Patents by Inventor Yasuaki Deguchi
Yasuaki Deguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 7732124Abstract: 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: GrantFiled: November 20, 2008Date of Patent: June 8, 2010Assignee: Fujifilm CorporationInventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
-
Patent number: 7687229Abstract: A silver halide color photographic light-sensitive material having, on a support, at least each one light-sensitive silver halide emulsion layers containing yellow-, magenta-, or cyan-dye-forming-coupler, and at least one light-insensitive hydrophilic colloid layer, wherein at least one of the dye-forming couplers is a dye-forming coupler that forms an azomethine dye having a solubility of 1×10?8 mol/L to 5×10?3 mol/L in ethyl acetate; and an image forming method using the light-sensitive material.Type: GrantFiled: August 23, 2005Date of Patent: March 30, 2010Assignee: FUJIFILM CorporationInventors: Yasuaki Deguchi, Kiyoshi Takeuchi, Mamoru Sakurazawa, Makoto Yamada, Takehiko Satou
-
Patent number: 7611829Abstract: 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: GrantFiled: January 27, 2005Date of Patent: November 3, 2009Assignee: Fujifilm CorporationInventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
-
Publication number: 20090130613Abstract: 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: ApplicationFiled: November 20, 2008Publication date: May 21, 2009Inventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
-
Publication number: 20080057449Abstract: The present invention provides a black and white photothermographic material including, 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, a color developing agent, and a coupler, wherein the black and white photothermographic material includes at least two image forming layers including the photosensitive silver halide, in which a first image forming layer includes at least the reducing agent for silver ions, a second image forming layer includes at least the color developing agent, and a sensitivity difference between the first image forming layer and the second image forming layer is 0.2 or more when expressed by log E0 as a logarithmic value of an exposure value (E0) necessary for obtaining a one-half density for the sum of maximum density and fog.Type: ApplicationFiled: July 5, 2007Publication date: March 6, 2008Applicant: FUJIFILM CORPORATIONInventors: Katsuhisa Ohzeki, Yasuaki Deguchi, Yasuhiro Yoshioka, Kouta Fukui
-
Publication number: 20070298348Abstract: A silver halide color photographic light-sensitive material having, on a support, at least each one light-sensitive silver halide emulsion layers containing yellow-, magenta-, or cyan-dye-forming-coupler, and at least one light-insensitive hydrophilic colloid layer, wherein at least one of the dye-forming couplers is a dye-forming coupler that forms an azomethine dye having a solubility of 1×10?8 mol/L to 5×10?3 mol/L in ethyl acetate; and an image forming method using the light-sensitive material.Type: ApplicationFiled: August 23, 2005Publication date: December 27, 2007Applicant: FUJIFILM CorporationInventors: Yasuaki Deguchi, Kiyoshi Takeuchi, Mamoru Sakurazawa, Makoto Yamada, Takehiko Satou
-
Publication number: 20070231754Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a color developing agent, and a coupler which reacts with an oxidation product of the color developing agent to form a dye, wherein a mean particle size of the non-photosensitive organic silver salt is 0.38 ?m or less. A black and white photothermographic material which exhibits high sensitivity, high density, excellent image tone, and excellent coating ability is provided.Type: ApplicationFiled: March 20, 2007Publication date: October 4, 2007Inventors: Katsuhisa Ohzeki, Yasuaki Deguchi, Kouta Fukui, Yasuhiro Yoshioka
-
Publication number: 20070196777Abstract: The present invention provides a black and white photothermographic material having, a first image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for silver ions, wherein the black and white photothermographic material further has a second image forming layer including at least a coupler, and at least one of the first image forming layer and the second image forming layer includes a color developing agent. A black and white photothermographic material which exhibits high sensitivity, excellent image tone, and excellent storage stability is provided.Type: ApplicationFiled: December 1, 2006Publication date: August 23, 2007Inventors: Yasuaki Deguchi, Kouta Fukui, Katsuhisa Ohzeki, Masahiko Taniguchi, Yasuhiro Yoshioka
-
Publication number: 20070196778Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide and a non-photosensitive organic silver salt, and a non-photosensitive layer including at least a coupler, wherein at least one of the image forming layer and the non-photosensitive layer includes a color developing agent; a grain density of the photosensitive silver halide in the image forming layer is from 20 grains/?m3 to 103 grains/?m3; and an optical density of an image formed by imagewise exposing and thermally developing the black and white photothermographic material satisfies the following equation (A): 0.02<Dc<D/4 ??Equation (A) wherein D represents a value of an optical density in a range of from 1.0 to 2.0; and Dc represents an optical density obtained by the dye in the optical density of the image.Type: ApplicationFiled: December 14, 2006Publication date: August 23, 2007Inventors: Katsuhisa Ohzeki, Yasuaki Deguchi, Kouta Fukui, Yasuhiro Yoshioka
-
Publication number: 20070196779Abstract: The present invention provides a black and white photothermographic material including, 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, a color developing agent, and a coupler which reacts with an oxidation product of the color developing agent to form a dye, wherein a total amount of ammonia included on one side of the support having thereon the photosensitive silver halide is from 5 mg/m2 to 25 mg/m2, and an optical density of an image formed by imagewise exposing and thermally developing the black and white photothermographic material satisfies the following equation (A): 0.02<Dc<D/4 ??Equation (A) wherein D represents an optical density in a range of from 1 to 2, and Dc represents an optical density obtained by the dye in the optical density of the image.Type: ApplicationFiled: January 25, 2007Publication date: August 23, 2007Inventors: Kouta Fukui, Katsuhisa Ohzeki, Yasuaki Deguchi, Yasuhiro Yoshioka
