Two Or More Separate Ring Structures Patents (Class 430/591)
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Patent number: 10265315Abstract: Small molecule regulators of steroid receptor coactivator (SRC) family proteins are provided, as well as methods for their use in treating or preventing SRC-related diseases. The SRC-related diseases can include cancer, metabolic disorders, human immunodeficiency virus, neurodegenerative disorders, and/or inflammatory diseases. Also provided are methods for regulating SRC family proteins in a cell.Type: GrantFiled: April 6, 2017Date of Patent: April 23, 2019Assignee: BAYLOR COLLEGE OF MEDICINEInventors: Bert W. O'Malley, David Michael Lonard, Jin Wang, Jianming Xu, Jianwei Chen
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Patent number: 7291449Abstract: Disclosed is a silver halide photographic material which comprises at least one methine dye represented by the following formula (I): wherein Y represents a furan ring or a pyrrole ring, and Y may further be condensed with other 5- or 6-membered carbocyclic ring or heterocyclic ring, or may have a substituent; the bond between two carbon atoms in which Y is condensed may be a single bond or a double bond; Z represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring, and Z may further be condensed with other 5- or 6-membered carbocyclic ring or heterocyclic ring; R represents a substituted or unsubstituted alkyl group, aryl group, or heterocyclic group; D represents a group necessary to form a methine dye; L1 and L2 each represents a methine group; p represents 0 or 1; M represents a counter ion; and m represents a number of 0 or higher necessary to neutralize the charge in the molecule.Type: GrantFiled: August 17, 2001Date of Patent: November 6, 2007Assignee: Fujifilm CorporationInventors: Tetsuo Nakamura, Takanori Hioki, Katsuhisa Ohzeki, Naoyuki Hanaki
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Patent number: 7172856Abstract: A silver halide photographic light-sensitive material having high sensitivity and having a desired spectral sensitivity distribution. A silver halide photographic light-sensitive material comprising at least one multichromophore dye compound having at least two dye chromophores connected by covalent bonding or coordinate bonding, at least two of the dye chromophores forming a dye chromophore group and the light absorption of the dye chromophore group differing from the sum of individual light absorptions of respective dye chromophores constituting said dye chromophore group.Type: GrantFiled: July 22, 2002Date of Patent: February 6, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Takanori Hioki, Hiroo Takizawa, Katsuhiro Yamashita
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Patent number: 6787297Abstract: This invention provides a silver halide photographic element comprising at least one silver halide emulsion comprising silver halide grains which have associated therewith at least an inner dye layer and an outer dye layer wherein the outer dye layer comprises a dye having at least one substituent that has a positive charge, said photographic element further comprising a cyanine dye of formula (I) or (II) (as described in the specification) that is capable of spectrally sensitizing a silver halide emulsion.Type: GrantFiled: May 12, 2003Date of Patent: September 7, 2004Assignee: Eastman Kodak CompanyInventors: Steven G. Link, Richard L. Parton, Robert D. Wilson, Roger A. Bryant, William J. Harrison
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Patent number: 6750003Abstract: A silver halide photographic material comprising a support and at least one photosensitive silver halide emulsion layer, wherein the emulsion layer comprises a compound represented by the following formula (1): Dye1-&Parenopenst;L1&Parenopenst;Dye2)m1)m2.CIy (1) wherein Dye1 represents a first chromophore; Dye2 represents a xanthene dye; L1 represents a linking group; m1 represents an integer of from 1 to 5; m2 represents an integer of from 1 to 5; CI represents an ion for neutralizing a charge; and y represents a number necessary for neutralizing the charge.Type: GrantFiled: March 20, 2003Date of Patent: June 15, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroo Takizawa
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Publication number: 20030228549Abstract: To provide a silver halide photographic light-sensitive material having high sensitivity and having a desired spectral sensitivity distribution.Type: ApplicationFiled: July 22, 2002Publication date: December 11, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Takanori Hioki, Hiroo Takizawa, Katsuhiro Yamashita
