Identified Radiation Sensitive Composition With Color Producing Substance Patents (Class 430/541)
  • Publication number: 20140342293
    Abstract: Disclosed is an improved method for reducing the static sensitivity of a heat sensitive coating composition while not deteriorating the dynamic sensitivity, wherein N-(p-toluenesulphonyl)-N?-(3-p-toluenesulphonyl-oxy-phenyl)urea having an X-ray powder pattern having Bragg angles (2?/CuK?) of 10.3, 11.1, 13.0, 13.3, 15.6, 17.1, 18.1, 18.4, 19.6, 20.0, 20.8, 21.3, 23.1, 25.0, 25.5, 26.4, 26.8, 27.5, 29.1, 32.8 is used as a colour developer.
    Type: Application
    Filed: December 17, 2012
    Publication date: November 20, 2014
    Applicant: BASF SE
    Inventors: Robert M. O'Neil, Lukasz Hook
  • Publication number: 20140127429
    Abstract: A method of forming a coloured substrate, comprising applying to or incorporating within the substrate a diacetylene compound, and exposing the substrate to (i) a first, activating stimulus that converts the diacetylene compound from an unreactive to a reactive form, and (ii) a second stimulus that causes the reactive form of the diacetylene compound to polymerize and form the coloured substrate, wherein the diacetylene compound reverts to its unreactive form on removal of the activating stimulus and is of formula I: Y—C?C—C?C—(CH2)n-T-Q-Z (I) wherein: n=an odd integer; T=CO, CS or a bond; Q=NH, S, O, OCONH, NHCONH, NH—CHE-CONH, NHCOO or NHCSNH wherein E is H or a C1-20 alkyl group; Z=H or a hydrocarbon group containing 1 to 20 carbon atoms; Y=H or any group comprising at least one carbon atom.
    Type: Application
    Filed: February 24, 2012
    Publication date: May 8, 2014
    Applicant: DATALASE LTD.
    Inventors: Anthony N. Jarvis, Christopher A. Wyres, Benjamin Mulchin, Adam O'Rourke
  • Patent number: 8240038
    Abstract: A method including positioning an electronic device proximate a second device, the electronic device including at least one of a semiconductor device, an integrated circuit chip, and an electronic substrate, and the second device activatable to form a conductive pattern on the electronic device. The method further includes activating the second device to form the conductive pattern and forming the conductive pattern on at least two surfaces of the electronic device. The conductive pattern includes one or more than one conductive trace. Each conductive trace includes a conductive material and is continuous between at least two surfaces of the electronic device. Each conductive trace is formed by controlling relative movement of the electronic device and the second device during activation of the second device.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: August 14, 2012
    Assignee: Teledyne Technologies Incorporated
    Inventors: Cuong V. Pham, David E. Chubin, Robert A. Clarke, Aaron D. Kuan
  • Publication number: 20120021363
    Abstract: A method of forming an image on a substrate by irradiation thereof, wherein the substrate comprises therein or thereon a co-crystal of a polymerisable unsaturated monomer and a spacing component, wherein the co-crystal is capable of undergoing a radiation-activated colour change reaction. A co-crystal of a diacetylene and a spacing component, whereby the reactivity of the diacetylene is reduced is also provided, together with a surface coating composition comprising this co-crystal.
    Type: Application
    Filed: February 4, 2010
    Publication date: January 26, 2012
    Inventor: Anthony Jarvis
  • Patent number: 7907346
    Abstract: Photochromic materials and photochromic compositions and articles including the photochromic materials are disclosed. The photochromic materials may be the reaction product of a hyperbranched polyester polyol having, on average, at least two reactive hydroxyl groups, and at least one photochromic indeno-fused naphthopyran.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: March 15, 2011
    Assignee: Transitions Optical, Inc.
