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 |
| 7348079 | Magnetic recording medium A magnetic recording medium is provided that has on a non-magnetic support, in order, a radiation-cured layer formed by curing a layer containing a radiation curing compound by exposure to radiation, a lower layer having a non-magnetic powder and/or a magnetic powde... | 03/25/2008 |
| 7282279 | Magnetic recording medium including a radiation-cured material layer having a specified structure and composition A magnetic recording medium is provided that includes a non-magnetic support and, in order, above the non-magnetic support, a radiation-cured material layer cured by exposing a layer that includes a radiation curable compound to radiation, and a magnetic layer that ... | 10/16/2007 |
| 7175927 | Magnetic recording medium utilizing specified non-magnetic particles in the magnetic layer A magnetic recording medium having a non-magnetic support and a magnetic layer formed thereon, wherein the magnetic layer comprises a ferromagnetic powder, a binder and a non-magnetic inorganic powder, and wherein at least 95% of the non-magnetic powder particles co... | 02/13/2007 |
| 6610426 | Magnetic recording medium containing a binder of trifunctional or higher aliphatic (meth) acrylate compound Provided is a magnetic recording medium achieving high durability, a high degree of smoothness, and a magnetic layer of uniform thickness, and having substantially better electromagnetic characteristics. A magnetic recording medium comprising a nonmagneti... | 08/26/2003 |
| 5281482 | Magnetic recording medium comprising magnetic particles and an electron beam curable polyurethane binder having segments derived from a specified unsaturated diol A method and agent for improving polyurethane binder compositions are provided. The method comprises introducing into the polyurethane backbone a diol residue including a double bond therein. Preferably the double bond is positioned in a moiety pendant fr... | 01/25/1994 |
| 5068145 | Magnetic recording medium in which the magnetic layer contains a vinyl compound having an inner salt of an alkyl amino alkyl group A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer comprising a binder and ferromagnetic particles dispersed therein, wherein the magnetic layer further contains a vinyl compound having an inner salt of ... | 11/26/1991 |
| 4803131 | Magnetic recording medium An improvement of a magnetic recording medium comprising a nonmagnetic support and a magnetic recording layer provided on the support which comprises a binder and a ferromagnetic powder dispersed therein is disclosed. The binder contains a resin component... | 02/07/1989 |
| 4801392 | Magnetic recording compositions containing ionic dye compounds as initiators The present invention provides magnetic recording compositions containing magnetic particles and a photohardenable composition wherein the photohardenable composition contains a free radical addition polymerizable or crosslinkable compound and an ionic dy... | 01/31/1989 |
| 4716077 | Magnetic recording medium A magnetic recording medium is described, comprising a non-magnetic support and a magnetic layer, said magnetic layer containing as a binder at least one compound selected from each of compound groups (A) and (B) that has been exposed to radiation, wherei... | 12/29/1987 |
| 4708909 | Radiation-curable, magnetic coating material and magnetic recording medium using the same This invention concerns a radiation-curable, magnetic coating material and a magnetic recording medium made with the coating, which is characterized in that a water-soluble or water-dispersed resin having at least one radiation-curable, unsaturated double... | 11/24/1987 |
| 4699844 | Magnetic recording medium A magnetic recording medium comprised of a support base having a magnetic recording provided thereon is disclosed. The recording layer is comprised of ferromagnetic particles dispersed in a binder. The binder includes (1) a vinyl chloride-vinyl alkanoate ... | 10/13/1987 |
| 4690870 | Magnetic recording medium A magnetic recording medium comprising a non-magnetic support having thereon an electron-beam radiation-cured magnetic recording layer, said magnetic layer comprising a ferromagnetic oxide and a binder comprising (1) a resin selected from the group consisting ... | 09/01/1987 |
