Spectral Sensitizing Patents (Class 430/570)
  • Patent number: 10323104
    Abstract: The present specification relates to a dye complex, a light conversion film, and an electronic device including the same.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: June 18, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Du Hyeon Shin, Sehwan Son, Jungho Lim
  • Patent number: 9932333
    Abstract: It is intended to provide: a compound useful as an amyloid oxidation catalyst which is applicable in vivo and is applicable not only to A? peptides but to other amyloids; and a prophylactic or therapeutic drug for an amyloid-related disease, comprising the same. The present invention provides a benzothiazole compound represented by the following formula (1) wherein X represents a halogen atom; R1 represents an optionally substituted hydrocarbon group; R2 represents a hydrogen atom or an optionally substituted hydrocarbon group; R3 and R4 are the same or different and each represent a hydrogen atom, an optionally substituted hydrocarbon group, an alkoxy group, a halogen atom, an amino group, a nitro group, or a cyano group; R2 and R4 optionally together form an alkylene group; and R5 represents an anion.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: April 3, 2018
    Assignee: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Motomu Kanai, Yohei Soma, Atsuhiko Taniguchi, Yusuke Shimizu
  • Patent number: 9682970
    Abstract: The invention provides compounds, including fluorescent nucleic acid dyes, and methods for use including nucleic acid detection, nucleic acid amplification reactions, and high-resolution melt curve analysis. Further provided are kits, instruments and systems comprising compounds of the invention or adapted for use with compounds of the invention or other nucleic acid dyes.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: June 20, 2017
    Assignee: Biotium, Inc.
    Inventors: Fei Mao, Chingying Cheung, Wai-Yee Leung, Sarah Lynn Windler, Lori M. Roberts
  • Patent number: 8409792
    Abstract: Silver halide photographic elements that are color intermediate motion picture films have at least one green sensitive silver halide emulsion that includes a green sensitizing dye that is a cyanine dye having two oxazole groups in the molecule, and another green sensitizing dye having either two imidazole groups in the molecule or one oxazole group and one thiazole group in the molecule. The molar ratio of the first green sensitizing dye to the second green sensitizing dye is from about 4:1 to about 0.3:1. The magenta dye image forming unit has at least one green sensitive silver halide emulsion layer that comprises predominantly cubic silver iodobromide grains having at least 90 mol % bromide and at least 1 mol % iodide, which grains have an average equivalent spherical diameter (ESD) of less than 0.25 ?m.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: April 2, 2013
    Assignee: East Kodak Company
    Inventor: Jeffrey C. Hansen
  • Patent number: 8226854
    Abstract: A photoelectric conversion device is provided and includes a photoelectric conversion layer containing a compound represented by the following formula (1). Formula (1): In the formula, Z1 represents an atomic group for forming a 5- or 6-membered nitrogen-containing heterocyclic ring; Za represents an atomic group for forming a 5- or 6-membered ring; R1 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group; L11 to L14 each represents a methine group which may have a substituent or may form a ring with another methine group; p1 represents 0 or 1; n1 represents an integer of 0 to 4 and when n1 is an integer of 2 or more, each L13 or L14 may be the same as or different from every other L13 or L14; M1 represents an ion for neutralizing the electric charge; and m1 represents a number necessary for neutralization of the electric charge; provided that a compound where Z1 is an atomic group forming a thiazoline nucleus or a thiazole nucleus is excluded.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: July 24, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Rui Shen, Kimiatsu Nomura, Hideyuki Suzuki
  • Patent number: 7998665
    Abstract: Silver halide photographic elements that are color intermediate motion picture films have at least one green sensitive silver halide emulsion that includes a green sensitizing dye that is a cyanine dye having two oxazole groups in the molecule, and another green sensitizing dye having either two imidazole groups in the molecule or one oxazole group and one thiazole group in the molecule. The molar ratio of the first green sensitizing dye to the second green sensitizing dye is from about 4:1 to about 0.3:1. The magenta dye image forming unit has at least one green sensitive silver halide emulsion layer that comprises predominantly cubic silver iodobromide grains having at least 90 mol % bromide and at least 1 mol % iodide, which grains have an average equivalent spherical diameter (ESD) of less than 0.25 ?m.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: August 16, 2011
    Assignee: Eastman Kodak Company
    Inventor: Jeffrey C. Hansen
  • Patent number: 7887998
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer and at least one hydrophilic colloid layer on a support, wherein silver halide in the silver halide emulsion layer has a silver bromide content of 40 to 90 mol %, and the silver halide emulsion layer is spectrally sensitized with a specific dye.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: February 15, 2011
    Assignee: Fujifilm Corporation
    Inventors: Mitsunori Hirano, Kunio Ishigaki
