S, Se, Or Te Or Compound Thereof Patents (Class 430/603)
  • Patent number: 7741017
    Abstract: The present invention relates to a silver halide color photographic light-sensitive material wherein at least one of light-sensitive silver halide emulsion layers includes a silver halide emulsion having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol % and/or a silver bromide content of 0.05 mol % to 4.00 mol % and further at least one compound represented by the following formula (I): X-(L)n-Y??Formula (I) wherein X represents a group adsorptive to a silver halide, L represents a divalent connecting group comprising one of an atom and an atomic group including at least one of a carbon atom, a nitrogen atom, a sulfur atom and an oxygen atom, Y denotes a reducible group and n denotes an integer of 0 or 1.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: June 22, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Atsushi Matsunaga, Tadashi Inaba, Shinichi Ichikawa
  • 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: 7531298
    Abstract: A silver halide color photosensitive material, wherein the total coating amount of silver of the photosensitive silver halide is 6.0 g/m2 or less in terms of metal silver, and the photosensitivity is the ISO speed of 400 or more, the silver halide color photosensitive material further comprising at least one compound selected from a group consisting of the following type 1 and type 2: (Type 1) Compound which undergoes a one-electron oxidation so as to form a one-electron oxidation product capable of, through subsequent bond cleavage reaction, releasing one or more electrons, (Type 2) Compound which undergoes a one-electron oxidation so as to form a one-electron oxidation product capable of, after subsequent bond formation reaction, releasing one or more electrons.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: May 12, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Atsushi Matsunaga, Makoto Kikuchi, Kiyoshi Morimoto, Masahiko Taniguchi, Naoyuki Hanaki
  • Patent number: 7527922
    Abstract: A silver halide color photographic light-sensitive material having, on a support, at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, characterized in that at least one of the silver halide emulsion layers contains a silver halide emulsion having a silver chloride content of 90 mole % or above, the silver halide emulsion contains at least one kind of selenium compound, and the silver halide emulsion layer containing the silver halide emulsion has a characteristic curve satisfying the following relation (1); 2.0??H/?L?0.5??Relation (1) wherein ? represents a gradient of the characteristic curve, ?H represents a gradient in the case of 1×10?6-second exposure and ?L represents a gradient in the case of 100-second exposure.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: May 5, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Shigeru Shibayama, Toshihiro Kariya, Akito Yokozawa, Kenji Naoi, Katsuhisa Ohzeki, Hiroyuki Suzuki
  • Patent number: 7465534
    Abstract: A silver halide emulsion containing silver halide grains with a silver chloride content of at least 95 mole %, being sensitized with selenium and gold, and further containing at least two compounds each having a function of oxidizing metallic silver clusters; a silver halide photographic material containing the same; and a silver halide photographic material having red-, green, and blue-sensitive silver halide emulsion layers, wherein one of the emulsion layers contains a silver halide emulsion with a silver chloride content of at least 95 mole %, and the silver halide emulsion contains a selenium compound and a metal complex of formula (D1); [MD1XD1nLD1(6-n)]m??formula (D1) wherein MD1 represents Cr, Mo, Re, Fe, Ru, Os, Co, Rh, Pd, or Pt; XD1 represents a halogen ion; LD1 represents a ligand other than XD1; n represents 3, 4, 5, or 6; and m represents 4-, 3-, 2-, 1-, 0 or 1+.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: December 16, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Katsuhisa Ohzeki, Hiroyuki Suzuki, Toshihiro Kariya
  • Patent number: 7410745
    Abstract: The invention provides a photothermographic material including: a support and an image-forming layer including a non-photosensitive silver salt, a photosensitive silver halide, a binder, and a reduction agent disposed on the support, wherein a silver iodide content in the photosensitive silver halide is in a range from 40 mol % to 100 mol %; and an average sphere-equivalent diameter of the photosensitive silver halide is in a range from 0.3 ?m to 5.0 ?m. The photothermographic material may further include a silver iodide complex forming agent as a compound which substantially reduces visible light absorption caused by the photosensitive silver halide after thermal development. At least 50%, in terms of a projected area, of the photosensitive silver halide may be occupied by tabular silver halide grains having an aspect ratio of from 2 to 50 and being deposited with a silver salt in an epitaxial growth manner.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: August 12, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Tomoyuki Ohzeki, Eiichi Okutsu
  • Patent number: 7407740
    Abstract: A silver halide color photographic light-sensitive material, having, on a support, at least one silver halide emulsion layer containing a cyan dye forming coupler, at least one silver halide emulsion layer containing a magenta dye forming coupler, and at least one silver halide emulsion layer containing a yellow dye forming coupler, wherein at least one layer of said at least one silver halide emulsion layer containing a cyan dye forming coupler contains high-silver chloride emulsion grains, which are selenium-sensitized and have a silver chloride content of 90 mol % or more, and contains at least one coupler of formula (I): wherein R? and R? each independently are a substituent; and Z is a hydrogen atom, or a group capable of being split-off upon coupling reaction with an oxidized aromatic primary amine color-developing agent.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 5, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Toshihiro Kariya, Hiroyuki Suzuki
