Class / Patent application number | Description | Number of patent applications / Date published |
324249000 | Thin film magnetometers | 17 |
20090212770 | THIN FILM MAGNETIC SENSOR - The thin film magnetic sensor comprising a GMR film having a Giant Magneto-Resistance effect; and thin film yokes formed of a soft magnetic material connected electrically to both ends of the GMR film;
| 08-27-2009 |
20090243607 | Magnetic Sensor Design for Suppression of Barkhausen Noise - A semiconductor process and apparatus provide a high-performance magnetic field sensor from two differential sensor configurations ( | 10-01-2009 |
20100007343 | THIN FILM MAGNETIC FIELD SENSOR - A magnetic field effect sensor system having giant magneto-impedance elements. The elements may be elongated strips, and in proximity to and parallel with one another, and connected in series with connections or electrodes. The elements may have a regular shape without turns. They may have a single- or multi-layer structure. Some of the layers in the elements may contain a soft magnetic material, for instance, which form a closed loop for magnetic flux around a non-magnetic conductor. | 01-14-2010 |
20100045282 | THIN FILM LAMINATION, THIN FILM MAGNETIC SENSOR USING THE THIN FILM LAMINATION AND METHOD FOR MANUFACTURING THE THIN FILM LAMINATION - Relating to a thin film lamination and a thin film magnetic sensor using the thin film lamination and a method for manufacturing the thin film lamination that realizes a thin film conducting layer having high electron mobility and sheet resistance as an InAsSb operating layer. A thin film lamination is provided which is characterized by having an Al | 02-25-2010 |
20100148771 | MAGNETIC SENSOR ELEMENT AND DETECTION APPARATUS EQUIPPED WITH SAME - This invention provides a magnetic sensor element that can detect a detection target substance with high accuracy. The magnetic sensor element includes a multi-magnetic domain structure in which a plurality of magnetic domains extend in a row in one direction and in which the magnetic domains that are adjoining have easy magnetization axes in opposite directions to each other. The multi-magnetic domain structure has a surface region. Within the surface region, when counting from one end of the multi-magnetic domain structure, affinities for a magnetic particle or a substance that can be immobilized on the magnetic particle are mutually different at a first surface portion located at a boundary between a (2n−1)th (n is a natural number) magnetic domain and a (2n)th magnetic domain and a second surface portion located at a boundary between the (2n)th magnetic domain and a (2n+1)th magnetic domain. | 06-17-2010 |
20100271017 | THIN FILM FLUXGATE SENSOR - A fluxgate magnetic field sensor including an excitation current conductor ( | 10-28-2010 |
20110062955 | MULTIFERROIC ANTENNA/SENSOR - A multiferroic antenna and sensor where the sensor includes a multiferroic stack of multiple connected multiferroic layer-pairs, each multiferroic layer-pair comprising an alternating layer of a magnetostrictive material and a piezoelectric material bonded together enabling a high signal sensitivity, a magnetic field of an incident signal causing mechanical strain in the magnetostrictive material layers that strains adjacent piezoelectric material layers producing an electrical voltage in each multiferroic layer-pair proportional to the incident signal. An output of the multiferroic stack comprises the electrical voltage amplified proportional to a total number of multiple connected multiferroic layer-pairs in the multiferroic stack. | 03-17-2011 |
20110121826 | Two-Axis Magnetic Field Sensor with Multiple Pinning Directions - A fabrication process and apparatus provide a high-performance magnetic field sensor ( | 05-26-2011 |
20110163744 | CELLULAR TISSUE MAGNETIC SIGNAL DETECTING APPARATUS - A cellular tissue magnetic signal detecting device for detecting a magnetic signal locally generated in a cellular tissue including an excitable cell generating an electrical excitation, the cellular tissue magnetic signal detecting device includes: a magnetic sensor head operative to approach the cellular tissue within 1000 μm; and a magnetic detecting section detecting the magnetic signal with a resolution of 1000 μm or less at a noise level of 1 nT or less, and a response speed of 1 ms or less based on an output signal from the magnetic sensor head; the magnetic sensor head including magneto impedance sensor. | 07-07-2011 |
20120229131 | MAGNETIC FIELD SENSOR, AS WELL AS MAGNETIC FIELD MEASUREMENT METHOD, POWER MEASUREMENT DEVICE, AND POWER MEASUREMENT METHOD USING THE SAME - A magnetic field sensor includes: a magnetic thin film; a feeder comprising an input and output terminals configured to supply element current to the magnetic thin film; and a detector configured to detect a voltage between ends of the magnetic thin film in a direction perpendicular to a direction of the element current. The magnetic thin film is Rained symmetric about the direction of the element current. | 09-13-2012 |
