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| Number | Title | Issue Date |
| 7244521 | System and method for improving corrosion resistance of magnetic media A system and method for corrosion problems in magnetic media resulting from moisture penetrating through the carbon layer into the magnetic layer by diffusion or other methods are overcome by processing the carbon overcoat to stop and/or inhibit the moisture penetra... | 07/17/2007 |
| 7187510 | Method of magnetic transfer to flexible medium A signal such as a servo tracking signal is recorded on a flexible slave medium by magnetic transfer. When forming the flexible slave medium of a magnetic strip in a continuous length, the signal is recorded on the magnetic strip by patterned master magnetic transfe... | 03/06/2007 |
| 7112354 | Electron spin mechanisms for inducing magnetic-polarization reversal An apparatus includes a low magnetic-coercivity layer of material (LMC layer) having a majority electron-spin-polarization (M-ESP), an energy-gap coupled with the LMC layer, wherein a flow of spin-polarized electrons having an electron-spin-polarization anti-paralle... | 09/26/2006 |
| 7081277 | Magnetic disk drive having a surface coating on a magnetic disk A magnetic disk is produced with improved yield by forming a DLC protective film by a d.c. magnetron sputtering process conducted in a sputtering atmosphere containing oxygen. The magnetic disk carries a lubricating film on the DLC film wherein a fluorocarbon resin ... | 07/25/2006 |
| 7060194 | Dry etching method for magnetic material A dry etching method in which a plasma of an etching gas is generated and a magnetic material is dry-etched using a mask material made of a non-organic material, wherein an alcohol having at least one hydroxyl group is used as the etching gas. The alcohol used as th... | 06/13/2006 |
| 6964722 | Method for producing a wood substrate having an image on at least one surface A method and system is provided for producing an image on one or more surfaces of a wood or wood composite substrate by applying a receptor coat to at least the one or more surfaces of the substrate, transferring the image to the receptor coat using a variety of ima... | 11/15/2005 |
| 6946166 | Magnetic recording medium, a method of manufacturing the same, and a magnetic storage device using the magnetic recording medium A magnetic recording medium according to the invention includes a nonmagnetic substrate made of a polymer resin, the nonmagnetic substrate having been treated to improve an adhesion characteristic thereof; an adhesive layer on the nonmagnetic substrate, a nonmagneti... | 09/20/2005 |
| 6897248 | UV curable ferromagnetic compositions The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and ... | 05/24/2005 |
| 6866898 | Method and apparatus for linking and/or patterning self-assembled objects A method and related apparatus to link and/or pattern self-assembled first objects to a second object. Each of the first object (e.g., a nanoparticle) can be embedded in a mobile binder (i.e., a stabilizer). The invention applies energy to the first object and stabi... | 03/15/2005 |
| 6861102 | Elastomeric lubricants for magnetic recording media Elastomeric fluoropolyether lubricant topcoats are formed on a protective overcoat of a magnetic recording medium. Embodiments include forming a an amorphous carbon layer having a thickness of no greater than about 25 Å as the protective overcoat and polymerizing ... | 03/01/2005 |
| 6805901 | Magnetic domain wall displacement type magneto-optical medium and method for manufacturing the same A method for manufacturing a magnetic domain wall displacement type magneto-optical medium includes forming a magnetic layer on a substrate and forming sectioning regions in which perpendicular magnetic anisotropy of the magnetic layer is reduced, and a plurality of... | 10/19/2004 |
| 6783644 | Film deposition method A film deposition method, which can form a high quality functional thin film excellent in various physical properties on a surface such as a plastic substrate, is provided. A carbon precursor film is formed on the surface of the substrate K with carbon ions (N2A) us... | 08/31/2004 |
| 6716893 | UV curable ferromagnetic compositions The present invention discloses an ultraviolet light curable ferromagnetic composition and method for making such a composition that may be used to produce a ferromagnetic coating on a suitable substrate. These coatings may be used to produce printed capacitors and ... | 04/06/2004 |
| 6506459 | Coating compositions containing alkoxy substituted perfluoro compounds A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-cont... | 01/14/2003 |
| 5591481 | Method of manufacturing a magnetic recording medium including forming a graft polymer lubricant layer by irradiating monomers with radicals or atomic gas A protection film and a lubricant layer of monomers are formed successively on a ferromagnetic metal thin film formed on a nonmagnetic substrate or on a base of sliding member. Then, the lubricant layer is irradiated with radicals or atomic gas in the pla... | 01/07/1997 |
| 5523115 | Magnetic recording medium having radiation curable binder with -methylstyrene unsaturation The present invention provides magnetic recording media comprising a magnetizable layer and optionally a backside coating provided on a nonmagnetizable substrate. At least one of the magnetizable layer and the optional backside coating comprises a polymer... | 06/04/1996 |
| 5409738 | Recording medium Disclosed are a recording medium comprising a substrate, a thin film for recording formed on at least one side of the substrate, a protective layer formed on the thin film, and a lubricative film formed on the protective layer, the lubricative film compri... | 04/25/1995 |
| 5374472 | Ferromagnetic thin films A ferromagnetic δ-Mn1-x Gax thin film having perpendicular anisotropy is described which comprises: (a) a GaAs substrate, (b) a layer of undoped GaAs overlying said substrate and bonded thereto having a thickness ranging from about ... | 12/20/1994 |
| 5118525 | Method for manufacturing magnetic recording medium while preventing damage to same caused by scraping by coating head A method for manufacturing a magnetic recording medium in which shavings are not generated when an easily bent thin web comes into contact with contact members of a coating head, a conveying system, rolls in calendaring treatment, etc., in which, during c... | 06/02/1992 |