| 4687709 | Magnetic recording carrier containing radiation hardenable dispersing agents This invention relates to a magnetic recording carrier in which the magnetic layer and/or the backing layer contains, in addition to the usual additives, radiation hardenable dispersing agents based on ethylenically unsaturated phosphoric acid ester mixtu... | 08/18/1987 |
| 4686149 | Magnetic recording medium and method of preparing A method is described for preparing a magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer containing a compound which is cross-linkable or polymerizable by radiation exposure, which comprises conducting a c... | 08/11/1987 |
| 4686146 | Radiation-cured recording composition with bi-part lube A novel resinous binder composition is disclosed for a magnetic recording tape or like media. Magnetic particles are dispersed within a resinous matrix having both a "hard" and a "soft" component. The "hard" component is fabricated by exposing a resin cap... | 08/11/1987 |
| 4678708 | Magnetic recording medium A magnetic recording medium, obtained by preparing a radiation-sensitive curing resin by modification of a copolymer of (A) vinyl chloride, (B) a vinyl carboxylate, (C) an unsaturated carboxylic acid and (D) an unsaturated carboxylic anhydride, containing... | 07/07/1987 |
| 4673591 | Production of layer-type magnetic recording media Layer-type magnetic recording media are produced by dispersing a finely divided magnetically anisotropic material in a binder which consists of not less than 30% of a radiation-curable aqueous binder dispersion, applying the dispersion onto a non-magnetic... | 06/16/1987 |
| 4672002 | Magnetic recording medium A magnetic recording medium comprising a support having coated thereon a magnetic layer is disclosed. The magnetic layer contains, as a binder, a composition cured with electron beam comprising (a) at least one of vinyl chloride-vinyl acetate type resins ... | 06/09/1987 |
| 4671998 | Magnetic recording medium A magnetic recording medium having an improved durability is disclosed, which comprises a support having provided thereon a magnetic layer containing ferromagnetic particles and a binder, that is exposed to radiation, wherein the binder comprises a compou... | 06/09/1987 |
| 4666783 | Magnetic recording media Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said binder matrix being obtained by electron beam curing of a mixture of from 60... | 05/19/1987 |
| 4664965 | Magnetic recording medium A magnetic recording medium is disclosed, which comprises a non-magnetic support having a surface roughness of not less than 0.01 μm having thereon an intermediate layer and a magnetic layer, the intermediate layer comprising a polyester polyol having at... | 05/12/1987 |
| 4664964 | Magnetic recording medium A magnetic recording medium is described, comprising a non-magnetic support having coated thereon an intermediate layer and a magnetic layer having ferromagnetic particles dispersed in a binder, wherein the surface roughness of the coated surface of the s... | 05/12/1987 |
| 4663184 | Radiation curable phosphorate ester compounds Radiation curable phosphorate ester compounds of the following formula: ##STR1## wherein, Rd is selected from the group consisting of ##STR2## wherein n=1-3, and those bond sites on Y not occupied by Rd are occupied by a moiety selected from th... | 05/05/1987 |
| 4657817 | Magnetic recording material There is provided a magnetic recording material produced by coating on a support a magnetic coating composition which contains as main components a magnetic powder and a binder, the binder comprising an urethane acrylate synthesized using a polyester poly... | 04/14/1987 |
| 4647506 | Flexible, self-cross-linking binders Flexible, self-cross-linking binders, useful for, e.g., paints and magnetic media composites, are prepared from hydroxyl-containing thermoplastic polymers reacted with condensates of diisocyanates and unsaturated esters. They can be cured with an electron... | 03/03/1987 |
| 4634633 | Magnetic recording medium A magnetic recording medium has a magnetic layer consisting essentially of a binder and magnetic particles on one surface of a non-magnetic substrate. The thermoplastic polyurethane-urea resin in which unsaturated bonds sensitive to radiation are introduc... | 01/06/1987 |
