Matches 1 - 50 out of 83 1 2 >
Match Document Document Title
7378698 Magnetic tunnel junction and memory device including the same  
A magnetic tunnel junction device includes a magnetically programmable free magnetic layer. The free magnetic layer includes a lamination of at least two ferromagnetic layers and at least one...
7068530 Magnetoresistive effect element and memory device using the same  
One block SB serving as a fundamental unit constituting a data reading circuit is constituted by four memory cells MS 1 to MS 4 connected electrically in series, four FETs S 1 to S 4 connected...
6331944 Magnetic random access memory using a series tunnel element select mechanism  
A non-volatile memory array includes first and second pluralities of electrically conductive traces formed on a substrate. The second plurality of electrically conductive traces overlap first...
5757056 Multiple magnetic tunnel structures  
A double tunnel junction is disclosed that can be used as a magnetic sensor or as random access memories. The preferred embodiment comprises three magnetic metal materials separated by two...
5754465 No physical movement component record reproduce device and flat display device  
A non-physical movement component recording and reproducing device produces a pair of special waves with special waveforms that form a special stationary waveform. An electrically-conducting media...
5235569 Magnetooptical recording method, and apparatus used in the method  
A method of this invention is a non-overwritable method of recording information on a magnetooptical recording medium in which at least two layers including a first layer comprising a magnetic thin...
5103422 Three-dimensional magnetic memory medium and method for initial setting thereof  
A three-dimensional magnetic memory medium which comprises a substrate, a plurality of magnetic layers and a plurality of nonmagnetic layers. The magnetic layers and the nonmagnetic layers are...
4802066 Bed employed for light bathing  
A bed employed for use in light bathing. The bed comprises a transparent cloth stretched thereon and optical conductors arranged on the underside of the cloth. The optical conductors are arranged...
RE32545 Magnetic domain logic device  
A magnetic device comprising a first and a second plate of a magnetic material between which domains are situated. An interaction force occurs between the domains in the two plates. Stable domain...
4613955 Bias magnet temperature tracking of magnetic bubble memories  
Wide temperature range magnetic bubble memories are realized by using new compositions of rare earth garnets which require nonlinear bias field for operation over a given temperature range. The...
4584237 Multilayer magneto-optic device  
A method of manufacturing and using a magneto-optic device is provided in which a non-magnetic substrate material is utilized to support a laminate formed of at least two layers of magnetic...
4516222 Laminated magnetic bubble device  
Herein disclosed is a laminated magnetic bubble device of a multiple layer structure composed of at least one thin magnetic film having low coercive force and vertically oriented anisotropy which...
4471467 Magnetic domain device  
A magnetic device comprising at least one thin layer of a magnetizable material which has an easy axis of magnetization approximately normal to the surface of the layer. Magnetic domains are...
4470873 Method of manufacturing magnetic sensor comprising at least two magnetoresistive elements  
A magnetic sensor including first and second electromagnetic elements arranged one on the other is manufactured by depositing on a glass substrate a first magnetoresistive film of Fe-Ni permalloy,...
4415990 Complementary bi-level magnetic bubble propagation circuit  
A bi-level magnetic bubble domain propagation structure in which the domain guide structure is formed by a spatially periodic pattern of permalloy implemented on two discrete levels separated by a...
4360893 Magnetic devices and method of manufacture  
Magnetic devices exemplified by bubble devices depend upon functional magnetic layers initially produced by epitaxy and reduced to effectively thinned surface layers by ion implantation....
4358339 Method of fabrication of bubble domain device structures  
A method of fabricating a microelectronic circuit device on a substrate by forming a layer of electrically and thermally conductive material (13) on a surface of a substrate (10). Channels are then...
4357683 Magnetic bubble memory with ion-implanted layer  
In ion-implanted bubble memories where a patterned ion-implanted layer defines the propagation paths and the special functional elements, a uniform additional ion implant layer provides for a high...
4352862 Thermally stable magnetic film which resists hard bubbles  
Disclosed is a crystalline magnetic film having at least two rare-earth elements symmetrically disposed at lattice sites in the film's interior to there produce a magnetic moment perpendicular to...
4344153 Magnetic bubble memory device and method of fabricating the same  
A magnetic bubble memory device and a method of fabricating the device are disclosed in which a conductor pattern lies at least between a film for maintaining magnetic bubbles therein, and a soft...
4330848 Charged wall amorphous magnetic layers  
Amorphous ferrimagnetic layers are described with support stable and mobile magnetic charged walls. These layers can be used as drive layers in magnetic bubble domain devices, and are characterized...
4323984 Switching equipment using magnetic domains  
A small, highly reliable and inexpensive switching equipment, in which digital signals to be switched, stored as the presence or absence of magnetic domains in a first magnetic sheet or applied as...
4315214 Displacement sensor using a galvanomagnetic element positioned in a periodically inverted magnetic field  
Disclosed is a displacement sensor, comprising a pair of plates of magnetic bubble material disposed parallelly to each other across a space and a galvanomagnetic element disposed within the...
4299680 Method of fabricating magnetic bubble memory device having planar overlay pattern of magnetically soft material  
Method of fabricating a magnetic bubble memory device in which the magnetizable upper overlay pattern of magnetically soft material, e.g. permalloy, defining bubble propagation elements and bubble...
4283775 Contiguous disk bubble storage  
A bubble storage system using contiguous propagation elements is described using magnetically soft drive layers for movement of the bubble domains in a bubble domain film, in response to the...
