Class 365/110 - Electroluminescent and photoconductive

Subclass of Class 365 - Static information storage and retrieval
Definition: Subject matter wherein the memory element has both solid-state
No. of patents: 28
Last issue date: 03/25/2008

Number	Title	Issue Date
7348653	Resistive memory cell, method for forming the same and resistive memory array using the same A resistive memory cell employs a photoimageable switchable material, which is patternable by actinic irradiation and is reversibly switchable between distinguishable resistance states, as a memory element. Thus, the photoimageable switchable material is directly pa...	03/25/2008
7286728	Optical element and optical switch In an optical element aimed at readily and accurately controlling a refractive index of an electrooptic effect film, and at making the device adaptive to further downsizing, a voltage control unit controls the refractive index of light in an optical waveguide betwee...	10/23/2007
7240147	Memory decoder and data bus for burst page read Memory device is described that utilizes a reduced number of sense amplifiers to sense the data bits of a selected column page. The sense amplifiers are multiplexed and the read data values latched, allowing the sense amplifiers to sense the next set of data lines f...	07/03/2007
7124441	Method and apparatus for securely associating an optically readable memory with a user machine A CD-ROM has an obscurable section wherein exists a photosensitive mask material layer or constituent operative to alter the optical properties of areas subjected to prolonged exposure to the CD-ROM read laser radiation. Digital information stored on a CD-ROM is mad...	10/17/2006
6960663	Phenyl pyridine-iridium metal complex compounds for organic electroluminescent device, process for preparing the compounds, and organic electroluminescent device using the compounds The present invention relates to luminescence materials for an organic electroluminescent device (OELD), and particularly to phenyl pyridine-iridium metal complex compounds of formula (1), and preparation method thereof. In addition, the present invention relates to...	11/01/2005
6781178	Non-volatile solid state image pickup device and its drive A solid state image pickup device is provided which performs a new form of image signal reading operation. The image pickup deice comprises a semiconductor substrate and a plurality of pixels that are formed on the semiconductor substrate, with each pixel having a p...	08/24/2004
6744681	Fault-tolerant solid state memory A solid state memory device is fabricated by forming a level of the device; identifying defective areas in the level; and programming address logic of the level to avoid the defective areas in the level. ...	06/01/2004
6687149	Volumetric electro-optical recording In an optical memory device, an electroluminescent matrix has a plurality of individually electrically addressable electroluminescent cells, each having a stack of memory cells. The electroluminescent cells are addressable by applying a biased voltage thr...	02/03/2004
6218061	Ferroelectric charge-transport liquid crystal material There is provided a ferroelectric charge-transport liquid crystal material comprising a liquid crystal compound, the liquid crystal material having a carrier mobility of not less than 10-5 cm2 /Vs. There are further provided an image disp...	04/17/2001
6046925	Photochromic fluorescent proteins and optical memory storage devices based on fluorescent proteins Photochromic fluorescent protein moiety having two or more stable states having excitation or emission spectra that are shifted from one wavelength region to another wavelength region in the two states are described. The photochromic material switches bet...	04/04/2000
5717626	Photoelectric sensor, information recording system, and information recording and reproducing method In a photoelectric sensor that enables information to be recorded on an information recording medium at an intensity amplified to a level higher than that of a current induced by information exposure and allows conductivity to remain maintained by a conti...	02/10/1998
5581499	Micro information storage system A device for optically storing and retrieving information incorporating a cadmium fluoride crystal. Using focused ionizing radiation, patterns can be formed in the crystal by the creation of color centers and/or intrinsic luminescence quenched areas. The ...	12/03/1996
5424974	Optoelectric memories with photoconductive thin films Methods and apparatii are described for information storage in photoconductive film of single layer composition by irradiation of memory elements simultaneously with application of an electric field. Information is stored as trapped charge accumulations i...	06/13/1995
5412595	Opto-electronic memory system An opto-electronic memory system comprises a memory element (14) in which information is stored in an array of optically readable memory locations (17) and reading means comprising an electro-optic, e.g. liquid crystal, shutter arrangement (10) which is o...	05/02/1995
