Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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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 |
| 7212489 | Optical disc and method of protecting same An optical disc for storage and retrieval of digital data, and a system and method for protecting the optical disc is disclosed. The optical disc has projections or embossments on one or both surfaces. When the optical disc is placed on a substantially flat surface ... | 05/01/2007 |
| 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 |
| 6320683 | Optical information recording and reproducing apparatus using a volume holographic memory A description is provided of an optical information recording and reproducing apparatus which detachably supports a volume holographic memory formed of a photorefractive crystal. The apparatus includes a portion for supplying a coherent reference light be... | 11/20/2001 |
| 6222755 | Solid state holographic memory A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed holograms have centers at different locations. The apparatu... | 04/24/2001 |
| 6055174 | Solid state holographic memory A method and a compact apparatus to read shift-multiplexed holograms on a storage medium without the need for any lenses, and without the need for moving the storage medium. The shift-multiplexed holograms have centers at different locations. The apparatu... | 04/25/2000 |
| 5558884 | System for rapidly producing either integrated circuits on a substrate, Interconnections on a printed circuit board or rapidly performing lithography A system for rapidly producing an integrated circuit on a substrate using a curable liquid capable of solidification to form a photo-resist pattern corresponding to an artwork representation of interconnections when subjected to ultra-violet light energy ... | 09/24/1996 |
| 5448514 | Ultra high density dimer memory device A memory device having a storage medium including a substrate with a surface configuration having a plurality of asymmetric surface dimers, a device for writing data into the storage medium by modifying the configuration of the surface dimers, and a devic... | 09/05/1995 |
| 5301145 | Method and apparatus for recording and reading information, and an information recording element A method and apparatus for recording and reading information in a recording medium comprising a thin film of an organic compound having polymorphisms. The free energy of each polymorphism is different with each other. Information is recorded in the record... | 04/05/1994 |
| 5174943 | Method for production of three-dimensional objects by stereolithography A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impingi... | 12/29/1992 |
| 5132934 | Method and apparatus for storing digital information in the form of stored charges Method and apparatus for storing digital information in a dense memory structure. A semiconductor substrate has a thin insulating layer formed thereon. Over the thin insulating layer is formed a dielectric charge-storage layer. A piezoelectric bimorph can... | 07/21/1992 |
| 5097443 | Storage medium, storage method and stored information reading method Disclosed are medium and methods for storage and reading of stored information. The storage medium comprises an oxide layer having a plurality of pits and projections on the oxide layer surface. Information storage is achieved by applying voltage or light... | 03/17/1992 |
| 5088087 | Dual-metal reflective layer recordable/erasable optical media Recordable/erasable optical storage media are disclosed. The medium of the present invention generally comprises a rigid substrate, an expansion layer, a retention layer, and a dual-metal reflective layer. A single, active layer may be substituted for the... | 02/11/1992 |
| 5079758 | Single polymer layer recordable/erasable optical media Recordable/erasable optical storage media are disclosed. More particularly, it provides a method and apparatus for recording and erasing information on an optical storage medium. The medium of the present invention generally includes a rigid substrate and... | 01/07/1992 |
| 5032973 | Optical recording material containing photochromic compounds An optical recording material (21a) or a photochemical hole burning reaction. That is to say, informations are recorded in the recording material formed of a recording member in which molecules (D1) to (D3) having a property of chang... | 07/16/1991 |
| 5026146 | System for rapidly producing plastic parts A system for rapidly producing a plastic part from a curable liquid which solidifies when subjected to ultra-violet light energy operates with a processor and computer aided design software. The system includes a receptacle and a moving mechanism which is... | 06/25/1991 |
| 4990792 | Method for the application and reading of, and bottle with optically readable code marks What is described is a method of applying optically readable code marks (14) to the surface of bottles (10) of plastics material or glass by producing depressions in the surface by means of a laser (12) in such a manner that the bottom of each code mark (... | 02/05/1991 |
| 4978578 | Optical disk of polycarbonate An optical disk of the invention comprises a substrate of an aromatic polycarbonate obtained by polymerizing one or two monomers polymerized through carbonate linkages and a recording layer coated thereon, said recording layer being recordable and readabl... | 12/18/1990 |
| 4922462 | Reversible memory structure for optical reading and writing and which is capable of erasure In a reversible memory system, a pulsed laser beam generated from a laser unit is directed to a recording layer formed on a substrate 1. The recording layer essentially consists of a recording medium, for example, an iron-nickel alloy containing iron as a... | 05/01/1990 |
| 4831110 | Co-polycarbonate copolymer from 2,2-bis(4-hydroxy-3-tertiary butyl phenyl)propane and optical disk An aromatic polycarbonate copolymer is useful for a substrate of an optical disk and is composed of 1 to 99 mole percent of the unit of 2,2-bis(4-hydroxy-3-tertiary-butyl-phenyl)propane, 99 to 1 mole percent of the unit of a comonomer selected from the gr... | 05/16/1989 |
| 4811331 | Medium for recording digital information using an array of equally spaced micromirrors A digital recording medium formed of a thermoplastic substrate having an array of parallel rows of equally-spaced microscopic optically-alterable mirrors each supported by a mesa projecting from one surface. A layer of transparent plastic over the mirrors... | 03/07/1989 |