| 4632878 | Magnetic recording medium The present invention relates to a magnetic recording medium prepared by the process comprising (1) coating a magnetic coating composition mainly containing ferromagnetic particles and a binder on a support and (2) irradiating the resulting support with e... | 12/30/1986 |
| 4621027 | Magnetic recording medium A magnetic recording medium is described, comprising a support and a magnetic layer disposed thereon, said magnetic layer containing as its binder component a combination of at least one member of each of the following groups of compounds (1) to (3) that ... | 11/04/1986 |
| 4619855 | Magnetic recording medium with electron beam cured magnetic layer A magnetic recording medium is disclosed. The medium is comprised of a support base having an average center line roughness (Ra) of 0.035 μm or less which has coated thereon a magnetic layer. The magnetic layer is comprised of ferromagnetic fine particle... | 10/28/1986 |
| 4619868 | Magnetic recording medium A magnetic recording medium comprised of a support having a magnetic layer coated thereon is disclosed. The magnetic layer is comprised of a binder composition having a ferromagnetic powder dispersed therein. The binder composition is cured by an electron... | 10/28/1986 |
| 4607068 | Radiation-curable coatings adapted for magnetic recording structures Radiation curable coating compositions, and especially electron beam-curable coating compositions, are disclosed in which magnetizable particles are dispersed in a liquid vehicle comprising a polyethylenically unsaturated polyurethane oligomer which inclu... | 08/19/1986 |
| 4603081 | Magnetic recording medium A magnetic recording medium, produced by preparing a resin solution for magnetic paint containing a mixture of a radiation curable resin modified copolymer of (A) vinyl chloride, (B) a vinyl carboxylate, (C) vinyl alcohol, (D) an unsaturated carboxylic ac... | 07/29/1986 |
| 4601947 | Magnetic recording medium A magnetic recording medium, produced by preparing a resin solution for magnetic paint having as a main component thereof a copolymer of (A) vinyl chloride, (B) a vinyl carboxylate, (C) an unsaturated carboxylic acid, (D) an unsaturated carboxylic anhydri... | 07/22/1986 |
| 4600521 | Electron-beam reactive magnetic coating composition for magnetic recording media An electron-beam reactive magnetic coating composition for use in magnetic recording media comprising a magnetic powder and a polymer resin as a binder therefor, the polymer resin containing vinyl chloride as a main component and having at least one hydro... | 07/15/1986 |
| 4576866 | Magnetic recording material There is provided a magnetic recording material which comprises a support and a magnetic layer coated thereon. The magnetic layer contains as its binder, a combination of at least one vinyl chloride-vinyl acetate-based copolymer characterized by its --CO | 03/18/1986 |
| 4560617 | Magnetic recording medium A magnetic recording medium comprising fine ferromagnetic particles as the main component and a binder composed of a mixture of a radiation sensitive soft resin, a radiation sensitive modified resin and a partially saponified vinyl chloride-vinyl acetate ... | 12/24/1985 |
| 4560616 | Magnetic recording medium having binder cured by electron beam radiation A magnetic recording medium comprising a support having coated thereon a magnetic layer is disclosed. The magnetic layer is comprised of a binder composition having ferromagnetic particles dispersed therein. The binder composition is cured by an electron ... | 12/24/1985 |
| 4560456 | Magnetic recording media Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said matrix being obtained by electron beam curing of a mixture of from 70 to 90%... | 12/24/1985 |
| 4559265 | Magnetic recording medium A magnetic recording medium, produced by preparing a resin solution for magnetic paint having as a main component thereof a copolymer of (A) vinyl chloride, (B) a vinyl carboxylate, (C) an unsaturated carboxylic acid and (D) an unsaturated carboxylic anhy... | 12/17/1985 |
| 4559118 | Magnetic recording media Magnetic recording media comprise a non-magnetic base and one or more magnetic layers consisting of an organic binder matrix containing finely divided magnetic material, the said matrix being obtained by electron beam curing of a mixture of from 50 to 100... | 12/17/1985 |
