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6636433 |
Electronic device and recording method using the same
An electronic device of the present invention includes a memory core formed on an insulative substrate and implemented by a substance that performs, when a current flows therethrough,...
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6252797 |
Masked ROM and manufacturing process therefor
A masked ROM of a flat cell structure has a plurality of bit-line diffusion layers formed in parallel in one direction in a semiconductor. substrate, a plurality of word lines formed on the...
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4974201 |
Process for transferring bloch lines formed in a magnetic wall of a magnetic domain, and a magnetic memory apparatus for recording and reproduction of information by transferring bloch lines in utilizing said transferring process
A process for transferring Bloch lines formed in a magnetic wall of a magnetic domain and a magnetic memory apparatus for recording/reproducing information in utilizing Bloch lines formed in the...
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4974200 |
Method of transferring Bloch lines in the domain wall of a magnetic domain, and a magnetic memory using the method
A method of transferring Bloch lines present in a domain wall of a magnetic domain formed in a thin magnetic firm, includes cyclically forming asymmetrical potential wells along the domain wall in...
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4912673 |
Detection system for a magnetic bubble memory in hybrid technology
Magnetic bubble memory in hybrid technology using rows of chevron patterns. The memory detection system has an active detection zone (4) constituted by rows of chevrons, in order to stretch into...
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4881198 |
Duplicator in a magnetic bubble memory and process for duplicating bubbles therein
A duplicator in a magnetic bubble memory with non-implanted patterns, a process for realizing the duplicator and a serial - parallel magnetic bubble memory having at least one of the aforementioned...
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4837741 |
Magnetic bubble memory device
In a magnetic bubble memory device in which a major line and minor loops are constituted by ion-implanted tracks, a gate is constituted having two functions, i.e., having a replicate function and a...
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4811286 |
Magnetic bubble memory device
A magnetic bubble memory has a reading zone with thin detection elements, coated with an insulating layer which carries thick bubble propagation patterns of high magnetic permeability material, and...
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4791605 |
Hybrid junction for a magnetic bubble memory
A magnetic bubble memory, in which the PI junction between a first propagation track defined by deposited patterns and a second propagation track defined by the boundary between an implanted zone...
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4773054 |
Magnetic bubble memory with a hybrid junction
A bubble memory with a hybrid junction formed between a first propagation track defined by a boundary between an implanted area and a non-implanted area and a second propagation track defined by a...
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4748590 |
Swap gate in an ion-implanted bubble memory
In a magnetic bubble memory having a first system of aligned ion-implanted patterns and a second system of aligned ion-implanted patterns, a swap gate having a transfer conductor for transferring a...
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4745578 |
Magnetic bubble memory device
A magnetic bubble memory device comprises contiguous-disk ion-implanted magnetic bubble propagation tracks formed by implanting selectively ions in a magnetic layer which can hold magnetic bubbles....
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4744052 |
Hybrid magnetic bubble memory device
A hybrid magnetic bubble memory device includes, magnetic bubble propagation tracks formed of partial ion-implantation and bubble propagation tracks formed of a soft magnetic material pattern. At...
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4720814 |
Magnetic bubble generator for bubble memory in hybrid technology
The bubble memory comprises a magnetic layer in which the magnetic bubble can move under the action of a rotary field, a deposited pattern formed from a high permeability magnetic material and...
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4711694 |
Process for producing a layer having a high magnetic anisotropy in a ferrimagnetic garnet
Process for producing a ferrimagnetic garnet layer having a high magnetic anisotropy on an amagnetic substrate, wherein it comprises the stages of forming at least one ferrimagnetic garnet layer by...
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4642795 |
Thermomagnetic recording system
A region (21) having different magnetic energy from that of other portion is formed in a layer (1b) of soft magnetic material which has an easy axis of magnetization normal to the layer surface and...
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4621344 |
Magnetic bubble device
A magnetic bubble device has minor loops formed through ion implantation and used for storing information. As the density becomes higher, inside turn corner portions are formed on the minor loops....
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4617644 |
High-density magnetic bubble memory device
A high-density magnetic bubble memory device using magnetic bubbles having a diameter not larger than 2 μm comprises a magnetic layer capable of sustaining the bubbles therein, and a propagation...
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4592017 |
Magnetic bubble memory
A magnetic bubble memory is formed of a series of longitudinally oriented minor registers and at least one transversely oriented major access register, all of these registers having patterns with...
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4589094 |
Magnetic bubble device
A magnetic bubble device includes ion-implanted bubble propagation tracks of meandering cord-like configuration to assure improved bubble propagation characteristic. Amplitude of a region in which...
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4578651 |
Magnetooptical modulator
In a magnetic layer of a magnetooptical modulator having fixed magnetic single domain areas, the areas of the layer present between the single domain areas are made electrically conductive by...
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4568561 |
Process for producing ion implanted bubble device
A process for producing an ion implanted bubble device having bubble propagation tracks formed by implanting ions in a magnetic layer formed on a substrate. The process includes: implanting ions in...
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4561069 |
Magnetic bubble memory device gates
A magnetic bubble memory device comprises minor loops for the storage of information and a major loop operably associated with the minor loops through gates, the minor loops being defined by an...
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4556583 |
Method of fabricating magnetic bubble memory device
A method of fabricating a magnetic bubble memory device is disclosed in which a desired portion of a surface region in a magnetic bubble film for magnetic bubbles is implanted with hydrogen ions...