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Patent number: 6649337Abstract: A heat-developable photosensitive material comprises: a support; a photosensitive silver halide; a non-photosensitive organic silver salt; a reducing agent for a silver ion; a binder; and a compound having specified structure.Type: GrantFiled: November 15, 2001Date of Patent: November 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Takanori Hioki, Katsumi Kobayashi
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Publication number: 20030198906Abstract: A silver halide photographic material comprising a support and at least one photosensitive silver halide emulsion layer, wherein the emulsion layer comprises a compound represented by the following formula (1):Type: ApplicationFiled: March 20, 2003Publication date: October 23, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Hiroo Takizawa
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Patent number: 6610468Abstract: A silver halide photographic material having high sensitivity, low fog and good shelf life (i.e., storage stability), which comprises at least one kind of merocyanine dye represented by formula (I): wherein Z1 represents an atomic group necessary for forming a naphthoxazole ring, R1 and R2 each represents an unsubstituted or substituted alkyl group, an aryl group or a heterocyclic group, L1, L2, L3 and L4 each represents a methine group, M1 represents a charge neutralizing counter ion, and m1 is a number of 0 or more necessary for neutralizing a charge in a molecule.Type: GrantFiled: April 10, 2001Date of Patent: August 26, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Katoh, Tomoyuki Ohzeki, Katsutoshi Yamane, Takanori Hioki
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Patent number: 6558893Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes comprising: (a) a first dye which is a cyanine dye of formula Ia and has a net charge of zero or −1 wherein the substituents are as defined in the specification; (b) a second dye which has at least one substituent that has a positive charge, and is a cyanine dye a merocyanine dye, arylidene dye, complex cyanine dye, complex merocyanine dye, homopolar cyanine dye, hemicyanine dye, styryl dye, hemioxonol dye, oxonol dye, anthraquinone dye, triphenylmethane dye, azo dye type, azomethines, or a coumarin dye, with the proviso that if the second dye is a cyanine dye, it is of formula IIa: wherein the substituents are as defined in the specification; and wherein (c) the wavelength of maximum light absorption, in nanometers (nm), of the first dye and the waveleType: GrantFiled: November 17, 2000Date of Patent: May 6, 2003Assignee: Eastman Kodak CompanyInventors: Richard L. Parton, Andrei Andrievsky, Thomas L. Penner, William J. Harrison
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Patent number: 6541176Abstract: There is disclosed a process for making a lithographic printing plate, which comprises subjecting a lithographic printing material having at least a silver halide emulsion layer and a physical development nuclei layer on a support and having a sensitivity at a wavelength of 400 nm to 440 nm of 20 &mgr;J/cm2 or less, and having substantially no sensitivity at a wavelength of 450 nm or longer to scanning exposure by a scanning type exposure device on which a violet laser diode is mounted, and then subjecting to developing treatment.Type: GrantFiled: April 2, 2001Date of Patent: April 1, 2003Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Takashi Miyazaki, Satoshi Shimonodan, Etsuji Tanaka, Motozo Yamano
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Patent number: 6531272Abstract: This invention comprises a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said layers comprises large tabular grains having an average circular diameter of greater than 2 &mgr;m and contains a fragmentable electron donating compound is of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a prType: GrantFiled: January 25, 1999Date of Patent: March 11, 2003Assignee: Eastman Kodak CompanyInventors: James A. Friday, Joseph P. Pepe, Jeffrey C. Hansen, Annabel A. Muenter, Jerome R. Lenhard
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Patent number: 6518008Abstract: A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said silver halide emulsion layers contains a tabular grain silver halide emulsion having a halide content of at least 95% bromide and less than about 5% iodide, said iodide being substantially uniformly distributed in the silver halide grains of said emulsion, and said emulsion is sensitized with a fragmentable electron donor of the formula X—Y′ or an electron donor which contains an —XY′ moiety; whereinType: GrantFiled: January 25, 1999Date of Patent: February 11, 2003Assignee: Eastman Kodak CompanyInventors: James A. Friday, Roger A. Bryant, Annabel A. Muenter, Jerome R. Lenhard
