| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Magnetographic carriage printer | US553926 | 1983-11-21 | US4519000A | 1985-05-21 | Thomas M. Frey; Larry A. Kovnat |
| Magnetographic copier having a movable carriage on which the process stations for recording, developing, transferring and cleaning are mounted. A ribbon of magnetic tape is threaded through the process stations and is held stationary during the image processing, so that the movement of the carriage causes the tape to pass all of the process stations. A CCD array scans segments of a fixed original document and then returns to a start of scan position where it is stepped. The carriage and CCD array are concurrently stepped a distance substantially equal to width of a segment prior to the next scan. The CCD array and carriage are connected by cable and move concurrently. The elements of the CCD array are connected in a one-to-one manner with elements of a magnetic recording head at the recording station. Start of scan is initiated by sensing accurately placed holes in the magnetic tape and width of scan is controlled by marks on a code strip which are detected by the CCD array elements to adjust the number of elements enabled. | ||||||
| 162 | Differential-permeability field-concentrating magnetic read/write head | US472924 | 1983-03-07 | US4494125A | 1985-01-15 | Gilbert D. Springer |
| 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 with the outer pole portion presenting an annular facial expanse surrounding that of the inner pole portion. In another embodiment, each of the two pole portions presents a substantially annular facial expanse with the inner pole being hollow. In both embodiments, the inner pole portion has a magnetic permeability which is significantly lower than that of the outer pole portion. An image unit written on a magnetic-image-storage medium by the head takes the form, generally, of a dot characterized by an appreciably larger magnetic field intensity adjacent its perimeter than inside the perimeter. | ||||||
| 163 | Process and machine for magnetographic printing (IV) | US380406 | 1982-05-20 | US4449133A | 1984-05-15 | Jean-Jacques Eltgen |
| The invention relates to a magnetographic printing process as well as to a machine which enables the production of images in two colors on a print carrier. The machine which carries out said process comprises magnetic heads (13-1 . . . , 13-n) energized by impulses emitted by a pulse generator (26) by means of a current calibrating and reversing device (27) in order to selectively produce on the drum (10) magnetized points having magnetizations of different direction and amplitude, pigment applicator means (40, 42), retouching devices (41, 43) and a transfer station (45) where the pigments deposited onto the drum (10) are transferred to a paper strip (20). The magnetized points designed to produce on the carrier images or parts thereof which must appear in one of said colors all have magnetization intensities of the same amplitude (J.sub.1) and in the same direction and a magnetic polarity which is opposite that of other magnetized points all having magnetization intensities of the same amplitude (J.sub.2), J.sub.2 <J.sub.1. | ||||||
| 164 | Recording head protective overlay and cleaning arrangement | US290272 | 1981-08-05 | US4412263A | 1983-10-25 | Alfred M. Nelson; Houshang Rasekhi; Ronald J. Cieplik |
| A recording head protective overlay arrangement with an alarm capability is provided. The protective overlay is continuously replenishable between the recording surface of the recording head and the recording medium and is movable in a direction opposite to that of the recording medium so as to provide a cleaning function as well as a wear-preventive function. A dispenser cartridge housing the protective overlay is provided which is specially designed to closely conform to the recording head. A pivotable cartridge holder is included for enabling the cartridge to be inserted in a position remote from the recording head and pivotable into an operative position with the recording head. The tape medium itself and various components operatively associated therewith are pivotably mounted, to provide movement of the medium into intimate operative contact with the overlay and the recording head. | ||||||
| 165 | Magnetic toner transfer apparatus | US381924 | 1982-05-26 | US4411512A | 1983-10-25 | Gilbert D. Springer |
| Apparatus for transferring toner magnetically adhering to magnetic images stored in a magnet image-storage medium to a toner-adherable receiving medium such as paper. Included is a platen which presses the paper against the storage medium to form regions of contact and noncontact between the paper and storage medium. A boundary between the two regions is defined by a line of contact. The apparatus also includes magnets for producing a magnetic field in the paper and storage medium which is asymetrical with respect to the line of contact. The field is stronger in the region of noncontact than in the region of contact. In the preferred embodiment, the field originates from a pair of spaced-apart, confronting magnetic poles disposed on a side of the paper opposite from the storage medium. The apparatus is structured to produce selectively a field in the storage medium having a magnetizing force less than or, alternatively, greater than, the coercivity of the storage medium. | ||||||
| 166 | Magnetic imaging | US180730 | 1980-08-25 | US4409598A | 1983-10-11 | J. Kirk Swigert; Darlyn F. Pochan |
| Magnetic imaging apparatus and method wherein a latent magnetic image is created on a magnetizable imaging member comprising a base or web containing a magnetizable component and wherein said imaging member has an overcoating of an electroconductive material. After development of the latent image with a magnetic toner composition, the developed image is transferred by pressure contact to a receiving substrate and fixed thereto. The imaging member provides substantially improved adhesive properties and efficient transfer of the toner particles to the receiving substrate. | ||||||