  • Patent number: 7393626
    Abstract: The invention provides a photothermographic material including, on a same surface of a substrate, photosensitive silver halide grains, a non-photosensitive organic silver salt, a reducing agent and a binder, in which the photosensitive silver halide grains include iridium and a metal of groups 3 to 10 of the periodic table other than iridium, and 90% or more of the total iridium amount within the grain are contained in a core of 50% or less of the grain.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: July 1, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Seiichi Yamamoto
  • 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: 7335466
    Abstract: A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye. A percentage of the photosensitive silver halide grains having a mean particle size of 0.01 or more ?m and 0.04 ?m or less is 5% or more by mass and 50% or less by mass of total photosensitive silver halide grains by conversion into a silver amount.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 26, 2008
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Patent number: 7306900
    Abstract: A silver halide color photosensitive material comprising at least one layer containing at least one compound selected from a group consisting of the following type 1 and type 2, and at least one layer containing at least one fluorine compound represented by the following general formula (A): (Type 1) Compound which undergoes a one-electron oxidation so as to form a one-electron oxidation product capable of, through subsequent bond cleavage reaction, releasing one or more electrons; (Type 2) Compound which undergoes a one-electron oxidation so as to form a one-electron oxidation product capable of, after subsequent bond formation reaction, releasing one or more electrons; Rf?X-M:??General formula (A) wherein Rf represents an alkyl group having 1 to 6 carbons which is substituted with at least one fluorine atom, X represents a divalent coupling group or a single bond, and M represents an anionic group, a cationic group or a betaine group.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: December 11, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Koichi Yokota
  • Patent number: 7303863
    Abstract: A silver halide emulsion, which is chemically sensitized by a compound of formula (1): wherein Ch represents a sulfur, selenium, or tellurium atom; X1 represents NR1 or N+(R2)R3Y?; R1 represents a hydrogen atom or a substituent; R2 and R3 each represent an alkyl group or another substituent; Y? represents an anionic ion; X2 represents OR4, N(R5)R6, or another substituent; R4 to R6 each represent a hydrogen atom or a substituent; and E is a group selected from groups represented by formula (2) to (5): wherein, in formulas (2) to (5), Z represents a hydrogen atom or a substituent; A1 and A2 each represent an oxygen atom, etc.; and R10 to R16 each represent a hydrogen atom or a substituent; W represents a substituent; n is an integer from 0 to 4; L represents a divalent linking group; and EWG represents an electron withdrawing group.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: December 4, 2007
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Suzuki, Toshihiro Kariya
  • Patent number: 7262002
    Abstract: A silver halide emulsion containing silver halide grains with a silver chloride content of at least 95 mole %, being sensitized with selenium and gold, and further containing at least two compounds each having a function of oxidizing metallic silver clusters; a silver halide photographic material containing the same; and a silver halide photographic material having red-, green, and blue-sensitive silver halide emulsion layers, wherein one of the emulsion layers contains a silver halide emulsion with a silver chloride content of at least 95 mole %, and the silver halide emulsion contains a selenium compound and a metal complex of formula (D1); [MD1XD1nLD1(6-n)]m ??formula (D1) wherein MD1 represents Cr, Mo, Re, Fe, Ru, Os, Co, Rh, Pd, or Pt; XD1 represents a halogen ion; LD1 represents a ligand other than XD1; n represents 3, 4, 5, or 6; and m represents 4?, 3?, 2?, 1?, 0, or 1+.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: August 28, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuhisa Ohzeki, Hiroyuki Suzuki, Toshihiro Kariya
  • Patent number: 7258969
    Abstract: A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities. Also, a method of preparing the emulsion in a stable manner, and a silver halide color photographic photosensitive material and an image forming method that use the emulsion. The emulsion includes a mesoionic compound having a thiolate structure or a protonated thiolate structure, and the emulsion is sensitized by an Au (III) compound. The emulsion preferably contains an oxidatively dimerized form of a mesoionic compound having a thiolate structure, and a silver chloride content of at least 90 mol %.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: August 21, 2007
    Assignee: Fujifilm Corporation
    Inventors: Hirotomo Sasaki, Hideki Maeta, Naoto Ohshima
  • Patent number: 7241564
    Abstract: A silver halide-holographic sensitive material is provided and has a support and at least one photosensitive emulsion layer, with the photosensitive emulsion layer containing silver halide particles whose number average projected-area diameter is from 10 nm to 80 nm.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: July 10, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Mikio Ihama
  • Patent number: 7229749
