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| Number | Title | Issue Date |
| 7342276 | Method and apparatus utilizing monocrystalline insulator A semiconductor device, including: a semiconductor material; a conductive element; and a substantially monocrystalline insulator disposed between the semiconductor material and the conductive eleme... | 03/11/2008 |
| 5436861 | Vertical bloch line memory A new read gate design for the vertical Bloch line (VBL) memory is disclosed which offers larger operating margin than the existing read gate designs. In the existing read gate designs, a current is applied to all the stripes. The stripes that contain a V... | 07/25/1995 |
| 5327371 | Information recording and reproducing apparatus An information recording and reproducing apparatus which has a memory portion which uses the Bloch lines occurring at the magnetic domain walls at the periphery of magnetic domains present in magnetic garnet films as the information carrier, a drive porti... | 07/05/1994 |
| 5309388 | Solid state magnetic memory device In a solid state magnetic memory device wherein the information storing region of a Bloch line memory device using Bloch lines generated in magnetic domain walls as information carriers is covered with a magnetic material film having stripe domains perpen... | 05/03/1994 |
| 5260891 | Bloch line magnetic memory A Bloch line magnetic memory has a magnetic film of thickness h located on a substrate and includes Bloch lines of width .LAMBDA.o. The magnetic film satisfies the condition (1) h/.LAMBDA.o | 11/09/1993 |
| 5229961 | Crosstie random access memory element having associated read/write circuitry A nonvolatile random access memory array is formed by permalloy thin films patterned into "wiggle" shapes. Address lines for reading and/or writing into the memory cells are operatively connected to associated circuitry such that writing at a selected loc... | 07/20/1993 |
| 5179532 | Transfering bloch lines using perpendicular and in-plane pulse magnetic fields A Bloch line transferring method or system comprises a step of transferring only a first Bloch line of the Bloch line pair in the magnetic wall in a predetermined direction, and a step of transferring a second Bloch line of the Bloch line pair in the pred... | 01/12/1993 |
| 5172336 | Method of transferring Bloch lines A transfer method for transferring Bloch lines present in the magnetic wall of a magnetic section formed in a magnetic thin film along the magnetic wall includes the steps of distributing a predetermined soft magnetic material layer pattern on the magneti... | 12/15/1992 |
| 5138571 | Method for transferring a bloch line Method for transferring the Bloch line present in the magnetic wall of the magnetic domain formed in the magnetic thin film, along the magnetic wall is characterized by the steps of forming a predetermined stress distribution along the magnetic wall in th... | 08/11/1992 |
| 5105383 | Method for detecting the presence of Bloch lines in a magnetic wall In a method or device for detecting the presence and/or absence of a Bloch line in a magnetic wall of a magnetic domain formed in a thin magnetic film, a magnetic field parallel to the plane of the thin magnetic film is applied to the magnetic domain to c... | 04/14/1992 |
| 5050122 | Bloch line memory device and method for operating same There are disclosed techniques concerning reading out Bloch lines in a Bloch line memory device, where pairs of Bloch lines are used as an information carrier. The pairs of Bloch lines are transferred to the head portion of a stripe magnetic domain and an... | 09/17/1991 |
| 5047978 | Bloch line memory device A Bloch line read/write memory in which a Bloch line or lines near the end portion of a stripe domain are moved in a predetermined direction to turn the direction of a wall magnetization at the end portion to a right turn direction as viewed form the surf... | 09/10/1991 |
| 5036485 | Bloch-line memory device capable of stably generating a magnetic domain In a magnetic medium used in a Bloch-line memory device and having a first groove and a pair of second grooves deeper than the first groove with the first groove formed to leave a plateau extended on a principal surface in a predetermined direction betwee... | 07/30/1991 |
| 5031140 | Bloch-line memory device for stably reading information A Bloch-line memory device comprises a magnetic medium including a read-out area and a potential barrier portion. The read-out area is on the principal surface of the magnetic medium and the potential barrier portion is located between the read-out area a... | 07/09/1991 |
| 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 order to locate the Bloch lines at predetermined positions... | 11/27/1990 |
| 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 magnetic wall of the magnetic domain as a information carrie... | 11/27/1990 |
| 4949304 | Bloch line memory device In a Bloch line memory device, information corresponds to the presence or absence of a Bloch line pair present in the magnetic wall of a stripe magnetic domain. Reading of information is effected by converting the presence and absence of a Bloch line pair... | 08/14/1990 |
| 4926377 | Magnetic memory device using a deflected in-plane magnetic field In a magnetic memory device for use in selectively carrying out a write-in operation and a readout operation of a pair of vertical Bloch lines as an information carrier in a domain wall of a stripe domain extended along a longitudinal direction, a deflect... | 05/15/1990 |
| 4884236 | Bloch line memory device A Bloch line memory device comprises stripe magnetic domains in a magnetic film for holding magnetic bubble domains. A pair of Bloch lines is stored as an information carrier in a magnetic wall constructing the stripe magnetic domain. A longitudinal direc... | 11/28/1989 |