  • Patent number: 7732124
    Abstract: A color-image forming method in a silver halide color photographic light-sensitive material, having the steps of: performing exposure of the light-sensitive material cut into sheets; and subjecting the exposed light-sensitive material sheets to photographic processing, while conveying them with conveying rollers, with the sheet conveying speed being 40.0 to 100 mm/sec; wherein the light-sensitive material to be exposed contains any of: 1) a dye-forming coupler of formula (IA), 2) a compound of formula (I), and 3) 1.4 mg/m2 or more of a compound of formula (II); wherein R? and R? are a substituent; Z is a hydrogen atom, or a coupling split-off group; A is an alkyl group, M is a cation, and R is an atom or group having 100 or lower total molecular weight.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: June 8, 2010
    Assignee: Fujifilm Corporation
    Inventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
  • Patent number: 7632632
    Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0.005 per mg/m2. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: December 15, 2009
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, John W. Harder, Drake M. Michno, James H. Reynolds, Steven P. Szatynski
  • Patent number: 7629112
    Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed yellow colorant that is present in an amount to provide a status M blue density greater than 0.003 per mg/m2. This colorant provides minimum density at lower cost and can be incorporated with minimal or no organic solvents and thus enable a reduced organic load that may lead to improved film physical properties.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: December 8, 2009
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Drake M. Michno, James H. Reynolds, Steven P. Szatynski, John W. Harder
  • Patent number: 7598025
    Abstract: The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same. In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 ?m to 0.07 ?m; a film thickness of the silver halide emulsion layer is 4 ?m to 9 ?m; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: October 6, 2009
    Assignees: Konica Minolta Opto Inc., Dia Nippon Printing Co., Ltd.
    Inventors: Kenji Michiue, Tomonobu Moriya, Masashi Iwasaki, Toshihiro Kubota, Masachika Watanabe, Tsuyoshi Yamauchi, Tomoko Kumasawa, Kenji Ueda
  • Patent number: 7598026
    Abstract: An image-forming method comprising: employing a silver halide color photographic light-sensitive material, comprising, on a support, at least one silver halide emulsion layer containing a yellow dye-forming coupler, at least one silver halide emulsion layer containing a magenta dye-forming coupler, at least one silver halide emulsion layer containing a cyan dye-forming coupler, at least one color-mix preventing layer and at least one protective layer, wherein the said silver halide emulsion layer containing a yellow dye-forming coupler includes a blue-sensitive silver halide emulsion having a silver chloride content of 90 mole % or more and containing at least one specific blue-sensitive sensitizing dye; and exposing the said silver halide color photographic light-sensitive material to a blue semiconductor laser of a wavelength shorter by 30 nm to 60 nm than the wavelength at which the said blue-sensitive silver halide emulsion has the spectral sensitivity maximum.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: October 6, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Akito Yokozawa, Tatsuya Ishizaka, Katsuyuki Takada, Yoshiro Ochiai, Tetsuo Nakamura
  • Patent number: 7592133
    Abstract: A silver halide photographic material, includes transparent support having provided thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein the average equivalent-sphere diameter of the silver halide grains contained in each layers is 0.35 ?m or less, and an upper layer of the green-sensitive emulsion layer contains a fixed magenta dye, an upper layer or the red-sensitive emulsion layer contains a fixed cyan dye, and the green-sensitive layer contains a pyrazolotriazole, pyrazolopyrrole or 4-thio-pyrazolo-5-one coupler having a specific structure, and an image-recording method uses the photographic material.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: September 22, 2009
    Assignee: Fujifilm Corporation
    Inventors: Masaaki Miki, Hideyuki Shirai, Junichiro Hosokawa, Tetsuo Kikuchi, Yoichi Hosoya, Katsuyuki Nukui, Ryoji Nishimura, Kouichi Yokota
  • Patent number: 7476495
    Abstract: A silver halide photosensitive material comprising at least one blue-sensitive layer, at least one green-sensitive layer and at least one red-sensitive layer on a transparent support, wherein a peak wavelength of spectral sensitivity of at least one of the green-sensitive layer is in the range of ?10 nm or more and +10 nm or less in comparison with a peak wavelength of a green light source for exposure.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: January 13, 2009
    Assignee: Fujifilm Corporation
    Inventors: Tetsuo Kikuchi, Yoichi Hosoya, Masaaki Miki, Junichiro Hosokawa, Koichi Yokota, Ryoji Nishimura
  • Patent number: 7364841
    Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998-1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscicca and b* is used as the coordinate of the CIE 1976 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is ?5-5, and gradient (a*/b*) is 0.7-2.5.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 29, 2008
    Assignee: Konica Minolta & Medical Graphic, Inc.
    Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
  • Patent number: 7351523
    Abstract: The use of a red-sensitising trinuclear merocyanine dye and an osmium dopant according to formula (I): [Os(NZ)L5]r wherein Z is sulphur or oxygen, L is a ligand and r is 0, ?1, ?2 or ?3, in photographic silver halide emulsions for use in photographic materials, result in a reduction and/or prevention of speed gain in the emulsion over time without significant speed loss.
    Type: Grant
    Filed: November 14, 2004
    Date of Patent: April 1, 2008
    Assignee: Eastman Kodak Company
    Inventors: Nicholas E. Grzeskowiak, Colin J. Gray
  • Patent number: 7303864
    Abstract: The invention provides a black and white photothermographic material comprising an image forming layer containing on at least one side of a support at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein: the non-photosensitive organic silver salt comprises at least one compound selected from a silver salt of an azole compound or a silver salt of a mercapto compound; and the photothermographic material further comprises, a compound that can be one-electron-oxidized to provide a one-electron oxidation product which releases one or more electrons, and an adsorptive redox compound having a group adsorbable to the silver halide and a reducing group in the molecule. The invention provides a black and white photothermographic material having high image quality and an excellent storability, and an image forming method.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: December 4, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Tomoyuki Ohzeki
  • Patent number: 7303851
    Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: December 4, 2007
    Assignee: Fujifilm Corporation
    Inventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
  • Patent number: 7291449
    Abstract: 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: Grant
    Filed: August 17, 2001
    Date of Patent: November 6, 2007
    Assignee: Fujifilm Corporation
    Inventors: Tetsuo Nakamura, Takanori Hioki, Katsuhisa Ohzeki, Naoyuki Hanaki
  • Patent number: 7244550
    Abstract: A silver halide color photographic photosensitive material having, on a support, at least one layer of a blue sensitive emulsion layer unit containing a yellow color forming coupler, a green sensitive emulsion layer unit containing a magenta color forming coupler, and a red sensitive emulsion layer unit containing a cyan color forming coupler, wherein 70% or more of the projection area of the entire silver halide grains has at least one layer of a silver halide photographic emulsion layer containing silver halide grains satisfying the following (a) to (c), and (1) the photosensitive material contains at least one inter-image effect providing layer, or (2) the photosensitive material contains a compound represented by the following Formula (I): (a) the material comprises a tabular silver halide host grain with an aspect ratio of 5 or more having two principal surfaces parallel with each other and a protrusion portion of silver halide epitaxially joined onto the surface of the tabular silver halide host grain,
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: July 17, 2007
    Assignee: Fujifilm Corporation
    Inventors: Hiroshi Fukuzawa, Yutaka Maeno, Kazumi Nii
  • Patent number: 7238467
    Abstract: A silver halide emulsion comprising silver halide grains covered with two dye layers in combination. The two dye layers comprises an inner dye layer adjoining to the silver halide grain, and containing at least one sensitizing dye capable of spectrally sensitizing silver halide, and an outer dye layer adjoining to the inner dye layer, and containing at least two dyes. The light absorption energy of the outer dye layer is equal to or higher than that of the inner dye layer, an energy-releasing wavelength of the outer dye layer overlaps with an energy-absorbing wavelength of the inner dye layer, the sensitizing dyes constituting the inner dye layer include an anion and/or betaine dyes, the dyes constituting the outer dye layer include an anion and cation dyes, and the anion dye is more than the cation dye in terms of an addition amount and/or an adsorption amount.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: July 3, 2007
    Assignee: Fujifilm Corporation
    Inventors: Tadashi Ikeda, Yasushi Tanabe, Hiroshi Kawakami, Takeshi Suzumoto
  • Patent number: 7220536
    Abstract: A photothermographic imaging material comprising a support having thereon, (a) a photosensitive layer containing an organic silver salt, photosensitive silver halide grains, a reducing agent and a binder, (b) a light-insensitive layer, and (c) a protective layer, wherein a weight reducing value from 25° C. to 100° C. by a heat drying weight measurement of the photographic imaging material is not more than 0.4% based on a weight value at 25° C.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: May 22, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Koji Kuwano, Takayuki Sasaki, Kazuhiro Kido
  • Patent number: 7189502