| 4807218 | System for recording digital information using a regular array of discrete micromirrors A digital recording medium formed of a thermoplastic substrate having a regular array of microscopic optically-alterable mirrors each by a mesa projecting from one surface. The parallel rows of the mirrors are the same distance apart as the mirrors in eac... | 02/21/1989 |
| 4803660 | Optical recording medium In an optical memory of phase transition type such that information is recorded or erased by reversibly changing the phase of a thin recording film between equilibrium phase and non-equilibrium phase in response to a laser beam, the memory is formed with ... | 02/07/1989 |
| 4780867 | Method for erasably recording data by viscoelastic shear deformation An erasable optical data storage medium has a polymer dual recording layer including an expansion layer bonded to a retention layer, each of the layers dyed to selectively absorb light in respective narrow wavelength bands. The retention layer has a glass... | 10/25/1988 |
| 4757472 | Electrophotographic optical memory system An optical memory system for storage and retrieval of digital data using a source of writing light in the visible light range and a separate source of near infrared, polarized reading light. The writing light is amplitude modulated by a signal containing ... | 07/12/1988 |
| 4701879 | Associative memory systems An associative (content addressable) optical memory system is comprised by a matched optical holographic filter (10, 18, 21, L1, L2) coupled to a digital computing system (14, 15, 16) having a memory (15, 16). In order to search the computing system memor... | 10/20/1987 |
| 4647947 | Optical protuberant bubble recording medium A disk-shaped optical type recording medium is disclosed which includes a transparent substrate and recording layer formed on the substrate. The recording layer in a single layer, which is made of a material capable of absorbing energy reaching it through... | 03/03/1987 |
| 4631704 | Methods and devices for charged beam accessible data storage Charged beam accessible data storage methods and devices involve a storage medium having an array of protrusions formed on a thermally insulative, substantially charged beam transparent base. The protrusions, made of high contrast material, can be selecti... | 12/23/1986 |
| 4621346 | Low power CMOS fuse circuit A fuse circuit as used in self-repairing memory devices or the like employs a CMOS inverter and a feedback transistor to provide zero static or standby current. The fuse is in series with the feedback transistor across the supply, and the CMOS inverter ha... | 11/04/1986 |
| 4599718 | Method for erasing a light recording medium A method for erasing a light recording medium comprising a thermoplastic resin having a number average molecular weight of 30,000 or less wherein a recording pit is refilled by using a light beam diameter greater than the pit diameter.... | 07/08/1986 |
| 4586165 | Thermo-optic information writing process and information support for implementing this process The invention relates to thermo-optic writing on an information support comprising a substrate on which there is deposited an organic sub-layer covered by a metal layer. The invention provides a writing process which consists in creating in the metal laye... | 04/29/1986 |
| 4577291 | Thermo-optical data writing process and data medium for performing this process The invention relates to thermo-optical inscription or writing on a data support comprising an organic intermediate layer (2) covered by a metal layer (3). The invention relates to a writing process consisting of creating in the metal layer 3 a plastic de... | 03/18/1986 |
| 4575822 | Method and means for data storage using tunnel current data readout Disclosed is a digital memory in which data is stored by establishing perturbations in a surface of a substrate and thereafter identifying the perturbations by establishing a tunnel electron current between the surface of the substrate and a movable probe... | 03/11/1986 |
| 4509145 | Electrically biased optical storage medium The use of a photoconducting material having specific characteristics in conjunction with a heat sensitive optical recording medium also having specific characteristics yields desirable properties. Specifically, through the use of this combination an opti... | 04/02/1985 |
| 4410968 | Method and apparatus for recording on a disk supported deformable metallic film Information is stored, using a relatively low-power light beam, by redistributing the material in a deformable film. In a disc configuration, positioning of the light beam is achieved by referencing to a previously recorded track. In a document storage an... | 10/18/1983 |
| 4405994 | Thermo-optic information writing process and information support for implementing this process Thermo-optic writing on an information support in which an organic sublayer covered by a metal layer is deposited on a substrate. A plastic deformation due to the thrust exerted by the localized swelling of the sub-layer is created in the metal layer to p... | 09/20/1983 |
| 4404656 | Thermo-optical data writing process and data medium for performing this process A thermo-optic data writing process and record in which focussed radiation is directed onto a data medium made up of a substrate, an organic layer directly deposited thereon with the interface therebetween being non-reflective and, on the organic layer, a... | 09/13/1983 |
| 4371954 | Reversible memory structure with thermo-optical writing and optical reading and process for writing and erasing said structure The invention relates to a reversible memory structure with thermo-optical inscription or writing and optical reading on a moving support. According to the invention, the memory structure deposited on a substrate (1) is constituted by a double layer (2 and 3).... | 02/01/1983 |
| 4360895 | Permanent memory structure with thermo-optical writing and optical reading and writing process in such a structure The invention relates to a permanent memory structure supported by a moving substrate. This substrate is formed by two metal layers (9, 10) vacuum-deposited on the relatively inexpansible substrate (1). One of the two metal layers is very expansible (9), ... | 11/23/1982 |
| 4336998 | Fingerprint transducer and reading apparatus The fingerprint transducer contains a sensing member having a sensing surface for receiving a fingerprint, a device for generating an electrostatic charge on the sensing surface and a heating device for heating the sensing surface up to a temperature whic... | 06/29/1982 |
