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| Number | Title | Issue Date |
| 7164126 | Method of forming a sample image and charged particle beam apparatus An object of the present invention is to provide a sample image forming method and a charged particle beam apparatus which are suitable for realizing suppressing of the view area displacement with high accuracy while the influence of charging due to irradiation of t... | 01/16/2007 |
| 7081748 | Magnetic resonance scanner with electromagnetic position and orientation tracking device A system for combining electromagnetic position and orientation tracking with magnetic resonance scanner is provided. One embodiment includes a magnetic resonance scanner defining a reference coordinate system for scanning a target. Coupled to the magnetic resonance... | 07/25/2006 |
| 6927572 | Method and apparatus for the compensation of dynamic error signals of a chopped hall sensor A method for compensation of dynamic error signals of a chopped Hall sensor that comprises at least one Hall sensor element comprising a plurality of terminal pairs for impressing an excitation current through the Hall sensor element and for taking a Hall voltage. T... | 08/09/2005 |
| 6853186 | Variable permeability magnetic field sensor and method A magnetic field sensor relies on variations in permeability of magnetic material to detect an external field. An exemplary magnetic field sensor includes a magnetic material and two or more conductors, at least one of which is connected to an electrical energy sour... | 02/08/2005 |
| 6801136 | Method of reducing noise in a borehole electromagnetic telemetry system A method for reducing noise in borehole electromagnetic telemetry systems in which a signal receiver is positioned at a distance from a drill site borehole at which the signal receiver couples strongly to a signal from a signal transmitter disposed in the borehole a... | 10/05/2004 |
| 6744249 | Method and instrument for measuring a magnetic field, a method for measuring a current waveform, and method for measuring an electric field A method and instrument for measuring, with a high spatial resolution, a magnetic or electric field that varies repeatedly at high speed. An electron beam is deflected by passage through a magnetic or electric field to be measured and is allowed to pass through a de... | 06/01/2004 |
| 6516281 | Scanning single electron transistor microscope for imaging ambient temperature objects A system, method, and computer program product are provided for scanning objects such as computer chips. A near-field scanning Single Electron Transistor (SET) is used to detect features of the object. In particular, the SET detects variations in an elect... | 02/04/2003 |
| 6344743 | Standing wave magnetometer The invention uniquely avails of Fourier analytical principles for determining the distribution of a magnetic field in a one-dimensional (linear), two-dimensional (planar) or three-dimensional (spatial) region of interest. According to many embodiments, i... | 02/05/2002 |
| 5811971 | Magnetic sensor and magnetic field sensing method using said magnetic sensor based on impedance changes of a high frequency excited conductor In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic senso... | 09/22/1998 |
| 5734267 | Magnetic head, magnetic recording method using the magnetic head, and magnetic field sensing method using the magnetic head based on impedance changes of a high frequency excited conductor In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic senso... | 03/31/1998 |
| 5705926 | Magnetic sensor and magnetic field sensing method of using same based on impedance changes of a high frequency supplied conductor In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic senso... | 01/06/1998 |
| 5691645 | Process for determining intrinsic magnetic permeability of elongated ferromagnetic elements and electromagnetic properties of composites using such elements A process for determining the intrinsic magnetic permeability of elongated ferromagnetic elements and the electromagnetic properties of composites using such elements are disclosed. According to the process, an annular core or torus is produced, which tor... | 11/25/1997 |
| 5666053 | Charged particle beam apparatus for measuring magnetic field A charged particle beam is transmitted through a specimen for producing an irregular pattern as a first image. Further, a magnetic field to be measured is arranged in space where a charged particle beam is passed between the specimen and an image plane th... | 09/09/1997 |
| 5572122 | Apparatus including a specimen tilt mechanism for measuring electromagnetic field distribution in the specimen using a focused electron beam An apparatus for measuring an electromagnetic field distribution using a focused electron beam can measure the electromagnetic field distribution in a specimen with high resolution and high reliability. A focused electron beam radiation system irradiates ... | 11/05/1996 |
| 5420100 | Planar squid magnetometer with inductively coupled microstrip resonator A planar SQUID magnetometer for detection and measurement of an applied magnetic flux is disclosed wherein a planar microwave-resonant element overlaps a Josephson device incorporated in a high-Tc superconducting, thin-film SQUID device, thereb... | 05/30/1995 |
| 5365391 | Magnetic reproducing head having a distributed-constant circuit type magnetic field detector A distributed-constant circuit type magnetic field detector which includes a magnetic member whose permeability varies with changes in a magnetic field applied thereto disposed at a point where a magnetic field is produced in a distributed-constant circui... | 11/15/1994 |
| 5315233 | Electromagnetic field analyzer for devices in which an electromagnetic field is present near a conductor and an electric charge moves in the electromagnetic field, and method of analyzing an electromagnetic field In order to take into account the effect of load resistance applied to an electromagnetic field in analyzing an electromagnetic wave oscillator, the present invention arranges a resistance equivalent to the load resistance in the analytical region, and co... | 05/24/1994 |
| 5111141 | Magnetic field measurement optimization apparatus using a charged particle beam A magnetic field measuring apparatus measures the magnetic field intensity of a magnetic field created by a sample magnetic head by passing a finely focussed charged particle beam through the magnetic field and by measuring the deflection of the charged p... | 05/05/1992 |
| 5075623 | Method for measuring three-dimensional spatial magnetic field distribution using algebraic reconstruction and convergence The present invention relates to a method for measuring three-dimensional spatial magnetic field distributions used particularly in measuring the magnetic field distribution in a small spatial region such as a leakage magnetic field of a magnetic head and... | 12/24/1991 |
| 4906607 | Sensor and method for indicating the presence of a low magnetic field using high critical temperature superconductor ceramic material to absorb electromagnetic energy A sensor and method for indicating the presence of a low magnetic field using high critical temperature superconductor ceramic material is comprised of a sensing element consisting essentially of the high critical temperature superconductor ceramic materi... | 03/06/1990 |
| 4803430 | Magnetic/electric field measuring device by means of an electron beam A magnetic/electric field measuring device is disclosed, which is provided with an electron beam generator for generating an electron beam finely focused; a sample table, on which a sample is placed; electron beam deflectors for sweeping the electron beam... | 02/07/1989 |
| 4465974 | Apparatus for measuring magnetic field characteristics of magnetic materials Bodies of a ferrimagnetic material are disposed within small cavities provided in a magnetometer. The magnetometer is initially calibrated utilizing an electromagnet to produce an applied magnetic field of either known field strength, HDC, or k... | 08/14/1984 |
| 4414509 | Low energy electron magnetometer using a monoenergetic electron beam A low energy electron beam magnetometer that utilizes near-monoenergetic electrons thereby reducing errors due to electron energy spread and electron nonuniform angular distribution. In a first embodiment of the invention (FIGS. 3 and 4) atoms in an atomi... | 11/08/1983 |
| 4341998 | Magnetostatic wave magnetometer A unidirectional magnetometer comprising at least two magnetostatic wave oscillators with resonators or delay lines, made in two portions in a magnetic material layer respectively subject to the field to be measured and to given magnetic fields of the sam... | 07/27/1982 |
| 4340861 | Method of measuring magnetic field characteristics of magnetic materials Bodies of a ferrimagnetic material are disposed within small cavities provided in a magnetometer. The magnetometer is initially calibrated utilizing an electromagnet to produce an applied magnetic field of either known field strength, HDC, or k... | 07/20/1982 |
