Multilayer Patents (Class 430/14)
-
Patent number: 5674583Abstract: An optical tape including an optical recording layer for permitting information to be optically recorded thereon and a light-reflective magnetic layer; the light-reflective magnetic layer which reflects light projected onto the recording layer, also permits magnetic recording or magneto-optical recording to be performed thereon, thereby increasing a storage capacity of the optical tape remarkably; further, the optical tape is provided with a layer to form guiding grooves for tracking control, which layer to form guiding grooves is made up of ultraviolet-hardening resin, photo-resist, or a photochromic material.Type: GrantFiled: June 5, 1995Date of Patent: October 7, 1997Assignee: Sharp Kabushiki KaishaInventors: Junichiro Nakayama, Hiroyuki Katayama, Akira Takahashi, Kenji Ohta, Kazuo Van
-
Patent number: 5639580Abstract: An integral image element, comprising:an integral lens sheet with opposed front and back surfaces, the front surface carrying convex surfaces of a plurality of lens elements;an integral image positioned behind the back surface; anda non-specular reflective layer positioned behind the integral image which layer reflects more than 80% of visible light reaching the reflective layer from in front of the layer, before penetrating the reflective layer a distance of 10 microns.A method of making the foregoing type of integral image element is also provided.Type: GrantFiled: February 13, 1996Date of Patent: June 17, 1997Assignee: Eastman Kodak CompanyInventor: Roger Roy Adams Morton
-
Patent number: 5622795Abstract: Unique laser ablation transfer ("LAT") imaging technique presenting options of flexibility and versatility hitherto alien to LAT imaging science ("LATIS"), comprises LAT imaging onto special or conventional intermediate receptor elements, characteristically onto adhesive face surface thereof, and then laminating, notably hot laminating under pressure, the intermediate receptor thus imaged onto any one of a very wide variety of ultimate receptor substrates; thus produced are, e.g., original full-color prints or proofs, photomasks, monochrome or multichrome transparencies, and the like, having smooth or matte protective durable overcoatings.Type: GrantFiled: June 6, 1995Date of Patent: April 22, 1997Assignee: Rexham Graphics Inc.Inventor: Ernest W. Ellis
-
Patent number: 5620548Abstract: The present invention relates to a silver halide photographic transfer element which comprises a support having a front and rear surface, a transfer coating on the front of the support comprising a material capable of holding an image that can be transferred to a receptor surface upon the application of energy to the rear surface of the support, and at least one silver halide light sensitive emulsion layer on said front surface of the support. The invention is also directed to a method for applying a photographic image to a receptor element by the steps of exposing imagewise and then developing the above-described silver halide photographic transfer element, positioning the developed photographic element against a receptor element, and applying energy to the rear surface of the silver halide photographic element to transfer a photographic image to the receptor element.Type: GrantFiled: June 7, 1995Date of Patent: April 15, 1997Assignee: Foto-Wear, Inc.Inventor: Donald S. Hare
-
Patent number: 5620819Abstract: A binary image comprising a plurality of first areas, at which a porous or particulate image-forming substance is adhered to a substrate, and a plurality of second areas, at which the substrate is free from the image-forming substance, is protected by laminating thereto a laminating sheet comprising a barrier layer, a durable layer and a support layer with the barrier layer facing the image, so that the barrier and durable layers adhere to both the first and second areas of the image. The support layer is then displaced away from the image such that the barrier and durable layers remain attached to the image. Both the barrier and durable layers are substantially transparent and the barrier layer comprises a polymeric organic material substantially impervious to the passage of hexane, isopropanol or water.Type: GrantFiled: February 21, 1995Date of Patent: April 15, 1997Assignee: Polaroid CorporationInventors: Robert M. Conforti, Sun-Wook Kim, Being-Kung Yao
-
Patent number: 5604073Abstract: In a bi-layer lift-off process, the adhesion characteristics of a PMGI release layer are substantially improved by the use of ortho-hydroxy substituted 4-phenylazo compounds (azo dyes), a class of nonactinic dyes, as an adhesion promoter additive. These azo dyes, due to their chemical structure, exhibit selective binding to various metals by acting as a chelating ligand to the metal surface. Formulations of a specific azo dye, Sudan Orange G, at concentrations from 0.25 to 1.0 percent (by weight) in PMGI exhibits no loss of adhesion at prebake temperature in the range of 120 to 160 degrees C.Type: GrantFiled: May 30, 1995Date of Patent: February 18, 1997Assignee: International Business Machines CorporationInventors: Mohamad T. Krounbi, Alfred F. Renaldo, Douglas J. Werner
-
