Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6977137 | Direct writing of optical devices in silica-based glass using femtosecond pulse lasers The invention relates to methods of writing a light-guiding structure in a bulk glass substrate. The bulk glass substrate is preferably made from a soft silica-based material having an annealing point less than about 1380° K. A pulsed laser beam is focused within t... | 12/20/2005 |
| 6930763 | Three dimensional sensor laser noise reduction method A method for improving the accuracy of measurements made in non-contact gauging an object utilizing a detector to observe a laser line projected onto a surface of the object. A combination of detector lens f-number adjustments, surface scatter statistics, and laser ... | 08/16/2005 |
| 5483877 | Cassette stacker/stamper The described machine comprises a cassette infeed conveyor; stamper means for stamping incoming cassettes with an identifying code; first collection means for receiving cassettes as they are removed from the infeed conveyor; and transfer means for transfe... | 01/16/1996 |
| 4975310 | Substrate for information recording medium and production method thereof A substrate for an information recording medium having an uneven preformat on its face side and a specular surface on its rear side is characterized by having a degree of crosslinking which is higher at the specular surface than the face side having the u... | 12/04/1990 |
| 4900649 | Method of producing an optical recording medium and an optical recording medium produced thereby A method of producing an optical recording medium according to the present invention includes the steps of forming a recording film on a transparent substrate, recording signals in the form of perforated pit rows on the recording film by a laser beam, and... | 02/13/1990 |
| 4822973 | Composite plastic with laser altered internal material properties An identification mark which remains permanently readable is applied by means of a laser beam through a lightwave window of plastics material to a plastics layer situated behind that window.... | 04/18/1989 |
| 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 |
| 4759131 | Method and apparatus for marking image points in photogrammetric surveys A stylus is briefly placed on the surface coating of photographs for forming an artificial marking symbol on the coating. The stylus oscillates in the ultrasonic frequency range. Part of the oscillation energy of the stylus is converted into frictional he... | 07/26/1988 |
| 4679183 | Sound recording apparatus for blank films and tapes An apparatus and method for reproducing sound recordings on blank films and tapes of plastic materials in which a continuous master film carrying sinuous lines of imprint containing the sound recordings to be reproduced are pressed against a blank tape as... | 07/07/1987 |
| 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 |
| 4497860 | Imageable prismatic array Articles having on one surface thereof a linear prism array and a diffraction grating on the opposite surface are provided which are suitable for the preparation of projection transparencies.... | 02/05/1985 |
| 4463083 | Thermal recording elements A thermal recording element comprising a support having formed thereon a recording layer, a first protective layer comprising an organic high molecular weight material having a softening point below about 70° C. formed on the recording layer, and a secon... | 07/31/1984 |
| 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 |
| 4409277 | Visual information carrier comprising a flexible plastic sheet A visual information carrier comprising a single layer sheet of transparent synthetic polymer having dispersed therein a fluorescent dye. The sheet is not subject to white fracture and has profilings on at least one surface, which are produced by deformat... | 10/11/1983 |
| 4405671 | Optical information recording disk Disclosed herein is an optical information recording disk comprising as a base material thereof a polymer or copolymer having a glass transition temperature of at least 50° C. and a structural unit derived from a monomer which is an ester of an ,&... | 09/20/1983 |
| 4394438 | Method of manufacturing an optically readable information carrier using deep U.V. radiation A method of manufacturing an optically readable information carrier in which a substrate 1 which is provided on at least one surface with a material which is sensitive to deep ultraviolet light having a wavelength from 190-300 nm, is exposed to deep ultra... | 07/19/1983 |
| 4390579 | Doped polyphenylene ether lubricant for high density information discs High density information discs comprising a conductive carbon-loaded polyvinylchloride disc are lubricated with a polyphenylene ether containing a polar dopant substituted with a long chain alkyl group in amounts sufficient to reduce surface tension of th... | 06/28/1983 |
| 4358519 | Technique of introducing an interface layer in a thermoplastic photoconductor medium This invention pertains to an improved technique of introducing an added insulative layer between the thermoplastic layer and the photoconductive layer of the thermoplastic photoconductive holographic recording medium. The added layer (pure PVK) is electr... | 11/09/1982 |
| 4304806 | Information carrying discs An information carrying element comprising a substrate having adhered to at least one surface thereof a separate layer having a thickness of 1.0 to 100 microns and a circular or spiral pattern of surface variations provides a particularly useful element w... | 12/08/1981 |
| 4288509 | Recording material A recording material comprising a transparent support having formed thereon a recording layer containing a thermally coagulatable proteinaceous compound, the recording layer having an average optical density throughout the wavelength region of about 350 m... | 09/08/1981 |
| 4282295 | Element for thermoplastic recording In a thermoplastic-photoconductor holographic recording medium in the form of several transparent layers over a transparent substrate, such as an optically transparent electrically conductive layer, then a photoconductor layer and a thermoplastic layer ov... | 08/04/1981 |
