Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03G - Electrography; Electrophotography; Magnetography › G03G 19 - Processes using magnetic patterns; Apparatus therefor
Patents for G03G 19 - Processes using magnetic patterns; Apparatus therefor (443)
03/1982
03/31/1982EP0048637A1 Method of reflex thermomagnetic recording
03/23/1982US4321606 Magnetic type printing process and multicopy magnetic printing machine
03/03/1982EP0046683A2 Magnetic imaging method and apparatus
03/02/1982US4318136 Magnetic recording apparatus and method
03/02/1982US4317630 Copying machine
02/1982
02/09/1982US4315267 Method of magnetofluidic recording
02/02/1982US4314257 Thermomagnetic recording apparatus
01/1982
01/26/1982EP0039728A4 Magnetic printing head having a high signal-to-noise ratio.
01/26/1982CA1117179A1 Magnetic image decorator
12/1981
12/01/1981US4303749 Single component magnetic toner with epoxy resin
11/1981
11/18/1981EP0039728A1 Magnetic printing head having a high signal-to-noise ratio.
11/03/1981CA1111895A2 Direct current bias fields for magnetic printing
10/1981
10/21/1981EP0038174A2 Process of forming a magnetic toner resist using a transfer member
10/13/1981US4294901 Thermoremanent magnetic imaging member and system
10/06/1981US4293634 Binders, aggregation, crystallization
09/1981
09/29/1981US4292120 Process of forming a magnetic toner resist using a transfer film
09/29/1981CA1109922A1 Toner transfer system
09/29/1981CA1109920A1 Method and apparatus for nozzleless magnetofluidic recording
09/15/1981US4289837 Development method and apparatus
08/1981
08/25/1981CA1107801A1 Magnetic printing process and apparatus
08/25/1981CA1107557A1 Magnetographic imaging member and the method of its use
08/18/1981CA1107343A1 Ac corona to remove background from the transfer member of a thermomagnetic copier
08/18/1981CA1107342A1 Electrostatic transfer of magnetically held toner images
08/18/1981CA1107135A1 Method and apparatus for magnetic printing
08/11/1981CA1106675A1 Electrophotographic-magnetic duplex imaging method
08/04/1981CA1106436A1 Transverse recording head for magnetic printing
07/1981
07/28/1981CA1105759A1 Method for forming a spray dried toner of superparamagnetic particles dispersed in polymer
07/14/1981CA1104809A1 Friction contact toning means
06/1981
06/30/1981CA1104187A1 Magnetic imaging system
06/16/1981CA1103014A1 Magnetic auger
06/10/1981EP0029877A1 Magnetic printing head and method of manufacture
06/09/1981CA1102617A1 Printing head and brush configuration for a magnetic printer
06/02/1981US4271248 Polymeric esterification product of a dicarboxylic acid and a diphenol
06/02/1981CA1102401A1 Magnetic image decorator
06/02/1981CA1102395A1 Magnetic recording head
06/02/1981CA1102394A1 Magnetic latent image creation
05/1981
05/19/1981US4268872 Magnetic duplicator with multiple copies
05/19/1981CA1101268A1 Process for magnetically transferring a powder image
05/14/1981WO1981001329A1 Magnetic printing head having a hight signal-to-noise ratio
05/12/1981CA1101047A1 Excessive magnetic developer displacement system
04/1981
04/07/1981CA1098762A1 Process for magnetically transferring a powder image
03/1981
03/17/1981US4257051 Apparatus and method for driving a magnetic print head
03/17/1981CA1097802A1 Controlled-width-synchronization of recorded pixels
03/03/1981US4254206 Using a magnetizable metal or alloy dispersed in a thermoplastic binder
02/1981
02/04/1981EP0023452A1 Printing apparatus with pulverulent magnetic toner
01/1981
01/27/1981CA1094631A1 Technique of character generation on magnetic tapes
01/20/1981US4246588 Particle feed arrangement for applying solid particles to the image carrier of a non-impact printer
01/20/1981CA1094142A1 Flash lamp configuration for magnetic imaging
12/1980
12/30/1980US4242400 Magnetically structured materials
12/30/1980CA1092638A1 Direct current bias fields for magnetic printing
12/16/1980CA1091759A1 Magnetic inking apparatus for pulsed electrical printing
12/02/1980CA1090864A1 Magnetic interpositive method
11/1980
