Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8143886 | Device to test the good working order of a magnetic field generator A device to test the good working order of a magnetic field generator, and namely a demining coil, such device comprising at least one evaluation means for the magnetic field coupled with at least one display means, device wherein said evaluation means comprise at l... | 03/27/2012 |
| 8013622 | Measuring apparatus for electromagnetic interference A measuring apparatus includes a measuring body and a probe device. The probe device includes a dome-shaped metal shield, a probe, and a cable. The metal shield defines an opening in a bottom of the shield. The probe is mounted inside the metal shield. A first end o... | 09/06/2011 |
| 7816915 | Miniature coils on core with printed circuit A method for producing a coil assembly includes overlaying printed circuit traces on a core. The traces include terminals for coupling to conductive connections on a base on which the coil assembly is to be mounted. Two or more wires are wrapped around the core so a... | 10/19/2010 |
| 7417424 | Magnetic-field-measuring device A device (16) used to measure at least one component of a magnetic field, includes a magnetoresistive sensor (102) and a measuring chain (28). The input of the measuring chain is connected to the magnetoresistive sensor (102), while the o... | 08/26/2008 |
| 7408342 | Device for measuring a component of current based on magnetic fields A magnetic-field-measuring probe includes at least two magnetoresistive sensors which are sensitive to respective magnetic fields along a determined measurement axis. The at least two magnetoresistive sensors are rigidly connected to one another in a position such t... | 08/05/2008 |
| 7394243 | Proximity sensor A proximity sensor 717 comprising a combination of an arbitrarily selected one of a plurality of types of detection end modules 707, a plurality of types of output circuit modules 709 and a plurality of types of outer shell cases 711. The... | 07/01/2008 |
| 7395162 | Load coil detection and localization A method is described herein that can be used to detect the presence of a load coil within a transmission line. The method can also be used to determine the number of load coil(s) present within the transmission line. In addition, the method can be used to determine... | 07/01/2008 |
| 7390307 | Volumetric physiological measuring system and method A system and method for measuring volumes and areas using electromagnetic induction techniques. A current is generated and fed into one of two coil assemblies to induce voltage into another coil assembly to provide accurate values for volume or area. ... | 06/24/2008 |
| 7368908 | Magnetic element A magnetic element in a flat-plate shape includes a linearly-extending first flat plate being made of one of a magnetic material and a conductive material and a helical second flat plate being made of the other of the magnetic material and the conductive material, a... | 05/06/2008 |
| 7362098 | Magnetic field sensor Two coil forming elements (12, 14) formed of conductor layers and a contact means (19), which is formed in an interlayer dielectric film (13) interposed between the conductor layers and brings the upper and lower coil forming elements into conta... | 04/22/2008 |
| 7332839 | Electric machine having a laminated core with a portion jutting from the outer surface to form a gap for a flux sensor An electric machine includes a stator and a rotor interacting with the stator, wherein the stator and/or the rotor has/have a conducting device for guiding a magnetic flux. The conducting device includes a gap which is provided in a path of the magnetic flux, and a ... | 02/19/2008 |
| 7253616 | Microelectromechanical magnetometer An apparatus comprising a substrate and a MEM device. The MEM includes a comb capacitor and a magnetic element physically connected to one electrode of the comb capacitor. The magnetic element is capable of moving the one electrode in a manner that alters a capacita... | 08/07/2007 |
| 7212001 | Fluxgate sensor integrated having pick-up coil mounted on excitation coil in printed circuit board and method for manufacturing the same A fluxgate sensor is integrated in a printed circuit board. The fluxgate sensor has two bar-type(or rectangular-ring shaped) soft magnetic cores to form a closed magnetic path on a printed circuit board and an excitation coil in the form of a metal film is wound aro... | 05/01/2007 |
| 7145330 | Scanning magnetic microscope having improved magnetic sensor A scanning magnetic microscope SMM (20) includes a sensor (10) for sensing a magnetic field generated by a specimen (78), the sensor including one of a MTJ, a GMR, or an EHE sensor; translation apparatus (22A–C, 52) for translati... | 12/05/2006 |