    Abstract: A silver halide photographic emulsion, wherein 70% or more of the total projected area of silver halide grains is occupied by silver halide grains satisfying the following requirements (a) to (d). (a) It is composed of a tabular silver halide host grain with an aspect ratio of 12 or more having two mutually parallel principal planes and a silver halide protrusion portion bonded by epitaxial junction on the surface of the host grain. (b) The silver bromide content rates of the host grain and the protrusion portion both are 70 mol % or more. (c) When the average silver iodide content rate of all grains is I mol %, the average silver iodide content rate of the region of 8%, based on the silver amount of the host grain, of the outer shell of the host grain is (I+12) mol % or less.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 12, 2007
    Assignee: Fujifilm Corporation
    Inventor: Yasushi Miyamoto
  • Patent number: 7220537
    Abstract: This invention provides a silver halide emulsion, a silver halide photographic material and an image forming method, which is excellent in high sensitivity, good gradation, coating composition store stability and latent image store stability regardless exposing method, particularly excellent latent image store stability at high intensity and shot period exposure of digital exposure, and by which a high quality print is obtained. The silver halide emulsion contains silver halide grains having silver chloride content of at least 90 mol %, silver iodide content of 0-2.0 mol %, and silver bromide content of 0.02-5.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: May 22, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
  • Patent number: 7211373
    Abstract: A photothermographic material comprising a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for a silver ion and a binder on one surface of a support, wherein a silver behenate-content of the non-photosensitive organic silver salt is 40 to 70 mol %, and the photothermographic material comprises a compound that can be one-electron-oxidized to provide a one-electron oxidation product, which further releases at least 1 electron, one of during and after a subsequent reaction.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: May 1, 2007
    Assignee: Fujifilm Corporation
    Inventors: Tomoyuki Ohzeki, Kohzaburoh Yamada
  • Patent number: 7189501
    Abstract: A silver halide color photographic photosensitive material that has, on a support, at least one yellow color-forming photosensitive silver halide emulsion layer, at least one magenta color-forming photosensitive silver halide emulsion layer, and at least one cyan color-forming photosensitive silver halide emulsion layer, wherein at least one specific yellow or magenta dye-forming coupler and at least one compound represented by formula (Ph) are contained in the same layer: wherein Rb1 represents a specific functional group; and Rb2 to Rb5 each independently represent a hydrogen or halogen atom, or a specific functional group.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: March 13, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiyuki Makuta, Hiroyuki Yoneyama, Nobuo Seto, Kiyoshi Takeuchi
  • 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: 7186500
    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: October 9, 2003
    Date of Patent: March 6, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Hosoya, Kiyoshi Morimoto, Tadashi Inaba
  • 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: 7175977
    Abstract: A black and white monosheet thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one five-membered heterocyclic ring compound selected from the group consisting of optionally substituted, optionally annelated 1-thia-2,3-diazole compounds; optionally substituted, optionally annelated 1-thia-2,5-diazole compounds; optionally substituted 1-thia-2,4-diazole compounds; optionally substituted 1-thia-3,4-diazole compounds; optionally substituted thiatriazole compounds; optionally substituted, optionally annelated 1-seleno-2,3-diazole compounds; optionally substituted, optionally annelated 1-seleno-2,5-diazole compounds; optionally substituted 1-seleno-2,4-diazole compounds; optionally substituted 1-seleno-3,4-diazole compounds; and optionally substituted selenotriazole compounds, with the provi
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: February 13, 2007
    Assignee: Agfa-Gevaert
    Inventors: Ingrid Geuens, Johan Loccufier
  • 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: 7163785
    Abstract: A silver halide photographic material, including a support having thereon a silver halide emulsion layer, the silver halide emulsion layer containing silver halide particles having a silver chloride content of more than or equal to 90 mol %, wherein a compound represented by Formula (S) is contained in the interior and on a surface of the silver halide particles and in a binder of the silver halide emulsion layer, and the silver halide particles have more than two silver halide phases therein having different concentration of the compound represented by Formula (S):
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: January 16, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Koichiro Kuroda
  • Patent number: 7163782
    Abstract: A photothermographic imaging material including an organic silver salt, a binder, a reducing agent, coupler and a main developing agent which forms coloring images by reacting with the coupler, those which are on a support wherein the reducing agent comprises a compound represented by the following Formula (1), the coupler is a compound represented by the following Formula (CP1) and sum of maximum density of colorant images at maximum absorption wavelength formed by the coupler and the main developing agent is 0.01 or more and 0.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: January 16, 2007
    Assignee: Konica Minolta Holdings, Inc.