    Inventors: Shanti Swarup, Carol L. Knox, Feng Wang
  • Patent number: 7640658
    Abstract: A method of forming an anti-tamper mesh on an electronic device. The method includes forming at least one terminal on the electronic device and forming a conductive mesh on at least one surface of the electronic device, wherein the conductive mesh is in electrical contact with the terminal, and wherein the terminal facilitates electrical conduction between the conductive mesh and an electrical detection circuit.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: January 5, 2010
    Assignee: Teledyne Technologies Incorporated
    Inventors: Cuong V. Pham, David E. Chubin, Robert A. Clarke, Aaron D. Kuan
  • Patent number: 7550240
    Abstract: This invention relates to electrophotographic elements containing a layer formed from coating compositions containing a mixture of polymeric binders, including a polyvinyl butyral and a polyester ionomer and a crystalline mixture of unsubstituted titanyl phthalocyanine pigment, titanyl phthalocyanine pigments or mixtures thereof dispersed in the mixture. More particularly the invention relates to electrophotographic elements containing photoconductive layers which are especially useful for forming a photoconductive layer that is very uniform and highly absorptive at relatively thin coverage with good inter layer adhesion. The electrophotographic elements produced using this coating composition are particularly suited for high quality applications such as providing copy images with very low grain.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: June 23, 2009
    Assignee: Eastman Kodak Company
    Inventors: Michel F. Molaire, Jane R. Cowdery-Corvan, Lloyd Lobo, Theodore Zubil, Edward T. Miskinis, Dennis R. Fronheiser
  • Patent number: 7455959
    Abstract: The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless imidazole compound of formula (I) that undergoes less than 10% chemical or redox reaction with oxidized developer and which enables the photographic speed of the element to be increased by at least 0.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 25, 2008
    Assignee: Eastman Kodak Company
    Inventors: Bernard A. Clark, Philip A. Allway, Tania Zuberi, Stephen P. Singer, Charles E. Heckler, Louis E. Friedrich
  • Patent number: 7442486
    Abstract: Radiation-sensitive element comprising: (a) one or more types of monomers each comprising at least one ethylenically unsaturated group accessible to a free-radical polymerization, (b) at least one sensitizer, (c) at least one coinitiator capable of forming free radicals together with the sensitizer (b) and selected from the following classes of compounds: metallocenes; 1,3,5-triazine derivatives with one to three CX3 groups, wherein X represents chlorine or bromine; peroxides; hexaarylbiimidazoles; oxime ethers; oxime esters; N-aryl glycines and derivatives thereof; thiol compounds; N-aryl, S-aryl and O-aryl polycarboxylic acids with at least 2 carboxyl groups of which at least one is bonded to the N, S or O atom of the aryl unit; alkyltriarylborates; benzoin ethers; benzoin esters; trihalogenomethylarylsulfones; amines; N,N-dialkylaminobenzoic acid esters; aromatic sulfonyl halides; trihalogenomethylsulfones; imides; diazosulfonates; 9,10-dihydroanthracene derivatives; a-hydroxy and a-amino acetophenones; an
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: October 28, 2008
    Assignee: Eastman Kodak Company
    Inventors: Harald Baumann, Udo Dwars, Detlef Pietsch, Michael Flugel
  • Publication number: 20080225400
    Abstract: Photochromic materials and photochromic compositions and articles including the photochromic materials are disclosed. The photochromic materials may be the reaction product of a hyperbranched polyester polyol having, on average, at least two reactive hydroxyl groups, and at least one photochromic indeno-fused naphthopyran.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 18, 2008
    Applicant: TRANSITIONS OPTICAL, INC.
    Inventors: Shanti Swarup, Carol L. Knox, Feng Wang
  • Publication number: 20080206691
    Abstract: The present invention provides a phosphor screen in a Xe gas discharge device such as a plasma display device or a mercury-free flat fluorescent lamp, which phosphor having a clean surface that emit a brighter photoluminescence under the vacuum ultraviolet lights from Xe gas discharge, and which gives a wide rendering of color images on screens of PDP and LCD, and furthermore the invention provides the remarkable reduction of the production cost of PDP and Hg-free FFL.
    Type: Application
    Filed: February 22, 2007
    Publication date: August 28, 2008
    Inventors: Lyuji Ozawa, Chun-Hui Tsai
  • Publication number: 20080193885
    Abstract: A visual indicating paste for detecting the level of hydrocarbons in a storage container is disclosed. The visual indicating paste is a physical mixture of a non-polar dye, a high molecular weight carrier, a whitening agent and a filler material.
