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7691468 Method and means for producing a magnetically induced design in a coating containing magnetic particles  
The invention discloses a device and a method for transferring a predeterminable, high-resolution magnetic design onto a document printed with a magnetic ink, in particular a magnetic optically...
6025856 Magnetic indication sheet printing method and magnetic indication sheet printing apparatus  
A magnetic indication sheet printing method and a magnetic indication sheet printing apparatus for printing characters and such on a magnetic indication sheet being capable of carrying out an...
5774157 Method of density adjustment for a magnetic printing apparatus  
The dimensions of a magnetized pattern formed on a recording medium are varied, thereby causing the amount of toner attracted to the recording medium to vary, and thereby adjusting the printing...
5668578 Method for fabricating ferrolelectric domain reversals, and optical wavelength converter element  
A ferroelectric substance such as LiNbO3 that possesses a unipolarized non-linear optical effect is etched on its surface. An earth electrode is formed on one surface (the +z plane) of a...
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...
5289202 Magnetic recording apparatus and magnetic recording medium with a film to be vertically magnetized sandwitched with soft magnetic films  
A magnetic recording medium having a triple layered structure including a substrate, a first layer or a soft magnetic thin film of high permeability piled on the substrate, a second layer or a...
5034754 Magnetic pattern viewer  
This invention provides a device for visually displaying magnetic patterns assumed within or recorded on a planar medium, e.g. electrical steel sheet, comprising a transparent plate and a membrane...
4996538 Apparatus for separating and recovering solid developer particles transported by a gaseous flow  
The invention relates to an apparatus for separating and recovering solid particles transported by a gaseous flow. The apparatus includes a separation chamber (40), an admission conduit (43) by...
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...
4621269 Magnetic recording arrangement for thermographic printing apparatus  
Magnetic recording arrangement, for example, in a thermomagnetographic plain-paper printer, produces a latent magnetic image on a magnetic recording medium which is composed of a ferromagnetic...
4366488 Read/write arrangement for a magnetic terminal  
A terminal has a reciprocating print head bearing a series of linearly arranged, individually-magnetizable styli for printing on magnetic particle oriented paper. The terminal may be used as a...
4329694 AC Corona to remove background from the transfer member of a thermomagnetic copier  
A process for reproducing graphic information wherein a magnetic image is formed in a premagnetized layer of acicular chromium dioxide by heating the chromium dioxide selectively to above its...
4323933 Device for erasing a record carrier recorded by magnetic fields in visually readable form  
The record carrier allows visually readable recordings of measured values. A measuring device associated with said record carrier is driven by a drive device. The erasing device comprises at least...
4246588 Particle feed arrangement for applying solid particles to the image carrier of a non-impact printer  
A particle feed arrangement for applying solid particles contained in a particle storage tank to an image carrier of a non-impact printer. The arrangement includes a conveying member disposed to...
4233382 Electrostatic transfer of magnetically held toner images  
A process for reproducing graphic information wherein a magnetic image is formed in a premagnetized layer of acicular chromium dioxide by heating the chromium dioxide selectively to above its...
4197563 Method and device for orientating and fixing in a determined direction magnetic particles contained in a polymerizable ink  
The invention comes within the field of magnetic recording. A method of ontating and fixing in a determined direction magnetic particles contained in a polymerizable ink (2) spread on a support...
4180207 Security material and secure document system using said material  
A secure document is produced by securely attaching to a support a body of including a security feature and having a shape which conveys information to the eye. For example the body is a layer of...
4158862 Selective fixation method for producing permanent magnetic recordings  
Permanent magnetic recordings are made by orienting the magnetic particles f a polymerizable ink in a first direction, then selectively polymerizing the ink to fix some of the particles in the...
4125844 Magnetic position marker for a tape recorder using magnetically alignable particles for making the mark  
A cassette tape recorder including a device for making index marks on a strip denoting the position of magnetic tape relative to a magnetic head, the marking strip being on a cassette exterior...
4101905 Method for writing and viewing magnetic human readable characters and viewing means therefor  
A multi-track magnetic recording head is used to record data in human readable form on a magnetic track on a record medium. A viewer, having a viewing window containing microencapsulated...
4074240 Magnetoelastic storage device  
Information storage is achieved in powdered magnetoelastic materials. Such powdered magnetoelastic materials have the capability of achieving long storage times of information and also allow...
4054922 Apparatus for forming an erasable record of the value of a measured quantity  
The record carrier is made of a material which can be caused to assume a dark state by passing a magnetic field through the record carrier normal thereto. It can be caused to assume a light state...
4032980 Recorded magnetic member viewing apparatus  
Apparatus for viewing latent magnetic images on recorded magnetizable recording members. The apparatus comprises means for advancing a magnetizable recording member bearing a latent magnetic image...