11/11/1980US4233382 Electrostatic transfer of magnetically held toner images
11/04/1980US4232323 Magnetographic apparatus
10/1980
10/28/1980US4230069 Particle feed arrangement for applying solid particles to the image carrier of a non-impact printer
08/1980
08/19/1980US4218688 Deformographic storage display system
08/06/1980EP0013715A1 Method of printing magnetic images and magnetic recording apparatus
08/05/1980US4216282 AC corona to remove background from the imaging member of a magnetic copier
07/1980
07/29/1980CA1082803A1 Constant wavelength magnetic recording
07/29/1980CA1082614A1 Magnetic toner scavenging system
07/08/1980CA1081308A1 Recording head array with passive pole
06/1980
06/10/1980US4207101 Process for magnetically transferring a powder image
05/1980
05/27/1980US4205120 Nonferrous, nonmagnetic interlayer
05/06/1980US4202022 Magnetic transfer record film and apparatus for magneto-optically reading magnetic record patterns using the same
04/1980
04/29/1980US4200891 Electromagnetic bond photocopy device
03/1980
03/25/1980US4195303 Magnetic printing process and apparatus
03/20/1980WO1980000501A1 Carrier for image recording of the image thereon and a device for implementation of that method
03/11/1980CA1073515A1 Magnetic developer removal system
03/04/1980US4191961 Magnetic printing process and apparatus
02/1980
02/12/1980CA1071764A1 Input device for scanning documents with magnetic printing
02/12/1980CA1071691A1 Development of graphic images to yield magnetic latent images
01/1980
01/22/1980US4185130 Toner particles fluidized into a standing wave over doctor knives
12/1979
12/11/1979CA1067950A1 Multi-color recording medium responsive to force fields and apparatus for recording on the medium
11/1979
11/27/1979US4176362 High density magnetic image recording head
11/20/1979US4175265 Toner transfer system
11/06/1979CA1065952A1 Thermomagnetic imaging apparatus
11/06/1979CA1065951A1 Donor transfer of magnetic toner
10/1979
10/09/1979US4170287 Magnetic auger
10/03/1979EP0004383A2 Process for the production of a resist by a magnetic printing process, a dry particulate resist composition obtained therefrom and apparatus for manufacturing a circuit board
08/1979
08/07/1979US4163979 Method and apparatus for recording latent images on a magnetic medium in magnetography
07/1979
07/17/1979US4161738 Method and apparatus for recording latent images for magnetography
03/1979
03/27/1979US4146898 Non-contact magnetic toner transfer system
02/1979
02/06/1979US4138685 Recording with imagewise alteration of magnetic attraction of donor
01/1979
01/24/1979EP0000409A1 Process for magnetically transferring a powder image
01/24/1979EP0000408A1 Process for magnetically transferring a powder image
01/16/1979US4135195 Magnetographic printing apparatus
01/16/1979US4135194 Rotary head magnetic recording at fixed wavelength with varying speeds
12/1978
12/05/1978CA1043588A1 Powdery material for magnetic recording medium and process for production of same
11/1978
11/21/1978US4126494 Magnetic transfer record film
10/1978
10/24/1978US4122456 Printing head and brush configuration for a magnetic printer
10/24/1978US4122455 Magnetic imaging for photocopying
10/24/1978US4122209 Fluidized standing wave of toner particles
10/24/1978US4121964 Apparatus and methods for fabrication of magnetic printing belt
09/1978
09/26/1978US4117498 Magnetic printing process and apparatus
09/19/1978US4115786 Constant wavelength magnetic recording
09/05/1978US4112156 Magnetic toner recovery method using alternating magnetic field polarities
08/1978
08/29/1978US4110758 High quality printing system with constant intermittent tape drive
08/15/1978US4107742 Method and apparatus for recording graphic information magnetically
08/08/1978US4106028 Method and apparatus for forming magnetic images by piezoelectric coupling between an optical image and a magnetostrictive imaging component
07/1978
07/18/1978US4101943 Controlled-width-synchronization of recorded pixels
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