Patent number: 5593814Abstract: A device for controlling cell arrangement having a pattern composed of a cell adhesive surface and a cell non-adhesive surface, which has a good selectivity of cell adhesion and which can provide a fine pattern of cells in high resolution by culturing cells in a usual manner.Type: GrantFiled: September 19, 1994Date of Patent: January 14, 1997Assignee: Kanegafuchi kagaku kogyo Kabushiki KaishaInventors: Takehisa Matsuda, Kazuhiko Inoue, Nobutaka Tani
-
Patent number: 5576137Abstract: The invention relates to a non-continuous matte layer that can be used with a recording material having a substrate and a radiation-sensitive layer which contains a 1,2-naphthoquinone-2-diazide and an organic, polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions. This matte layer comprises 100 to 10,000 particles per square centimeter which have a mean diameter of less than 40 .mu.m and a maximum diameter of less than 80 .mu.m and a mean height of 2 to 6 .mu.m and a maximum height of 10 .mu.m, and contains a resin which has up to 0.80 mmol of acid groups and/or salt groups per gram. The matte layer is obtained by spraying on and drying an aqueous, anionically or anionically/nonionically stabilized dispersion of the resin.Type: GrantFiled: September 14, 1994Date of Patent: November 19, 1996Assignee: Agfa-Gevaert AGInventors: Werner Frass, Otfried Gaschler, Klaus Joerg, Guenter Hultzsch, Andreas Elsaesser
-
Patent number: 5547534Abstract: A binary image comprising a plurality of first areas, at which a porous or particulate image-forming substance is adhered to a substrate, and a plurality of second areas, at which the substrate is free from the image-forming substance, is protected by laminating thereto a laminating sheet comprising a barrier layer, a durable layer and a support layer with the barrier layer facing the image, so that the barrier and durable layers adhere to both the first and second areas of the image. The support layer is then displaced away from the image such that the barrier and durable layers remain attached to the image. Both the barrier and durable layers are substantially transparent and the barrier layer comprises a polymeric organic material substantially impervious to the passage of hexane, isopropanol or water.Type: GrantFiled: September 9, 1993Date of Patent: August 20, 1996Assignee: Polaroid CorporationInventors: Robert M. Conforti, Sun-Wook Kim, Being-Kung Yao
-
Patent number: 5534373Abstract: A photosensitive material comprising (A) a flexible transparent film support, (B) a colored photosensitive layer which contains an organic binder (B1) a dye or a colored pigment (B2), a compound (B3), which forms a strong acid on exposure to radiation, and a compound (B4) which has at least one group cleavable by the acid, and (C) an adhesion-promoting layer which contains a thermoplastic polymer which has a softening temperature in the range from 40.degree. to 200.degree. C., wherein the adhesion (a.sub.1) of the unexposed photosensitive layer (B) to the adhesion-promoting layer (C) is less than the adhesion (a.sub.3) of the unexposed photosensitive layer (B) to the film support (A) and than the cohesions of the layers (B) and (C), and the adhesion (a.sub.3 ') of the exposed photosensitive layer (B) to the film support (A) is less than the adhesion (a.sub.Type: GrantFiled: April 19, 1995Date of Patent: July 9, 1996Assignee: Agfa-Gevaert AGInventors: Stephan J. W. Platzer, Andrea Buchmann, Gerhard Buhr
-
Patent number: 5534372Abstract: An IC card in which an IC chip is incorporated between a first and second base boards, comprises an image receiving layer on which an ink image is transferred by a thermal transfer method and a cushion layer provided between the IC chip and the image receiving layer so that the cushion layer smooths irregularity caused by the IC chip and improves a flatness of the image receiving layer.Type: GrantFiled: July 25, 1994Date of Patent: July 9, 1996Assignee: Konica CorporationInventors: Kunihiro Koshizuka, Shigehiro Kitamura, Masataka Takimoto, Tomonori Kawamura
-
Patent number: 5525400Abstract: There are disclosed laminated structures which are bonded with a UV-/VIS-curable composition and which consist of a main foil A) which is substantially impervious to light, at least one interlayer B) which is substantially impervious to light in the absence of the adhesive and which carries on the side with its back to the main foil information in the form of a color pattern, and of a substantially light-permeable covering foil C). The laminated structures can be used as identity cards.Type: GrantFiled: October 23, 1991Date of Patent: June 11, 1996Assignee: Ciba-Geigy CorporationInventors: Aloysius H. Manser, Jacques Francois
-