    Type: Application
    Filed: February 8, 2007
    Publication date: August 14, 2008
    Inventor: Nabil J. Mohtadi
  • Patent number: 7270932
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be used in methods of marking.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: September 18, 2007
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, James T. Fahey, Corey O'Connor, James G. Shelnut, John J. Piskorski
  • Patent number: 7241563
    Abstract: A silver halide color photographic light-sensitive material having a silver halide emulsion layer, and (1) a substantially light-insensitive dye-forming-coupler-containing layer, and (2) at least one layer selected from a non-color-forming intermediate layer containing a color-mixing inhibitor and a non-color-forming intermediate layer substantially free of color-mixing inhibitor, wherein i) when the light-insensitive dye-forming-coupler-containing layer is included, the layer is positioned adjacent to the silver halide emulsion layer, and ii) when the non-color-forming intermediate layer containing a color-mixing inhibitor and the non-color-forming intermediate layer substantially free of color-mixing inhibitor are included, these layers are positioned adjacent to each other.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: July 10, 2007
    Assignee: FUJIFILM Corporation
    Inventors: Mamoru Sakurazawa, Jun Arakawa
  • Patent number: 7223519
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be applied to a work piece to mark it and removed from the work piece by peeling.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: May 29, 2007
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Corey O'Connor
  • Patent number: 7144676
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be applied to a work piece to mark it and removed from the work piece by peeling.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: December 5, 2006
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Corey O'Connor
  • Patent number: 7022441
    Abstract: Silver-free, aqueous-based direct thermographic materials are designed to have image tone with near neutral density. Without the use of organic silver salts containing reducible silver ions, the image is formed using a color developing agent precursor that releases a color developing agent when heated to a temperature of at least 80° C., a combination of cyan, yellow and magenta dye-forming color couplers that provide cyan, yellow, and magenta dyes, and a substituted or unsubstituted benzoquinone as an oxidizing agent. No silver metal or silver ions are purposely added to these materials. This combination of components provides a means for controlling image tone without reliance upon conventional toning agents.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: April 4, 2006
    Assignee: Eastman Kodak Company
    Inventors: Joe E. Maskasky, Victor P. Scaccia
  • Patent number: 6962763
    Abstract: Silver-free, aqueous-based direct thermographic materials are designed to have image tone with near neutral density. Without the use of organic silver salts containing reducible silver ions, the image is formed using a color developing agent precursor that releases a color developing agent when heated to a temperature of at least 80° C., a combination of cyan, yellow and magenta dye-forming color couplers that provide cyan, yellow, and magenta dyes, and a hindered-amine N-oxyl as an oxidizing agent. No silver metal or silver ions are purposely added to these materials. This combination of components provides a means for controlling image tone without reliance upon conventional toning agents.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: November 8, 2005
    Assignee: Eastman Kodak Company
    Inventors: Joe E. Maskasky, Victor P. Scaccia
  • Publication number: 20040253556
    Abstract: A silver halide light-sensitive color photographic material comprising a substrate having thereon layers which include a light-sensitive layer, wherein the light-sensitive layer contains a compound which is capable of producing a chemically inert and a colorless compound by chemically bonding with an aromatic amine color development agent which remains in the light-sensitive layer after the color photographic material has been subjected to color development using a development solution which contains the development agent, a total amount of a hydrophilic binder contained in the layers which are provided on the silver halide emulsion layer side of the substrate is less than or equal to 6.3 g/m2, and a total thickness of all the layers is less than or equal to 7.0 &mgr;m.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 16, 2004
    Applicant: Konica Minolta Photo Imaging, Inc
    Inventor: Yoshiko Iwai
  • Patent number: 6395367
    Abstract: The invention relates to ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention includes an anionic portion combined with at least one cationic portion Mm+ in sufficient numbers to ensure overall electronic neutrality; the compound is further comprised of M as a hydroxonium, a nitrosonium NO+, an ammonium —NH4+, a metallic cation with the valence m, an organic cation with the valence m, or an organometallic cation with the valence m. The anionic load is carried by a pentacyclical nucleus of tetrazapentalene derivative bearing electroattractive substituents. The compounds can be used notably for ionic conducting materials, electronic conducting materials, colorant, and the catalysis of various chemical reactions.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: May 28, 2002
    Assignees: Hydro-Quebec, Centre National de la Recherche Scientifique
    Inventors: Christophe Michot, Michel Armand, Michel Gauthier, Yves Choquette
  • Patent number: 6335450
    Abstract: This invention provides cyclic-bridged dyes, particularly cyclic-bridged cyanine dyes, of the general formula: In this formula, each dotted line represents carbon atoms necessary to form a fused substituted or unsubstituted aromatic ring; n=1-18; m=1-18, selected independently from n. X and Y are selected independently from the group consisting of S, O, N, CH2 and C(CH3)2; at least one of said R1 and R2 comprises a sulfonic acid or sulfonate group attached to the aromatic ring; and R3 and R4 are independently selected from the group consisting of carboxyl, activated carboxyl and methyl, wherein at least one of said R3 and R4 groups is carboxylate or activated carboxylate. Methods of making and using the cyclic-bridged dyes are also provided.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: January 1, 2002
    Assignee: Beckman Coulter, Inc.