3998160 Magnetic ink printing method  
A method of printing wherein magnetic particles dispersed in an ink are selectively orientated prior to printing onto a document where the particles are aligned on a carrier while the ink is in a...
3988738 Display device utilizing magnetic storage  
An electromagnetic transducer in the form of a single wire shaped as a one-turn helix records a signal pattern on a web of magnetic material. The portion of the web including the recorded signal...
3982334 Compartmentalized micromagnet display device  
A device adapted to provide a visual display under the influence of an exterior magnetic field which comprises a plurality of rotatable, multi-colored, non-magnetically interactive, permanently...
3972715 Particle orientation imaging system  
An imaging system wherein an imaging member comprising a layer of softenable substantially electrically insulating material containing a dispersion of randomly oriented electrically photosensitive...
3947879 Multi-color recording medium responsive to force fields and apparatus for recording on the medium  
A multi-color recording medium responsive to a magnetic or an electrostatic recording field for recording an input signal thereon and having a continuous web of a transparent encapsulating...
3927393 MAGNETIC RECORD MEDIUM AUTHENTICATION SYSTEM  
A system for authenticating a record medium. The record medium necessarily includes a magnetic recording layer containing uniformly dispersed magnetizable material having magnetic anisotropy...
3879754 Magnetic field producing apparatus  
A magnetic field producing structure has a pair of U-shaped elongated core members with the end faces of the legs of one of the core members arranged in a confronting relationship across a...
3878367 Magnetic security document and method for making same  
A security document having a magnetic recording layer containing uniformly dispersed magnetizable material having magnetic anisotropy wherein the material at a plurality of selected locations is...
3845499 APPARATUS FOR ORIENTING MAGNETIC PARTICLES HAVING A FIXED AND VARYING MAGNETIC FIELD COMPONENT  
A recording medium is shown which is responsive to a magnetic or an electrostatic field for recording an input signal thereon having a continuous web of an encapsulating or entrapping material...
3823406 METHODS, APPARATUS AND MEDIA FOR MAGNETICALLY RECORDING INFORMATION  
Methods, apparatus and media for magnetically recording at least first and second color components of an image employ anisotropic magnetizable particles in a matrix. The first color component is...
3810191 MULTI-STYLUS THROUGH FIELD RECORDING HEAD  
A magnetic recording head for recording on a magnetically responsive recording medium is arranged to incorporate a core structure of high magnetic retentivity material with individual core members...
3757353 INFORMATION RECORDING BY ARTICLE ORIENTATION  
An information recording medium has magnetizable anisotropic particles located in a plurality of spaced first matrices which have a first state in which the particles are maintained substantially...
3699587 P.P.I. DISPLAY UTILIZING MAGNETIC RECORDING APPARATUS  
A P.P.I. type display uses a display face having a suspension of magnetically orientable and light reflective particles which are orientable between two incident light reflecting states. A...
3683405 MAGNETIC DEFORMATION RECORDING  
A method of recording information provides, in a deformable magnetic recording medium, deformed portions representative of the information, and magnetizes these deformed portions differently from...
3683382 RECORDING MEDIUM RESPONSIVE TO FORCE FIELDS AND APPARATUS FOR RECORDING AND REPRODUCING SIGNALS ON THE MEDIUM  
A recording medium is shown which is responsive to a magnetic or an electrostatic field for recording an input signal thereon having a continuous web of an encapsulating or entrapping material...
3673597 METHOD AND APPARATUS FOR RECORDING AND/OR DISPLAYING IMAGES UTILIZING THERMOMAGNETICALLY SENSITIVE MICROSCOPIC CAPSULES  
A method of producing a record of original images wherein the images are converted to equivalent heat images, the heat images are then transferred to a heat and magnetic field sensitive medium,...
3662397 THERMAL SENSITIVE RECORDING MEDIUM RESPONSIVE TO FORCE FIELDS AND APPARATUS FOR USING SAME  
A recording medium is shown which is responsive to a magnetic or an electrostatic field for recording an input signal thereon. The recording medium includes a continuous web formed from a thermal...
3633720 ALPHANUMERIC PRINTING DEVICE EMPLOYING MAGNETICALLY POSITIONABLE PARTICLES  
A printing device is shown that uses a specially adapted paper upon which alphanumeric characters may be printed without impact and from which erroneously printed characters may be removed. The...
3394355 Information storage timing arrangement  
3309709 Method of permanently recording on a magnetizable medium by abrading  
3292171 Display device depositing suspended particles by selective magnetization of a viewable surface  
3238511 Subatomic resonance storage and recording process and article  
3221315 Magnetic recording medium utilizing microscopic capsules containing magnetic material  
3200386 Digital phase-displacement reduction combination  
3171106 Information storage system  
3106607 Apparatus for recording and reproducing images on magnetic tape  
3013206 Magnetic reader  

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