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Publication number: 20020168599Abstract: A silver halide photographic material is disclosed, comprising at least one silver halide emulsion layer provided on a support, the emulsion layer comprising a silver halide emulsion containing at least two sensitizing dyes represented by the following general formula (I): 1Type: ApplicationFiled: January 30, 2002Publication date: November 14, 2002Inventors: Tetsuo Nakamura, Kimiyasu Morimura, Takanori Hioki
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Patent number: 6472137Abstract: A light-sensitive silver halide photographic film material has been provided, said film material comprising a transparent support and on both sides thereof at least one light-sensitive emulsion layer having spectrally and chemically sensitized tabular silver halide grains rich in silver bromide, further having silver iodide in an amount of less than 3 mole % based on silver, with two flat parallel {111} crystal faces, said grains accounting for a total projective surface of said parallel crystal faces in said emulsion of at least 50%, further having an average aspect ratio of at least 2:1, a grain thickness of from 0.05 up to 0.Type: GrantFiled: November 13, 2000Date of Patent: October 29, 2002Assignee: Agfa-GevaertInventors: Ann Verbeeck, Paul Callant, Freddy Henderickx
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Publication number: 20020155400Abstract: A compound represented by the following formula (1) and a silver halide photographic material containing the compound: 1Type: ApplicationFiled: August 31, 2001Publication date: October 24, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Hiroo Takizawa
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Patent number: 6444392Abstract: A black and white graphic arts film comprising a support having thereon at least one emulsion layer, said emulsion layer comprising: a trinuclear merocyanine spectral sensitising dye; 2-methylthio-4-hydroxy-6-methyl-1,3,3a,7-tetraazaindene (SMe-TAI); and a photosensitive silver halide.Type: GrantFiled: August 10, 2001Date of Patent: September 3, 2002Assignee: Eastman Kodak CompanyInventor: Julie Baker
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Publication number: 20020086250Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having thereon at least on light-sensitive halide emulsion layer, wherein the emulsion layer contains a compound represented by formula (1).Type: ApplicationFiled: April 26, 2001Publication date: July 4, 2002Inventors: Takashi Katoh, Hiroo Takizawa
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Patent number: 6413711Abstract: A photothermographic material is disclosed, comprising a support and a photosensitive layer containing an organic silver salt, a photosensitive silver halide and a binder, wherein the photosensitive layer or the support contains a dye represented by formula (1), and the photosensitive silver halide being spectrally sensitized with at least a sensitizing dye represented by formulas (2a) through (2d).Type: GrantFiled: September 5, 2000Date of Patent: July 2, 2002Assignee: Konica CorporationInventor: Soc Man Ho Kimura
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Patent number: 6365335Abstract: A Silver halide photographic material high in sensitivity and decreased in residual color is disclosed, which comprises at least one compound represented by the following formula (I): wherein Z1 represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, a carbon atom or a nitrogen atom; Q represents a group necessary for forming a methine dye; M1 represents a charge equilibrium counter ion; m1 represents the number necessary for neutralizing a charge of the molecule; Vp represents a group having a log P value lower than that of Cl; q1 represents 1, 2, 3 or 4; and R1 is represented by following: R1=(La)k1CONHSO2R11, R1=(Lb)k2SO2NHCOR12, R1=(Lc)k3CONHCOR13, R1=(Ld)k4SO2NHSO2R14 wherein R11, R12, R13 and R14 each represents an alkyl group, an aryl group, a heterocyclic group, an alkoxyl group, an aryloxy group, a heterocyclyloxy group or an amino group; La, Lb, Lc and Ld each represents a methylene group; and k1, k2, k3 a nd k4 each represents aType: GrantFiled: August 13, 1999Date of Patent: April 2, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Takanori Hioki, Kiyoshi Morimoto