Patent number: 5518857Abstract: A method for engraving and/or etching comprising the steps of: (a) a process for exposing, to light, a layer of a water-soluble resin composition of a laminated photo-sensitive film which comprises a supporting sheet, a image mask-protection layer peelablly adhered to the supporting sheet and a layer of a water-soluble resin composition having photocrosslinkability to thus cause crosslinking of the exposed area of the resin layer to thereby form a predetermined pattern on the resin layer; (b) a process for dissolving out the non-crosslinked portion of the layer of the water-soluble photo-sensitive resin composition by developing the layer with water to thus from an image-carrying mask which is constituted from the crosslinked area of the photo-sensitive resin composition remaining on the image mask-protection layer; (c) a process for adhering the photo-sensitive laminate film on which the images are formed to the surface of a material to be processed; (d) a process for peeling off the supporting sheet from thType: GrantFiled: January 13, 1995Date of Patent: May 21, 1996Assignee: Aicello Chemical Co., Ltd.Inventors: Tsutomu Suzuki, Ikuo Suzuki
-
Patent number: 5503902Abstract: A light control material for displaying black-and-white and color images by forming light traps in a layer of photopolymer at selected locations. The photopolymer layer constitutes a master from which embossments can be produced. An embossment which displays the image can be produced from the master by a soft embossing procedure. The light traps are formed in the master by reactively ion etching a layer of cured photopolymer at selected locations to create fields of tapered structures. An embossment generated from the master contains fields of tapered structures which correspond to those created in the master. The surface of the embossment which includes the fields of tapered structures is coated with a reflective material such as metal. Light which enters the fields is reflected within the fields of tapered structures until substantially all of the light has been absorbed. Light which does not enter the fields is reflected.Type: GrantFiled: March 2, 1994Date of Patent: April 2, 1996Assignee: Applied Physics Research, L.P.Inventors: Richard A. Steenblik, Mark J. Hurt
-
Patent number: 5500314Abstract: A process for the optical recording and storage of information in the form of bits by irradiating a recording material comprising a substrate coated with at least one layer of a pigment selected from the group of the dithiopyrrolopyrroles, dithioquinacridones, phthalocyanines or mixtures of several of these pigments as recording layer dotwise or linearly with laser light in the near infrared range (NIR range), which pigment (a) has a crystal modification having an absorption band in the NIR range, and (b) is in contact with a solid organic compound that changes the crystal modification of the pigment upon irradiation with laser light, so that (c) after irradiation the absorption in the NIR range is reduced, while the organic compound exhibits no absorption in the NIR range before and after irradiation.Type: GrantFiled: October 6, 1994Date of Patent: March 19, 1996Assignee: Ciba-Geigy CorporationInventors: Jin Mizuguchi, Gerald Giller
-
Patent number: 5496668Abstract: In the formation of microstructures, a preformed sheet of photoresist, such as polymethylmethacrylate (PMMA), which is strain free, may be milled down before or after adherence to a substrate to a desired thickness. The photoresist is patterned by exposure through a mask to radiation, such as X-rays, and developed using a developer to remove the photoresist material which has been rendered susceptible to the developer. Micrometal structures may be formed by electroplating metal into the areas from which the photoresist has been removed. The photoresist itself may form useful microstructures, and can be removed from the substrate by utilizing a release layer between the substrate and the preformed sheet which can be removed by a remover which does not affect the photoresist. Multiple layers of patterned photoresist can be built up to allow complex three dimensional microstructures to be formed.Type: GrantFiled: November 16, 1994Date of Patent: March 5, 1996Assignee: Wisconsin Alumni Research FoundationInventors: Henry Guckel, Todd R. Christenson, Kenneth Skrobis
-
Patent number: 5486442Abstract: An alternating copolymer comprising a repeating unit of the formula:-Z-(X-Y).sub.n - (I)wherein n is at least 2, X is O, S, Se or Te, and Y and Z are independently an aromatic or substituted aromatic group, and at least one other repeating unit, which is useful as a photosensitive material used in a spatial light modulator.Type: GrantFiled: July 13, 1993Date of Patent: January 23, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Akio Takimoto, Hirofumi Wakemoto, Eiichiro Tanaka, Masanori Watanabe, Junko Asayama, Hisahito Ogawa, Shigehiro Sato, Fumiko Yokotani
-
Patent number: 5480748Abstract: A conductive layer in a semiconductor device is protected against chemical attack by a photoresist developer by forming a protective film overlying the conductive layer. The protective film is formed using a chemical reaction that occurs through defects in a passivation layer that was previously formed overlying the conductive layer. The chemical reaction substantially occurs at the surface of the conductive layer and chemically converts portions thereof in forming the protective film. Preferably, the conductive layer is aluminum or an alloy thereof containing copper and/or silicon, and the protective film is aluminum oxide formed on the aluminum layer to protect it from corrosion by tetramethyl ammonium hydroxide (TMAH). The passivation layer is TiN, and the chemical reaction used is oxidation of the aluminum layer through defects in the overlying TiN layer by placing in an ozone asher.Type: GrantFiled: April 26, 1994Date of Patent: January 2, 1996Assignee: International Business Machines CorporationInventors: Paul E. Bakeman, Jr., Hyun K. Lee, Stephen E. Luce
