Article Having Latent Image Or Transformation Patents (Class 428/29)
  • Patent number: 6106910
    Abstract: A print medium having a sense mark comprised of a near infrared fluorescent component which triggers automated operations without interference from printed text or images or the substrate. The near infrared fluorescent pigments are protected from contact with oxygen using a polymer resin. Apparatus for dispensing printed media comprises a print medium of this invention, detector for sensing the mark, a logic element for locating the mark and a paper transporting apparatus controlled by the logic element. The apparatus can be incorporated in business machines such as automatic teller machines, cash registers, ticket dispensing machines and coupon dispensing machines.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: August 22, 2000
    Assignee: NCR Corporation
    Inventors: Yaoping Tan, Maurice W. Lewis, Bernard J. Jergens
  • Patent number: 6106932
    Abstract: A method and system for creating game cards incorporates a removable scratch-off coating to hide printed symbols. The card is constructed so that the scratch-off coating is selectively retained by the card, in the form of symbols, when the scratch-off coating is removed. The selective retention of scratch-off coating material to the card is accomplished by incorporating into the card, between the substrate and the scratch-off coating, a clear release coat laser-engraved to form symbols. A laser creates the desired symbols in the release coat. The laser may be manually controlled or computer-controlled using software and drivers for the laser assembly. When the scratch-off coating material is applied to the card during construction, it adheres directly to the substrate in the form of symbols. When a player rubs the scratch-off coating material, it releases from the release coat and remains adhered to the substrate to create the symbols.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: August 22, 2000
    Assignee: Dittler Brothers, Inc.
    Inventors: James J. Carides, Benny R. Rich
  • Patent number: 6089614
    Abstract: A security device comprises a substrate (1) having a viewing region (3) which is provided on one side with first indicia (7) and on the other side with second indicia (9) overlying the first indicia. The substrate carries an obscuring material (10) aligned with the second indicia (9) so as to prevent at least the second indicia from being viewed from the one side of the substrate under reflected radiation. The substrate is sufficiently transparent while the obscuring material permits the passage of sufficient transmitted radiation to allow the second indicia (9) to be viewed from the one side of the substrate under transmission conditions.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: July 18, 2000
    Assignee: De La Rue International Limited
    Inventors: Paul Howland, Kenneth John Drinkwater, Brian William Holmes
  • Patent number: 6086966
    Abstract: A method for authenticating a textile product, wherein a colorless composition is applied to at least one portion of at least one thread of the textile product. The composition comprises one of a pair of a colorformer and an activator which react when mixed to produce a spectral response. The textile product is authenticated as genuine by applying the other of the pair of the colorformer and activator to at least one portion of the at least one thread to produce the spectral response. The textile product may be a thread or a woven label.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: July 11, 2000
    Assignee: Nocopi Technologies, Inc.
    Inventors: Arshavir Gundjian, Abraham Kuruvilla
  • Patent number: 6068895
    Abstract: A woven security label is woven from threads of synthetic fiber, which interweaves a piece of check warp or weft yarn. The check warp or weft yarn comprises one or more pieces of detectable filament containing a small amount of inorganic fluorescent substance. The check warp or weft yarn is substantially colorless in ordinary sunlight, electric light or the like but reversibly changes color under influence of specific UV light.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: May 30, 2000
    Assignee: Nippon Dom Co., Ltd.