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Patent number: 6333146Abstract: Disclosed is a compound represented by the following formula (I): wherein Z1 represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring; Z2 represents an atomic group necessary to form a 5- or 6-membered heterocyclic ring, Z2 may further be substituted, or may be condensed with a hetero ring or a benzene ring; R1 represents a hydrogen atom, a halogen atom, a mercapto group, an alkyl group, an alkenyl group, an aryl group, an alkylthio group, an alkenylthio group, or an arylthio group; L1 and L2 each represents a methine group; p1 represents 0 or 1; V1 represents a substituent; and n represents 0, 1 or 2, and when n represents 2, a plurality of V1 may be the same or different.Type: GrantFiled: March 10, 2000Date of Patent: December 25, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsumi Kobayashi, Takashi Katoh, Junji Nishigaki
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Patent number: 6329135Abstract: A silver halide photothermographic material is disclosed, comprising a support having thereon a light-sensitive layer and light-insensitive layer, wherein the light-sensitive layer or the light-insensitive layer comprises a heteroatom-containing macrocyclic compound, and the light-sensitive layer comprising a sensitizing dye exhibiting maximum sensitivity at a wavelength of 600 nm or more.Type: GrantFiled: June 2, 2000Date of Patent: December 11, 2001Assignee: Konica CorporationInventor: Hiroshi Kashiwagi
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Patent number: 6329133Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes wherein (b) (a) a dye having at least one substituent that has a negative charge is present, a dye having at least one substituent that has a positive charge is present, wherein at least one of the dyes is further substituted with at least one hydrogen bonding donor substituent. In a preferred embodiment, at least one of the dyes is substituted with at least two hydrogen bonding donor substituents. In another preferred embodiment a silver halide photographic material comprises at least one silver halide emulsion comprising silver halide grains having associated therewith a dye substituted with at least one guanidinium, amidinium, or imine of urea substituent.Type: GrantFiled: September 13, 1999Date of Patent: December 11, 2001Assignee: Eastman Kodak CompanyInventors: Andrei Andrievsky, Richard L. Parton, Thomas L. Penner, William J. Harrison
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Patent number: 6265146Abstract: A thermally developable photosensitive material of enhanced sensitivity, reduced variation in sensitivity following pre-exposure storage and improved silver image tone is disclosed, comprising a support having thereon an organic silver salt, a binder, a photosensitive silver halide, an infrared-sensitizing dye and a heteroatom containing macrocyclic compound.Type: GrantFiled: February 25, 2000Date of Patent: July 24, 2001Assignee: Konica CorporationInventor: Hiroshi Kashiwagi
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Patent number: 6245499Abstract: In a photothermographic material comprising an organic silver salt, a silver halide, and a reducing agent, a hydrazine compound of a special structure and a sensitizing dye of a special structure are contained. The photothermographic material shows high Dmax and ultrahigh contrast.Type: GrantFiled: August 21, 1998Date of Patent: June 12, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiichi Suzuki, Toshiaki Kubo, Yoshio Inagaki, Tsutomu Arai
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Patent number: 6162571Abstract: A photoconductive imaging member comprised of an unsymmetrical perylene of the formula ##STR1## wherein each R.sub.1 and R.sub.2 are dissimilar and wherein the R.sub.1 and R.sub.2 are hydrogen, alkyl, cycloalkyl, substituted alkyl, aryl, substituted aryl, aralkyl, and substituted aralkyl, and X represents a symmetrical bridging component, and y represents the number of X components.Type: GrantFiled: October 2, 1998Date of Patent: December 19, 2000Assignee: Xerox CorporationInventors: James M. Duff, C. Geoffrey Allen, Ah-Mee Hor, Roger E. Gaynor
