|
Match
|
Document |
Document Title |
|
|
5729137 |
Magnetic field sensors individualized field reducers
A magnetic field sensor having a plurality of interconnected magnetoresistive magnetic field sensing structures with at least one thereof having a permeable material mass adjacent thereto to shield...
|
|
|
5719494 |
Sensor assembly
A sensor assembly for measuring current I o is disclosed. The sensor assembly includes four magnetoresistive resistors (1, 2, 3, 4) arranged to form a Wheatstone bridge. The bridge is disposed...
|
|
|
5712565 |
MR sensor having thick active region between two thinner inactive MR regions topped with respective permanent magnets
A magnetoresistive sensor (10) having permanent magnet stabilization includes a magnetoresistive layer (12), at least one permanent magnet (14a or 14b), and first and second current contacts (16a...
|
|
|
5712612 |
Tunneling ferrimagnetic magnetoresistive sensor
A tunneling ferrimagnetic magnetoresistive sensor that has a ΔR/R greater than that of known magnetoresistive sensors, and that, with appropriate electrode materials, can undergo a substantial...
|
|
|
5708407 |
Current sensor comprising a magnetoresistive tape and its production process
The invention relates to a current sensor or transducer (10) for measuring the current flowing through an electric conductor (11), comprising a magnetoresistive tape (12) surrounding the conductor...
|
|
|
5708358 |
Spin valve magnetoresistive transducers having permanent magnets
A spin valve magnetoresistive sensor includes a substrate and a layered structure formed on the substrate. The layered structure includes a pair of thin film layers of ferromagnetic material...
|
|
|
5703485 |
Method and test structure for determining magnetic domain switching field when fabricating patterned exchange biased magnetoresistive (MR) head
A method for determining through a test structure a longitudinal magnetic exchange field within a patterned exchange biased magnetoresistive (MR) sensor element. To practice the method, there is...
|
|
|
5698335 |
Magnetoresistance effect element having bias films
It is an object of the present invention to provide a magnetoresistance effect element which has a film with a spin valve structure or an artificial lattice film having good soft magnetic...
|
|
|
5699213 |
Magnetoresistive head having a magnetic domain control layer
A magnetoresistive head includes a magnetoresistive film and a magnetic domain control layer, formed by a paramagnetic film which is provided in contact with the magnetoresistive film and an...
|
|
|
5695864 |
Electronic device using magnetic components
In the present invention, electrons flow through a free or excitable magnet, or reflect from it, to make its magnetization respond. To accomplish this, the spin vectors of the flowing electrons are...
|
|
|
5696445 |
Method and apparatus for testing the resistive properties of magneto resistive materials using a time variable magnetic field
A tester for measuring the resistance of magnetoresistive heads as a function of the magnetic field applied to the heads. The tester applies a time varying magnetic field to the magnetoresistive...
|
|
|
5696447 |
Magneto-resistive magnetic field sensor with pole pieces and increased sensitivity
The invention concerns a magneto-resistive magnetic sensor comprising a magneto-resistive element, the resistance of which varies as a function of the applied magnetic field and two pole pieces...
|
|
|
5689185 |
Compact device for measuring magnetic fields having magnetoresistors and an auxiliary magnetic field generator
A device for measuring magnetic fields comprises an assembly of at least two magnetic field sensors each of which comprises a number of magnetoresistive sensor elements situated in one plane and...
|
|
|
5686838 |
Magnetoresistive sensor having at least a layer system and a plurality of measuring contacts disposed thereon, and a method of producing the sensor
A magnetoresistive sensor includes at least one measuring layer having a magnetization M M in the plane of the layer, and a bias layer having a fixed magnetization M B in the plane of the layer,...
|
|
|
5686837 |
Magnetic field sensor and instrument comprising such a sensor
A magnetic field sensor is composed of layered magnetoresistive elements which are arranged in a bridge on a substrate. The magnetoresistive elements comprise two ferromagnetic layers which exhibit...
|
|
|
5684397 |
Magnetoresistive sensor
A first magnetoresistive (MR) element of an MR element portion of the MR sensor has line patterns of a ferromagnetic thin film, that are arranged in parallel to each other, and connecting patterns...