    Inventors: Firdous Farooqui, Maged A. Michael, M. Parameswara Reddy
  • Patent number: 6331632
    Abstract: This invention provides dye phosphoramidites, particularly phosphoramidites of cyanine and related dyes, of the general formula: In this formula, each dotted line represents carbon atoms necessary to form a fused substituted or unsubstituted aromatic ring; m is an integer from 1 to 18; Y and Z are independently selected from the group consisting of S, O, N, CH2 and C(CH3)2; R1 is an alkyl; (PAM) is a phosphoramidite group; X⊖ is a negative ion; and Q is or wherein n is 1, 2 or 3. Methods of making and using the dye phosphoramidites are also provided.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: December 18, 2001
    Assignee: Beckman Coulter, Inc.
    Inventors: M. Parameswara Reedy, Firdous Farooqui, Maged A. Michael
  • Patent number: 6284446
    Abstract: A multilayer silver halide color photographic material, wherein when the multilayer silver halide color photographic material is development processed with a color developing solution containing a p-phenylenediamine derivative as a color developing agent, the relationship between the development proceeding velocity a of the lowermost layer of the constituting emulsion layers of the photographic material and the development proceeding velocity b of the uppermost layer satisfies the following equation (R-1): 0.65≦a/b≦2.0  (R-1) provided that the development proceeding velocity is expressed by the reciprocal of the developing time required for the density value by development to reach ½ of the maximum density.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: September 4, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuaki Yoshida, Yasuaki Deguchi, Hiroyuki Yoneyama
  • Patent number: 6160037
    Abstract: Pigment composition obtainable by(a) mixing a latent pigment with a polymerizable substance, and(b) treating the mixture of step (a) with heat while mixing the reaction mixture, and(c) cooling the treated reaction mixture to room temperature, and, if desired, working up the obtained pigment composition, a process for its preparations, its use and compositions comprising it.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: December 12, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Johannes Leugs, Zhimin Hao, Abul Iqbal
  • Patent number: 6124042
    Abstract: A polyester film which has the in-plane rate of dimensional change of more than 0.02%, but not more than 0.05%, when the film is kept for 72 hours under the conditions of temperature 60.degree. C. and relative humidity 80%, and the average value of the in-plane rate of dimensional change of from -0.07% to 0.03% and the in-plane anisotropy of the in-plane rate of dimensional change of from 0% to 0.08%, when the film is kept for 30 minutes at a temperature of 105.degree. C. This polyester film is low in heat shrinkage and excellent in thermal dimensional stability. A heat-development, photographic light-sensitive material using the polyester film is low in heat shrinkage and excellent in thermal dimensional stability.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: September 26, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyokazu Hashimoto
  • Patent number: 6120980
    Abstract: A silver halide emulsion is disclosed, comprising silver halide grains having a variation coefficient of a grain diameter of 20% or less, at least 50% of total grain projected area being accounted for by tabular silver halide grains having an aspect ratio of 2 or more, said tabular grains each having 10 or more dislocation lines per grain in the peripheral region of the grain and having a variation coefficient of dislocation line length of 20% or less. A color photographic material by use of the emulsion is also disclosed.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: September 19, 2000
    Assignee: Konica Corporation
    Inventors: Hiromoto Ii, Rieko Ren, Sadayasu Ishikawa
  • Patent number: 5994047
    Abstract: A silver halide color photosensitive material comprising at least one polymer coupler, the polymer coupler being a copolymer prepared from at least one yellow coupler monomer and at least one magenta coupler monomer, and additionally, if desired, at least one non-color-forming monomer having at least one ethylene group, which has no capability to couple with an oxidized product of an aromatic primary amine developing agent. Further, a color filter produced from the above described color photosensitive material and a production method thereof are disclosed.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: November 30, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Tatsuya Igarashi, Hiroyuki Hirai
  • Patent number: 5976411