    Inventor: Yoshihiro Kimura
  • Patent number: 6045881
    Abstract: A media for restricting the copying of a document utilizing one or more microdots that are embedded in said document for providing a non-visual, but machine detectable mark or marks. The detected means for detecting the presence of one or more microdots in said document inhibits a copy machine from copying the document.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: April 4, 2000
    Assignee: Eastman Kodak Company
    Inventors: John Gasper, James Edward Sutton
  • Patent number: 5985792
    Abstract: An apparatus for coating fine particles to produce a thermal transfer image receiving sheet having: a base material supply section 1 for supplying a paper base material; a coating storage section 21 for storing a coating including white fine particles; a development section 2 having a sleeve 22 for holding the coating supplied from the coating storage section 21, a blade 23 for controlling a thickness of the coating held by the sleeve 22, a charge drum 24 having a photosensitive material for absorbing the coating in a dispersed manner from the sleeve 22, and a dot latent image forming device 25 for forming a dispersed dot latent image on the charge drum 24 by irradiating a laser beam to the charge drum 24 to absorb the coating on the charge drum 24 in said dispersed manner on the basis of the dispersed dot latent image; a transfer section 3 for electrostatically transferring the coating absorbed by the charge drum 24 onto the paper base material in the dispersed manner; a fixing section 4 having a heat roller
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: November 16, 1999
    Assignee: Pioneer Electronic Corporation
    Inventors: Toshiyuki Miyadera, Fumio Matsui, Takanori Mitsuhata, Yasuo Hosoda
  • Patent number: 5958528
    Abstract: The invention relates to a data carrier, such as an identity card, credit card or the like, with at least one plastic layer having first diffusely light-scattering properties at least in a partial area due to its surface quality. In this area information is provided by means of a laser in the form of local changes of surface quality which have second diffusely light-scattering properties so that the information is readable at least at a certain viewing angle but has no color contrast with its surroundings.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: September 28, 1999
    Inventor: Otto Bernecker
  • Patent number: 5925440
    Abstract: A card is disclosed that incorporates a removable scratch-off coating to hide printed symbols. The card is constructed so that the scratch-off coating is selectively retained by the card, in the form of symbols, or as a background for symbols, when the scratch-off coating is removed. The selective retention of scratch-off coating material to the card is accomplished by incorporating into the card, between the substrate and the scratch-off coating, a clear release coat patterned to form symbols. When the scratch-off coating material is applied to the card during construction, it either adheres directly to the substrate in the form of symbols, or it adheres to the substrate in the background for the symbols, depending on how the release coat is applied. When a player rubs the scratch-off coating material, it releases from the release coat and remains adhered to the substrate to create either symbols or the background for symbols.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: July 20, 1999
    Assignee: Dittler Brothers Incorporated
    Inventors: Ashraf T. Farag, James J. Carides
  • Patent number: 5906871
    Abstract: A latent image comprising a first substance formed on a substrate of a second substance having a surface tension different from a surface tension of the first substance, the first substance and the substrate having a difference of 0.1 to 100 nm in height from each other. The latent image is formed by a method comprising the-step of subjecting a substrate of a first substance to a chemical treatment or a physical treatment to form a surface of a second substance which has a surface tension different from a surface tension of the first substance and has a difference of 0.1 to 100 nm in height from the substrate on part of the substrate. The latent image is developed by a method comprising the steps of contacting a latent image comprising a first substance formed on a substrate of a second substance having a surface tension different from a surface tension of the first substance with a third substance different from the first substance and the second substance, and applying a developing ray to the latent image.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: May 25, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuo Takebe, Koichi Kugimiya, Norihisa Mino, Tohru Nakagawa
  • Patent number: 5871827
    Abstract: This application discloses two-coat and three-coat automotive finishes, articles coated by an automotive finish and a process for their preparation wherein polychromism is achieved in the finish by incorporating an opaque, light interference pigment into the topcoat or a midcoat. The invention further relates to a coating composition which contains an opaque interference pigment at a pigment to binder ratio of less than 7/100.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: February 16, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Edward Ephraim Jaffe, Franklin Roberts Hilfiker, Milton John Misogianes
  • Patent number: 5856266
    Abstract: A media for restricting the copying of a document utilizing one or more microdots that are embedded in said document for providing a non-visual, but machine detectable mark or marks. The detected means for detecting the presence of one or more microdots in said document inhibits a copy machine from copying the document.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: January 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: John Gasper, James Edward Sutton
  • Patent number: 5837333
    Abstract: The present invention provides a high-luminance opal-like diffraction chromogenic film having no dead angle, which comprises a hexagonally close-packed grating monolayer film of micron-order particulates.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: November 17, 1998
    Assignee: Research Development Corporation of Japan
    Inventors: Kuniaki Nagayama, Antony S. Dimitrov
  • Patent number: 5820951
    Abstract: A product container having a wall defining a receptacle for a product, and first structure on the wall changeable from a first state to a second state as an incident of the first structure being heated above a first predetermined temperature. The first structure is changeable from the second state to the first state as an incident of the first structure being cooled below a second predetermined temperature below the first predetermined temperature. The first structure remains in the first state with the first structure in a temperature range including temperatures above the second predetermined temperature.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: October 13, 1998
    Assignee: Codell Industries, Inc.