    Abstract: A radiographic material containing tabular silver halide grains also includes an amido compound as an antifoggant precursor that can slowly release an antifoggant over time. These compounds are present in reactive association with the silver halide in tabular silver halide emulsion layers, and are present in an amount of at least 0.5 mmol/mol of silver. The radiographic materials are protected from fog during storage particularly in high temperature environments.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: March 13, 2007
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, George J. Burgmaier, Steven P. Szatynski, Stephen A. Hershey
  • Patent number: 7179586
    Abstract: A high-sensitivity silver halide photographic light-sensitive material is provided, which is a silver halide photographic light-sensitive material, in which a dye chromophore is adsorbed in multiple layers on the surface of a silver halide grain and at least one of the dye chromophore-containing compounds satisfies: a specific condition relating to the aggregation property, hydrophilicity/hydrophobicity or J-aggregation property; or a specific structure.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: February 20, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takanori Hioki, Katsumi Kobayashi, Ryo Suzuki, Yasutomo Kawanishi, Takeshi Suzumoto
  • Patent number: 7172856
    Abstract: 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: Grant
    Filed: July 22, 2002
    Date of Patent: February 6, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takanori Hioki, Hiroo Takizawa, Katsuhiro Yamashita
  • Patent number: 7157214
    Abstract: High-speed aqueous-based black-and-white photothermographic materials are imageable in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. They can have one or more thermally developable imaging layers on either or both sides of the support and can be imaged with or without a phosphor intensifying screen in an imaging assembly. The photothermographic emulsions and materials have a net Dmin less than 0.25, and require less than 1 erg/cm2 to achieve a density of 1.00 above net Dmin. The imaging layers include hydrophilic binders or water-dispersible latex polymer binders and chemically and spectrally sensitized photosensitive silver halide grains.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: January 2, 2007
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Doreen C. Lynch
  • Patent number: 7153644
    Abstract: A silver halide color photosensitive material, which has: at least each one layer of yellow-, magenta- and cyan-color-forming photosensitive silver halide emulsion layers on a reflective support, and at least one non-light-sensitive non-color-forming hydrophilic colloidal layer; wherein at least one of the photosensitive silver halide emulsion layers contains a silver halide emulsion containing 90 mol % or more of silver chloride, and a compound having a repetitive unit of formula (I) is contained: wherein R1 is —OR, —SR or —N—R(—R?), where R and R? are a hydrogen atom, or an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group, or R and R? may form a saturated carbon ring or a heterocycle; R2 and R3 are a hydrogen atom or an alkyl group; Y1 and Y2 are a polymethylene, arylene or cycloalkylene group; Z is —O—, —SO2— or —CH2—; and m is 0 or 1.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: December 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akito Yokozawa, Tetsuo Nakamura, Katsuyuki Takada
  • Patent number: 7129031
    Abstract: A green-sensitized black-and-white silver halide negative working photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains, further comprising in said emulsion layer or in a layer adjacent thereto, a heteroatomic sulfinic acid compound, a disulfide compound or a combination thereof, wherein each of said compounds has a solubilizing group having a pKa-value of 10 or less.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: October 31, 2006
    Assignee: Agfa-Gevaert
    Inventors: Johan Loccufier, Dirk Bollen
  • Patent number: 7122299
    Abstract: A silver halide photographic photosensitive material, containing at least one residual-color-reducing agent having at least one aromatic ring or aromatic heterocycle in its molecule; a processing method thereof; and an image-forming method.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: October 17, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Takanori Hioki, Naoto Matsuda
  • Patent number: 7115358
    Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 1) the non-photosensitive organic silver salt includes at least one compound selected from the group consisting of a silver salt of an azole compound and a silver salt of a mercapto compound, and 2) the photosensitive silver halide has a spectral sensitizing dye in the form of a multilayer adsorbed on its surface. According to the invention, an improved black and white photothermographic material and image forming method realizing high sensitivity, favorable gradation, and less dependence on developing process conditions are provided.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: October 3, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Funakubo, Takeshi Suzumoto
  • Patent number: 7112398
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 26, 2006