| 4845671 | Bloch line memory device A Bloch line memory device and a method of erasing information in which, for erasure of a Bloch line pair representative of one bit of information and located in one end portion of one stripe domain, the stripe domain is stretched by decreasing the intens... | 07/04/1989 |
| 4831584 | Bloch line memory device A Bloch line memory device in which a stripe magnetic domain is formed within a magnetic film for holding magnetic bubble domains, and Bloch line pairs are stored as information carriers within a magnetic wall defining the magnetic domain. In order to wri... | 05/16/1989 |
| 4731752 | Bloch line memory device with stripe domain stabilizing means In a Bloch-line memory wherein a magnetic film comprises a first and a second major line and a minor loop portion defined between the first and second major lines, successive presence and absence of magnetic bubbles being transferred along the first major... | 03/15/1988 |
| 4692899 | Propagational control for Vertical Bloch Line memories Stabilization of the propagation of storage bits around the storage loops of a Vertical Bloch Line (VBL) memory is obtained by the vapor-deposition of a nickel-iron film over the VBL structure. The film has a composition range of 65-90% nickel and a thick... | 09/08/1987 |
| 4583200 | Magnetic memory device capable of memorizing information in a stripe domain in the form of a vertical Bloch line pair In a magnetic memory device comprising a magnetic medium (21) having an easy axis of magnetization orthogonal to a principal surface of the medium, the medium has at least one stripe domain (20) surrounded by a domain wall which memorizes information in t... | 04/15/1986 |
| 4541072 | Magnetic bubble display device The orthogonal conductors in a magnetic bubble display device each extend in only one direction across the magnetic medium and carry current in only one direction. Sector shaped recesses are formed between conductors for holding the bubbles.... | 09/10/1985 |
| 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 can allow easy generation and erasure of a magnetic bubble,... | 05/07/1985 |
| 4334291 | Ion-implanted magnetic bubble memory with domain confinement rails Operating margins for major-minor magnetic bubble memories are improved by use of protective rails between minor loops to prevent loss of information due to stripout. The rails, as are the propagation paths, are defined by unimplanted regions in an otherw... | 06/08/1982 |
| 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 magnetic field formed in the aforementioned space and adapted to... | 02/09/1982 |
| 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 contains a pattern of alternately magnetized strips for sustain... | 07/28/1981 |
| 4229248 | Process for forming bonding pads on magnetic bubble devices A process for thickening the relatively thin bonding pads of a single wall magnetic domain (bubble) device is disclosed. The process is particularly suited for thickening the pads defined by a buried metal layer, such as the conductive layer often dispose... | 10/21/1980 |
| 4164029 | Apparatus for high density bubble storage A magnetic bubble storage system and a method for making it using only two masking steps, one of which is critical. In a preferred embodiment, the storage regions are comprised of ion implanted propagation elements which can be contiguous with one another... | 08/07/1979 |
| 4151599 | Magnetic bubble display units In a display unit utilizing magnetic bubbles, selective extinction of the magnetic bubbles in a matrix results in a pattern of letters and/or images which are combinations of the magnetic bubbles as picture elements. The present display unit has in-plane ... | 04/24/1979 |
| 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 crystalline layers, whereby at least two of the magnetic layers ma... | 04/24/1979 |
| 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 of a non-magnetic gadolinium gallium garnet (GGG) support ... | 10/24/1978 |
| 4112503 | Stripe domain propagation using contiguous bicore disk file structure An apparatus for and a method of moving stripe domains in a direction transverse their length is disclosed. The apparatus includes a layer of magnetizable material in which stripe domains are capable of being generated, sustained and moved. Formed upon th... | 09/05/1978 |
| 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 capturing moveable stripe domains. The memory plane comprises a n... | 07/18/1978 |
| 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 domain layer and at least one stripe domain layer. The stripe... | 06/13/1978 |
| 4079461 | Gap tolerant bubble domain propagation circuits There is disclosed an improved circuit element or structure for use in propagation of magnetic bubble domains. The improved circuit element permits a more desirable gap-to-period ratio than conventional element patterns. The improved circuit element provi... | 03/14/1978 |
| 4054866 | Conversion element and system utilizing magnetic bubbles A conversion element and system comprising a magnetic thin plate capable of having magnetic bubbles formed therein; and at least two conductive segment patterns disposed adjacent the magnetic thin plate, each pattern comprising a plurality of conductive s... | 10/18/1977 |
| 4040020 | Bubble lattice device A device adapted for use in a low externally applied magnetic field, for example, 15 Oe, with a bubble lattice system is described. The device has a Y shaped channel in which bubbles are propagated between a bubble lattice column and either detector means... | 08/02/1977 |