    Inventor: John P. Osborne
  • Patent number: 5780124
    Abstract: An ultraviolet enhanced oil painting includes a plurality of sequentially disposed layers of oil based paints. At least one of the layers includes a transparent, ultraviolet enhanced, luminescent pigment mixed with the paint prior to layering. The ultraviolet enhanced paint layer produces a luminescent effect when subject to light. The painting exhibits one visible characteristic when subjected to ambient light conditions and exhibits at least one different visible characteristic when subjected to ultraviolet light. The ultraviolet enhanced paint layer can be disposed over the non-enhanced paint layer, the ultraviolet enhanced paint layer can be disposed between a backing media, such as a canvas and the non-enhanced paint layer, and the ultraviolet enhanced paint layer can be disposed between layers of the non-enhanced paint. A method of creating an ultraviolet enhanced oil painting includes sequentially disposing a plurality of layers of oil based paints onto a backing media such as a canvas.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: July 14, 1998
    Inventor: Jacqueline Ripstein
  • Patent number: 5733235
    Abstract: A rubber covered roll of a structure that a rubber layer is formed on the surface of a roll-like base is provided. The rubber layer is a layer formed of a vulcanizate of a rubber composition comprising 25-95 wt. % of copolymer rubber (A) obtained by copolymerizing 28-70 mol % of an alkylene oxide, 28-70 mol % of an epihalohydrin and 2-15 mol % of an ethylenically unsaturated epoxide, and 5-75 wt. % of unsaturated rubber (B). The rubber covered roll does not contaminate any photosensitive member, stably has a low electric resistance, and is low in dependence of electric resistance on environment and in hardness. An image-forming apparatus equipped with the rubber covered roll as a development roll or charging roll, and a rubber composition for the rubber covered roll are also provided.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: March 31, 1998
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Tetsuo Waku, Hiromitsu Kikuchi, Takeshi Ooishi, Michiharu Yogosawa
  • Patent number: 5731060
    Abstract: A holographic laminate to be used in a vehicular windshield or windowpane and an architectural window glass in order to display a variety of images for the expressive and decorative purposes. The holographic laminate comprises a transparent plate on which a hologram is mounted. An ultraviolet ray absorbing film is disposed on a side of the hologram through which side sunlight enter the hologram. A layer of an adhesive is disposed to secure the hologram to the transparent plate layer. A barrier film is disposed between the hologram and the adhesive layer to protect the hologram from being chemically affected by the adhesive layer.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: March 24, 1998
    Assignee: Central Glass Company, Limited
    Inventors: Masahiro Hirukawa, Takashi Yamate
  • Patent number: 5728449
    Abstract: An anti-copy film or layer for originals or documents comprises according to the invention transparent film material having a multiplicity of at least partially opaque and possibly reflective areas arranged at distances from one another which are arranged as screens on the film surfaces essentially in horizontal planes, in particular parallel to one another, but offset, so that information on an original lying under this film or layer is masked in an approximately vertical viewing direction and is visible in the direction of a predefined viewing angle. Expedient production methods enable the use of photographic techniques.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: March 17, 1998
    Assignee: EMTEC Magnetics GmbH
    Inventors: Helmut Steininger, Peter Heilmann, Peter Hewkin