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
  • Patent number: 7087365
    Abstract: A method for forming images on a silver halide color photographic photosensitive material having a substrate and photographic structural layers thereon, including, at least three silver halide color photosensitive layers having different photosensitive regions, respectively, and at least one non-photosensitive hydrophilic colloid layer is disclosed. At least one of the photosensitive layers contains 90 mol % or more of silver chloride. Shortly after the silver halide color photographic photosensitive material has been scan-exposed with laser beams, the material is rapid-processed with a low replenishing amount.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: August 8, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Ohshima, Akito Yokozawa, Naoya Shibata
  • Patent number: 7063941
    Abstract: A photothermographic emulsion is prepared by chemically sensitizing silver halide grains by oxidative decomposition of an organic sulfur-containing compound on or around the silver halide grains. This procedure uses a unique sequence of steps and provides increased photographic speed and manufacturing reproducibility. The resulting photothermographic emulsion can be used to prepare photothermographic materials.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: June 20, 2006
    Assignee: Eastman Kodak Company
    Inventors: Lilia P. Burleva, Mark C. Skinner, Kumars Sakizadeh, Sharon M. Simpson
  • Patent number: 7052827
    Abstract: A silver halide photographic material including at least one methine dye represented by the following general formula (I) and at least one coupler represented by the following general formula (XX): wherein X1 and X2 each represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, or a nitrogen atom; Y1 represents a furan, pyrrole or thiophene ring which may be condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; Y2 represents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle, which may be further condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; a bond between two carbon atoms by which Y1 and Y2 are each condensed with the carbon ring or the heterocycle may be a single bond or a double bond; R1 and R2 each represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L1, L2 and L3 each represents a methine group; n1 represents 0 o
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: May 30, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuo Nakamura
  • Patent number: 7029837
    Abstract: This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image forming unit comprised of at least one red sensitive silver halide emulsion, a magenta dye image forming unit comprised of at least one green sensitive silver halide emulsion, and a yellow dye image forming unit comprised of at least one blue sensitive silver halide emulsion; wherein the at least one green sensitive silver halide emulsion comprises two absorptance peaks, the first peak being between 515 and 540 nm (short wavelength peak) and the second peak being between 565 and 590 nm, (long wavelength peak) and wherein (a) the ratio of the absorptance peak value of the short wavelength peak to the absorptance peak value of the long wavelength peak is from 0.65 to 1.55; (b) the absorptance minimum between the two absorptance peaks is between 530 and 560 nm; (c) the ratio of the absorptance value at the absorptance minimum to that of the smaller absorptance peak is 0.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: April 18, 2006
    Assignee: Eastman Kodak Company
    Inventors: David E. Fenton, Lois A. Buitano, Steven G. Link, Sharon G. Johnston, David B. Moorehouse
  • Patent number: 7026108
    Abstract: A method has been disclosed for preparing a co-precipitated microcrystalline dye dispersion, the absorption spectrum of which exceeds the summoned spectra of individually dispersed dyes, which comprises, as consecutive preparation steps: adding to one vessel, an amount of at least one pentamethine oxonol-type barbituric acid filter dye having ionizable sites in its molecular structure; adding thereto an aqueous alkaline solution in an amount sufficient to completely dissolve the said filter dye while stirring the solution thus formed; adding in another vessel, to an amount of at least one pyrrole type filter dye, an amount of water, followed by adding of an aqueous alkaline solution and a surfactant; followed, after having completely dissolved (under stirring conditions) the said pyrrole type filter dye, by adding to the solution thus formed in the other vessel, the solution formed in the one vessel; adding an aqueous acidic solution up to a pH of less than 3.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: April 11, 2006
    Assignee: AGFA-Gevaert
    Inventors: Kris Viaene, Jan Gilleir, Geert De Roover
  • Patent number: 7022470
    Abstract: A photothermographic imaging material having high sensitivity and superior temporal storage stability. The photothermographic imaging material includes silver halide on at least one side of a support, and includes at least one kind of the compounds represented by the following general formula (1).
