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Patent # Description
US-6,104,158 Force feedback system
A system and method for providing a tactile virtual reality to a user is present. The position and orientation of the user is utilized to generate a virtual...
US-6,104,157 Apparatus and method for controlling an electrical starter of an internal combustion engine
The apparatus for controlling an electrical starter motor for cranking a cranking mechanism of an internal combustion engine to start the engine includes a...
US-6,104,156 Device for controlling the stopping of a motorized shrouding product
Device for controlling the stopping of a shrouding product driven by an asynchronous motor having a phase-shifting capacitor (1) stopping the motor when the...
US-6,104,155 Controlled braking device for electric motors and in particular portable tools
An electric motor (10,110,210) comprises a TRIAC (16, 116, 216) for controlling the application power to the motor and a switch (18,118,215a) for controlled cut-off...
US-6,104,154 Tricycle with electric motor
A tricycle with an electric motor in which two rear wheels 4 and 4 are driven by not only an electric motor 5, but also pedals 6 with manpower. A rotational...
US-6,104,153 Disk drive employing method of spinning down its spindle motor to reduce the time required for spinning it down...
A disk drive employs a method of operating a spindle motor to respond to a spin-down command to reduce the time required for spinning down and subsequently...
US-6,104,152 Motor drive control
A control strategy for a multiple phase brushless motor (1) is disclosed in which the top (2, 3, 4) and the bottom (5, 6, 7) switching devices in two arms of the...
US-6,104,151 Starting circuit and method for stagedly starting an electrosensitive circuit
A starting circuit and a method for stagedly starting an electrosensitive circuit without introducing a surging current are disclosed. The method includes (a)...
US-6,104,150 Motor driving circuit
A motor driving circuit controls driving currents to be supplied to stator coils of a plurality of phases so as to supply the driving currents to the stator...
US-6,104,149 Circuit and method for improving short-circuit capability of IGBTs
A simple, off-chip circuit and method for endowing high efficiency IGBTs with short-circuit capability, that is essentially transparent to the user. The...
US-6,104,148 System and method for controlling an AC traction motor without sensing motor rotation speed
A processor system and method are provided for providing motor excitation frequency control in a vehicle propelled by AC electric traction motors. The processor...
US-6,104,147 Pulse generator and discharge lamp lighting device using same
A pulse generator for a stable output pulse voltage obtains a high voltage pulse with a charge accumulated in a capacitor and discharged at a discharge gap made...
US-6,104,146 Balanced power supply circuit for multiple cold-cathode fluorescent lamps
The present invention provides a CCFL driving circuit having a parallel-arranged transformer system and a feedback loop positioned to sense the current in one of...
US-6,104,145 Method of DC operation of a discharge lamp with ARC stabilization
An AC discharge lamp having a constricted arc, and powered through a unidirectional ballast with a unidirectional current, is described. The AC lamp operates as...
US-6,104,144 Charging circuit for stroboscope
A conventional stroboscope circuit in use for a film camera has encountered with problems that charging of a main capacitor is incapable when other functions of...
US-6,104,143 Exciter circuit with solid switch device separated from discharge path
An exciter circuit for an ignition system including an igniter plug. The exciter circuit includes an energy storage device comprising a pair of capacitors and a...
US-6,104,142 Circuit arrangement for operating low-pressure discharge lamps
In the circuit arrangement for the high-frequency operation of a low-power ow-pressure discharge lamp (LP) having a mains rectifier (2) and a half-bridge circuit,...
US-6,104,141 Inventer-ballast using a piezoelectric transformer
A circuit arrangement for operating a lamp has circuit input terminals for connection to a supply voltage source. An inverter is coupled to the circuit input...
US-6,104,140 Motion activated illuminating footwear and light module therefor with continuous/sequential oscillating lights
A light module for use with a plurality of light sources mounted to footwear, includes a power supply, an oscillator circuit, a power supply transmission circuit...
US-6,104,139 Procedures and apparatus for turning-on and turning-off elements within a field emission display device
A method of removing contaminant particles in newly fabricated field emission displays. According to one embodiment of the present invention, contaminant...
US-6,104,138 Frittable-evaporable getters having discontinuous metallic members, radial recesses and indentations
A frittable evaporable getter device includes a metallic container having a disk-shaped bottom wall and a side wall extending upwardly from the bottom wall. A...
US-6,104,137 Organic electroluminescent display device
An organic electroluminescent display device includes an organic electroluminescent element formed on a substrate thereof and having an organic compound layer...
US-6,104,136 Image forming apparatus
An image forming apparatus includes a vacuum envelope and an electron emission element, an image forming member and a spacer disposed within the vacuum envelope....
US-6,104,135 Field emission display with multi-level interconnect
A field emission display (10) includes a substrate (12), a substantially inflexible dielectric layer (60) located on a portion of the substrate, the substrate...
US-6,104,134 Fluorescent lamp
A fluorescent lamp comprising a bulb, a fluorescent material coated on an internal surface of the bulb, a stem, a discharge chamber filled with gas and mercury,...