-
Patent number: 5474844Abstract: A polyester film for an image-forming transfer material, wherein a difference .DELTA..alpha..sub.t between the maximum coefficient of thermal expansion and the minimum coefficient of thermal expansion in the film plane is not larger than 1.0.times.10.sup.-5 /.degree.C., and the maximum coefficient of thermal expansion .alpha..sub.tmax is not larger than 2.5.times.10.sup.-5 /.degree.C., which can form a high quality color image having less deviation and a high image density.Type: GrantFiled: July 26, 1994Date of Patent: December 12, 1995Assignees: Diafoil Hoechst Company, Limited, Mitsubishi Chemical CorporationInventors: Yoshinori Sato, Tetsuya Masuda
-
Patent number: 5472815Abstract: A coated material comprising a substrate which is coated with a layer of a pyrrolopyrrole of formula I ##STR1## wherein R.sub.1 and R.sub.2 may be 4-pyridyl and X.sub.1 and X.sub.2 are O, said compound of formula I being at least partially in the form of a salt of a strong acid, is suitable for use as an optical recording material and, owing to its electrical conductivity and photoconductivity, as antistatically treated material, as sensor, photoreceptor and solar battery.Type: GrantFiled: January 25, 1994Date of Patent: December 5, 1995Assignee: Ciba-Geigy CorporationInventors: Jin Mizuguchi, Gerald Giller, Alain C. Rochat
-
Patent number: 5462823Abstract: Disclosed is a magnetic recording element comprising a support having coated on at least one major surface thereof a layer of a magnetic recording medium and a photosensitive layer which may be separate from or integral with the magnetic recording layer and which contains an infrared absorbing dye or its precursors. Information can be imparted to the photosensitive layer by imagewise exposure to actinic radiation which will either promote or inhibit generation or destruction of the infrared absorbing dye.Type: GrantFiled: November 15, 1993Date of Patent: October 31, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Christopher M. Evans, Mark R. Buckingham, Colin F. Norman
-
Patent number: 5419988Abstract: A phase shift photomask and a photomask blank used to produce the same. A dry etching stopper layer, which is disposed between a substrate and a light-shielding layer or between the substrate and a phase shifter layer, is made of either a film mainly composed of tin oxide nitride, which has high etching selectivity and high permeability, or an alumina film formed by sputtering, followed by heat treatment carried out in an oxidizing atmosphere, thereby enabling the required overetching to be satisfactorily performed during etching of the phase shifter layer, and thus making it possible to effect precise phase control. In addition, it is possible to eliminate the occurrence of an in-plane transmittance distribution.Type: GrantFiled: August 5, 1993Date of Patent: May 30, 1995Assignee: Dai Nippon Printing Co., Ltd.Inventors: Hiroshi Mohri, Keiji Hashimoto, Masahiro Takahashi, Wataru Goto, Yukio Iimura
-
Patent number: 5413863Abstract: Holographic films are disclosed that contain a binder having the following formula:(M).sub.w (VAc).sub.x (VOH).sub.y (VOS).sub.zwherein M is a fluoromonomer; VAc is vinyl acetate; VOH is vinyl alcohol; and VOS is vinyl trimethylsilyl ether; and wherein w, x, y, and z are percentages by weight; w is 5 to 30, x is 40 to 80, y is 0 to 20, and z is 2 to 30; said copolymers containing 3 to 23% by weight fluorine. These imaged films are particularly suited for lamination to glass in head-up display applications.Type: GrantFiled: November 4, 1993Date of Patent: May 9, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Andrew M. Weber, Aleksander Beresniewicz
-
Patent number: 5407781Abstract: A photosensitive element comprising (a) a support, (b) a thermally hardened layer containing the reaction product of (i) either an organic polymer having reactive segments and nonreactive segments or a blend of organic polymers wherein at least one polymer has reactive segments and at least one polymer has nonreactive segments (ii) a crosslinking agent and (iii) a catalyst and (c) a photohardenable layer is described.Type: GrantFiled: December 6, 1993Date of Patent: April 18, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Bernard Feinberg, Richard P. Pankratz
-
Patent number: 5403685Abstract: Sub-micron features are defined photo-lithographically by combining phase-shifting techniques with conventional photo lithographic techniques. In a first step, phase-shifting edges are defined in a photoresist layer. Dark-bands develop at the phase-shifting edges due to wavefront interference of an illuminating radiation in a subsequent exposure step. Development leaves behind sub-micron sections of photoresist which were covered by the dark-band regions. The dark-band sections are hardened and overcoated with a new layer of photoresist. A second pattern is projected onto the second layer of photoresist using conventional techniques. The second pattern is developed so as to create features having dimensions reduced by parts of the dark-band sections previously developed.Type: GrantFiled: September 29, 1992Date of Patent: April 4, 1995Assignees: Sharp Kabushiki Kaisha, Sharp Microelectronics Technology, Inc.Inventors: David A. Vidusek, Hiroki Tabuchi
