Bot L LeDynh

US Patent 7579829 Inductive multi-turn encoder

US Patent 7579831 Test device for tubular specimens

US Patent 7583071 Locating device

US Patent 7589523 Magnetic sensor

US Patent 7589525 Magnetic field response sensor for conductive media

US Patent 7599614 Camera apparatuses, systems and methods for use with marine propulsion mechanisms

US Patent 7602173 Sensor system for detecting a differential angle

US Patent 7602176 AMR sensor element for angle measurement

US Patent 7609057 Rotation angle detector and bearing assembly using the same

US Patent 7612555 High-resolution magnetic encoder

US Patent 7612558 Bill discrimination device and sensor for same

US Patent 7615994 Magnetoresistive speed sensor

US Patent 7615996 Examination method for CPP-type magnetoresistance effect element having two free layers

US Patent 7619407 Gear tooth sensor with single magnetoresistive bridge

US Patent 7622915 Magnetic head test method and magnetic head tester

US Patent 7622917 Methods and apparatus for inspecting materials

US Patent 7623780 Image capturing apparatus with color compensation

US Patent 7629789 Reorientation of magnetic layers and structures having reoriented magnetic layers

US Patent 7630618 Imaging device having an optical image stabilizer

US Patent 7634190 Lens module with focusing mechanism

US Patent 7635976 Surveying of buried pipelines

US Patent 7639005 Giant magnetoresistive resistor and sensor apparatus and method

US Patent 7639006 Detector for magnetic hazards to implanted medical device

US Patent 7642784 Electromagnetic survey system with multiple sources

US Patent 7643739 Image pick-up apparatus having function of detecting shake direction

US Patent 7646196 Current sensor and method of manufacturing current sensor

US Patent 7649351 Method for interference suppression in a measuring device

US Patent 7649352 Magnetic field sensor

US Patent 7650067 Lens module with focusing mechanism

US Patent 7656153 Metal detector with improved receiver coil

US Patent 7656154 Magnetic field measurement system and optical pumping magnetometer

US Patent 7656160 Determining properties of earth formations using the electromagnetic coupling tensor

US Patent 7656161 Magnetization of target well casing strings tubulars for enhanced passive ranging

US Patent 7659715 Device for inspecting a rectilinear cavity with eddy currents

US Patent 7663373 Determining beacon location using magnetic field ratios

US Patent 7664386 Electronic device having light source and heat transmission member

US Patent 7671582 Magnetic encoder and roller bearing unit having magnetic encoder

US Patent 7675284 Rotation angle detecting device

US Patent 7675289 Underground anomalies detection vehicle and trailer

US Patent 7679368 Reflection coefficient measurement for water-based mud resistivity imaging

US Patent 7683611 Pipeline inspection using variable-diameter remote-field eddy current technology

US Patent 7683612 Thin film magnetic sensor

US Patent 7687284 Magnetic sensor and manufacturing method therefor

US Patent 7688064 Probe for assessment of metal distortion

US Patent 7688065 Piston stroke counting device

US Patent 7688066 Rotation detector

US Patent 7696746 Motion detecting apparatus

US Patent 7696747 Electromagnetic induction type inspection device and method

US Patent 7701221 Device for environment detection

US Patent 7705585 Inductive displacement detector

US Patent 7705587 Irregular saturated pole position sensor

US Patent 7705588 Apparatus and method for testing magnetic disk drive components using drive-based parts

US Patent 7705589 Sensor for detecting surface defects of metal tube using eddy current method

US Patent 7705590 SQUID arrangement

US Patent 7705591 Radio frequency sensor systems, electromagnetic sensor arrays, and methods of manufacture

US Patent 7705598 Systems and methods useful for detecting presence and / or location of various materials

US Patent 7719261 Methods and systems for calibrating a sensor using a vector field

US Patent 7719266 Non-destructive testing apparatus for the detection of corrosion