20130099780 | MAGNETIC NANO-MULTILAYERS FOR MAGNETIC SENSORS AND MANUFACTURING METHOD THEREOF - The invention discloses a magnetic nano-multilayers structure and the method for making it. The multilayer film includes—sequentially from one end to the other end—a substrate, a bottom layer, a magnetic reference layer, a space layer, a magnetic detecting layer and a cap layer. The, up-stated structure is for convert the information of the rotation of the magnetic moment of the magnetic detecting layer into electrical signals. The magnetic detecting layer is of a pinning structure to react to the magnetic field under detection. On the other hand, the invention sandwiches an intervening layer between the AFM and the FM to mitigate the pinning effect from the exchange bias. Moreover, the thickness of the intervening layer is adjustable to control the pinning effect from the exchange bias. The controllability ensures that the magnetic moments of the magnetic reference layer and the magnetic detecting layer remain at right angles to each other when the external field is zero. The invention achieves a GMR or TMR magnetic sensor exhibiting a linear response and by tuning the thickness of the non-magnetic metallic layer, the sensitivity as well as the detecting range of the devices can be tuned easily. | 04-25-2013 |
20130265038 | MAGNETIC PROPORTIONAL CURRENT SENSOR - A magnetic proportional current sensor includes a magnetic-field detection bridge circuit constituted by four magnetoresistive elements having resistance values changed with application of an induced magnetic field from a current to be measured. Each of the four magnetoresistive elements includes a ferromagnetic pinned layer made up of a first ferromagnetic film and a second ferromagnetic film antiferromagnetically coupled to each other with an antiparallel coupling film interposed therebetween, a nonmagnetic intermediate layer, and a soft magnetic free layer. The first ferromagnetic film and the second ferromagnetic film have substantially equal Curie temperatures and have magnetization magnitudes with a substantially zero difference therebetween. The ferromagnetic pinned layers in the three magnetoresistive elements have a same magnetization direction, and the ferromagnetic pinned layer in the remaining one magnetoresistive element has a magnetization direction differing by 180° from the magnetization direction of the ferromagnetic pinned layers in the three magnetoresistive elements. | 10-10-2013 |
20130285651 | THREE AXIS MAGNETIC SENSOR DEVICE AND METHOD - A method and structure for a three-axis magnetic field sensing device is provided. The device includes a substrate, an IC layer, and preferably three magnetic field sensors coupled to the IC layer. A nickel-iron magnetic field concentrator is also provided. | 10-31-2013 |
20140002074 | MAGNETIC SENSOR CHIP AND MAGNETIC SENSOR | 01-02-2014 |
20150048819 | MAGNETIC SENSOR DEVICE - A magnetic sensor device includes a thin film first magnetic body provided with a magnetic path convergence/divergence section arranged on a predetermined axis, and at least a pair of wing-shaped sections extending from the magnetic path convergence/divergence section toward the opposite sides of said axis, a thin film second magnetic body provided with a magnetic path convergence/divergence section arranged on the predetermined axis to be spaced from the magnetic path convergence/divergence section of the first magnetic body, at least a pair of wing-shaped sections extending from this magnetic path convergence divergence toward the opposite sides of the axis, a first coil wound around the first magnetic body, a second coil wound around the second magnetic body, and a magnetoresistance effect element arranged between the magnetic path convergence/divergence section of the first magnetic body and the of the second magnetic body. | 02-19-2015 |
20150316591 | ELECTRICAL POWER MEASUREMENT DEVICE - An electrical power measurement device measures electrical power consumed in a circuit to be measured including a power source, a load, and a pair of electric wires connecting the power source with the load. The device includes a sensor unit including a plurality of the sensor parts including a magnetic element in which element terminals are formed at both ends of a magnetic film, a measurement resistor connected to the magnetic element in series, and a detecting means that detects a voltage change of the magnetic element and outputs a predetermined component; an addition means that adds the outputs of the detecting means of all of the sensor parts; and a fixing means that fixes the magnetic elements of the sensor parts, at equal distance positions from a virtual axis serving as a position reference at which the one electric wire is arranged, in a direction facing the virtual axis. | 11-05-2015 |
20150323615 | WIDE DYNAMIC RANGE MAGNETOMETER - A magnetometer | 11-12-2015 |