|
Match
|
Document |
Document Title |
|
|
4612244 |
Magnetic recording medium
A magnetic recording medium is disclosed, in which a magnetic layer is formed on one surface of the non-magnetizable substrate and a back coating layer consisting essentially of a binder and a...
|
|
|
4612235 |
Magnetic recording medium
This invention relates to a magnetic recording medium whose coefficient of friction is lowered without lowering S/N and which has an improved running property, which comprises a magnetic recording...
|
|
|
4610903 |
Magneto-optical disk memory
A magneto-optical disk memory comprises a magneto-optical recording medium constituted by a flexible substrate, and a recording thin film overlaid on the substrate. The recording thin film is...
|
|
|
4609964 |
Reinforcement for magnetic recording disk
A magnetic disk reinforcement member in which in adhesive layer is spaced from the peripheral edges of the reinforcement member to preclude exuding of the adhesive beyond the peripheral edges as a...
|
|
|
4609963 |
Spindle aperture reinforcement for a floppy disk
An improved reinforcement member for a central aperture in a flexible recording disk and a method for forming the same. The improved reinforcement comprises an integral, annular-shaped ring formed...
|
|
|
4609593 |
Magnetic recording medium
A perpendicular magnetic recording medium composed of a base material, a 1st magnetic thin layer formed on the base material, and a perpendicularly magnetizable 2nd magnetic thin layer formed on...
|
|
|
4609588 |
Magnetic recording medium
A magnetic recording medium comprises a magnetic layer coated on a substrate and composed of ferromagnetic powder dispersed in a binder, wherein the magnetic layer contains TiO 2 having an average...
|
|
|
4608618 |
Digital alignment diagnostic disk
An alignment disk including data tracks written in a spiral configuration, through the use of microstepping techniques, to accurately test a variety of transducer head parameters including head...
|
|
|
4608315 |
Magnetic recording medium
A magnetic recording medium comprising a resinous component in which magnetic particles are dispersed and a base to which the dispersion is solidly applied, the resinous component consisting of a...
|
|
|
4606971 |
Magnetic recording medium
Disclosed is a magnetic recording medium comprised of a substrate and a layer of magnetic powder coated on a surface of the substrate, characterized in that the magnetic powder is hexagonal...
|
|
|
4605597 |
Magnetic recording medium
A magnetic recording medium comprising a support having coated thereon a magnetic recording layer containing a ferromagnetic powder dispersed in a binder and a vinyl chloride-vinyl acetate...
|
|
|
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...
|
|
|
4603080 |
Magnetic recording media comprising fine particles of organosilica gel in the magnetic recording layer
A magnetic recording medium comprising a non-magnetic support and a magnetic recording layer formed on at least one side of the support, the magnetic recording layer being made of a cured mixture...
|
|
|
4601950 |
Magnetic recording medium and manufacturing method thereof
A manufacturing method for a magnetic recording medium is disclosed which comprises the steps of forming a metallic magnetic layer on a non-magnetic substrate such as a polyester film with or...
|
|
|
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...
|
|
|
4601946 |
Magnetic recording medium
A magnetic recording medium is disclosed which comprises a non-magnetic support having provided thereon a magnetic recording layer consisting ferromagnetic powder and containing graphite and a...
|
|
|
4600638 |
Magnetic recording medium
A magnetic recording medium is disclosed, which comprises a non-magnetic support having, on opposite surfaces thereof, a magnetic recording layer containing magnetic particles and a backing layer...
|
|
|
4599663 |
Recording apparatus with stable disc support and high magnetic flux hold-down
A magnetic recording apparatus includes a rotary disc rotatable about an axis and having an outwardly extending radial flange with three apertures therein; three pins mounted in the apertures on...
|
|
|
4599280 |
Magnetic recording medium
In a magnetic recording medium comprising a length of a non-magnetic plastic substrate and a magnetic thin layer of Co or Co-Ni or Co-Ni-Cr formed thereon, when the coercive force of the medium is...
|
|
|
4598017 |
Composite magnetic disk with Si and SiC substrate
The invention relates to a composite magnetic disk for magnetic recording, which consists of an annular core of polymeric material to which is bonded at least one disk of reaction-bonded silicon...
|
|
|
4598014 |
Magnetic recording medium
A magnetic recording medium is disclosed. The medium comprises a non-magnetic support having provided on opposite surfaces a magnetic recording layer and a backing layer containing two types of...
|
|
|
RE32193 |
Composite magnetic recording disk
A composite structure for magnetic recording includes a core member of polymeric material to which is bonded at least one silicon disk having a magnetic recording material on its outer surface. The...
|
|
|
4596747 |
Magnetic recording medium
A magnetic recording medium comprising a transparent plastic film substrate, a primer coating layer formed on the substrate and a magnetic layer for magnetic recording formed on the primer coating...
|
|
|
4596739 |
Rigid magnetic recording media
A rigid magnetic storage media coating composition using a high concentration of magnetic particles includes a dual thermoset binder system. The two polymers forming the dual binder system cure...
|
|
|
4596735 |
Magnetic recording medium and method for making
In a magnetic recording medium comprising a non-magnetic substrate and a magnetic layer of Co or Co-Ni in the form of a continuous thin film on the substrate, the magnetic layer has oxygen-rich...
|
|
|
4595640 |
Lubricant system for magnetic recording media containing isomeric acids or alcohols
An improved lubricant system for magnetic recording media such as helical scan video tapes is disclosed. The resulting improved magnetic recording media comprise the usual flexible or rigid backing...