4281396 Magnetic strip domain memory system  
A magnetic memory device in which information is stored in the form of strip domains in a layer of magnetic material supported by a layer of ferromagnetic material. The ferromagnetic material...
4218762 Device for close-packed magnetic domains  
A device for storing digital information in the form of magnetic domains including at least two ferrimagnetic layers on a substrate. The ferrimagnetic layers are separated by a compensation wall...
4207614 Magnetic bubble shift register store  
A magnetic bubble shift register store having a plate of magnetic material whose preferred magnetization direction extends transverse to the plane of the plate and in which bubbles are situated,...
4198692 Self-biased structure for magnetic bubble domain devices  
There is provided a self-biased structure which permits magnetic bubble domain device operation. The invention consists of three layers of material with a bias layer sandwiched between two bubble...
4187553 Pedestal bubble domain chip and processes for making same  
An improved magnetic bubble domain chip and processes for making the chip are described. The chip is comprised of a magnetic bubble domain film in which small bubble domains can be moved, and...
4172758 Magnetic bubble domain device fabrication technique  
A process for fabricating magnetic bubble domain devices having multiple layers. The process is a single high resolution mask process. A magnetizable layer, a conductive layer and at least one...
4171408 Device operating on the displacement of magnetic domain walls  
In a device operating on the displacement of magnetic domain walls and comprising a layer of magnetizable material having an easy axis of magnetization normal to the plane of the layer, in which...
4165410 Magnetic bubble devices with controlled temperature characteristics  
The temperature variation of the bubble collapse field of a class of garnet magnetic bubble layer materials is selected by selection of the ratio PbO to B 2 O 3 in the flux from which the layer...
4151602 Magnetic bubble multilayer arrangement  
A magnetic bubble device comprising a non-magnetic substrate layer, and a sequence of magnetic layers joined to each other and to the magnetic substrate layer, e.g. by epitaxial growing of...
4122538 Single wall domain, stripe domain memory plane  
A laminated, integral structure that forms a bubble memory plane for the generation, storage and transfer of single wall domains, bubble domains or bubbles is disclosed. The memory plane is formed...
4117544 Magnetic single-wall domain bias field control arrangement  
A bias field control arrangement for correcting the bias field in accordance with stability range variations in magnetic domain thin film layers. A thin film layer is provided auxiliary to the...
4101972 Bubble domain propagation using oscillating stripe domains  
Disclosed is an apparatus for and a method of propagating bubble domains along fixed guidance channel forming stripe domains by capturing them in moveable stripe domains and then moving the...
4095279 Orthogonal potential well matrix and amplitude modulated bias field for bubble domain propagation  
An apparatus for and a method of propagating bubble domains is disclosed. The apparatus includes a memory plane that is comprised of a non-magnetic support member upon which are formed a bubble...
4091459 Store comprising drivable domains  
A storage device comprising a main magnetic field generator, a rotary magnetic field generator and a number of plates of magnetic material which are arranged transverse to the main magnetic field...
4070658 Ion implanted bubble propagation structure  
An improved ion implanted propagation structure for movement of magnetic bubble domains in a storage medium which comprises an additional magnetic layer capable of ion implantation in combination...
4059828 Bubble lattice file structure  
In an improved bubble lattice file (BLF) structure, two adjacent layers of magnetic bubble domain material are utilized to provide separate media for supporting carrier bubbles or coded bubbles....
4052711 Bubble lattice file using movable fixed lattice  
A lattice file using magnetic bubble domains which are arranged in a regular lattice which is moved or expanded to allow different operations, without requiring the need for bubble domains to be...
4052709 Accessing information in a lattice array by dislocation punching  
A string of bubble domains having a length equal to that of a column portion to be extracted from a bubble domain lattice array is laterally punched into the input side of the array at the height...
4052707 Magnetic device having domains of two different sizes in a single layer  
A magnetic device comprising at least one thin layer of a magnetizable material having a preferred direction of magnetization which is approximately perpendicular to the surface of the layer in...
4012724 Method of improving the operation of a single wall domain memory system  
A method of and an apparatus for improving the selective positioning of single wall domains or bubbles in a memory system is disclosed. The method includes the use of slotted intersecting digit and...
4001793 Magnetic bubble domain composite with hard bubble suppression  
A bubble domain composite for suppressing the formation of hard bubble domains comprises a magnetic garnet bubble domain layer, a non-magnetic substrate for supporting the bubble domain layer, and...
3996571 Double layer bubble domain lattice system  
A bubble domain lattice system in which information exists as the presence and absence of bubble domains. A lattice exists in a conveyor layer and lattice bubble domains are coupled...
3982234 Hard-magnetic film overlay apparatus and method for magnetic mobile domain control  
Stationary patterns of magnetic domains in a film layer of magnetically hard material define local field gradients for movement control of single-wall domains located in a contiguous sheet of...
3979737 Bistable magnetic bubble domain devices  
A magnetic film is incorporated in a device suitable for use with a computer; the film is capable of supporting magnetic bubble domains of two different sizes corresponding to stable hysteresis...
3971887 Dynamic magnetic bubble display system  
A dynamic pattern display and optical data processing system is provided including magnetic bubble devices which may be operated in real-time to produce a multi-tone (gray scale) two dimensional...
Matches 1 - 50 out of 83 1 2 >