    Abstract: The invention provides molded, extruded or formed phosphorescent plastic articles having laser marked indicia and methods for preparing the articles. The indicia may be seen as a contrast against a phosphorescent background or, alternatively, the indicia may themselves be phosphorescent. An article of the invention has a composition comprising about 50% to about 99% by weight of a thermoplastic or thermosetting resin, about 1% to about 50% by weight of a phosphorescent phosphor pigment and about 0.001% to about 1% by weight of a laser energy absorbing additive. Resin compositions which themselves are laser energy absorbing do not require the additive; however, the addition of small quantities of the laser energy additive enhances the quality and contrast of the laser mark.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: November 2, 1999
    Assignee: M.A. HannaColor
    Inventors: Ke Feng, Jerry Alan Bodi
  • Patent number: 5902721
    Abstract: When a color negative film is developed in 2 minutes or less at a temperature of less than 40.degree. C. and contains in overlying blue and green recording layer units high bromide silver halide grains containing from 1 to 10 mole percent iodide, based on silver, and in an underlying red recording layer unit high bromide silver halide grains containing less than 0.05 mole percent iodide, based on silver, and at least 1.times.10.sup.-6 mole per silver mole of a hexacoordination complex of a Group 8 metal and coordination ligands, at least four of the ligands being anionic and at least one of the ligands being more electronegative than halide ligands, loss of lower scale contrast in the red record attributable to the faster time of development is avoided.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: May 11, 1999
    Assignee: Eastman Kodak Company
    Inventors: John H. Becher, Roger A. Bryant
  • Patent number: 5750318
    Abstract: A laser-exposed thermal recording element comprising a support having thereon a pigment layer comprising a pigment dispersed in a polymeric binder, the pigment absorbing at the wavelength of a laser used to expose the element, wherein the pigment comprises the formula:Cu.sub.2-x M.sub.x (OH).sub.y R.sub.z :M'.sub.wwherein:M is at least one metal atom,M' is at least one alkali metal,R is at least one anion,w is between 0 and 2,x is between 0 and 1.5,y and z are selected to maintain charge neutrality, with the proviso that w, x and z cannot all be 0.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: May 12, 1998
    Assignee: Eastman Kodak Company
    Inventors: Patrick M. Lambert, David P. Trauernicht, Joseph F. Bringley
  • Patent number: 5672465
    Abstract: Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: September 30, 1997
    Assignee: JP Laboratories, Inc.
    Inventors: Gordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel
  • Patent number: 5623040
    Abstract: Compounds of formulae I and II ##STR1## wherein R is phenyl and R.sub.1 to R.sub.4 are H or a substituent such as phenylthio, and one of the substituents R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is a group of formula III--X--C(O)--CR.sub.5 .dbd.C(R.sub.6).sub.2 (III)or R is substituted by a group of formula III, wherein X is a linking group or --X--C(O)-- is a direct bond, and R.sub.5 and R.sub.6 are each independently of the other H, halogen, C.sub.1 -C.sub.12 alkyl or C.sub.6 -C.sub.10 aryl, can be polymerised to homopolymers or copolymers. The monomers and polymers are reversible photochromic systems which can be used as colour indicators, as photochemically modifiable colour filters, or for the optical storage of information.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: April 22, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Evelyn Fischer, Walter Fischer
  • Patent number: 5604004
    Abstract: A formazan metal complex dye is contained as a light absorbing dye in a recording layer to construct an optical recording medium. The formazan metal complex dye has high solubility and a relatively-low thermal decomposition temperature and the recording medium exhibits high sensitivity, especially high recording sensitivity, and improved light resistance. The formazan metal complex dye can be used as a photo-stabilizer in an optical recording medium. The formazan metal complex dye is also effective for stabilizing conventional dyes against light.
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: February 18, 1997
    Assignee: TDK Corporation
    Inventors: Takahiko Suzuki, Masahiro Shinkai, Kenryo Namba
  • Patent number: 5580696
    Abstract: An optical recording medium has a substrate, and a right absorbing layer serving as a recording layer formed of the substrate. The light absorbing layer contains a metallo-phthalocyanine compound of formula (I): ##STR1## wherein M is Mn, Fe, Co, Zn or Cd; and either A.sup.1 or A.sup.2, either A.sup.3 or A.sup.4, either A.sup.5 or A.sup.6, and either A.sup.7 or A.sup.8 is --OR group or --SR group in which R is a group including --N.dbd. or --N<, and the other is hydrogen.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: December 3, 1996
    Assignees: Ricoh Company, Ltd., Yamada Chemical Co., Ltd.