| 4276334 | Pressure sensitive recording sheet A pressure sensitive member comprises a base sheet and an opaque pressure clarifiable layer overlying the substrate and the color of the substrate being different from that of the opaque clarifiable layer.... | 06/30/1981 |
| 4270130 | Thermal deformation record device with bleachable dye In accordance with the present invention, the optical characteristics of a thermal deformation record device are so altered that the device can be read back using the same beam as was used for recording. Moreover, the read beam can be used for playback at... | 05/26/1981 |
| 4233380 | Process for shaping a thermoplastic layer This invention relates to a process for shaping a recording produced on a material including a photoconductive, thermoplastic layer disposed on a carrier by electrostatic charging and exposure to light, which process comprises disposing the said material ... | 11/11/1980 |
| 4223062 | Curl resistant photoplastic film A curl resistant transmissively readable photoplastic film is produced having a base ply of polyethylene terephthalate to one side of which is laminated, in sequence, a light transmissive layer of electrically conductive particles, a primer layer of a dim... | 09/16/1980 |
| 4202693 | Recording material having intersecting conductive strips and apertured spacing means Disclosed is a recording material comprising a first transparent, dielectric support member having on one surface thereof a plurality of first elongated, electrically conductive regions extending adjacent one another in spaced relationship; a layer compri... | 05/13/1980 |
| 4148636 | Broadening the spatial frequency pass band of a thermoplastic layer A layer of thermally deformable plastic used, for example, in a holographic recording medium has an undulated surface whereby the layer has an uneven thickness. Because of the uneven thickness, the layer has a composite spatial frequency pass band greater... | 04/10/1979 |
| 4139853 | Laserbeam recording A method of directly forming a light scattering image, wherein a recording layer is information-wise exposed in the visible light spectral region to a light energy dose of at least 10-1 Ws cm-2 with a focussed laser-beam having a bea... | 02/13/1979 |
| 4137077 | Broadening the spatial frequency pass band of a thermoplastic layer A layer of thermally deformable plastic used, for example, in a holographic recording medium has an undulated surface whereby the layer has an uneven thickness. Because of the uneven thickness, the layer has a composite spatial frequency pass band greater... | 01/30/1979 |
| 4123309 | Transfer letter system A composite strip material for forming graphics such as letters, numbers, symbols or pictures. The strip includes an accepting tape comprising a layer of latent adhesive material in face-to-face contact with a layer of microgranules lightly adhered to a d... | 10/31/1978 |
| 4076371 | Holographic recording material for infrared radiation A composite material for recording holograms with infrared radiation. The terial includes a substrate and an IR-absorbing recording layer. Infrared radiation is absorbed by the recording layer whereupon the optical thickness of recording layer is changed ... | 02/28/1978 |
| 4064205 | Method for making a printing plate from a porous substrate A thermoplastic plate, for example one of polypropylene or nylon, fabricated so it has an open-cell structure, has a radiation transparent cover sheet applied to one face thereof. The cover sheet has an energy absorbing coating (e.g. of carbon and nitroce... | 12/20/1977 |
| 4053872 | Thermoplastic optical recording medium using IR wave length An apparatus for and a method of recording or writing optical data into a thermoplastic layer is disclosed. The apparatus includes a layer of photoconductive material that is photoconductively responsive to a data containing light beam having a wave lengt... | 10/11/1977 |
| 4033690 | Process for the production or erasure or deformation images and apparatus for the performance of the process This invention relates to an improvement in an apparatus for recording or erasing an electrostatic image by deforming a photoconductive thermoplastic layer of a recording material by heating, including support means for said recording material, charging m... | 07/05/1977 |
| 4032338 | Holographic recording medium employing a photoconductive layer and a low molecular weight microcrystalline polymeric layer A holographic recording medium comprising a conductive substrate, a photoconductive layer and an electrically alterable layer of a linear, low molecular weight hydrocarbon polymer has improved fatigue resistance. An acrylic barrier layer can be interposed... | 06/28/1977 |
| 4023969 | Deformable elastomer imaging member employing an internal opaque deformable metallic layer An imaging system comprising an imaging member including a deformable metallic layer arranged between a pair of deformable layers, at least one of which comprises an elastomer material. In operation an electrical field is established across the deformable... | 05/17/1977 |
| 3999918 | Apparatus for making a printing plate from a porous substrate A thermoplastic plate, for example one of polypropylene or nylon, fabricated so it has an open-cell structure, has a radiation transparent cover sheet applied to one face thereof. The cover sheet has an energy absorbing coating (e.g. of carbon and nitroce... | 12/28/1976 |
| 3997238 | Holographic recording process using a thermoplastic photosensitive member A holographic recording process uses a thermoplastic photosensitive member in which charging on the member and exposing the same to light having holographic information are carried out simultaneously, and an unevenness image corresponding to the informati... | 12/14/1976 |
| 3995280 | Method of monitoring thermoplastic recording A method of and an apparatus for achieving consistent recording or writing of optical data in thermoplastic films is disclosed. An empirically determined level of developing energy E is set into a heat controller that applies developing energy E (heat) to... | 11/30/1976 |
| 3980476 | Imaging system There is disclosed an imaging system for forming a plurality of images on the same surface, at least one of which is permanent and one of which is erasable. The imaging system includes an electro-optic imaging member which has a "built-in" master image.... | 09/14/1976 |