| 7132997 | Narrow-directivity electromagnetic-field antenna probe, and electromagnetic-field measurement apparatus, electric-current distribution search-for apparatus or electrical-wiring diagnosis apparatus using this antenna probe Multiple monopole antennas or loop antennas for generating electromagnetic fields whose phases become opposite to the phase of an electromagnetic field that the conventional single monopole antenna or loop antenna generates are located in proximity to the convention... | 11/07/2006 |
| 7123006 | Sensing apparatus having fluxgate and control method thereof In a sensing apparatus, and a control method of a sensing apparatus, the sensing apparatus includes a fluxgate including a driving coil for exciting a magnetic substance core with a current, first and second current amplifiers for applying the current to first and s... | 10/17/2006 |
| 7085536 | Method and apparatus for dynamically resolving radio frequency interference problems in a system In one embodiment, there is provided a method comprising determining if one or more devices in a system is a conflicting device which device which conflicts with a wireless communications interface in the system by radio frequency which interferes with an operation ... | 08/01/2006 |
| 7050855 | Medical implantable system for reducing magnetic resonance effects Apparatus and methods are disclosed for reducing the potentially harmful effects of electromagnetic waves on an implantable medical device. In one embodiment of the present invention, an implantable medical system comprising a dual threshold magnetic sensor capable ... | 05/23/2006 |
| 7046496 | Adaptive gain adjustment for electromagnetic devices A control system for the adjustment and calibration of electromagnetic devices, such as E-I core electromagnetic devices, using adaptive gain adjustment. A controller is provided with an input current and an output force and provides an output signal indicative of a... | 05/16/2006 |
| 7041946 | Energization cycle counter for induction heating tool An induction heat treating process with a remote sensor for monitoring the duration of energization of an induction heating coil each time the induction heating coil is consecutively cycled. An identifying tag is preferably attached to, embedded within the induction... | 05/09/2006 |
| 7030617 | System, apparatus, and method for conducting electromagnetic induction surveys A method is provided for conducting an electromagnetic induction survey of a geological formation penetrated by a borehole lined with a conductive casing. The method includes positioning a transmitter in the borehole, whereby the transmitter generates a transmitter ... | 04/18/2006 |
| 7030599 | Hand held voltage detection probe A switchless, hand-held probe and method for detecting and alerting a user to the presence of an AC voltage on a conductor that minimizes the intermittent activation of the probe's indicator due to static charge build-up. The probe includes an antenna, an indicator,... | 04/18/2006 |
| 7002341 | Superconducting quantum interference apparatus and method for high resolution imaging of samples A method and apparatus performs high resolution imaging. The disclosed apparatus includes a low temperature SQUID sensor mounted in close proximity to a dewar thin window. A radiation shield has an extension surrounding the detection coil. ... | 02/21/2006 |
| 6975111 | METHOD AND DEVICE FOR MEASURING INTENSITY OF ELECTROMAGNETIC FIELD, METHOD AND DEVICE FOR MEASURING CURRENT-VOLTAGE DISTRIBUTION, AND METHOD FOR JUDGING QUALITY OF ELECTRONIC DEVICE, AND ELECTRONIC DEVICE THEREOF A conductor is disposed within an area where electric coupling and magnetic coupling take place between the conductor and a device-under-test (DUT) in at least a portion of frequency band width, and the value of composite currents that is outputted in a plurality of... | 12/13/2005 |
| 6972686 | Radiated field detector A testing device is operative to sense or monitor a radiated field emitted by an igniter for heating equipment such as an oil burner and to indicate the detection corresponding to a normal operating state of the igniter. ... | 12/06/2005 |
| 6965098 | Energization cycle counter for induction heating tool An induction heat treating process with a sensor for monitoring the duration of energization of an induction heating coil each time the induction heating coil is consecutively cycled. The sensor is preferably a counting mechanism attached to or embedded within the i... | 11/15/2005 |
| 6750648 | Magnetic field detector having a dielectric looped face The present invention provides a device for detecting a magnetic field comprising: a dielectric body; an electrically conductive pattern; and an electrically conductive ground region. The electrically conductive pattern so extends in the dielectric body as to form a... | 06/15/2004 |