  • Patent number: 5624731
    Abstract: A display which when illuminated by a light source is adapted to present selectively to an observer colors and images that depend both on the angular position of the observer and on the angular position of the light source relative to the display. The display includes a substrate on which is coated an opaque base layer having a color image printed thereon. Coated over the base layer is an intermediate layer of transparent material having interference pigment particles dispersed therein which impart goniochromatic properties to this layer, the color seen by the observer depending on said angular positions. Overlying the intermediate layer is a retroreflectivity layer formed by transparent beads whereby light reflected from the base layer or from the intermediate layer, as seen by the observer, passes through the retroreflectivity layer to enhance the brilliance of the colors or images presented to the observer.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: April 29, 1997
    Inventor: Alexander Desjardins
  • Patent number: 5604280
    Abstract: The invention concerns photochromic compounds with general formula (I): ##STR1## where R.sup.a, R.sup.b and R.sup.c represent hydrogen; alkyl, aryl, OR, SR, COR or COOR, where R represents hydrogen, alkyl or aryl, amino with formula NR.sub.1 R.sub.2, where R.sub.1 and R.sub.2 each represent hydrogen, alkyl, cycloalkyl, or aryl, R.sub.1 and R.sub.2 may together form a heterocycle containing four to seven members with the nitrogen atom and may intracyclically contain one or more heteroatoms selected from nitrogen, oxygen, sulphur, or a halogen atom; a mono- or polyhaloalkyl; an NO.sub.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: February 18, 1997
    Assignee: Essilor International Compagnie Generale D'Optique
    Inventors: Jean L. Pozzo, Robert Guglielmetti, Andr e Samat, Vladimir Lokshin, Guena elle Harie
  • Patent number: 5601887
    Abstract: Cards and methods of securing hidden symbols on cards are disclosed. The cards, such as instant-win lottery tickets, utilize continuous overprint inks that mask the boundaries between their "secure" and "unsecure" portions to inhibit unscrupulous players from successfully tampering with them. By reformulating the overprint inks to permit a single set to be applied to both portions of a card, more vibrant and aesthetically-pleasing graphics may be displayed as well while utilizing fewer printing stations during the printing process.Alternatively or additionally, the cards may be embossed for added security. Raising portions of the secure area of a card above the remainder of its surface produces irregular features, thereby inhibiting both improper removal of the upper latex or other coating and photo reproduction of the card. The varying card height caused by embossing further inhibits heat-based tampering, as heat transfer to the irregular surface is no longer uniform.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: February 11, 1997
    Assignee: Dittler Brothers Incorporated
    Inventors: Benny R. Rich, James J. Carides, Jon M. Brawner
  • Patent number: 5595590
    Abstract: A method and compositions for authenticating a document or article comprises applying a mixture of a carrier, a leuco dye and an activator to a surface of a document or article, wherein the leuco dye and activator react in response to a rubbing force applied to the surface to change color and wherein the activator is at least one selected from the group consisting of amidophenol, anilides with hydroxyl groups and benzoamides with hydroxyl groups and authenticating the document or article by applying a rubbing force to the surface to effect a color change.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: January 21, 1997
    Assignee: Nocopi Technologies, Inc.