US Patent 7723974 Planishing apparatus and method

US Patent 7723984 Magnetic sensor and current sensor

US Patent 7725023 Electronic device, photographing control method, and recording medium

US Patent 7733084 Eddy current acquisition system

US Patent 7733093 Method of and apparatus for measuring tensor resistivity

US Patent 7737685 Compositions for a magnetically hard layer on a piston rod

US Patent 7737687 Fluxgate sensor having conbzr magnetic core and fabrication method thereof

US Patent 7750625 Linear position sensor

US Patent 7755350 System and method of perpendicularly magnetizing position information in a magnetically hard layer of a moving component

US Patent 7755352 Built-in testing and transient avoidance for magnetic sensors

US Patent 7759932 Magnetic field response sensor for conductive media

US Patent 7759942 Lightweight, low cost structure for formation conductivity measuring instrument

US Patent 7759943 Subsurface electromagnetic measurements using cross-magnetic dipoles

US Patent 7768257 Systems and methods for determining the position of an electrical solenoid

US Patent 7772837 Method for coding an output signal of a sensor

US Patent 7772849 Tracking positions of personnel, vehicles, and inanimate objects

US Patent 7782046 Electromagnetic tracking method and system

US Patent 7782048 Eddy current testing method, eddy current testing differential coil and eddy current testing probe for internal finned pipe or tube

US Patent 7782050 Hall effect device and method

US Patent 7786726 Sensor

US Patent 7791332 Current-loop position sensor and rolling bearing equipped with the same

US Patent 7791334 Rotary encoder and method for operation of a rotary encoder

US Patent 7791337 Metal detector

US Patent 7795862 Matching of GMR sensors in a bridge

US Patent 7800358 Noncontact rotation angle sensor, manufacturing method for the same, and throttle valve control device for internal combustion engine having the same

US Patent 7800359 Relative rotational position detection apparatus

US Patent 7800361 Magnetic encoder

US Patent 7800362 Pressure distribution detector utilizing electromagnetic coupling

US Patent 7800363 Method and an installation for using eddy currents for non-destructive inspection with automatic calibration

US Patent 7800374 Multi-component marine electromagnetic signal acquisition cable and system

US Patent 7808236 Energy harvester utilizing external magnetic field

US Patent 7812598 Electrical device and manufacture method for the same

US Patent 7812609 Antennas for deep induction array tools with increased sensitivities

US Patent 7812611 Shallow marine electromagnetic hydrocarbon prospecting

US Patent 7816911 Electromagnetic sensor systems

US Patent 7816914 Built-in testing and transient avoidance for magnetic sensors

US Patent 7816915 Miniature coils on core with printed circuit

US Patent 7816920 Metal detector

US Patent 7816922 Magnetization of target well casing string tubulars for enhanced passive ranging

US Patent 7816923 Enhanced passive ranging methodology for well twinning

US Patent 7821259 Device and method for examining magnetic characteristics of objects

US Patent 7825654 Calibration of a generator device

US Patent 7830139 Gobo wheel location drive

US Patent 7830140 Eddy current system and method for estimating material properties of parts

US Patent 7834632 Receiver streamer system and method for marine electromagnetic surveying

US Patent 7839141 Method of biasing a magneto resistive sensor element

US Patent 7843191 System and method for measuring rotational movement of a component from regions magnetized in a magnetically hard layer of the component

US Patent 7847539 Inductive proximity sensor

US Patent 7847541 Actuators and moveable elements with position sensing

US Patent 7855548 Low labor enclosure assembly

US Patent 7855550 Velocity-detecting device

US Patent 7855554 Semiconductor device, magnetic sensor, and physical quantity sensor

US Patent 7855560 Analog front-end coherent in-phase demodulation data acquisition system for resistivity image tools

US Patent 7859249 Tracking positions of personnel, vehicles, and inanimate objects