-
Patent number: 5395719Abstract: A dye transfer receptor sheet suitable for thermal dye transfer imaging is described which can provide a metal background to the transfered image. The receptor sheet comprises an organic polymeric substrate having a vapor deposited metal layer, a primer layer comprising a linear saturated thermoplastic polyester and a thermoset alkyd polyester, and a receiving layer.Type: GrantFiled: March 24, 1994Date of Patent: March 7, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Susan K. Jongewaard, Robert A. Braun
-
Patent number: 5344730Abstract: A method of recording information relating to an image photographed on a photographic film in which the photographic film comprises a magnetic track associated with each image frame for magnetically recording the information. Each magnetic track has two or more fields. The information is divided into sections which are each recorded onto any of the fields together with a start signal, an end signal, and an error detection and/or correction signal for each the information section. Consequently, even if the information to be recorded for each image frame is interrupted due to an error in the conveying speed of the film, a portion of the information can be read and utilized.Type: GrantFiled: June 29, 1993Date of Patent: September 6, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Tatsuji Kitamoto
-
Patent number: 5314772Abstract: A high resolution, multi-layer resist for use in microlithography and a method is disclosed. The resist consists of a planarized layer deposited onto a substrate and an active layer, consisting of arsenic sulfide and silver is deposited onto the planarized layer. Irradiation with light, or other source of irradiation causes the silver to ionically diffuse into the arsenic sulfide, thereby creating a non-phase separate ternary chalcogenide glass. Removal of either the reacted or unreacted ternary compound will provide a positive or negative mask which may be used in subsequent processing or left as an intermetal dielectric as part of the underlying circuitry.Type: GrantFiled: June 8, 1992Date of Patent: May 24, 1994Assignee: Arizona Board of RegentsInventors: Michael N. Kozicki, Shao-Wen Hsia
-
Patent number: 5312671Abstract: A matte drafting sheet composite at least one side of which comprises a single polymeric matrix layer containing particulates to provide a matte or drafting surface and a quaternary ammonium salt of high charge density at a concentration sufficient to provide a resistivity of said matrix layer of at most about 1.times.10.sup.13 ohms/square.Type: GrantFiled: May 21, 1991Date of Patent: May 17, 1994Assignee: Arkwright IncorporatedInventors: David Atherton, Morgan E. Gager, Sankar K. Paul
-
Patent number: 5288570Abstract: A composite film article which is a flexible, heat resistant polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of less than 1.0, a transmission density of less than about 2.0 and a thickness of less than about 5.0 microns. The article may be used as a base for images such that the images have a reduced optical dot gain.Type: GrantFiled: August 12, 1992Date of Patent: February 22, 1994Assignee: Hoechst Celanese CorporationInventors: Robert J. von Trebra, Dennis J. Bellville
-
Patent number: 5272025Abstract: A composite comprising a carrier sheet of photograph size, and having front and back sides, and a camera-produced photographic image on a photographic print at the front side of the carrier sheet, and a graphics-produced image on at least one side of the sheet; a first digitized format on the back side of the carrier sheet, the format corresponding to the photographic image whereby the image is stored in the format, and a second digitized format on the back side of the carrier sheet, the second format corresponding to the graphics-produced image, the formats characterized as machine readable to produce a CRT display on the photographic image, and of the graphics-produced image in association with the photographic image display.Type: GrantFiled: May 3, 1991Date of Patent: December 21, 1993Inventor: Douglas E. Wheeler
-
Patent number: 5268259Abstract: A process for preparing a toner donor roll having an integral electrode pattern involving: (a) providing a cylindrically shaped insulating member; (b) coating the insulating member with a photoresist; (c) patterning the photoresist by exposure to light, resulting in a first photoresist portion corresponding to the electrode pattern and a second photoresist portion corresponding to the remainder of the photoresist; (d) removing the first photoresist portion, thereby exposing the portion of the insulating member to be overlaid with the electrode pattern; and (e) depositing conductive metal on the portion of the insulating member formerly overlaid with the first photoresist portion, resulting in the electrode pattern.Type: GrantFiled: October 16, 1992Date of Patent: December 7, 1993Assignee: Xerox CorporationInventor: Donald S. Sypula