    Inventors: Blake Q. Belding, JoAnn Silknitter, Kevin B. Stevenson, Terry W. Stovold
  • Patent number: 5569522
    Abstract: An anticopying film (2) for covering documents (1) appears opaque in vertical plan view (5) as a result of total reflection for protection against copying and appears transparent in the oblique viewing direction (6), the film having an irregular sawtooth structure (3). This makes it virtually impossible to produce an identical second film with the aid of which, by placing said second film on top, the effect of the anticopying film (2) might be eliminated.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: October 29, 1996
    Assignee: BASF Magnetics GmbH
    Inventors: Helmut Steininger, Alan Green, Michel Munch, Peter Heilmann
  • Patent number: 5569512
    Abstract: Cards and methods of securing hidden symbols on cards are disclosed. The cards, such as instant-win lottery tickets, utilize continuous overprint inks that mask the boundaries between their "secure" and "unsecure" portions to inhibit unscrupulous players from successfully tampering with them. By reformulating the overprint inks to permit a single set to be applied to both portions of a card, more vibrant and aesthetically-pleasing graphics may be displayed as well while utilizing fewer printing stations during the printing process.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: October 29, 1996
    Assignee: Dittler Brothers Incorporated
    Inventors: Jon M. Brawner, James J. Carides, Benny R. Rich, William F. Estep, Jr.
  • Patent number: 5529828
    Abstract: A method and structure for enhancing electromagnetic barrier properties including a substrate, a coating deposited upon the substrate, and a plurality of sets of patterns microembossed upon the surface of the coating layer for increasing the barrier properties of the structure. The plurality of sets of microembossed patterns each having a line density between about 100 and 50,000 lines per square centimeter.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: June 25, 1996
    Assignee: Flexcon Company, Inc.
    Inventors: Kirit Patel, John R. Pennace
  • Patent number: 5520385
    Abstract: An article for assembly with the application of heat to a selected temperature range to activate a thermoresponsive constituent, wherein the article avoids deterioration due to heating above the selected temperature range by including a thermochromatic material visibly disposed on the article. The thermochromatic material provides a visual indication in response to the thermoresponsive constituent being heated to the selected temperature range.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: May 28, 1996
    Assignee: Composite Development Corporation
    Inventors: Peter A. Quigley, Steven C. Nolet
  • Patent number: 5478614
    Abstract: A radiation thermally imageable, solid toner addressable article comprises a substrate having on at least one surface thereof a layer comprising a) a solid binder which can be converted to a supercooled liquid upon heating and subsequent cooling to room temperature, b) a dye which absorbs radiation (at the wavelength of the imaging device,, e.e., ultraviolet, visible [especially the red], and infrared wavelengths) and converts infrared radiation to thermal energy, and c) a fluorinated surfactant. A directly thermally addressable article does not require the radiation absorbable dye.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: December 26, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David A. Morgan, Jon A. Bjork
  • Patent number: 5476830
    Abstract: A latent image printing method and apparatus uses a substrate with one main surface having a covering comprising one of a first pair of a color developer and color former dye defining a background color in conjunction with the one main surface, wherein the color developer and the color former dye react when mixed to produce a first spectral response which is visible relative to the background color and a continuous coating over the covering which is non-porous with respect to the other of the pair and solvent-resistant to the other of the pair. The coating above selected portions of the covering corresponding to a desired latent image is removed.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: December 19, 1995
    Assignee: NOCOPI International, Inc.