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4546452 |
Magnetic bubble device
A magnetic bubble device in which a first propagation path having a cyclic shape formed by selectively implanting ions into a magnetic film capable of holding magnetic bubbles and a second...
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4535422 |
Magnetic bubble memory with unimplanted motifs
The invention relates to a magnetic bubble memory having a first layer of monocrystalline magnetic material with at least one crystallographic axis having the property of being aplanar easy...
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4528645 |
Magnetic bubble memory device
A magnetic bubble memory device is disclosed in which a magnetic bubble propagation circuit for forming a minor loop is formed by ion implantation, and at least part of a major line or major loop...
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4525807 |
Magnetic bubble store with non-implanted motifs and method for controlling the same
A magnetic bubble store, using adjoining non-implanted motifs as bubble-propagating motifs, the store comprising 3n identical, electrically interconnected storage devices, n being a positive...
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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...
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4507755 |
Magnetic bubble memory device
A magnetic bubble memory device comprises a magnetic bubble propagation track formed by ion implantation. A region enclosed by the propagation track and lightly or shallowly implanted with ions on...
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4507754 |
Magnetic bubble propagation device
This device comprises an ionically implanted magnetic garnet layer, in which are defined non-implanted patterns and an electrically conductive layer superimposed on the garnet layer and insulated...
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4503517 |
Magnetic bubble memory device
A magnetic bubble memory device comprises an ion-implanted region for information storage formed in a surface of a magnetic material layer and a permalloy transfer path formed near an ion...
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4493054 |
Magnetic bubble store
A magnetic bubble store including at least two series of longitudinally oriented major shift registers and a rotating magnetic field for producing a displacement of the bubbles in the minor...
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4476152 |
Method for production of magnetic bubble memory device
Hydrogen ion is implanted twice or more at different acceleration voltages into desired portions of a magnetic film holding magnetic bubbles to form a magnetic bubble propagation path. This ensures...
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4462087 |
Ion-implanted bubble device
Ion-implanted bubble device comprises a magnetic layer in which bubble propagation paths are formed by ion-implantation. The bubble propagation path has an inside turn including a cusp of which the...
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4460412 |
Method of making magnetic bubble memory device by implanting hydrogen ions and annealing
A method of implanting a magnetic garnet film with ions is disclosed in which a covering film is provided on a monocrystalline magnetic garnet film for magnetic bubbles, and hydrogen ions are...
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4458335 |
Detector structure for ion-implanted contiguous-disk bubble devices
A detector structure for contiguous-disk bubble devices has a non-ionimplanted elongated bar, a hairpin conductor and a thin-film magneto-resistive element. The elongated bar is positioned in...
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4456975 |
Magnetic bubble memory device with guardrail
The magnetic bubble memory device according to this invention comprises an active magnetic bubble memory region formed by implanting ions into a layer of magnetic bubble material, a propagation...
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4453232 |
Device for generating magnetic bubbles with a high bit rate
A memory device utilizing magnetic bubbles which are driven by a rotary magnetic field on contiguous disc drive patterns. These disc patterns have mainly a first scale. Each drive pattern also...
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4453231 |
Magnetic bubble memory
A magnetic bubble memory has a first bubble propagation track formed with an ion-implanted pattern and a second bubble propagation track formed with permalloy members connected to each other to...
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4445200 |
Magnetic bubble memory detection method and device
A current stretch detection method for a bubble device in which bubbles are written at least one bit apart. A stretch pulse is applied to a stretch conductor so that when a bubble is detected, it...
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4441166 |
Passive annihilator for contiguous-disk bubble devices
A passive annihilator for ion-implanted contiguous-disk bubble devices has a deep cusp formed by two narrow, non-implanted regions. This annihilator has a maximum bias field margin and drive field...
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4434476 |
Magnetic bubble memory device and method for operating the same
A magnetic bubble memory device includes: a magnetic layer with a first region having an easy axis of magnetization extending in a certain direction and a second region surrounding the first region...
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4424577 |
Conductorless bubble domain switch
A magnetic bubble domain system including a planar layer of magnetic material in which magnetic bubble domains can be propagated; and first and second bubble domain guide structure coupled to the...
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4423489 |
Replicator for ion-implanted bubble domain devices using stretching action of charged wall
A replicator for an ion-implanted magnetic bubble domain device including a single level conductor bubble cutting element disposed between first and second spaced apart bubble domain guide...
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4415988 |
Magnetic bubble memory device
A magnetic bubble memory device comprises: a magnetic layer which has a first region having the easy axis of magnetization extending in a certain direction and a second region surrounding said...
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4414649 |
Gap tolerant merge element for contiguous-disk bubble devices
A gap tolerant merge element insensitive to crystallographic orientation has a first input track with an end portion substantially facing the end portion of a second input track to form a merge...
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4414647 |
Bubble domain replicator for contiguous-disk devices
A bubble domain replicator for ion-implanted contiguous disk devices has a cusp portion and a tip portion extending substantially away from the cusp portion so that the cusp forms part of a super...
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4412307 |
Magnetic bubble detector
A magnetic bubble detector for an ion-implanted bubble memory is achieved by using a permalloy detector element and two conductors. The conductors are operative first to stretch a bubble from one...
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4403305 |
Non-data reversing bubble transfer switch for contiguous disks
An improved non-data reversing one-way bubble transfer switch for contiguous disks is disclosed. The switch has a conductor arrangement in which one edge of the conductor is substantially...
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