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 4, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Kiyoshi Fukusaka, Kazuaki Nakamura, Ryouhei Iwamoto, Norio Miura, Nobuaki Kagawa, Soc Man Ho Kimura
  • Patent number: 6994953
    Abstract: A silver halide photosensitive material comprises a light-sensitive silver halide emulsion layer on a support. The photosensitive material has a layer comprising an emulsified dispersion containing a surfactant represented by formula (I), and an emulsion containing tabular silver halide grains having an average aspect ratio of 8 or greater, and at least one sensitizing dye. (R1-LnJA)m??General formula (I) wherein A represents an acid group or a metal salt thereof, R1 represents an aliphatic group containing a linear aliphatic group having 6 or more carbon atoms as a partial structure thereof and having the total number of carbon atoms of 17 or more, L represents a bivalent group, J represents a linking group of n+m valence, n is an integer of 1 to 6, and m is an integer of 1 to 3. The molecular weight of surfactant of the formula (I) divided by m is 430 or greater.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: February 7, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Matsuda, Yasushi Miyamoto, Tomokazu Yasuda
  • Patent number: 6979529
    Abstract: 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: Grant
    Filed: April 26, 2001
    Date of Patent: December 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Katoh, Hiroo Takizawa
  • Patent number: 6974663
    Abstract: A photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of an intercalation composition comprising a layered host material having molecules of the photographically useful compound inserted as guest molecules between the layers of the host material. The invention provide novels materials and a method of incorporating active chemistry compounds such as developers or development inhibitors directly into a photographic imaging element with improved stability and keeping response versus known methods for incorporating active chemistry compounds.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: December 13, 2005
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Krishnamohan Sharma, Kenneth J. Lushington
  • Patent number: 6949332
    Abstract: A silver halide emulsion containing water, dispersion medium comprising modified gelatin whose amino group is chemically modified, and silver halide grains comprising spectrally sensitized silver halide grains each having a multilayer adsorption of dye chromophores on the surface thereof. A method of preparing the silver halide emulsion. A silver halide photosensitive material contains the silver halide emulsion in a light-sensitive silver halide emulsion layer thereof.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: September 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Kawakami, Mikio Ihama, Takeshi Suzumoto
  • Patent number: 6924091
    Abstract: A silver halide photographic lightsensitive material comprising a support having thereon at least one lightsensitive silver halide emulsion layer, wherein the lightsensitive material contains at least one compound represented by general formula (I) and at least one photographically useful group-releasing compound represented by general formula (II) or (III) that is capable of forming a compound having substantially no contribution to a dye after its coupling with an oxidized form of a developing agent: (X)k—(L)m—(A—B)n??(I) COUP1—D1??(II) COUP2—C—E—D2??(III) The definitions of the substituents are set forth in the specification.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: August 2, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Hosoya, Kiyoshi Morimoto, Tadashi Inaba
  • Patent number: 6908730
    Abstract: This invention relates to a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith: (a) a first dye (Dye 1) that is a cyanine dye capable of spectrally sensitizing a silver halide emulsion and that has at least one anionic substituent; and (b) a second dye (Dye 2) that is not a cyanine dye and that has at least one cationic substituent. Dye 2 has a log P, excluding any counterion, of less than 4.00 and greater than 1.00 or Dye 2 is represented by a dye of formula II as described herein.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: June 21, 2005
    Assignee: Eastman Kodak Company
    Inventors: Richard L. Parton, Thomas L. Penner, David R. Foster, Stephen A. Hershey
  • Patent number: 6902878
    Abstract: A silver halide photographic emulsion is disclosed, comprising silver chloroiodide grains or silver chloroiodobromide grains, having 90 mol % or more of a silver chloride content, wherein the silver chloroiodide grains or silver chloroiodobromide grains have a layer having a silver iodide content of decreasing in the depth direction from the grain surface.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Satoshi Aiba, Osamu Yonekura
  • Patent number: 6852478