US-6,104,133 Neon discharge lamp with powder coating
A neon discharge lamp provided with a powder coating with an appropriate particle size of used powder, is applied on an inner surface of a tubular bulb to the...
US-6,104,132 Color cathode ray tube
A color cathode ray tube comprises a vacuum envelope in which there is mounted a shadow mask having a curved surface having a plurality of electron beam passing...
US-6,104,131 Microtip cathode with resistive layer
A cathode (1) includes a substrate (10), a resistive layer (11) disposed on the substrate (10); at least one cathode conductor (13), and microtips (2) disposed...
US-6,104,130 Radial gap high thread spark plug
A spark plug having a center electrode with a cylindrical body with a tip at one end and a terminal near the other end with an insulator radially surrounding the...
US-6,104,129 Multilayer electrostrictive element and method of manufacturing same
A multilayer electrostrictive element having a first external electrode connected to an internal electrode on alternate layers on a first side surface of an...
US-6,104,128 Piezoelectric ceramics and piezoelectric transformer formed therefrom
PZT piezoelectric ceramics for forming a piezoelectric transformer includes a main composition consisting of Pb [Zr.sub.A Ti.sub.B (Zn.sub.1/3 Nb.sub.2/3).sub.c...
US-6,104,127 Piezoelectric type actuator having stable resonance frequency
A piezoelectric type actuator is composed of a vibration element, in which a piezoelectric element is attached on a vibration plate, an upper member and a lower...
US-6,104,126 Composite transducer with connective backing block
A backing block for an ultrasonic array transducer comprises a flex circuit embedded in a body of acoustic backing material, with conductive traces on the flex...
US-6,104,125 Linear actuator
A linear actuator includes two spaced seats connecting by a center piezoelectric member. The seats are mounted in a rail frame. Each seat has a piezoelectric...
US-6,104,124 Ultrasonic motor and electronic apparatus and analog timepiece having the ultrasonic motor
An ultrasonic motor has a piezoelectric element driven by application of a voltage thereto to undergo expansion and contraction. A vibrating body is ...
US-6,104,123 Vibration actuator having a supporting member to support a vibration member
A vibration actuator having improved drive efficiency by preventing the generation of noise and unnecessary vibrations. The vibration actuator includes a...
US-6,104,122 Actuator
This invention is an actuator including a vibration member to which a piezoelectric element is fixed, a plurality of projections arranged at node positions of a...
US-6,104,121 Ultrasonic transducer with a disk-shaped quarter wave length transformer
An ultrasonic transducer having a narrow principal lobe opening angle simultaneously with low secondary lobe amplitudes is provided. The ultrasonic transducer...
US-6,104,120 Electric charge type sensor
An electric charge type sensor includes a detection element detecting a physical property to be detected and outputting a detection signal in the form of...
US-6,104,119 Piezoelectric switch
A piezoelectric switch (10) is made by laminating one piezoelectric film (16) on the top and a second piezoelectric film (18) on the bottom sides of a stiff...
US-6,104,118 Alternating current generator for use in vehicle
A rotor 2 comprises of a pair of claw shape magnetic poles 3N and 3S and plural permanent magnets 5. The permanent magnet 5 is arranged between claw portions of...
US-6,104,117 Motor with reduced clogging torque incorporating stator salient poles and rotor magnetic poles
In the permanent magnet motor of the present invention, where P is an integer not smaller than one, the number of magnetic poles of a rotor (22) is set to 2P,...
US-6,104,116 Generator stator keybar compliant clamp and current shunt
A compliant clamp (20) for a power generator and associated methods are provided (see FIG. 5). The clamp (20) preferably includes an end plate (18) mounted to an...
US-6,104,115 Method for fabricating a permanent magnet rotor, and rotor obtained by said method
In a method for fabricating a permanent magnet rotor for an electrical machine, a rotor support having an axis of rotation is provided. At least two poles are...
US-6,104,114 Brushless motor
The brushless motor according to the present invention is small in overall height without deterioration of the rotational accuracy. One of a pair of bearings is...
US-6,104,113 Coil assembly for sensorless rotor angular position control of single phase permanent magnet motor
A coil assembly for sensorless rotor angular position control of a single phase permanent magnet motor. The coil assembly is positioned axially adjacent one end...
US-6,104,112 Brushless electric motor assembly
A compact, self contained brushless motor assembly which has a stator fixedly mounted onto a hub. Located about the stator is a rotor with a shaft being...
US-6,104,111 Rotary electrical machines
A rotary electrical machine (1) has a least one stator (23). The stator is provided with at least one radial channel (107) for ducting cooling air. The channel...
US-6,104,110 Electrical noise suppressor for direct current motor
An electric noise suppressor for a direct current motor comprises a grommet, a choke coil and an electrical terminal. The grommet has an accommodating portion...
US-6,104,109 Yoke manufacturing method, stator manufacturing method, and motor
A base plate is formed by press processing by cutting out a bottom portion and a side wall portion connected integrally with the bottom portion, and a...
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