    Inventor: Arshavir Gundjian
  • Patent number: 5437897
    Abstract: An anti-counterfeit latent image formation object for bills, bank notes, urity papers, credit cards, passports, valuable printing matters, and the like comprising a main body, a plurality projections and recesses means formed on the main body in such a manner as to exhibit various kinds of patterns, in which the various kinds of patterns comprise straight image lines forming a pattern, a relief pattern, or a combination of the pattern and the relief pattern; a plurality of straight lines printed on an upper surface of the projections and recesses at predetermined spaces, the straight lines being printed in different colors from that of the main body itself. The patterns consisting of letters, figures, etc. can be visually recognized only when the anti-counterfeit latent image formation object is viewed from an adequate angle. A method for making the anti-counterfeit latent image formation object is also disclosed.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: August 1, 1995
    Assignee: Director-General, Printing Bureau, Ministry of Finance, Japan
    Inventors: Toshinori Tanaka, Satoru Nishiyama, Masaharu Koyama
  • Patent number: 5435010
    Abstract: An article of clothing that changes color when exposed to varying moisture levels within the article. The article has a body with an outer surface, and a moisture sensitive coating disposed upon the outer surface of the body that changes color when in contact with varying moisture levels in the body.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: July 25, 1995
    Inventor: Robert E. May
  • Patent number: 5425978
    Abstract: Novel substrates bearing visible information applied thereto give indiscernible, for example illegible, photocopies when the information applied using colorant combinations of at least one emitting and at least one reflecting colorant whose shades upon viewing without fluorescence being perceived are similar or identical.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: June 20, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Berneth, Uwe Claussen
  • Patent number: 5422155
    Abstract: A laminated composite noteboard using smoothly finished, glossy surface plastic material for the surface laminate(s), provides an efficient and convenient writing or marking surface for writing or marking implements such as erasable felt tip pens and the like. The noteboard may include a core of a variety of materials, such as fiberboard, chipboard, or hard or soft wood plywood, and may use a variety of surface laminate sheets to provide the required smooth finish. The edges may be finished in a variety of ways, from the rounding or relieving of corners to eliminate sharp corners and edges, to sealing and/or installing decorative trim to preclude moisture absorption and warpage. The opposite or non-writing side of the noteboard is also preferably sealed, but may be sealed by using a second glossy finish overlay to provide two opposite writing surfaces, if desired.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: June 6, 1995
    Inventor: Daniel D. Spence, Jr.
  • Patent number: 5401561
    Abstract: Basic commodity or collector's object in particular of a high replacement collector's value with an identification label, whereby the identification label is formed in material of the object itself as an optical mark which is not visible if illuminated with a light source with a wavelength range within the sensitivity range of the human eye but is visible to the human eye if illuminated with a light source outside this sensitivity range the label being situated in an area of a housing surface or other area of the which is optically transparent for at least a part of the wavelength range within the sensitivity range of the human eye and for an additional wavelength range which is outside the sensitivity range of the human eye and which is used to read the label, whereby the undamaged nature of the area is at least to a high degree important when evaluating the replacement or collector's value.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: March 28, 1995
    Assignee: BORUS Spezialverfahren und -gerate im Sondermaschinenbau GmbH
    Inventors: Oleg I. Fisun, Lev N. Lupichev, Viktor V. Maklakov, Richard Schimko
  • Patent number: 5393580
    Abstract: A method for preparing high resolution negative-working wash-off relief images comprising the sequential steps of: (a) providing a non-photosensitive, aqueous processable layer, preferably on a substrate, said layer comprising a dispersion of solvent-coalesceable particles in a polymer matrix; (b) imagewise applying an ink to the non-photosensitive layer to coalesce the particles and form a water-insoluble polymer blend between the particles and the polymer matrix in the ink applied areas; and (c) washing the layer with an aqueous developer solution to remove the non-ink applied areas of the layer.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: February 28, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Sheau-Hwa Ma, Andrew E. Matthews
  • Patent number: 5310576
    Abstract: A method and structure for enhancing electromagnetic barrier properties including a substrate, a metallic layer deposited upon the substrate by vacuum metalization, and a plurality of sets of patterns microembossed upon the surface of the metallic layer for increasing the barrier properties of the structure. The plurality of sets of microembossed patterns each have a line density between about 100 and 50,000 lines per square centimeter.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: May 10, 1994
    Assignee: FLEXcon Company, Inc.
    Inventors: Kirit Patel, John R. Pennace
  • Patent number: 5296275
    Abstract: A phototranschromic ink suitable for use in a printing machine, including a water soluble, inert, nonionic polymeric resin carrier base having film forming properties, a photo acid or photo base progenitor which releases or takes up protons upon exposure to light, a pH sensitive dye which changes color in response to a change in proton levels, a water compatible non-ionic wetting agent, a water compatible non-ionic thickening agent, a neutral water soluble flow aid; wherein said ink changes color upon exposure to ultraviolet radiation and is of suitable consistency for use in a printing machine.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: March 22, 1994
    Assignee: Xytronyx, Inc.