    Inventor: Narito Goto
  • Patent number: 7157219
    Abstract: Photothermographic materials are designed with increased photospeed by chemical sensitizing the photosensitive silver halide grains with a combination of compounds. A first chemical sensitizer is a specific gold(III)-containing compound and a second chemical sensitizer is a sulfur-containing compound that is a diphenylphosphine sulfide. The molar ratio of the gold(III)-containing compound to the sulfur-containing compound is at least 1:1.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: January 2, 2007
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, Lilia P. Burleva, Kumars Sakizadeh
  • Patent number: 7157216
    Abstract: A silver halide emulsion is disclosed, comprising silver halide grains, wherein at least 50% by number of the silver halide grains is accounted for by cubic grains having a chloride content of not less than 90 mol %, an iodide content of from 0 to 2 mol % and a bromide content of from 0.1 to 10 mol % and containing dislocation lines in the edge region or the corner region of the grains.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 2, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Katsuya Yabuuchi, Rieko Ren
  • Patent number: 7153643
    Abstract: The present invention provides a silver halide color photographic photosensitive material including a substrate, and photographic constituent layers having at least one each of an yellow color-developing blue light-sensitive silver halide emulsion layer, a magenta color-developing green light-sensitive silver halide emulsion layer, a cyan color-developing red light-sensitive silver halide emulsion layer and a non-photosensitive hydrophilic colloid layer, wherein the at least one yellow color-developing blue light-sensitive silver halide emulsion layer includes a silver halide emulsion having a sphere-corresponding diameter of 0.7 ?m or less, and a silver chloride content of 90 mol % or higher, which silver halide emulsion has been subjected to selenium and gold sensitizations, and the total gelatin amount in the photographic constituent layers is from 3 to 6 g/m2, or the total silver coating amount in the photographic constituent layers is from 0.2 to 0.5 g/m2, and an image-forming method using the same.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: December 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Naoto Ohshima
  • Patent number: 7150963
    Abstract: A silver halide emulsion containing a compound represented by the following formula (1) or (2): wherein R1 represents an OH group, an SH group, or an —NR2R3 group in which R2 and R3 each independently represent a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkylsulfonyl group, or an arylsulfonyl group; L represents an alkenylene group, an arylene group, an —N?N— group, a divalent aromatic heterocyclic group, or a —C(R4)?N— group in which R4 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; n represents 0 or 1; X and Y each independently represent a nitrogen atom or a —CR5— group in which R5 represents a hydrogen atom or a substituent bondable to the carbon atom; Z represents an atomic group in the 5- to 7-membered ring; and M represents a hydrogen atom, a metal ion, or a quaternary ammonium ion.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: December 19, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuyuki Watanabe, Hideo Hanawa, Takeshi Funakubo
  • Patent number: 7138222
    Abstract: The present invention provides a silver halide color photographic photosensitive material that includes coupler-containing sensitive emulsion layer units on a support. Each of the photosensitive emulsion layer units are constituted of at least two photosensitive emulsion layers having sensitivities which are different from each other. An emulsion layer of the highest sensitivity among the at least two photosensitive emulsion layers contains at least one silver halide emulsion in which tabular silver halide grains with an average aspect ratio of 3 or more substantially including dislocation lines account for 50% or more of the total projected areas. Photosensitive emulsion layers other than the emulsion layer of the highest sensitivity consist of a silver halide emulsion containing silver halide grains that account for 70% or more of the total projected areas and include host grains that satisfy a specific aspect ratio condition and epitaxially joined protrusions.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: November 21, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuyuki Haraguchi, Yasushi Miyamoto
  • 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: 7115359
    Abstract: A photothermographic material having a support provided on at least one side of the support light-sensitive silver halide particles, an organic silver salt and a reducing agent, as well as a leuco dye of a specific structure and a compound of a specific structure.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: October 3, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Yasushi Usagawa, Takeshi Habu
  • Patent number: 7105286