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Patent number: 6153371Abstract: This invention comprises a photographic element comprising a support and at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula:Q-XYwherein Q represents the atoms necessary to form a chromophore comprising an amidinium-ion, a carboxyl-ion or dipolar-amidic chromophoric system when conjugated with XY, and XY is a fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein:1) XY has an oxidation potential between 0 and about 1.4 V;2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X.sup..cndot. and the leaving fragment Y.In a preferred embodiment of the invention, the radical X.cndot. has an oxidation potential <-0.7V.Type: GrantFiled: July 17, 1998Date of Patent: November 28, 2000Assignee: Eastman Kodak CompanyInventors: Samir Y. Farid, Ian R. Gould, Stephen A. Godleski, Jerome R. Lenhard, Annabel A. Muenter, Paul A. Zielinski
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Patent number: 6150063Abstract: An electrophotographic photoconductor comprises a charge generation layer containing a phthalocyanine compound as a charge generation material and a charge transfer layer containing a charge transfer material of a hole transfer type, the charge generation layer and the charge transfer layer are laminated on a conductive support, wherein the charge generation layer has an ionization potential of at least 5.6 eV.Type: GrantFiled: April 14, 2000Date of Patent: November 21, 2000Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Sugimura, Yuko Takeda
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Patent number: 6099997Abstract: A photosensitive recording material containing a support and a charge generating layer (CGL) in contiguous relationship (contact) with a charge transporting layer (CTL), containing an n-charge transporting material (n-CTM), wherein the binder of the charge generating layer (CGL) is made insoluble in methylene chloride by crosslinking, and the binder is composed essentially of one or more polyepoxy compounds self-crosslinked under the influence of an amine catalyst and/or crosslinked by reaction with at least one primary and/or secondary poly NH-group amine.Type: GrantFiled: June 27, 1996Date of Patent: August 8, 2000Assignee: Agfa-Gevaert, N.V.Inventors: David Terrell, Stefaan De Meutter, Marcel Monbaliu
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Patent number: 6074792Abstract: A pigment includes a compound with a tetraazaporphyrin skeleton represented by formula (I): ##STR1## wherein M is a hydrogen atom, or an atom or compound capable of bonding to tetraazaporphyrin through a covalent bond or a coordinate bond; and R.sup.1 to R.sup.8 are each independently a hydrogen atom, a lower alkyl group which may have a substituent, or an aryl group which may have a substituent. In addition, the above-mentioned pigment is used as a charge generation material in an electrophotographic photoconductor comprising an electroconductive support and a photoconductive layer formed thereon.Type: GrantFiled: July 13, 1998Date of Patent: June 13, 2000Assignee: Ricoh Company, Ltd.Inventors: Michihiko Namba, Masayuki Shoshi, Kaoru Tadokoro
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Patent number: 6051351Abstract: Photoconductive imaging members comprised of a mixture of dimeric perylenes as a charge generator, wherein said mixture comprises at least perylenes encompassed by the following formulas, or mixtures thereof ##STR1## wherein R is hydrogen, alkyl, cycloalkyl, oxaalkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl; and X is a symmetrical bridging moiety, and X--Y represents an unsymmetrical bridging moiety.Type: GrantFiled: May 21, 1999Date of Patent: April 18, 2000Assignee: Xerox CorporationInventors: Cheng-Kuo Hsiao, Ah-Mee Hor, James M. Duff, Giuseppa Baranyi, C. Geoffrey Allen
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Patent number: 6042980Abstract: Charge generation layers for photoconductors comprise a binder and a charge generation compound, wherein the binder comprises a blend of polyvinylbutyral polymer and at least one resin which improves at least one electrical characteristic of a photoconductor in which the charge generation layer is included. Photoconductors comprise the charge generation layer in combination with a substrate and a charge transport layer.Type: GrantFiled: July 21, 1998Date of Patent: March 28, 2000Assignee: Lexmark Internatonal, Inc.Inventors: Laura Lee Kierstein, Kasturi Rangan Srinivasan
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Patent number: 6022657Abstract: Methods of making a charge generation layer comprise premixing a charge generation compound, a charge transport compound and solvent to form a premix essentially free of polymeric binder, mixing the premix with at least one polymeric binder to form a dispersion, and coating the dispersion on a substrate. Photoconductors comprising a substrate, a charge transport layer and a charge generation layer formed by such a method exhibit improved electrical sensitivity.Type: GrantFiled: December 22, 1998Date of Patent: February 8, 2000Assignee: Lexmark International, Inc.Inventors: Sterritt R. Fuller, Jr., Gregory Walter Haggquist, Laura Lee Kierstein, Ronald Harold Levin, Scott Thomas Mosier, Jennifer Kaye Neely, Catherine Mailhe Randolph
