Quotables
"There is practically no chance communications space satellites will be used to provide better telephone, telegraph, television, or radio service inside the United States."
T. Craven, FCC Commissioner ; 1961
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 |
| 7289295 | Return pole field reduction for perpendicular write head In a single vertical pole magnetic writer, flux passing through the return pole can sometimes be strong enough to erase previously recorded data. This problem has been overcome by the addition of a second return pole that is magnetically connected to the conventiona... | 10/30/2007 |
| 7146714 | Manufacturing a magneto-optical write/read head A method of manufacturing a digital magneto-optical signal write/read head including a thin-film in-plane magnetic coil disposed on an outwardly directed surface of a coil substrate. Coil lead in and coil lead out sections of the coil are extended to an interconnect... | 12/12/2006 |
| 7092116 | Method and system for processing an annotated digital photograph using a composite image An annotated digital photograph processing system that forms a plurality of composite image files from a plurality of corresponding digital images, annotation information and process control information, and prints them as a plurality of composite images on a roll o... | 08/15/2006 |
| 7050256 | Fast erase method and apparatus for digital media A non-contact fast erase method for erasing information stored on a magnetic or optical media. The magnetic media element includes a magnetic surface affixed to a toroidal conductor and stores information in a magnetic polarization pattern. The fast erase method inc... | 05/23/2006 |
| 6914427 | Eddy current probe having sensing elements defined by first and second elongated coils and an associated inspection method An eddy current probe and associated method of inspecting a structure are provided that are capable of generating a two-dimensional image of the structure, generally in real time. The eddy current probe includes an eddy current probe array having a plurality of firs... | 07/05/2005 |
| 5978001 | Magnetic brush development roller A magnetic brush development roller assembly for an electrographic printer includes a cylindrical multipole magnet mounted for rotation about a cylindrical axis; and a conductive non-magnetic stationary shell surrounding the multipole magnet. The shell de... | 11/02/1999 |
| 5699088 | Recording head for a magnetic printer A recording head for a magnetic printer utilizes a so-called magnetography, in which a magnetic latent image formed on a magnetic recording medium is developed and actualized by a magnetic toner and which image is transferred and fixed on a sheet of recor... | 12/16/1997 |
| 5317340 | Method and device for erasing and writing on magnetic recording media suitable for direct viewing Method and devices for erasing and writing on magnetic particle oriented media are described. Erasure is caused by moving a magnetic field which enters and exits the media at a finite angle but stays parallel to the media in some region. A magnetic stenci... | 05/31/1994 |
| 5279224 | Charge imaging system for a printing press An imaging system (12) for a printing press (10) having an imaging cylinder (44) having an outer surface (46) mobile to movement of charged particles, a device (52) for inducing a charge on the surface of the cylinder (44) of a first polarity, a film (48)... | 01/18/1994 |
| 5264685 | Coding device for magnetic cards A device for coding key cards for magnetically operating locks and the incorporating of such a device which is as simple as possible plus the corresponding key cards in an entrance control system. The key card has, in addition to the locking code, a secon... | 11/23/1993 |
| 5196859 | Picture processing system A picture processing system for printing an image recorded on a negative film onto a photographic paper having a magnetic recording portion includes a write head for writing information corresponding to an image printed on said photographic paper onto a p... | 03/23/1993 |
| 5095317 | Thermomagnetic imprinting apparatus and method An imprinting apparatus having application means for applying thermal energy to a recording portion of thermoplastic magnetic ink and generation means for simultaneously generating magnetic attraction force in the ink is provided. The recording portion of... | 03/10/1992 |
| 4935403 | Recording head and its application A recording head comprises a magnetically permeable substrate, a superconducting film formed on one side of said substrate, a means for producing a uniform magnetic field sustantially perpendicular to a surface of the superconducting film, and a means for... | 06/19/1990 |
| 4901087 | Device for forming latent magnetic images on the recording element of a magnetographic printer The invention relates to a device for forming latent magnetic images on the recording element of a magnetographic printer. A plurality of magnetic heads (such as Y1, X1, Y2, and so forth), of different sizes are provided which can be displaced along the surfac... | 02/13/1990 |
| 4813007 | External magnetic field generating device An external magnetic field generating device includes a pole piece mounted on a face of a magnetic plate, and a coil which is in contact with the face of the magnetic plate, the coil being wound flatly around the pole piece so that it spreads out radially... | 03/14/1989 |
| 4750004 | Magnetic head array A magnetic head array for use in a magnetographic printer, in which local magnetic fields are generated by U-shaped wires each having a complete magnetic yoke formed by bending a foil made up of alternative parallel conductive and soft-magnetic wires over... | 06/07/1988 |
| 4750003 | Magnetic display unit A magnetic display unit in which a magnetic panel encloses a colored liquid in which magnetic particles are dispersed. A recording head moves over the panel and has a plurality of electromagnets arranged with at least three electromagnets on each of paral... | 06/07/1988 |
| 4745418 | Reusable developing powder composition A non-fusible, monocomponent toner is described which comprises an organic resin having a high fusion point, a magnetically responsive material admixed therewith, and an electrically conductive surface. The toner is capable of being repeatedly used.... | 05/17/1988 |
| 4739342 | Crossed-element magnetographic print head A magnetographic printing head comprises an array of crossed elongated bar-shaped print elements, each of which is individually magnetizable by electrical conductors wound about respective ones of the print elements. The print elements are arranged in two... | 04/19/1988 |
| 4736210 | Magnetic transducer including a plurality of heads and method for producing the magnetic transducer The invention relates to a method for producing a magnetic transducer including a plurality of heads and a transducer produced thereby. The method comprises placing a magnetic core (such as 17-2) provided with a winding (such as E1-2) in each of the groov... | 04/05/1988 |