    Abstract: The present invention relates to a silver halide photographic material comprising a paper support having resin layers coated on both sides of a base paper, and in particular, to a silver halide photographic material exhibiting superior glossiness and improved sharpness, long-term stability, fingerprint resistance and pressure resistance. The silver halide photographic material comprising on one side of the paper support having resin coat layers on both sides of a base paper, one or more light-sensitive layers and one or more light-insensitive layers, wherein after the photographic material of an L-size (having a length of 89 mm in a machine direction of the base paper and a length of 127 mm vertical to the machine direction) is processed, the photographic material exhibits an image clarity (C-value) of 20% to 60% which is determined using a 1.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: September 12, 2006
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventor: Takesi Nakamura
  • Patent number: 7105287
    Abstract: A silver halide emulsion is disclose, containing silver halide grains, in which at least 50% by number of the silver halide grains is accounted for by (1) cubic grains (2) having a chloride content of not less than 90 mol %, (3) an iodide content of from 0 to 2 mol % and (4) a bromide content of from 0.1 to 10 mol %, and (5) containing dislocation lines in the peripheral region and (6) having rounded corners.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: September 12, 2006
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Katsuya Yabuuchi, Rieko Ren
  • Patent number: 7087366
    Abstract: A photothermographic emulsion is prepared by chemically sensitizing silver halide grains formed by oxidative decomposition of a diphenylphosphine sulfide compound on or around the silver halide grains. This procedure uses a unique sequence of steps and provides increased photographic speed and manufacturing reproducibility.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: August 8, 2006
    Assignee: Eastman Kodak Company
    Inventors: Lilia P. Burleva, Kumars Sakizadeh, David R. Whitcomb, Sharon M. Simpson
  • 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: 7026109
    Abstract: The present invention provides a photothermographic material, comprising a photosensitive silver halide, a non-photosensitive organic solvent salt, a reducing agent for a silver ion, and a binder on one face of a support, for being applied by using an organic solvent, the photothermographic material further comprising at least one compound selected from the group of compounds consisting of: a compound represented by the following general formula (1), a compound having a ?-lactam ring, a compound having a group that is adsorptive to a silver halide and a group that reduces a silver halide and a precursor thereof:
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: April 11, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoyuki Ohzeki, Hiroyuki Mifune, Tadashi Inaba, Kohzaburoh Yamada, Katsuyuki Watanabe
  • Patent number: 7022469
    Abstract: A silver halide emulsion is disclosed, comprising at least one monovalent Au(I) complex coordinated with a compound represented by the following formula (1): R1—Ch—R2??(1) wherein R1 and R2 each independently represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, R1 and R2 may combine with each other to form a 3-, 4-, 5-, 6- or 7-membered ring, and Ch represents a sulfur atom, a selenium atom or a tellurium atom.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: April 4, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Suzuki, Hirotomo Sasaki
  • Patent number: 6949333
    Abstract: The present invention provides a photosensitive silver halide photographic emulsion comprising a silver iodide content of 41 mol % or more and 100 mol % or less and including a silver halide to which reduction sensitization is applied in the course of particle formation, and silver halide photographic emulsion comprising 41 mol % to 100 mol % of silver iodide and subjected to at least one of chalcogen sensitization and gold sensitization to the insides of particles.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: September 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Mifune
  • Patent number: 6921631
    Abstract: A silver halide color photographic material, which can provide photographs reduced in unevenness of finished image density with high productivity and at low prices even when it undergoes exposure and photographic processing operations under high-speed transport in the form of sheets, and a method of forming images by use of such a photographic material.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: July 26, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuaki Deguchi, Hiroyuki Yoneyama, Kazuaki Yoshida, Shin Soejima, Yoshiro Ochiai, Shinichi Nakahira
  • Patent number: 6887657
    Abstract: A silver halide color photographic photosensitive material, which containes at least one specific compound containing at least one alkenylcarbonyl group, in at least one layer on a support; and an image-forming method using the same.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: May 3, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Toshiyuki Makuta, Hidekazu Sakai, Hiroyuki Yoneyama, Tomonori Ichinose
  • Patent number: 6855488