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Patent number: 6022656Abstract: A photoconductive element comprising an electrically conductive support and at least one active layer, said active layer comprising N-(p-(di-p-tolylamino)phenyl)-N'-(1,2-dimethylpropyl)-1,4,5,8-naphthalenet etracarboxylic diimide and one or more perylene dyes of structure I: ##STR1## wherein R.sub.1 and R.sub.2 are, each independently, ##STR2## and R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 are, each independently, H, CH.sub.3, or C.sub.2 -C.sub.4 alkyl, linear or branched.Type: GrantFiled: April 30, 1998Date of Patent: February 8, 2000Assignee: Eastman Kodak CompanyInventors: Susan A. Visser, Paul M. Borsenberger, Jeanne E. Kaeding
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Patent number: 6001521Abstract: For providing an electrophotographic photosensitive member that can always maintain good images without occurrence of fusion of toner, independent of the circumstances and the combination of urging pressure of a cleaner, process speed, components contained in toner, etc. and that can always maintain good images of high resolution and even density without occurrence of uneven shaving against a cleaning system or toner, the outermost surface thereof is comprised of a non-monocrystalline carbon film comprising hydrogen and having a dynamic hardness not less than 300 kgf/mm.sup.2 nor more than 1300 kgf/mm.sup.2 measured using a diamond stylus of a triangular pyramid having a tip of a radius not more than 0.1 .mu.m and an edge-to-edge angle of 115.degree.Type: GrantFiled: October 27, 1998Date of Patent: December 14, 1999Assignee: Canon Kabushiki KaishaInventors: Junichiro Hashizume, Shigenori Ueda, Makoto Aoki
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Patent number: 5989799Abstract: A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50% and more preferably at least 80% of their emitted radiation in the wavelength range shorter than 380 nm, as e.g. a niobium and gadolinium doped, monoclinic M, yttriumtantalate (MYT) phosphor corresponding to formula IYTaO.sub.4 :Gd:Nb (I),ii) said film comprises {111} tabular silver halide grains rich in silver chloride, spectrally sensitive to irradiation in the said wavelength range shorter than 380 nm by the presence of at least one azacyanine dye as a spectral sensitizer.Type: GrantFiled: June 18, 1998Date of Patent: November 23, 1999Assignee: Agfa-Gevaert. N.V.Inventors: Ann Verbeeck, Peter Verrept, Paul Callant, Koenraad Caron
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Patent number: 5928854Abstract: A silver halide photosensitive material is described, which comprises at least one of the compounds represented by the following formula (I) ##STR1## wherein Z.sub.1 and Z.sub.2 each represents an atomic group necessary for forming a five- or six-membered nitrogen-containing heterocyclic ring, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an alkyl group, an aryl group or a heterocyclic group, Q represents a divalent linking group or a single bond, with the proviso that at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and Q is substituted with a water-soluble group, L.sub.1, L.sub.2, L.sub.3, L.sub.4, L.sub.5, L.sub.6, L.sub.7 and L.sub.8 each represents a methine group, n.sub.1 and n.sub.2 each is 0, 1, 2, 3 or 4, p.sub.1 and p.sub.2 each is 0 or 1, M.sub.1 represents a charge equilibrium counter ion, and m.sub.1 is a number of from 0 to 10, which is necessary for neutralizing charge of the molecule.Type: GrantFiled: June 2, 1998Date of Patent: July 27, 1999Assignee: Fuji Photo Film Co., Ltd.Inventor: Takanori Hioki
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Patent number: 5885764Abstract: A silver halide photographic light-sensitive material is disclosed containing at least one methine compound represented by formula (I) or (III). Further disclosed is the methine compound represented by formula (I).Type: GrantFiled: September 30, 1997Date of Patent: March 23, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsumi Kobayashi, Takanori Hioki, Takeshi Suzumoto