| 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 |
| 5068144 | Perpendicular magnetic recording medium and method for producing the same A perpendicular magnetic recording medium comprising a non-magnetic substrate and a magnetic layer which is formed on at least one surface of the substrate and comprises acicular particles of ferromagnetic metal oriented perpendicularly to a plane of the ... | 11/26/1991 |
| 5000982 | Magnetic recording medium and method for producing the same A magnetic recording medium comprising a substrate and, formed thereon, a magnetic layer comprised of magnetic particles bonded to each other with a thermosetting binder can be improved with respect to the durability by forming a number of fine pores in t... | 03/19/1991 |
| 4992300 | Manufacturing method for a recording medium or a recording head This invention relates to a manufacturing method for a recording medium or a recording head characterized in improving the slide ability of a surface of a recording medium or a recording head, and improvement or their durability by forming a monomolecular... | 02/12/1991 |
| 4992328 | Magnetic recording medium A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer containing ferromagnetic particles which are dispersed in a binder and have a tabular hexagonal crystal shape with an axis of easy magnetization per... | 02/12/1991 |
| 4992316 | Recording medium and method of producing the same A recording medium which comprises a base body, a recording layer formed on the base body, and a protection layer formed on the recording layer for protecting the recording layer. The protection layer is made from silane surface active agent and the agent... | 02/12/1991 |
| 4976989 | Method for preparing a magnetic recording medium A method for preparing a magnetic recording medium comprises the steps of coating, on a non-magnetic support, a magnetic layer mainly containing ferromagnetic particles and a binder polymerizable by radiation exposure, conducting a calendering treatment, ... | 12/11/1990 |
| 4946729 | Resin composition and magnetic recording medium employing the composition A back coating resin composition for a magnetic recording medium comprising: (A) a plastic compound having a molecular weight of from 5,000 to 100,000 and containing at least two radiation-curable unsaturated double bonds; (B) a rubber-like compound having a m... | 08/07/1990 |
| 4923711 | Magnetic recording medium manufacturing process Magnetic recording media have been made with a new class of binder resins having the formula ##STR1## wherein the portion of the copolymer having the a subscript comprises 50 to 97 weight percent of the copolymer, the portion of the copolymer having ... | 05/08/1990 |
| 4916021 | Radiation cured binders internetworked with soft materials A novel resinous binder composition is disclosed for a magnetic recording tape. Magnetic particles are dispersed within a resinous matrix having both a hard and soft component. The hard component is fabricated by exposing a resin capable of being cured by... | 04/10/1990 |
| 4859501 | Method for providing a perpendicular recording medium for use with a ring-shaped recording and reproducing head A perpendicular magnetic recording method uses a perpendicular magnetic recording medium. This medium comprises a perpendicular anisotropy film having perpendicular remanent magnetization Mr and longitudinal remanent magnetization Mr.parallel.,... | 08/22/1989 |
| 4847109 | Method of a making magnetic recording medium A method of and an apparatus for making a magnetic recording tape, which is free from wrinkles formed thereon, by the use of a vapor deposition technique. A length of tape reeled on a supply reel is taken up by a take-up reel after having passed through a... | 07/11/1989 |
| 4812351 | Magnetic recording medium A magnetic recording medium is described, comprising a non-magnetic support having a surface roughness of 0.02 μm or less, a magnetic layer on the surface of the support and a backing layer on a surface of the support opposite to the surface on which the... | 03/14/1989 |
| 4810435 | Method of making substrate for magnetic recording medium A method of making a substrate for a magnetic recording medium comprises the steps of applying a radiation-polymerizable compound at least to one surface of a base sheet, closely contacting a surface of a transfer member with a surface of a coating layer ... | 03/07/1989 |
| 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 |
| 4795672 | Magnetic recording medium Disclosed herein is a magnetic recording medium comprising a substrate polyester film having on both sides or one side thereof a coating layer comprising a polyurethane having anionic group or a mixture of a polyurethane having anionic group and a polyest... | 01/03/1989 |
| 4794042 | Magnetic recording medium A magnetic recording medium wherein a magnetic layer containing a particulate magnetic material and a binder is formed on a substrate exhibits improved performance as magnetic recording tape, disk, and sheet when the particulate magnetic material comprise... | 12/27/1988 |
| 4789591 | Magnetic recording medium A magnetic recording medium comprising a support and a magnetic layer on said support. Said magnetic layer is a unitary magnetic layer comprising iron oxide powder having cobalt adsorbed on the surface thereof. The average grain size of said powder is not... | 12/06/1988 |
| 4783370 | Recording media containing alkyl acrylate copolymers Magnetic recording media have been made with a new class of binder resins having the formula ##STR1## wherein the portion of the copolymer having the a subscript comprises 50 to 97 weight percent of the copolymer, the portion of the copolymer having ... | 11/08/1988 |
| 4781965 | Magnetic recording medium A magnetic recording medium is described, comprising a non-magnetic support having coated thereon a non-magnetic layer and a magnetic layer in that order, with the surface roughness of the surface of the support on the side opposite from the magnetic laye... | 11/01/1988 |
| 4778707 | Magnetic recording medium and recording/reproducing method therefor A magnetic recording medium comprising a ferromagnetic metal thin film layer primarily based on cobalt and formed on the surface of a flexible substrate, an organic topcoat layer containing an anti-oxidant and a lubricant on the surface of the metal thin ... | 10/18/1988 |