-
Patent number: 5266427Abstract: A display board has a substrate, a transparent photopolymerization resin layer formed on the substrate, and a picture layer formed in a surface of the transparent photopolymerization resin layer. The picture layer is composed of at least one dots-shaped colored photopolymerization resin. This display board is produced by exposing a colored photopolymerization resin film supported by a support member through a negative having a predetermined picture pattern to form a dots-shaped colored photopolymerization resin layer on the support member, transferring the dots-shaped colored photopolymerization resin layer to a surface of a transparent photopolymerization resin layer formed on a substrate to form a picture layer in the surface of the transparent photopolymerization resin layer, and setting the transparent photopolymerization resin layer in which the picture layer is formed to fix the picture layer.Type: GrantFiled: April 1, 1992Date of Patent: November 30, 1993Assignee: Nippondenso Co., Ltd.Inventors: Teruhiko Iwase, Takeshi Imai, Toshio Koura
-
Patent number: 5258247Abstract: A photoimaged article having a protected image composed of a colored image on a support; and a thin, transparent, flexible, nonself supporting, protective layer on the surface of the image. The layer is substantially nontacky at room temperature, and has at least a major amount based on the weight of the layer of one or more thermoplastic resins of a vinyl acetal, vinyl chloride, or acrylic polymer or copolymer having a Tg of from about 35.degree. C. to about 110.degree. C. The layer is capable of being adhesively transferred directly to the image when the layer is first applied on the release surface of a temporary support, and the image and protective layer are laminated together under pressure at temperatures of between about 60.degree. C. to about 180.degree. C. with subsequent removal of the temporary support. The side of said layer opposite to the image is free from additional layers. The adhesive layer is one which does not cohesively block at temperatures of about 50.degree. C. or less.Type: GrantFiled: November 6, 1989Date of Patent: November 2, 1993Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
-
Patent number: 5215837Abstract: A direct pigment photographic printing process and composition based on a two-step coating process comprising a first coating applied to a sealed substrate containing between 2 to 8 and 8 to 2 weight parts of gum arabic to gelatin, and then applying a second top coating containing preferred ratios of gum arabic to gelatin. The process is based on heating the first and second coating compositions sufficiently above about 105.degree. F. prior to application to the substrate to assure homogeneous mixtures of each coating at the time of application.Type: GrantFiled: March 30, 1992Date of Patent: June 1, 1993Inventor: Arthur T. Chakalis
-
Patent number: 5216543Abstract: The present invention relates to an apparatus and method for patterning areas of a radiation absorbent film material. In the preferred embodiment, the film material is at least partially electrically conductive. The radiation is focused onto the film by a lenticular lens having a plurality of optically active elements to provide a radiation pattern on the film and remove or displace portions of the film to form a corresponding pattern, preferably a conductive pattern. The film may have one or more layers or regions, but at least one region must be radiation absorbent in order to allow the formation of patterns in the film in accordance with the present invention. The areas of the film affected by the phenomenon of radiation absorption are non-conductive voids which may separate the film into a plurality of conductive grid lines whereby the film is useful with a conductive lens film to increase the apparent efficiency of a photovoltaic cell.Type: GrantFiled: March 4, 1987Date of Patent: June 1, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Clyde D. Calhoun
-
Patent number: 5213917Abstract: This invention describes methods for altering a substrate in a fine line image pattern using a microlithographic process including formation of a metal mask over a photoresist coating to protect the photoresist coating during dry development of the same. The invention also describes a method for formation of the metal mask. Briefly stated, the process of the invention comprises the steps of coating a substrate with a photoresist coating, exposing the photoresist coating so formed to a desired pattern of actinic radiation, catalyzing the entire surface of the photoresist coating with an electroless plating catalyst, developing the photoresist layer to a depth at least sufficient to remove the undesired catalyst layer in an image pattern, forming a metal pattern on the desired (remaining) catalyst layer and dry developing the remaining photoresist coating unprotected by the metal mask.Type: GrantFiled: January 31, 1991Date of Patent: May 25, 1993Assignee: Shipley Company Inc.Inventors: Michael Gulla, Prasit Sricharoenchaikit
-