    Inventors: Peter M. Goman, Sunil Sirdesai
  • Patent number: 5292603
    Abstract: The present invention discloses an image bearing member having a surface layer comprising a high-melting point polyester resin, a cured resin and an antioxidant, and an apparatus which uses the same.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: March 8, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kiyoshi Sakai, Naoto Fujimura, Seiko Nakano
  • Patent number: 5270087
    Abstract: A method, workpiece and the product thereof for making simulated stained glass works of art includes a transparent substrate covered on one side by an opaque scratch-removable coating and on the other side by transparent-ink patterns or solid colors. Portions of the opaque coating are removed to reveal through the transparent substrate, underlying transparent-ink patterns. The partially scratched product "drawing" produces an excellent visual appearance simulative of stained glass when held up to light. The finished product can be affixed to a window for continued enjoyment.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: December 14, 1993
    Assignee: Scratch-Art Company, Inc.
    Inventor: Nathan Polsky
  • Patent number: 5260252
    Abstract: Disclosed is a method and material for producing and developing thermal latent images. Upon imagewise thermal exposure of a heat sensitive recording material, the recording material selectively yields both a latent image and a visually readable image. The latent image may comprise confidential data or text, and may subsequently be rendered visually readable by an authorized recipient.
    Type: Grant
    Filed: July 24, 1990
    Date of Patent: November 9, 1993
    Assignee: Nashua Corporation
    Inventors: Frederick G. Frangie, Roberta R. Arbree
  • Patent number: 5254376
    Abstract: A graphic communication medium is disclosed in which a dry pastel substance is placed in solution and uniformly applied over a substrate such as paper. The substrate may include a drawing beneath the pastel such that areas of the drawing may be highlighted by selectively removing the dried pastel from the area to be highlighted. The highlighted area is then re-covered by rubbing pastel from adjacent areas of the substrate thereover.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: October 19, 1993
    Inventor: Jane S. Grosslight
  • Patent number: 5234798
    Abstract: Structures for items such as promotional materials, game pieces, lottery tickets, security documents and other articles, which feature one or more thermal reactive layers that are activated by heat from a hidden image formed of infrared sensitive, heat generating material such as carbon black preprinted under the thermal reactive layers during manufacture. The thermal reactive layers permit transmission of radiant energy such as infrared to the heat generating, hidden layers. The heated image conducts heat to the thermal reactive layers which employ a coloring agent and a developer which, when exposed to the heat, react or act in concert in order to form a corresponding image on the face of the item.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: August 10, 1993
    Assignee: Dittler Brothers, Incorporated
    Inventors: Byrne E. Heninger, Donna C. Stimpson, Stephen M. Ems
  • Patent number: 5215956
    Abstract: In the color changing print of this invention, plural areas are printed by using plural types of color changing inks which develop into different colors from the substantially invisible colorless state by reaction with a color changing agent. By the emergence of print from colorlessness and by giving changes in the appearing colors, unexpectedness and entertainingness are provided so that an attractive education may be realized.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: June 1, 1993
    Inventor: Kiyoharu Kawashima
  • Patent number: 5211997
    Abstract: A structure exhibiting enhanced barrier properties is disclosed and which comprises:a substrate,a metallic coating formed by vaporization and condensation upon said substrate, said metallic coating having a thickness of about 400A, anda plurality of sets of embossed patterns upon said coating, said plurality of sets of embossed patterns each having a line density between 100 and 50,000 lines per square centimeter, and method of making the structure.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: May 18, 1993
    Inventors: Kirit Patel, John R. Pennace
  • Patent number: 5196243
    Abstract: Printed matters are disclosed, which are printed with the coloring ink that is able to do the short-time fading at which time the color is losen of itself in a relatively short time after once having developed color by interacting with the coloring assistant containing the pH-adjusting agent which loses effect with the passage of time due to the volatility or the desiccation, and further that is able to redevelop color and repeat the above-mentioned short-time fading each time when the above-mentioned coloring assistant is made to act thereon a plural number of times; and which printed matters are suitably used for printing invisibly, for example, the spaces for answers being to stand abreast of the visibly printed spaces for questions in question books.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: March 23, 1993