|
|
|
5682284 |
Read sensitivity function for barberpole bias design magnetoresistive sensor having curved current contacts
An improved magnetoresistive head design including a front curved sense contact, a back curved sense contact and a lip extension forming an elliptical sensor region is disclosed. Current flows...
|
|
|
5677625 |
Giant magnetoresistance, production process and application to a magnetic sensor
A magnetoresistance having three ferromagnetic layers (10, 20, 30) separated by non-magnetic layers (15, 25). The first ferromagnetic layer (10) has a magnetization orientable by a measuring...
|
|
|
5668473 |
Magnetoresistive sensor including shortened measuring layers
A magnetoresistive sensor may include a layer system having at least one measuring layer exhibiting a magnetization in the plane of the layer. The magnetization depends inversely in at least one...
|
|
|
5667879 |
TaN/NiFe/TaN anisotropic magnetic sensor element
A stack of two refractory nitride layers and a magnetoresistive layer are used to facilitate electrical connection between components of a sensor. The stack of tantalum nitride and nickel iron...
|
|
|
5663644 |
Magnetoresistive sensor having a bias field applied at approximately 56°
The present invention relates to a magnetic signal detection apparatus utilizing a ferromagnetic thin film magneto-resistive element which produces a maximum output of high linearity with an...
|
|
|
5661449 |
Magnetic multilayer film, method for making, and magnetoresistance device
A magnetic multilayer film having magnetoresistance (MR) is prepared by alternately depositing first and second magnetic layers while interposing a non-magnetic metal layer therebetween. The number...
|
|
|
5654566 |
Magnetic spin injected field effect transistor and method of operation
A new hybrid magnetic spin injected-FET structure can be used as a memory element for the nonvolatile storage of digital information, as well as in other environments, including for example logic...
|
|
|
5652445 |
Hybrid hall effect device and method of operation
A modified Hall Effect device can be used as a memory element for the nonvolatile storage of digital information. The novel device includes a ferromagnetic layer that covers a portion of a Hall...
|
|
|
5650721 |
Device for detecting the angular position of an object using a magnetoresistive sensor
A device for determining the angular position of an object uses an MR sensor which is set up in a magnetic field, where one magnetic field component (H or H g ) and a reference axis of the MR...
|
|
|
5650887 |
System for resetting sensor magnetization in a spin valve magnetoresistive sensor
Sensors based on the giant magnetoresistance effect, specifically "spin valve" (SV) magnetoresistive sensors, have applications as external magnetic field sensors and as read heads in magnetic...
|
|
|
5648885 |
Giant magnetoresistive effect sensor, particularly having a multilayered magnetic thin film layer
A spin-valve read head of the giant magnetoresistive type in a data storage system has at least one magnetic thin film layer comprising a plurality of magnetic thinner film layers of ferromagnetic...
|
|
|
5646805 |
Magnetoresistive read transducer with partially abutted junctions
A magnetoresistive transducer is formed with a trilayer structure including a soft adjacent magnetic layer (SAL), a spacer layer and a magnetoresistive (MR) sensor element. The SAL and part of the...
|
|
|
5644230 |
Miniature magnetometer and flexible circuit
Miniature magnetometer apparatus for use with external equipment in determining a position and orientation of a device located within a magnetic field includes an elongated flexible circuit for...
|
|
|
5640089 |
Method and apparatus for surface roughness detection - using a magnetoresistive element
A magnetoresistive element is used to detect a surface roughness of an object, such as a magnetic recording medium, a photomask blank, a semiconductor wafer, and is assembled into a reproducing...
|
|
|
5635835 |
Self biased multilayer magnetoresistance sensor
A self-bias sensor including a current source, a resistance measuring device and a sensor element sensitive to a magnetic field to be measured. The sensor element receives from the current source a...
|
|
|
5633770 |
Digital output magnetoresistive (DOMR) head and methods associated therewith
A digital output magnetoresistive ("DOMR") head for magnetic playback comprising one or more "pinned" magnetic layers having magnetic polar direction which does not rotate under an external field...
|
|
|
5629549 |
Magnetic spin transistor device, logic gate & method of operation
A new magnetic spin transistor is provided. This spin transistor can be used as a memory element or logic gate, such as an OR, AND, NOT, NOR and NAND gate. The state of the magnetic spin transistor...
