motor comprises a stator and a plurality of poles electrically coupled to the stator. The selectively configurable electric motor also includes an actuator separated from the poles by an air gap and configured to move relative to ... | 08/10/2010 |
| 7728469 | Motor driving apparatus In a motor driving apparatus, an incline of boundary lines of magnetic poles with respect to a rotating shaft of a rotor and an incline in a movable direction of a magnetic detection unit with respect to the rotating shaft of the rotor are different. ... | 06/01/2010 |
| 7723877 | Motor A stator of a motor includes a stator core formed of a plurality of teeth and an annular yoke connecting the teeth to each other, and windings wound on the teeth. A rotor of the motor confronts the stator while supported rotatably, and includes a rotor magnet, a rot... | 05/25/2010 |
| 7705498 | Electric motor An electric motor, comprising a shell for a rotor, which is closed by a cover provided with a hole for the passage of a motor shaft; the cover accommodates and supports sliding contact brushes for a commutator for supplying power to the rotor, a sensor for detecting... | 04/27/2010 |
| 7683512 | Motor used to drive optical elements A motor used to drive optical elements includes a stator, a rotor revolved relative to the stator, and a feedback apparatus used to sense the position of the rotor. The feedback apparatus is an encoder. Such described structure eliminates the system's instability ca... | 03/23/2010 |
| 7663276 | Optical encoder device for small-sized motor A photo sensor module includes a holder made of resin and a light-emitting element and a light-receiving element accommodated in the holder. A printed circuit board is fixed to a flat side wall portion of a motor. The resin holder has a guide portion which is formed... | 02/16/2010 |