Patent number: 5213648Abstract: In a laminated product wherein at least one supported information-containing hydrophilic colloid layer is adhesively bonded on at least one of its surfaces to a protective hydrophobic resin sheet, improved adherence is achieved by using as the bonding adhesive a cationic crosslinked polymer obtained by:a) condensing a polyalkylenepolyamine containing at least two primary amino groups and at least one secondary or tertiary amino group with a dicarboxylic acid to form a polyamidoamine,b) subjecting the resultant polyamidoamine to a graft reaction in the presence of an acid catalyst with an alkene-1,2-imine, andc) crosslinking the resultant graft polymer with an epihalohydrin, an Alpha-Omega dihalohydrin ether or the ether compound obtained by reaction of epichlorohydrin with a water-soluble polyalkyleneoxide to form the water-soluble cationic polymer. With this adhesive bond, a tamper-proof seal can be obtained between the information-containing colloid layer and the hydrophobic resin protective sheet.Type: GrantFiled: March 15, 1991Date of Patent: May 25, 1993Assignee: Agfa-GEVAERT N.V.Inventors: Leon L. Vermeulen, Robert S. Pauwels
-
Patent number: 5194347Abstract: A sheet, ribbon or web material comprising a support made of a synthetic resin or a paper support coated with a layer of said resin, wherein a resin surface of said support is coated with a subbing layer and the subbing layer itself is coated with a hydrophilic colloid image-receiving layer containing development nuclei for silver image formation by DTR-processing, characterized in that the synthetic resin of said support is a polycarbonate or polypropylene resin, and said subbing layer contains in percent by weight on its total weight following ingredients: 1.3% to 80% of proteinaceous colloid, e.g. gelatin or caseine,0% to 85% of colloidal silica,1.Type: GrantFiled: November 26, 1991Date of Patent: March 16, 1993Assignee: Agfa-Gevaert N.V.Inventors: Leon L. Vermeulen, Robert S. Pauwels
-
Patent number: 5192630Abstract: The invention provides a method for protecting an image which comprises providing a multilayered colored image on a permanent receiver which may be any of a wide range of materials. A photosensitive element on a substrate is laminated to a temporary element and exposed with substrate removal before development. After development, the steps are repeated with another color. A protective element is laminated to the colored image. After removal of the support of the temporary element, the colored image with protective element is laminated to a permanent receiver.Type: GrantFiled: November 25, 1991Date of Patent: March 9, 1993Assignee: Hoechst Celanese CorporationInventor: Stephan J. W. Platzer
-
Patent number: 5178979Abstract: An image transfer type recording method for forming a visible image on a developer medium comprising a base sheet, a thermoplastic resin layer, and a developer material layer which is color-reactable with a chromogenic material laminated in this order, and transferring the visible image on the developer medium to any type of image supporting medium, comprising the steps of forming the visible image on the developer material layer through a color-reaction between the developer material and the chromogenic material, providing an adhesive layer on the developer material layer, superposing the developer material layer and the image supporting medium under pressure and heat to fixedly transfer the developer material layer having the visible image thereon to the image supporting medium, and peeling off only the substrate of the developer medium.Type: GrantFiled: October 30, 1990Date of Patent: January 12, 1993Assignee: Brother Kogyo Kabushiki KaishaInventors: Shunichi Higashiyama, Keiko Suzuki
-
Patent number: 5178975Abstract: A technique for making a high resolution X-ray mask with high aspect ratio absorber patterns sufficient for use in X-ray lithography wherein a thin resist layer is used to provide a low contrast mask, and then an X-ray exposure is used to increase the aspect ratio of the absorber to increase the contrast of the mask. The mask is first patterned with an e-beam resist exposure and development step, and the plating of the base material is activated by a reactive ion etch followed by electroplating. The resist is removed and the mask is coated with a negative acting X-ray resist. The back of the mask is exposed to X-rays wherein the existing absorber acts as an X-ray mask to expose the desired areas of the resist. The resist is removed after development, reactive ion etching and electroplating resulting in a mask with high contrast.Type: GrantFiled: January 25, 1991Date of Patent: January 12, 1993Assignee: International Business Machines CorporationInventors: Kaolin Ng Chiong, David E. Seeger
-