| 4725850 | Electromagnetic head with separate addressability resolution and imaging resolution functions An electromagnetic printhead is fabricated with a common flux returning backplate and an array of writing elements extending from the common backplate. The writing elements consist of large pedestals and small pedestals. The placement of the large pedesta... | 02/16/1988 |
| 4701767 | Magnetic recording head and method for manufacturing A method is disclosed which manufactures a recording head adapted to be moved relative to a recording medium, which is comprised of a conductive substrate and dielectric layer formed on the conductive substrate, to permit data to be recorded on the record... | 10/20/1987 |
| 4646107 | XY plotter apparatus An XY plotter apparatus includes a magnetic panel, a writing tool for applying a magnetic field, a writing tool drive and an erasing magnetic field generator. The writing tool consists of an electromagnet which is arranged so that specified characters and... | 02/24/1987 |
| 4554557 | Thermomagnetic printer A thermomagnetic printer includes a recording unit for storing a latent image in which there are provided a magnetic recording layer providing thermomagnetic effect when placed in magnetic field with temperature graduation on one side of a photoconductive... | 11/19/1985 |
| 4536773 | Magnetic recording apparatus with adjustable line density Apparatus for forming latent images in a magnetic printing apparatus provides a recording head having a plurality of channels. Among the plurality of channels, some channels are selected and set in accordance with the scanning line density. The selected c... | 08/20/1985 |
| 4525725 | Method and apparatus for forming magnetic latent images A method and apparatus for forming latent images in which all channel heads are used in different line density scanning. In the case of a multi-channel head having at least three channels which are positioned with a constant distance, the order of the arr... | 06/25/1985 |
| 4525724 | Magnetic recording head array for longitudinal magnetic printing with staggered head arrangement and clustered wiring A magnetic recording head array for printing onto a transfer magnetic recording medium which prints magnetic material onto a medium such as paper includes staggered arrays of magnetic print heads. The heads are in diagonally staggered parallel arrays tilt... | 06/25/1985 |
| 4525723 | Magnetic recording head A thin film magnetic recording head and process for fabricating it is disclosed. The magnetic recording head has a core with a gap the same length as the width of an original document to be produced and is positioned in contact with a moving magnetic reco... | 06/25/1985 |
| 4520409 | Thermal and magnetic recording head A combination thermal and magnetic recording head is advantageously designed such that the heat generating resistor elements forming the thermal device are incorporated with the magnetic head device. Specifically, the thermal head may be incorporated in t... | 05/28/1985 |
| 4518970 | Method for forming a latent image and apparatus for carrying out the same A magnetic printing apparatus provides a recording head having a plurality of channels with different tracking widths. A locus is described by a preceding channel having a wide tracking width, another locus is described being partly overlapped on said loc... | 05/21/1985 |
| 4513326 | Magnetic printing machine employing a multi-channel recording head with minimal cross-talk with secondary scanning head movement In a magnetic duplicator using a magnetic printing machine, reflected light from a document is converted into an electrical video signal by a photoelectric converting element, and the electrical video signal is supplied to plural channels of the magnetic ... | 04/23/1985 |
| 4503440 | Thin-film magnetic writing head with anti-saturation back-gap layer Apparatus for producing a magnetic image in a magnetic image storage medium. The apparatus includes a thin-film magnetic web with a pole-defining face and a second thin-film blanket magnetically spaced from the first magnetic web and having a second surfa... | 03/05/1985 |
| 4503439 | Thin-film, compliant, non-pressure-point-telegraphing, electromagnetic read/write head structure A thin-film, floppy and compliant, electromagnetic, read/write head structure which is adapted to be pressed against a magnetic imaging medium during reading and writing. Individual heads and associated structure are distributed like "bumps" on one face o... | 03/05/1985 |
| 4496962 | High resolution magnetic printing head In order to increase the resolution and visual quality of the image produced by the transverse magnetic imaging technique, a magnetic printing head has an odd number of stacked elongated comb-type recording head sub-assemblies which are offset relative to... | 01/29/1985 |
| 4494125 | Differential-permeability field-concentrating magnetic read/write head A magnetic-image read/write head including inner and outer, substantially co-planar, symmetrically arranged pole portions. In one embodiment, the head is disclosed with the inner pole portion presenting a substantially full-circular facial expanse, and wi... | 01/15/1985 |
| 4470051 | Multiple head magnetic recording array Apparatus for producing a preselected final image in a travelling magnetic image-storage medium, which image is formed of an arrangement of individual magnetic image units and line segments formed of a plurality of linearly disposed contiguous units havin... | 09/04/1984 |
| 4442441 | Magnetic recording device A device for recording predetermined magnetization patterns on a magnetic recording medium such as for use in a copying machine. The magnetic medium is first magnetized with a uniform magnetization pattern then passed to a thermal printing head upon which... | 04/10/1984 |
| 4415906 | Magnetic recording heads There is provided improvements in magnetic recording head arrangements, such as may employ multiplexing, which provide substantially higher speeds of recording and require fewer components. The recording head is comprised of a compact, four-layer laminate... | 11/15/1983 |
| 4414554 | Magnetic imaging apparatus Apparatus for producing in a magnetic image-storage medium a high-resolution, smooth-edge-defining magnetic image. Such is accomplished through the cooperative action of two, opposite-polarity, concentric magnetic poles which function to create, on a face... | 11/08/1983 |
| 4380768 | Magnetic printer and printhead A magnetic print module for use as a printhead of a magnetic printing system. The print module comprises a base having a matrix of integral protrusions extending upward from the base and a plurality of coils wrapped around the base between the rows and co... | 04/19/1983 |