| 6696834 | Magnetic field probe having a shielding layer to protect lead wires with an isolating layer A magnetic field probe includes a substrate and a conductive layer provided on the substrate. The conductive layer has a coil, lead wires, and pads. The coil has at least one turn and outputs a signal indicative of a magnetic field from a device under tes... | 02/24/2004 |
| 6690165 | Magnetic-field sensing coil embedded in ceramic for measuring ambient magnetic field A magnetic pick-up coil for measuring magnetic field with high specific sensitivity, optionally with an electrostatic shield (24), having coupling elements (22) with high winding packing ratio, oriented in multiple directions, and embedded in ceramic mate... | 02/10/2004 |
| 6650113 | Detector and method thereof for determining magnetic flux based on electromotive force induced by an excitation current A magnetic flux detector has a core member and an armature member. The core member generates a magnetic flux by an exciting coil receiving an excitation current controlled by an excitation current controller. The magnetic flux detector also has a search c... | 11/18/2003 |
| 6603307 | Magnetic flux detector with resistance of its potential setup resistor set larger than that of its search coil A magnetic flux detector comprises a core member 12 and an armature member 11, and the core member 12 generates a magnetic flux by an exciting coil 13 when the exciting coil receives an excitation current controlled by an excitation current controller 30.... | 08/05/2003 |
| 6541968 | Magnetic sensor comprising laminated sheets having magnetic body surrounded by coil pattern It is an object of the present invention to provide a magnetic sensor which is suitable to be manufactured in a large amount, has a high sensitivity, and is easy to handle. A first outer layer section A is formed by laminating a plurality of magnetic shee... | 04/01/2003 |
| 6493573 | Method and system for navigating a catheter probe in the presence of field-influencing objects A system for and method of determining and compensating for the effect of a field influencing object on a field sensor, preferably a coil, that is within a navigational domain. The navigational domain contains navigational magnetic energy and disturbing m... | 12/10/2002 |
| 6489771 | Passive external noise-canceling dynamic magnetic flux sensor for detecting the presence and direction of movement of a pig in a pipe An inductive magnet sensor has two identically wound magnetic antennae connected in series, out of phase, spaced axially from one another, and placed outside and parallel to the axis of a magnetic pipe so that induced noise voltages from the symmetrical n... | 12/03/2002 |
| 6486664 | Magnetic field exposure sensor and analysis system A compact magnetic field exposure sensor and analysis system suitable for use in the calibration of induction heating processes such as foil cap sealing or the heat treatment of metals. The compact sensor is a self-contained sensing coil, and signal stora... | 11/26/2002 |
| 6483304 | Magnetic field probe having a shielding and isolating layers to protect lead wires extending between a coil and pads A magnetic field probe includes a substrate and a conductive layer provided on the substrate. The conductive layer has a coil, lead wires, and pads. The coil has at least one turn and outputs a signal indicative of a magnetic field from a device under tes... | 11/19/2002 |
| 6373253 | High-frequency electric field measurement using a toroidal antenna A simple and compact method and apparatus for detecting high frequency electric fields, particularly in the frequency range of 1 MHz to 100 MHz, uses a compact toroidal antenna. For typical geophysical applications the sensor will be used to detect electr... | 04/16/2002 |
| 6337537 | Vacuum diode with high saturation current density and quick response time for detecting of electromagnetic radiation A vacuum diode with a high saturation current density and a rapid response time for the detection of electromagnetic radiation. This diode comprises a grid (6) in the shape of a cylinder and a photo-cathode (4) which extends along the axis (X) of the cylinder.... | 01/08/2002 |
| 6320376 | Magnetic field sensor and system for measuring a magnetic field including a plurality of conductors electrically connected in a loop A magnetic field sensor has a first conductor, a first insulating film, a second conductor, a second insulating film and a third conductor. The first conductor is composed of a "C-shaped" portion, which is formed in a C-like shape, and a linear portion, w... | 11/20/2001 |
| 6304083 | Magnetic field sensor with colossal magneto-resistive material contained within the coil of an oscillator Sensors, systems and methods for measuring magnetic field strengths in both AC and DC magnetic fields by using CMR material in tunable, radio-frequency LC oscillators are disclosed.... | 10/16/2001 |