    Inventor: Toru Yashiro
  • Patent number: 5459265
    Abstract: There is disclosed a silver halide photographic light-sensitive material having a hydrophilic colloid layer containing a dye which is photochemically inactive and can readily be decolored and/or eluted in a photographic processing course. The silver halide photographic light-sensitive material comprises a hydrophilic colloid layer containing at least one dye dispersed in the form of a solid fine particle represented by Formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, X.sub.1, X.sub.2, L.sub.1, L.sub.2, L.sub.3 are defined in the disclosure.In a preferred embodiment, the maximum absorption wavelength .lambda.max of the dye in the hydrophilic colloid layer satisfies the following equation:.lambda.max>[.lambda.max(DMF)+20.times.(n+1)] nmwherein .lambda.max(DMF) and n are defined in the disclosure. There is also disclosed an oxonol compound which is useful as a dye.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: October 17, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koji Wariishi, Keiichi Suzuki
  • Patent number: 5420000
    Abstract: Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: May 30, 1995
    Assignee: JP Laboratories, Inc.
    Inventors: Gordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel
  • Patent number: 5279932
    Abstract: An optical response element is disclosed, comprising at least a photosensitive chromoprotein and a substance capable of changing its optical characteristics on application of an electric field or through an electrochemical reaction.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: January 18, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsutomu Miyasaka, Makoto Shizukuishi
  • Patent number: 5242785
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains (1) at least one compound selected from the group consisting of compounds represented by the general formula (I), (II) or (III) and dimers or higher polymers containing at least one moiety derived from the compounds, and (2) at least one compound selected from the group consisting of organic color fading preventing agents represented by the general formula (IV) and dimers or higher polymers containing at least one moiety derived from the agents, organic metal complexes containing copper, cobalt, nickel, palladium or platinum as the central metal and having at least one organic ligand having at least one conformation and dimers or higher polymers containing at least one moiety derived from the complexes: ##STR1## wherein R.sub.30 represents an aliphatic group, an aromatic group or a heterocyclic group; R.sub.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: September 7, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto
  • Patent number: 5192650
    Abstract: A silver halide color photographic material is disclosed, which comprises a support having thereon a photographic layer containing at least one compound represented by formula (I): ##STR1## wherein each of R.sub.01, R.sub.02 and R.sub.03, which may be the same or different, represents a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R.sub.01 and R.sub.02, R.sub.02 and R.sub.03, and R.sub.01 and R.sub.03 may be combined with each other, provided that all of R.sub.01, R.sub.02 and R.sub.03 are not hydrogen atoms at the same time; each of X.sub.01, X.sub.02 and X.sub.03, which may be the same or different, represents a mere bond, --O--, --S-- or ##STR2## and R.sub.04 has the same meaning as R.sub.01.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: March 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5087554
    Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene. It is preferred that the dispersions have a pH of between about 5 and 5.5.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: February 11, 1992
    Assignee: Eastman Kodak Company
    Inventors: Krishnan Chari, James T. Beck
  • Patent number: 5055373
    Abstract: A multicolor recording material is disclosed, which comprises a support having provided thereon a coating layer comprising two or more kinds of microcapsules each containing at least a leuco dye capable of being colored by oxidation and a photo oxidizing agent outside said microcapsules, and a reducing agent as necessary components, with two or more leuco dyes capable of forming different colors from each other being retained in different kinds of said microcapusles respectively composed of walls of high polymers having different glass transition points.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: October 8, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiso Saeki, Fumiaki Shinozaki, Toshiaki Endo
  • Patent number: 5053440
    Abstract: Molding compounds, semi-finished products and finished articles comprising polymeric material which can be inscribed by means of laser light. The products contain an additive which is virtually colorless in the visible spectral range and produces a marking with high color contrast in the visible spectral range under the effect of laser light outside the visible range.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: October 1, 1991
    Assignee: Huels Aktiengesellschaft
    Inventors: Ralf Schueler, Christian Herkt-Maetzky, Wilfried Bartz
  • Patent number: 5006446