| 167 | Paper feed and fusing assembly for magnetographic printing apparatus | US292092 | 1981-08-12 | US4408210A | 1983-10-04 | Ronald J. Cieplik |
| Magnetographic printing apparatus includes relatively movable component supports which provide for ready access to a magnetizable recording medium when in an access position and desirably limited length travel path, when in an operative position, for a visual image recording medium adapted to receive a toner-developed image from the recording medium. One such component support is a substrate supporting selective image-producing components for collective movement between access and operative positions and defining a portion of the visual image recording medium travel path. The remaining portion of such path is defined by components fixedly supported for registry with such movable component support in such operative position. | ||||||
| 168 | Process of forming magnetic latent images | US288876 | 1981-07-31 | US4395470A | 1983-07-26 | Koichi Saitoh |
| A process of forming magnetic latent images having an improved resolution and using a simple and high-speed mechanism. A magnetic recording body is heated in a pattern of a picture image to be recorded with a thermal pattern input device such as a thermal head array or laser device. The heated magnetic recording body is then brought into contact with a master magnetic body whereby the magnetized pattern on the master magnetic body is thermomagnetically transferred to the magnetic recording body to form a magnetic latent image thereon. The magnetic pattern on the master magnetic body is periodically variable. The master magnetic body has a Curie point equal to or greater than that of the magnetic recording body, preferably at least 50.degree. C. or higher. | ||||||
| 169 | Magnetic resist printing process, composition and apparatus | US173871 | 1980-07-30 | US4338391A | 1982-07-06 | George R. Nacci; Donald G. Pye, deceased |
| A process of forming an image of toner on a latent magnetic image in a magnetic member followed by direct transfer to and coalescence on a surface to form a resist is disclosed. The surface portion not protected by the transferred resist toner image is then permanently modified by etching or plating. An especially useful toner which forms a resist composition comprises a binder of thermoplastic resin and plasticizer and magnetic material present in the binder, compounded to have a tack transfer temperature of no greater than 110.degree. C. | ||||||
| 170 | Magnetic printing process and apparatus | US75513 | 1979-09-13 | US4323904A | 1982-04-06 | Donald W. Edwards; Emery J. Gorondy |
| Magnetic printing apparatus for forming on a substrate a colored print of an original colored design, said apparatus comprising a ferromagnetic printing means which is imposed on an electrically conductive support; means for forming on the ferromagnetic printing means a magnetic image of a photocolor-separated film positive of the original colored design; means for developing the magnetic image on the ferromagnetic printing means with a toner comprising a ferromagnetic component, a dye and a resin; and means for transferring the developed image to the substrate. Optionally, the apparatus may include: means for adhering the developed image to the substrate; means for fixing said dye on and/or in a substrate; and/or means for removing said ferromagnetic component and said resin. | ||||||
| 171 | Magnetic type printing process and multicopy magnetic printing machine | US89040 | 1979-10-29 | US4321606A | 1982-03-23 | Jean-Pierre Lazzari |
| A magnetic printing process and multicopy magnetic printing machine employing this process is disclosed. The machine comprises a magnetizable carrier 2, magnetic recording transducers 8, an applicator 10 for coating a developer product onto the carrier, a device for application of the carrier coated with the said developer product onto a document 12 which is to be printed and finally a device 16 for erasing the magnetized areas. In accordance with the invention, the developer product utilized contains magnetic particles which are formed by grains whose dimensions are of the order of those of the elementary magnetized areas. The imprint on the document is then produced by pressing. | ||||||
| 172 | Thermoremanent magnetic imaging member and system | US203207 | 1980-11-03 | US4294901A | 1981-10-13 | Frank C. Genovese |
| A magnetic imaging process and imaging member comprising an electrically conductive layer overcoated with an electrically resistive layer wherein a latent magnetic image is formed on the imaging member by heating selected portions thereof. The latent image is then developed by contacting the imaging member with a magnetic toner composition. The developed image is transferred to a permanent substrate and fixed thereto. | ||||||
| 173 | Process of forming a magnetic toner resist using a transfer film | US139110 | 1980-04-10 | US4292120A | 1981-09-29 | George R. Nacci |
| A process of forming an image of toner on a latent magnetic image in a magnetic imaging member followed by transfer to a heated transfer member. The transfer member is formed of a backing sheet coated with polyvinyl alcohol. The toner image is then transferred to a substrate using heat and pressure. The backing sheet portion of the transfer member is then stripped away and the polyvinyl alcohol is washed away with water. The surface portion of the substrate not protected by the transferred resist toner image is then permanently modified by etching or plating. Chemically milled shapes are prepared as well as printed circuits and printing plates. The printed circuits may be formed by (1) etching away areas of a metal surface not protected by the resist, (2) electroless plating on areas not protected by the resist or (3) electroplating areas of a metal surface not protected by the resist, removing the resist, and in the case of (2) and (3), etching away the metal previously covered by the resist. An especially useful toner which forms a resist composition comprises a binder of thermoplastic resin and plasticizer and magnetic material present in the binder, compounded to have a tack transfer temperature of no greater than 110.degree. C. | ||||||