    Abstract: A silver halide photosensitive material containing a compound selected from Types 1-4 below which is capable of undergoing a one-electron oxidation to form a one-electron oxidation product (OEOP), and a reducing compound (Type 1) the OEOP is capable of releasing further two or more electrons accompanying a subsequent bond cleavage reaction, (Type 2) the OEOP is capable of releasing further one electron accompanying a subsequent bond cleavage reaction, and the compound having, in its molecule, two or more groups adsorptive to silver halide, (Type 3) the OEOP is capable of releasing further one or more electrons after going through a subsequent bond forming process, and (Type 4) the OEOP is capable of releasing further one or more electrons after going through a subsequent intramolecular ring cleavage reaction.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: February 15, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kohzaburch Yamada, Naoki Asanuma
  • Patent number: 6852481
    Abstract: A silver halide emulsion is disclosed, comprising at least one monovalent Au(I) complex coordinated with a compound represented by the following formula (1): R1-Ch-2??(1) wherein R1 and R2 each independently represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, R1 and R2 may combine with each other to form a 3-, 4-, 5-, 6- or 7-membered ring, and Ch represents a sulfur atom, a selenium atom or a tellurium atom.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: February 8, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Suzuki, Hirotomo Sasaki
  • Patent number: 6844146
    Abstract: A silver halide color photosensitive material has at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, and at least one non-lightsensitive layer, on a support. The photosensitive material contains, in at least one of the layers, a compound having a reducing group and a compound having at least three hetero atoms capable of increasing a photographic speed of the photosensitive material in comparison with the case where the material does not contain the same.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: January 18, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichiro Hosokawa, Kohzaburoh Yamada, Yasuhiro Shimada
  • 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: 6828089
    Abstract: This invention relates to a silver halide photographic emulsion in which a silver emulsion high in silver iodide content of 80% by mol to 100% by mol based on the silver iodide content is chemically sensitized by at least one of methods of chalcogen sensitization and gold sensitization under the conditions that pAg is from 1.5 to 7.0, as well as a thermally developable photosensitive material having at least one image forming layer containing at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder on a support, and having at least one non-image recording protection layer to the image forming layer on the side remote from the support, and exposed by a laser beam in which the material contains the silver emulsion high in silver iodide content.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., LTD
    Inventor: Hiroyuki Mifune
  • Patent number: 6808871
    Abstract: A silver halide emulsion is disclosed, comprising silver halide grains, wherein at least 50% of total grain projected area is accounted for by tabular grains having an aspect ratio of 10 to 100 and at least 50% by number of total grains is accounted for by tabular grains having at least 30 dislocation lines per grain in the fringe portion of the grain, and the emulsion contains a compound having a function of permitting injection of at least two electrons into silver halide via photoexcitation by a single photon.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: October 26, 2004
    Assignee: Konica Corporation
    Inventors: Katsuhiko Suzuki, Yoshiko Iwai
  • Publication number: 20040202974
    Abstract: A silver halide emulsion is disclosed, comprising at least one monovalent Au(I) complex coordinated with a compound represented by the following formula (1):
    Type: Application
    Filed: April 16, 2004
    Publication date: October 14, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroyuki Suzuki, Hirotomo Sasaki
  • Patent number: 6794122
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide photographic emulsion layer, wherein the emulsion layer contains at least one compound of formulae (Ia), (Ib) and (Ic) and at least one compound of formula (II): wherein Z1 represents S, O, Se, Te, N or C; R, R31 and R32 each are an alkyl, aryl or heterocyclic group; D is a group necessary for forming a methine dye; V1 to V4 represent H or a monovalent substituent; M and M3 each are a charge-balancing counter ion; m and m3 each are a number or 0 or more necessary for neutralizing the charge of the molecule; Z31 and Z32 each are an atomic group necessary for forming the nitrogen-containing hetero-ring; L31 to L37 each represent a methine group; p31 and p32 each are 0 or 1; n3 is 0, 1, 2, 3 or 4, but the compound of formula (II) does not include the compounds of formulae (Ia), (Ib) and (Ic).
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: September 21, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takanori Hioki, Tetsuo Nakamura