5327373	Optoelectronic memories with photoconductive thin films Methods and apparatii are described for information storage in photoconductive film of single layer composition by irradiation of memory elements simultaneously with application of an electric field. Information is stored as trapped charge accumulations i...	07/05/1994
5195082	Optical disk structures for electron trapping optical memory media An optical disk structure for an erasable optical disk for use with an erasable optical disk drive using electron trapping optical memory media is disclosed in which several distinct layers in addition to the electron trapping optical memory media are uti...	03/16/1993
5179533	Read/write optical memory An improved read/write optical disk is disclosed which is capable of being rewritten more than 106 times. The disk utilizes a storage medium in which data is stored by causing a localized region of the storage medium to assume one of two states...	01/12/1993
5160572	Optical memory device and apparatus for manufacturing the same An apparatus for manufacturing an optical memory device, which includes supplying rolls for continuously supplying a sheet-like substrate, a masking endless belt having a plurality of windows of size corresponding to the optical memory device, rolls for m...	11/03/1992
5038321	Eraseable electro-optic storage disk, method of and apparatus for recording and reading data therefor An erasable electro-optic storage disk for use in focused laser beam operated data handling systems comprises a semiconductor substrate with a storage layer arranged on top of it that is capable of trapping charge carriers. Electric contacts are connected...	08/06/1991
4701880	Optical system for recording/reproducing information by means of a dielectric breakdown effected by photoswitching of a bias-voltage An optical information recording/reproducing system comprises (A) a recording medium including a recording-bit producing layer, which is comprised of a fluorescent substance, and a photoconductive layer, both layers being interposed between conductive lay...	10/20/1987
4684598	Enhanced optically sensitive medium using organic charge transfer materials to provide reproducible thermal/optical erasure An enhanced optically sensitive medium is disclosed which uses an organic charge transfer complex as the switching material. The organic charge transfer complex includes at least one moiety in an oxidized state. An enhancement mechanism is taught which pr...	08/04/1987
4648074	Reference circuit with semiconductor memory array A reference circuit which is particularly useful in combination with a memory array in which data transistors are arranged in rows and columns and in which the conduction paths of the data transistors along each column are connected in series between a co...	03/03/1987
4392209	Randomly accessible memory display A randomly accessible memory display is disclosed wherein a latching memory panel can be placed in direct optical contact with the triggering electroluminescent panel having a similar matrix. Once the glowing light from the trigger panel shines on the pho...	07/05/1983
4300211	Data-storage devices and bistable circuits therefor A bistable circuit comprises a light-emitting diode connected in series with a phototransistor and so disposed as to illuminate the latter. When current is flowing--i.e. when the phototransistor conducts--light from the LED keeps the phototransistor condu...	11/10/1981
4245331	Memory pack A memory pack is provided having a random access memory connected between a positive power source terminal and a ground terminal, an addressing terminal coupled with the random access memory, and a data input/output terminal coupled with the random access...	01/13/1981
4221002	Electro-optically matrix-addressed electroluminescence display with memory It has been discovered for the practice of this disclosure that there is a threshold for switching with light an AC coupled electroluminescence (EL) device within the ƊV of the luminance-voltage hysteresis loop thereof. Practice of this disclosure provid...	09/02/1980
4159443	Electroluminescent optical devices Devices of the nature of magnetic bubble devices, but in which "bits" take the form of light spots, are described. A prototypical device takes the form of an electroluminescent, photoconducting film straddled by orthogonal arrays of insulated strip electr...	06/26/1979
4035774	Bistable electroluminescent memory and display device An electroluminescent memory and display device which may be switched from a first stable state to a second stable state in response to a relatively low switching voltage, and which may be maintained in said second stable state by a relatively low alterna...	07/12/1977

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Class 365/110 - Electroluminescent and photoconductive