Patent number: 5176971Abstract: A technique related to color filters to be arranged on the light-receiving surface of a color liquid crystal display device, color video camera, and the like. The color filter consists of a substrate (10) and a colored filter layer (12) formed thereon. The colored filter layer (12) comprises, for example, three groups of filter picture elements (14R), 14G, 14B) having spectral characteristics respectively corresponding to red, green and blue. Each group of filter picture elements are made of polyimide resin and dye contained therein. Further, each group of the filter picture elements (R, G, B) are arranged in direct contact with one surface of the substrate (10) without using any intermediate protecting film. The first group of filter picture elements patterned on one surface of the substrate (10) are subjected to heat treatment at a high temperature of about 250.degree. C., for example, to increase their resistance against the solvent.Type: GrantFiled: August 5, 1991Date of Patent: January 5, 1993Assignee: Kyodo Printing Co., Ltd.Inventors: Masayoshi Shimamura, Tadahiro Furukawa, Akiyoshi Murakami, Toshio Haga
-
Patent number: 5176972Abstract: An imaging medium comprises means for providing a light-reflecting layer, an image-receiving layer for receiving image-forming components, a transparent layer superposed over the image-receiving layer such that an image in the image-receiving layer can be viewed through the transparent layer against the light-reflecting layer, and an image enhancement layer disposed between the image-receiving layer and the transparent layer, the image enhancement layer having a refractive index less than that of the transparent layer and the image-receiving layer and not greater than about 1.43. The image enhancement layer decreases internal reflections within the medium and thereby improves the quality of the image seen. The imaging medium can be used as the imaging element of a diffusion transfer process film unit.Type: GrantFiled: September 11, 1991Date of Patent: January 5, 1993Assignee: Polaroid CorporationInventors: Iris B. K. Bloom, Richard A. Minns, William T. Plummer
-
Patent number: 5176973Abstract: An at least two-color low optical dot gain surlay pre-press color proof comprising a base having laminated thereto in the following order, a first adhesive layer, a first single-color image, and then at least one additional pair of thin adhesive layers and comprising a synthetic polymeric binder composition with a Tg of less than 105.degree. and a thickness of 8-30 microns which thickness is at least twice that of any one of said additional thin adhesive layers.Type: GrantFiled: September 28, 1989Date of Patent: January 5, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Charles J. Gifford, Jack E. Cook, Bruce W. Weeks, Julien M. Wajs
-
Patent number: 5162179Abstract: This invention involves a structure containing a layered imaged configuration with an overcoating layer. The overcoating layer, in addition to encapsulating the toned image, substantially strengthens the dielectric layer after it is removed from the system. Also, a process for producing a product having an image depth perception and the product itself are disclosed. The layered structure may have one or two dielectric layers having a combined thickness of from about 0.2 to about 10.0 mils.Type: GrantFiled: April 17, 1990Date of Patent: November 10, 1992Assignee: Armstrong World Industries, Inc.Inventors: Walter J. Lewicki, Jr., John H. Bowers
-
Patent number: 5145757Abstract: A silicate glass article comprising an amount of SiO.sub.2 effective as a network former and,at least one surface of said article having a substantially continuous silver and hydration content over its area, effective to render said surface darkenable upon exposure to electron beam radiation but substantially not thermoplastic,said article having been substantially darkened by electron beam irradiation over at least a portion of at least one surface thereof,and said article having geometric characteristics suitable for functioning as a photomask reticle, optical disk or similar archival storage medium.Type: GrantFiled: June 23, 1989Date of Patent: September 8, 1992Assignee: Schott Glass Technologies, Inc.Inventors: Stephen W. Smoot, Joseph S. Hayden
-
Patent number: 5114813Abstract: Silicate glasses are provided which when exposed to a silver ion exchange surface treatment are writable with electron beams. These glasses contain OD agents and do not require elements having 1-4 d-electrons in the atomic state.Type: GrantFiled: February 8, 1990Date of Patent: May 19, 1992Assignee: Schott Glass Technologies, Inc.Inventors: Stephen W. Smoot, Joseph S. Hayden, Marc Clement, Danuta Grabowski, Eva Holzel, Peter Nass, Martin Heming
-
Patent number: 5110697Abstract: A photolithographic composition having improved processability and which eliminates the need for inter layering multiple special purpose coatings in the production of micro-electronic devices is surprisingly made possible by selective dissolution of poly(vinylpyridine) and an effective light attenuating material in critical solvents.Type: GrantFiled: December 13, 1990Date of Patent: May 5, 1992Assignee: Brewer Science Inc.Inventors: James E. Lamb, III, Terry Brewer, J. Michael Mori
-
Patent number: 5108857Abstract: A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.Type: GrantFiled: April 5, 1990Date of Patent: April 28, 1992Assignees: Sumitomo Chemical Company, Limited, Nippon Sheet Glass Co., Ltd.Inventors: Shinichiro Kitayama, Teruho Adachi, Masahiro Ueda, Yuichi Aoki, Satoshi Shiiki, Akio Takigawa, Motoaki Yoshida, Naoya Imamura, Koichi Maeda, Hisayuki Kayanoki