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Patent number: 5871897Abstract: A silver halide photographic material is disclosed, which contains a connected-dye compound having a fixed configuration in which one cyanine dye plane is in parallel with and lies over the other so that the connected-dye compound always shows an absorption assignable to a cyanine dye aggregate thereof. The silver halide photographic material has excellent storage stability.Type: GrantFiled: June 26, 1996Date of Patent: February 16, 1999Assignee: Fuji Photo Film Co., Ltd.Inventor: Takashi Katoh
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Patent number: 5707794Abstract: Improved spectral sensitization with a synergistic combination of dyes is described. The two dyes include a first sensitizing dye is represented by Formula 1. ##STR1## and a second dye represented by Formula 2. ##STR2## The substituents of are defined in the description.Type: GrantFiled: November 22, 1996Date of Patent: January 13, 1998Assignee: Sterling Diagnostic Imaging, Inc.Inventor: Dietrich Max Fabricius
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Patent number: 5695909Abstract: A silver halide photographic material comprising a support having provided thereon a light-sensitive silver halide emulsion layer, said silver halide photographic material contains at least one spectral sensitizing dye represented by the following formula (I): ##STR1## wherein Z.sub.11 represents a nonmetal atomic group necessary for completing a 5- or 6-membered nitrogen-containing heterocyclic ring; Q.sub.11 represents a nonmetal atomic group necessary for completing a 5-membered nitrogen-containing heterocyclic ring; R.sub.11 represents a substituted or unsubstituted alkyl group; R.sub.12 represents a straight chain or branched alkyl, alkenyl or alkynyl group each of which contains at least one carboxyl group and at least one ester bond, amido bond or ether bond; L.sub.11 and L.sub.12 each represents a methine group; m.sub.11 represents 0 or 1; m.sub.12 represents 0, 1 or 2: X.sub.1 represents a counter ion necessary for neutralizing a charge; and n.sub.Type: GrantFiled: October 25, 1996Date of Patent: December 9, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Kazuki Yamazaki, Harumi Watanabe
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Patent number: 5691129Abstract: The present invention is directed to a dye suitable for spectral sensitization of a photographic element. Specifically, the dye is a compound having the structure: ##STR1## wherein: R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each independently represents H; halogen; alkyl of 1-6 carbons; aryl of 6-24 carbons; alkoxy of 1-6 carbons; carbonyl; or sulfonate; or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, or R.sup.3 and R.sup.4 taken together represent the atoms necessary to complete a six-membered carbocylic ring;R.sup.5 represents hydrogen, alkyl of 1-6 carbons or aryl of 6-24 carbons;R.sup.6, R.sup.7, and R.sup.8 independently represent alkyl 1-6 carbons; aryl of 6-24 carbons; or any pair of R.sup.6, R.sup.7 and R.sup.8 taken together represent a five- or six-member heterocyclic ring;X represents O, S, CH.dbd.CH, Se, Te or N--R.sup.10 ;Y represents O, S, or N--R.sup.9 ;Z represents O, S or Se;R.sup.9 represents alkyl of 1-6 carbons; or an aryl of 6-24 carbons;R.sup.Type: GrantFiled: November 12, 1996Date of Patent: November 25, 1997Assignee: Sterling Diagnostic Imaging, Inc.Inventors: Dietrich Max Fabricius, Ralf Hermann Harms, James Joseph Welter
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Patent number: 5683860Abstract: A silver halide light sensitive photographic element comprising a support bearing on one side thereof at least one light-sensitive silver halide emulsion layer, wherein the emulsion layer or a separate hydrophilic colloid layer of the element comprises a soluble absorber dye of the following formula (I): ##STR1## wherein each M is H or a counterion; each R.sup.1 and R.sup.2 independently represents H or a photographically acceptable substituent; m+p equals from 1 to 4; n+q equals from 1 to 4; and each of r and t represents from 0 to 3. In preferred embodiments of the invention, the element comprises at least one red-sensitive silver halide emulsion layer, and a dye of formula (I) is coated on the same side of the support as the red-sensitive emulsion layer.Type: GrantFiled: December 18, 1996Date of Patent: November 4, 1997Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Linda J. Beattie, Gary N. Barber