US Patent 7859250 Sensor for measuring the position of an actuator

US Patent 7859252 Rotational angle detecting devices

US Patent 7859255 Matching of GMR sensors in a bridge

US Patent 7859259 Magnetic filed compensation system with increased bandwidth

US Patent 7863885 Sondes for locating underground pipes and conduits

US Patent 7863892 Multiple SQUID magnetometer

US Patent 7863901 Applications of wideband EM measurements for determining reservoir formation properties

US Patent 7863902 Coherent in-phase demodulation for resistivity image tools with spread spectrum continuous phase modulation stimulus

US Patent 7868609 Position sensor

US Patent 7872471 Testing method of head element and magnetic recording and reproducing apparatus capable of head evaluating

US Patent 7872477 Multi-component marine electromagnetic signal acquisition cable and system

US Patent 7888929 Method and apparatus for measurement of magnetic permeability of a material

US Patent RE42159 Circuit for compensation for time variation of temperature in an inductive sensor

US Patent 7893687 LVDT acquisition device with dual demodulation subsystem

US Patent 7893689 Displacement measuring device

US Patent 7893690 Balancing circuit for a metal detector

US Patent 7898244 Electromagnetic sensor systems

US Patent 7898249 Reorientation of magnetic layers and structures having reoriented magnetic layers

US Patent 7902817 Electromagnetic tracking method and system

US Patent 7906958 Electromagnetic induction type encoder

US Patent 7906960 Inductive position sensor

US Patent 7906961 Magnetic field sensor arrangement and method for non-contact measurement of a magnetic field

US Patent 7911202 Electromagnetic tracking method and system

US Patent 7915895 Method of calibrating an azimuthal inductive cross-coil or tilted coil instrument

US Patent 7920784 Electronic device, electronic camera, light source device, illumination device, and projector device

US Patent 7923993 Rotation detection device and rotation detector equipped bearing assembly

US Patent 7923995 Sensor coil array for magnetic inductance tomography with reduced mutual coil coupling

US Patent 7924000 Miniature coils on core with printed circuit

US Patent 7928726 Rotation sensor unit

US Patent 7932716 Rotation angle sensor and rotation angle sensor system

US Patent 7932718 System and method using magnetic anomaly field magnitudes for detection, localization, classification and tracking of magnetic objects

US Patent 7944203 Corrosion evaluation device and corrosion evaluation method

US Patent 7948229 High temperature electronics for passive eddy current sensors

US Patent 7948232 Position measuring apparatus

US Patent 7948234 Magnetic sensor and method for producing the same

US Patent 7948237 Large airborne time-domain electromagnetic transmitter coil system and apparatus

US Patent 7952346 Method for estimating the magnetization level of one or more permanent magnets established in one or more permanent magnet rotors of a wind turbine generator and wind turbine

US Patent 7952347 Systems and methods of reducing a component of a signal caused by vibration

US Patent 7952349 Apparatus and method utilizing magnetic field

US Patent 7956602 Tilt angle sensor and detection-target device comprising the same

US Patent 7956607 Digital ferromagnetic part inspection

US Patent 7960968 Testing method of magnetic head by using inductance

US Patent 7960973 Tracking positions of personnel, vehicles, and inanimate objects

US Patent 7965075 Base module for a motion sensor

US Patent RE42493 Apparatus and method for wellbore resistivity measurements in oil-based muds using capacitive coupling

US Patent 7969146 Displacement measurement device

US Patent 7969151 Pre-amplifier and mixer circuitry for a locator antenna

US Patent 7973532 Downhole spread spectrum induction instruments

US Patent 7977938 Device and method of detecting ferrite and non-ferrite objects

US Patent 7982455 Rolling bearing with rotational speed sensor

US Patent 7982463 Externally guided and directed field induction resistivity tool

US Patent 7990153 Compensated directional resistivity measurements

US Patent 8008919 Method for compensating drill pipe and near-borehole effect on and electronic noise in transient resistivity measurements