|
|
|
5627466 |
Position measuring device having a sensor for sensing the distance between a scanning unit and a scale
A position measuring device having a sensor, the output signal Sd of which is a function of the distance between a graduation and a scanning unit. To render the distance-dependent signal...
|
|
|
5621377 |
Sensor assembly for measuring current as a function of magnetic field gradient
To measure magnetic field gradients is difficult because sensor elements available for this have only a limited linearity range due to their sensitivity which is strongly dependent on the...
|
|
|
5621320 |
Magnetoresistance type sensor device for detecting change of magnetic field
A magnetoresistance type sensor device for detecting an angle or strength of a magnetic field applied thereto includes first to fourth magnetoresistance elements interconnected so as to constitute...
|
|
|
5620784 |
Magnetoresistive film
A magnetoresistive film includes, arranged in the following order, a substrate, a first ferromagnetic layer, a non-magnetic metal film, and a second ferromagnetic layer which has a coercive force...
|
|
|
5619134 |
Physical quantity detecting device using interpolation to provide highly precise and accurate measurements
In a physical quantity detecting device for converting a physical quantity into changes in the cycle of a pulse signal and for amplifying the cycle to convert it into digital data, detecting...
|
|
|
5618738 |
Manufacturing method for magnetoresistance elements
A method of manufacturing a magnetoresistance element that can accurately sort out truely defective products from apparently defective products due to the manufacturing processes. Manufacturing...
|
|
|
5617071 |
Magnetoresistive structure comprising ferromagnetic thin films and intermediate alloy layer having magnetic concentrator and shielding permeable masses
A magnetoresistive layered structure having on a substrate two or more magnetoresistive, anisotropic ferromagnetic thin-films each two of which are separated by an intermediate layer on a substrate...
|
|
|
5604651 |
Read head with 4-point magnetoresistive sensing
A read head assembly senses data recorded on tracks of a moving magnetic media. The read head includes a magnetoresistive sensor element for sensing data, and a circuit connected to the sensor...
|
|
|
5602471 |
Angle sensor including angularly spaced sensor units
An angle sensor includes at least two angularly spaced sensor units which measure in a contactless manner and whose sensor voltages are similar but angularly shifted sinusoidal functions (sensor...
|
|
|
5596272 |
Magnetic sensor with a beveled permanent magnet
A magnetic sensor is provided with a permanent magnet that has a beveled surface at one end of the magnet. The beveled surface intersects a first pole face at a preselected angle. The permanent...
|
|
|
5595830 |
Magnetoresistive structure with alloy layer having two substantially immiscible components
A magnetoresistive layered structure having a pair of magnetoresistive, anisotropic ferromagnetic thin-films separated by an intermediate layer on a substrate of less than 50 Å thickness formed...
|
|
|
5592082 |
Magnetic sensor with permanent magnet bias layers
A magnetic sensor includes a magnetoresistive effect layer (MR layer), on which permanent magnet layers are superimposed, the permanent magnet layers having slanted edges forming an angle φ with...
|
|
|
5589768 |
Magnetoresistance-effect magnetic sensor of the temperature compensating type
A magnetoresistance-effect magnetic sensor provides an effective output even in atmospheres higher in temperature than those relevant to prior art sensors. The invented sensor has...
|
|
|
5585986 |
Digital magnetoresistive sensor based on the giant magnetoresistance effect
A magnetoresistive (MR) sensor based on the giant magnetoresistance (GMR) effect provides a digital output signal. The multilayer stack of alternating ferromagnetic layers and nonferromagnetic...
|
|
|
5585985 |
Magneto-resistive head including a film of hard magnetic material
A hard magnetic thin film magnetized in one direction is disposed on or in the vicinity of a magneto-resistive element upon which inclined electrodes are formed. A magnetic field from the hard...
|
|
|
5583436 |
Miniature magnetic field sensor with compact magnetization coil
A magnetic field sensor includes a number of magnetoresistive sensor elements situated in one plane, and which have the same privileged directions of magnetization, and a magnetization coil...
|
|
|
5583725 |
Spin valve magnetoresistive sensor with self-pinned laminated layer and magnetic recording system using the sensor
A magnetic recording system uses an improved spin valve magnetoresistive (SVMR) sensor. The SVMR sensor has a self-pinned laminated layer as the pinned ferromagnetic layer in place of the...
|