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Patent number: 5635343Abstract: A substantially inert ultraviolet absorbing compound, and photographic elements containing them, which compound has a peak absorption at less than 400 nm and being of formula (I): ##STR1## wherein: X is O or NR.sub.8, Z represents the atoms necessary to complete a 5-membered or 6-membered heterocyclic ring which includes X and N, and the 3-position of the pyrazolone ring may independently be substituted or unsubstituted;R.sub.5 is alkyl, alkenyl, or arylalkyl any of which may be substituted or unsubstituted, or R.sub.5 may form a ring with a 3-position substituent on the pyrazolone ring or a 4-position substituent on the benzo ring;R.sub.7 is alkyl, alkenyl, aryl, or heterocycle, any of which may be substituted or unsubstituted, or H; andR.sub.8 is alkyl, alkenyl, or arylalkyl any of which may be substituted or unsubstituted, or H.Type: GrantFiled: August 28, 1995Date of Patent: June 3, 1997Assignee: Eastman Kodak CompanyInventors: Donald P. Specht, Donald R. Diehl
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Patent number: 5547831Abstract: A dry process silver salt photosensitive material has a support and provided thereon a photosensitive layer containing at least an organic silver salt, a reducing agent and a photosensitive silver halide or a photosensitive silver halide forming component. The photosensitive layer is incorporated with a compound selected from the compounds (i), (ii) and (iii).Type: GrantFiled: November 16, 1993Date of Patent: August 20, 1996Assignee: Canon Kabushiki KaishaInventors: Tetsuro Fukui, Motokazu Kobayashi, Takehiko Ohi, Kazunori Ueno, Kenji Kagami, Masao Suzuki, Katsuya Nishino
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Patent number: 5541043Abstract: A silver halide color photographic material is disclosed, comrising a support provided thereon light-sensitive silver halide emulsion layers including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, and a non-image forming layer which is located farther from the support than the light-sensitive silver halide emulsion layers and adjacent to one of the light-sensitive silver halide emulsion layers, wherein a silver halide emulsion contained in the layer adjacent to the non-image forming layer is spectrally sensitized by adding a water-insoluble sensitizing dye in the form of solid particles dispersed in an aqueous medium; and the non-image forming layer contains a substantially light-insensitive silver halide fine grain emulsion having an average grain size of not more than 0.05 .mu.m and an average iodide content of 0.5 to 3.0 mol %.Type: GrantFiled: January 23, 1995Date of Patent: July 30, 1996Assignee: Konica CorporationInventors: Hiroshi Inoie, Masao Iwamuro
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Patent number: 5500337Abstract: The present invention relates to polymethine spectral sensitising dyes comprising at least one intracyclic thioether function macrocycle.These special sensitising dyes may be used in silver halide photographic products.These spectral sensitising dyes improve the sensitivity of the photographic products whilst reducing the residual dye stain.Type: GrantFiled: April 15, 1994Date of Patent: March 19, 1996Assignee: Eastman Kodak CompanyInventors: Rejane Benard, Gerard A. D. Friour, Didier J. Martin, Marcel L. P. Riveccie
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Patent number: 5466571Abstract: A silver halide photographic light-sensitive material is disclosed which comprises a support and provided thereon, a light-sensitive silver halide emulsion layer containing silver halide grains, the silver halide grains are chemically sensitized by a selenium compound and spectrally sensitized by a dye represented by formula (S-1): ##STR1##Type: GrantFiled: April 12, 1995Date of Patent: November 14, 1995Assignee: Konica CorporationInventors: Tsuyoshi Mitsuhashi, Nobuaki Kagawa
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Patent number: 5462850Abstract: There is provided a silver halide photographic material which comprises silver chloride or silver chlorobromide substantially free from silver iodide. The silver halide photographic material is excellent in rapid processability, low in fogging, and high in sensitivity and contrast.Type: GrantFiled: February 6, 1995Date of Patent: October 31, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Masahiro Asami, Naoto Ohshima, Shigeaki Otani
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Patent number: 5453353Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support and thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide emulsion layer contains a compound represented by Formula S-I and a compound represented by Formulas S-II or S-III: ##STR1##Type: GrantFiled: April 8, 1994Date of Patent: September 26, 1995Assignee: Konica CorporationInventors: Takeo Arai, Nobuaki Kagawa