    Abstract: A silver halide color photographic light-sensitive material with a magenta emulsion layer containing a pyrazolotriazole magenta dye-forming coupler and containing an emulsion whose silver chloride content is 98 mol % or more, with a light-insensitive hydrophilic colloidal layer containing a solid fine-particle dispersion of a dye. The magenta emulsion layer is a light-sensitive silver halide emulsion layer most apart from the light-insensitive hydrophilic colloidal layer among all the light-sensitive silver halide emulsion layers. A silver halide color photographic light-sensitive material for cinema, in which light-sensitive silver halide particles have a silver chloride content of 95 mol % or more, a total coated amount of silver is 1.7 g/m2 or less, a thickness of the film on the support on the side of layers containing the light-sensitive silver halide is 12.0 ?m or less, and the swelling rate to water is 200% or less.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 8, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidekazu Sakai, Tatsuya Ishizaka, Katsuyuki Takada
  • Patent number: 6844145
    Abstract: High-speed black-and-white photothermographic materials can be imaged in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. They can have one or more thermally developable imaging layers on either or both sides of the support and can be imaged with or without a phosphor intensifying screen in an imaging assembly. The photothermographic emulsions and materials have a net Dmin less than 0.25, and require less than 1 erg/cm2 to achieve a density of 1.00 above net Dmin.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: January 18, 2005
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Doreen C. Lynch
  • Patent number: 6838231
    Abstract: A process for producing a spectrally sensitized silver halide photographic emulsion having high sensitivity. A process for producing a silver halide photographic emulsion comprising as a sensitizing dye at least one connection dye having two or more chromophores connected through a covalent bond, the process comprising adding said connection dye to a silver halide photographic emulsion and allowing at least one chromophore out of a plurality of chromophores in the molecule of the connection dye to change in the adsorption strength to a silver halide grain; and a process for producing a silver halide photographic emulsion comprising a silver halide grain having adsorbed on the surface thereof a sensitizing dye in multiple layers, the process comprising adding one or a plural of sensitizing dye(s) to said silver halide emulsion and allowing at least one sensitizing dye out of added sensitizing dyes to change in the adsorption strength to a silver halide grain.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 4, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Kobayashi, Takeshi Suzumoto, Takanori Hioki
  • Patent number: 6828087
    Abstract: A silver halide photographic material comprising at least one methine dye of formula (I) and at least one coupler of formula (X): wherein X1 and X2 each represents O, S, Se, Te, N or C; Y1 represents a furan, pyrrole or thiophene ring which may be condensed and substituted with the specific ring; Y2 represents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle; R1 and R2 each represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L1, L2 and L3 each represents a methine group; n1 represents 0 or 1; M1 represents a counter ion; and m1 represents a number of 0 or more necessary for neutralizing a charge in a molecule; wherein Z1 and Z2 each represents —C(Q3)═ or —N═; Q1 and Q3 each represents a hydrogen atom or a monovalent substituent group; Q2 represents a hydrogen atom or a coupling release group.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuo Nakamura
  • Patent number: 6828088
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, wherein 40 mol % or more of silver halide contained in the silver halide emulsion layer is silver bromide and the silver halide contains 1×10−6 mole or more per mole of silver of a metal complex containing one or more cyanide ligands, and the silver halide photographic light-sensitive material has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 4.0 or more for the optical density range of 0.1-1.5. There is provided a silver halide photographic light-sensitive material showing high contrast and high sensitivity.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tokuju Oikawa
  • Patent number: 6824967
    Abstract: A method of preparing a dye solution having a high concentration and high stability, wherein a counter ion-free dye and a base having a pKa value of from 6.6 to 9.0 are dissolved in a solvent having a relative dielectric constant of at least 10 at 20° C., and a silver halide emulsion and a silver halide photographic material which are reduced in fogging by the use of the dye solution prepared in accordance with the aforesaid method.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: November 30, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuo Nakamura, Katsuyuki Takada