| 174 | Magnetically structured materials | US948497 | 1978-10-04 | US4242400A | 1980-12-30 | Andrew L. Smith; Paul E. Claes |
| Production of a magnetically and visibly detectable two-layer structure by coating a first layer including a binder with a visibly distinct magnetic material in a dispersion comprising a partial solvent for the binder and selectively applying a magnetic field to cause the magnetic material to migrate into the first layer. | ||||||
| 175 | Magnetographic apparatus | US932310 | 1978-08-09 | US4232323A | 1980-11-04 | Norio Kokaji; Kunio Kinoshita; Toshihiro Urano; Katsunori Saito |
| Disclosed is a magnetographic apparatus wherein a large number of copies of the same picture is produced by repeatedly using a recording drum on which a latent image of the picture is recorded, which apparatus is different from a conventional magnetographic apparatus wherein a sequence of processes consisting of a latent image recording process, a process of developing the image and a process of transferring the image is effected for production of each copy. Further disclosed herein are structural elements of a magnetographic apparatus which are suitable for producing a large number of copies of the same picture by repeatedly using a recording drum as described above. | ||||||
| 176 | Deformographic storage display system | US865726 | 1977-12-29 | US4218688A | 1980-08-19 | Lawrence M. Monari |
| A multiple display system for the display of electronically processed data includes a deformographic storage tube in which a deformographically created image pattern is generated. High intensity projection light is directed at the deformographic storage tube and a plurality of separate images of the pattern are displayed by a controlled scanning arrangement. One of the images may be projected upon a thermomagnetic recording medium so as to induce in the thermomagnetic sensitive medium a retained pattern corresponding to the deformographically created image pattern. From the thermomagnetic recording medium, the retained pattern may be transferred to a further recording medium such as through a magnetoxerography process. | ||||||
| 177 | AC corona to remove background from the imaging member of a magnetic copier | US771381 | 1977-03-18 | US4216282A | 1980-08-05 | Donald W. Edwards; Emery J. Gorondy; Arend Van Roggen |
| 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 Curie point. Ferromagnetic toner particles are then applied uniformly to the chromium dioxide layer, so as to adhere only in the magnetized areas. The toner particles are electrostatically transferred to a substrate and fused into position. Alternating current coronas or other static neutralizing devices are used to neutralize unwanted charges on toner particles which would otherwise cause fuzzy images and unwanted background markings on the final copies. | ||||||
| 178 | Process for magnetically transferring a powder image | US922336 | 1978-07-06 | US4207101A | 1980-06-10 | Mathias J. J. M. Vola; Willem T. Draai |
| Transfer of a powder image from a material carrying the image, such as a photoconductive material utilized for indirect electrophotographic copying, is effected magnetically by employing magnetically attractable developing powder for forming the image and bringing the powder image while under the influence of a magnetic field into contact with a first receiving support that comprises a myriad of zones of a first material which are separated from each other by a second material, one of these materials being magnetizable and the other being not magnetizable. The materials preferably are metals giving the first receiving support a durable smooth surface. The zones of the first material have a diameter and inter-distance of, at most, about 5 times and preferably about 1 to 2 times the diameter of the largest powder particles to be transferred, so usually of about 50 to 100 microns. After being transferred magnetically to the first receiving support the powder image is transferred from it, directly or indirectly, to a final receiving support which usually is plain copy paper. | ||||||
| 179 | Magnetic recording element | US934849 | 1978-08-18 | US4205120A | 1980-05-27 | Henri Morizot; Andre Lucan |
| A magnetic recording element made in accordance with the present invention comprises a layer of magnetic material applied to a carrier formed from a material of high magnetic permeability. A layer of non-ferrous, non-magnetic material is interposed between the carrier and the layer of magnetic material. The layer of non-magnetic material has a thickness between 20 and 40 microns. The magnetic recording element enables sharply defined magnetized domains to be obtained and is in a simple and repeatable fashion, by using a process in which the materials applied to the carrier of the element undergo no chemical transformation. To this end, the non-magnetic layer is produced by successively depositing, on the carrier which is used as a cathode, a first layer of copper obtained from an alkaline electrolytic solution, and then a second layer of copper which is obtained from an acid electrolytic solution. | ||||||
| 180 | Magnetic printing process and apparatus | US777242 | 1977-03-15 | US4195303A | 1980-03-25 | Donald W. Edwards; Emery J. Gorondy |
| Magnetic printing process, and apparatus for carrying out same, comprising:(a) forming a magnetic image on a ferromagnetic material which is imposed on an electrically conductive support;(b) developing the magnetic image by decorating same with a ferromagnetic toner comprising a ferromagnetic component and a resin which substantially encapsulates the ferromagnetic component; and(c) transferring the developed image to a substrate. | ||||||
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