|
|
|
4592952 |
Magnetic recording medium
A magnetic recording medium comprising a non-magnetic support, a magnetic layer on a surface of the non-magnetic support, and a backing layer on a reverse surface of the non-magnetic support,...
|
|
|
4592948 |
Magnetic recording medium
A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel,...
|
|
|
4592942 |
Magnetic recording medium
A magnetic recording medium comprising a non-magnetic substrate, a magnetic recording layer formed on one side of the substrate and a back coating layer on the other side of the substrate,...
|
|
|
4591528 |
Magnetic recording medium
A magnetic recording medium comprising a plastic base film, a magnetic layer formed on one side of the base film and composed of a ferromagnetic alloy powder dispersed in a resin binder, and a...
|
|
|
4590119 |
Polyester film and magnetic recording medium therefrom
An oriented polyester film is provided according to the present invention which contains, per 100 parts by weight of a polyester, (A) 0.005-2 parts by weight of fine particles having average...
|
|
|
4588653 |
Magnetic memory disk
A magnetic memory disk which has controlled magnetic characteristics in the radial direction is provided by controlling the thickness and composition of the magnetic layer which is formed on the...
|
|
|
4587179 |
Magnetic recording medium and manufacturing process thereof
A magnetic recording member characterized in that a magnetic film formed on a surface of a substrate has a very small amount of hydrogen mixed therein. The manufacturing process therefor is...
|
|
|
4587176 |
Layered coherent structures for magnetic recording
Layered coherent structures characterized by periodic, alternating layers of cobalt and palladium and/or platinum exhibit perpendicular magnetic anistropy.
|
|
|
4587170 |
Magnetic recording medium
A magnetic recording medium comprising a nonmagnetic support having coated thereon a magnetic recording layer comprising a ferromagnetic particles dispersed in a binder, the binder containing...
|
|
|
4587157 |
Wear resisting undercoat for thin film magnetic recording media
A flexible magnetic recording media, such as disks or magnetic tape, having a non-magnetic layer intermediate the substrate and magnetic recording layers providing improved durability of the...
|
|
|
4587150 |
Magnetic recording medium
A magnetic recording medium comprising a plastic base film, a thin magnetic metal layer formed on one side of the base film and a backing layer formed on the other side of the base film,...
|
|
|
4585702 |
Magnetic recording medium
Described is a magnetic recording medium comprising a substrate and a magnetic recording layer therein comprising a binder and magnetic particles, the binder comprising a lactone-acrylate adduct.
|
|
|
4585697 |
Magnetic recording medium
A magnetic recording medium is disclosed comprising a substrate coated with a mixture which consists essentially of (1) hexagonal plate-like shaped, ferrite magnetic powder particles having an...
|
|
|
4584243 |
Abrasive, production thereof and use thereof in magnetic recording medium
When an abrasive having an oleophilic surface used in a magnetic recording medium obtained by subjecting an inorganic powder having a Mohs hardness of 5 or above and an average particle size of 2...
|
|
|
4583145 |
Apparatus comprising a lubricant-coated magnetic disc and a magnetic head, and method of making said apparatus
The magnetic disc comprises a magnetizable layer (1) to which an adhesion promoting layer (4) and thereto a lubricant film (5) are applied. Onto the substrate of the magnetic head (2) an adhesion...
|
|
|
4583144 |
Magnetic recording disc cartridge
In a magnetic recording disc cartridge, a hub assembly composed of an upper hub member and a lower hub member inseparably connected with each other clamps the peripheral portion of a central hole...
|
|
|
4582759 |
Magnetic recording medium and process for producing same
A magnetic recording medium having a magnetic layer which is formed by dispersing a magnetic powder and further an abrasive when necessary into a binder containing a sugar alcohol. The magnetic...
|
|
|
4582757 |
Magnetic recording medium
A magnetic recording medium which comprises a non-magnetic support having on the surface side thereof a magnetic recording layer and on the opposite side thereof a backing layer having a thickness...
|
|
|
4582754 |
Magnetic recording medium
A magnetic recording medium comprising a support having provided thereon a magnetic recording layer containing (1) a cobalt-containing iron oxide, (2) graphite, and (3) a copolymer of vinyl...
|
|
|
4582746 |
Magnetic recording medium
Weather resistance and lubricity of a magnetic recording medium comprising a non-magnetic support having provided thereon a vapor deposited magnetic thin film mainly composed of cobalt, nickel and...
|
|
|
4581296 |
Magnetic recording media
Magnetic recording media consist of a non-magnetic base and a magnetic layer firmly bonded thereto, the magnetic layer containing further additives in addition to ferromagnetic metal powder, an...
|
|
|
4581270 |
Flexible magnetic disk
A flexible magnetic disc comprising a magnetic sheet having on at least a part thereof a protective layer comprising (a) a straight or branched chain compound having an acrylic or methacrylic acid...
|
|
|
4580966 |
Orientation processing device for magnetic particles on disc-shaped magnetic recording medium
A device for orienting magnetic particles contained in a magnetic layer on a disc-shaped magnetic recording medium along the circumference of the recording medium. The magnetic layer is provided on...
|
|
|
4579778 |
Magnetic recording medium
A magnetic recording medium is disclosed which comprises a non-magnetic support, having a Young's modulus of 7×10 10 to 1×10 13 dyn/cm 2 , having coated on opposite surfaces, a magnetic...
|