    Abstract: A medium for image formation which comprises a monomolecular film or monomolecular built-up film of a metal chelate compound and a process for image formation which comprises (1) manipulating the adsorption of a gas on a metal chelate compound and the desorption of the gas therefrom or (2) reducing metal ions in molecules of a metal chelate compound.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: April 9, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Haruta, Hiroshi Matsuda, Hirohide Munakata, Yukuo Nishimura
  • Patent number: 4965174
    Abstract: A recording medium is provided which comprises a recording layer comprising at least one set of image-forming units containing a region holding a photosensitive protein and a color-developing means capable of developing a color according to a change in the hydrogen ion concentration in the region. Each of said image-forming units within the same set having a photosensitive protein sensitive to a different wavelength.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: October 23, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Arai, Masahiro Haruta, Nobuko Yamamoto, Tetsuya Yano, Hiroyoshi Kishi, Masanori Sakuranaga
  • Patent number: 4959406
    Abstract: Plastic containing small amounts of titanium dioxide and, if appropriate, carbon black and an additive which reduces the tracking resistance, for the production of laser-writable mouldings.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: September 25, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eckard Foltin, Hans-Werner Depcik, Karl Huff, Alfred Pischtschan, Mehmet C. Yesildag, Reiner Erkelenz
  • Patent number: 4942119
    Abstract: Silver sodalites with cages containing anions such as oxalate, formate, halide, carbonate, sulphide etc. have silver compositions entrapped or encapsulated in the cages of a microporous sodalite lattice. The cages of the sodalite lattice have very small but very even sizes e.g. 6.6 A diameters, so that the silver compositions trapped therein are also of very small but very even sizes. The silver compositions may be sensitive to the application of light, and may be sensitive to thermal or pressure stimuli. Thus, images produced by, for example, irradiation of the materials can be of very high resolution. The silver sodalite materials are prepared by a silver ion exchange process, from synthetic sodium sodalites.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: July 17, 1990
    Inventors: Geoffrey A. Ozin, John Godber, Andreas Stein
  • Patent number: 4929530
    Abstract: An optical image forming material comprising a support (A) at least one member selected from the group consisting of oxidative-developable leuco dyes, (B) at least one member selected from the group consisting of photo-oxidizing agents, (C) at least one reducing agent and (D) at least one organic sulfonamide compound and/or at least one member selected from the group consisting of hydroxy compounds represented by the following formula (I) or (II) ##STR1## wherein R.sub.1 to R.sub.11 are as described herein, the leuco dye (A) and the photo-oxidizing agent (B) being present in microcapsules, and the reducing agent (C) and the organic sulfonamide compound and/or the hydroxy compound (D) being present outside of the microcapsules.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: May 29, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiso Saeki, Tosiaki Endo
  • Patent number: 4874688
    Abstract: For incorporation of substantially water-insoluble photographic additives such as couplers into hydrophilic organic colloid layers of silver halide photographic materials, a phthalic acid ester of a formula (I): ##STR1## where R.sub.1 and R.sub.2 may be same or different and each represents a branched alkyl group having no more than 7 carbon atoms, is used so that said additives can effectively be dispersed in the colloid layers. Accordingly, the solubility and dispersibility of the additives is improved; the long-term stability of the additive dispersion is improved, and further and latent image storability and color-forming properties of the photographic material are also improved over the prior art photographic materials.
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: October 17, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Ozawa, Hidetoshi Kobayashi
  • Patent number: 4818665
    Abstract: A medium for image formation which comprises a monomolecular film or monomolecular built-up film of a metal chelate compound and a process for image formation which comprises (1) manipulating the adsorption of a gas on a metal chelate compound and the desorption of the gas therefrom or (2) reducing metal ions in molecules of a metal chelate compound.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: April 4, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Haruta, Hiroshi Matsuda, Hirohide Munakata, Yukuo Nishimura
  • Patent number: 4775656
    Abstract: A recording material comprises a layer containing a leuco dye provided on a support, characterized in that the leuco dye has the formula (I): ##STR1## in which one of X and Y is a single bond and the other is sulfur atom; each of R.sub.1 and R.sup.2 independently is an alkyl group, a cycloalkyl group or an aralkyl group; each of R.sup.3 and R.sup.4 independently is hydrogen, a halogen atom, an alkyl group, an alkoxy group, a cycloalkyl group, an aralkyl group or an aryloxy group; R.sup.5 is hydrogen, a halogen atom, an alkyl group, an alkoxy group, nitro or amino; and each of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may have one or more substituent groups.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: October 4, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Toshiyuki Watanabe