    Inventor: Kiyoharu Kawashima
  • Patent number: 5188871
    Abstract: A security paper authenticating system comprises, in combination, a security paper carrying both starch and an iodate salt, typically potassium iodate, and an authenticating composition comprising an acidic solution of an iodide salt, typically potassium iodide, the system being such that on applying the authenticating composition to authentic security paper, as by a pen, brush or stamp pad, iodine is generated and a characteristic starch-iodine coloration is produced. The authenticating composition is preferably aqueous or part-aqueous, and is preferably made acidic by means of a weak organic acid such as tartaric acid. The authenticating composition preferably also contains an antioxidant such as ascorbic acid. The invention extends to the paper and the authenticating composition individually.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: February 23, 1993
    Assignee: The Wiggins Teape Group Limited
    Inventor: Peter Collings
  • Patent number: 5173324
    Abstract: A unique hand made graphic artwork print on a paper sheet with a manually hand embossed three dimensional design and a unique coloring process which is transferred to the sheet by hand with a burnisher. A kit for making the prints includes water repellent sheets for making embossing patterns, a hand burnisher, water absorbent art paper, a plastic backing sheet, a plastic area piece, and may include several water soluble pigments in stick form, water soluble felt tips, a water sprayer, colored sheets and envelopes, glue, pencil, and instructional materials for correct and effective use of the aforesaid materials. A method of making the novel graphic artwork print includes the steps of applying dry water soluble pigments upon one or more water repellent embossing patterns, wetting the applied pigment, and manually burnishing the paper over the pigment and patterns to produce the unique embossed graphic artwork print where the paper removes a portion of the pigment when lifted from the colored pattern.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: December 22, 1992
    Inventor: Catherine Newhart
  • Patent number: 5160778
    Abstract: The present invention provides a transfer sheet for marking which comprises a base sheet, a releasant layer, a layer of printed design or like marking (printed layer), a layer of pressure-sensitive adhesive and a release sheet, all superposed in this sequence, the transfer sheet being characterized in that an application film consisting of a film and an adhesive layer is provided over the exposed surface of the printed layer after removing the base sheet and the releasant layer from the transfer sheet.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: November 3, 1992
    Assignee: Kansai Paint Company, Limited
    Inventors: Sadaaki Hashimoto, Takeshi Tomiyama
  • Patent number: 5133707
    Abstract: A composite adhesive fastening tape and tape system for interconnecting printed surfaces, which includes a transparent main film portion with an embossed surface defined logo or symbol or the like and coated on one surface with an adhesive, in the tape system is included a target film portion, which target film portion is optionally decorated by colored numbers, letters, patterns, shapes or figures.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: July 28, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Wallace S. Rogers, Alan J. Sipinen
  • Patent number: 5084309
    Abstract: The invention includes a product and a fabrication method for generating one image in the presence of ambient light and a second different image in the absence of ambient light. This invention can use phosphorescent material to form one of the images. This invention is particularly related to puzzles or novelty artwork for children.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: January 28, 1992
    Assignees: Timothy J. Martin, Russell C. Cline
    Inventors: Lou E. Smith, David W. Box
  • Patent number: 5080940
    Abstract: Provided is a magic mirror device comprising a substrate having a front surface which is mirror-finished while having slight recesses and a rear surface having no protrusion on which nicked marks are formed in stead of protrusions, wherein the thickness of the substrate is less than 10 mm while the depth of nicked marks are less than 20 .mu.m, thereby it is possible to precisely read a latent image on the mirror-finished front surface thereof upon irradiation of light onto the front surface.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: January 14, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Koichi Kugimiya