-
Publication number: 20070154853Abstract: 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: ApplicationFiled: January 27, 2005Publication date: July 5, 2007Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
-
Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound
Patent number: 7196194Abstract: A yellow dye-forming coupler represented by formula (I): wherein Q represents a group of nonmetallic atoms that form a 5- to 7-membered ring in combination with the —N?C—N(R1)—; R1 and R2 each represent a substituent; R4 represents an alkyl group; m represents an integer of 0 to 4; and X represents a hydrogen atom, or a group capable of being split-off upon a coupling reaction with an oxidized product of a developing agent; and when R4 represents a primary alkyl group, R1 represents —(CH2)3O—R101 in which R101 is an alkyl group having 4 to 8 carbon atoms. A silver halide color photographic light-sensitive material having at least one yellow dye-forming coupler represented by formula (I) in at least one layer provided on a support.Type: GrantFiled: October 7, 2003Date of Patent: March 27, 2007Assignee: Fuji Photo Film Co., LtdInventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima, Yasuaki Deguchi, Naoto Matsuda, Akira Ikeda, Hisashi Mikoshiba, Masaharu Sugai, Taiji Katsumata -
Publication number: 20070065764Abstract: The present invention provides a black and white photothermographic material having, on a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a compound represented by the following formula (1): wherein R101, R102, R104, and R105 each independently represent a hydrogen atom or a substituent; R103 represents a halogen atom, an alkyl group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an acylamino group, or a sulfonylamino group; and P represents a group forming a phenol compound represented by formula (2) by cleavage of the O—P bond at the time of thermal development.Type: ApplicationFiled: September 18, 2006Publication date: March 22, 2007Inventors: Masahiko Taniguchi, Hideo Hanawa, Katsuhisa Ohzeki, Yasuaki Deguchi
-
Publication number: 20070065762Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a silver salt of a fatty acid, a reducing agent, and a binder, wherein the black and white photothermographic material includes a compound represented by formula (1) as the reducing agent, a coupler which reacts with an oxidation product of the compound represented by formula (1) to form a dye, and a compound which reacts with an oxidation product of the compound represented by formula (1) to form a product that has substantially no absorption in the visible light region: wherein R1, R2, R3, and R4 represent a hydrogen atom or a substituent; and R5 represents an alkyl group, an aryl group, or a heterocyclic group. An image forming method using the black and white photothermographic material is also provided.Type: ApplicationFiled: July 17, 2006Publication date: March 22, 2007Inventors: Yasuaki Deguchi, Yasuhiro Yoshioka
-
Patent number: 7175976Abstract: A silver halide color photographic light-sensitive material comprising at least one yellow color developable light-sensitive silver halide emulsion layer, at least one magenta color developable light-sensitive silver halide emulsion layer, and at least one cyan color developable light-sensitive silver halide emulsion layer, each of which is provided on a support: which comprises at least one yellow coupler of formula (I) and at least one cyan coupler of formula (A); wherein Q represents a group of non-metal atoms that form a 5- to 7-membered ring in combination with —N?C—N(R1)-, each of R1 and R2 represents a substituent, m represents an integer of 0 to 5, and X represents a hydrogen atom or a group capable of being split-off upon a coupling reaction; wherein R11 and R12 each represent an alkyl group or an aryl group, J represents an alkylene group, and X represents a hydrogen atom or a group that can split off upon a coupling reaction.Type: GrantFiled: October 21, 2004Date of Patent: February 13, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Yoneyama, Yasuaki Deguchi, Naoto Ohshima, Kiyoshi Takeuchi, Akira Ikeda, Naoto Matsuda
-
Patent number: 7008760Abstract: Disclosed is a silver halide color photographic light-sensitive material having at least three silver halide emulsion layers different in color sensitivity from each other on a reflective support, wherein said reflective support is one selected from the group consisting of the following (a), (b) and (c): (a) the reflective support is a water-resistant resin-coated support, and at least one layer of the water-resistant resin layers between the support and the silver halide emulsion layers is a biaxially oriented polyolefin layer having micropores, (b) the reflective support is a water-resistant resin-coated support, and at least one layer of the water-resistant resin layers between the support and the silver halide emulsion layers is a biaxially oriented polyolefin layer having micropores, and between the polyolefin layer and the silver halide emulsion layers, a polyolefin layer having no micropore is provided, and (c) the reflective support is one prepared by coating onto at least the side of the emulsion-coaType: GrantFiled: May 18, 2000Date of Patent: March 7, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Yoneyama, Yasuaki Deguchi, Yasuhiro Yoshioka, Hidekazu Sakai, Katsuyuki Takada, Yoshiro Ochiai, Shin Soejima, Kentaro Okazaki
-
Patent number: 7009048Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I). A method for producing an azomethine dye, which method comprises using a compound of the formula (I): wherein E is an aryl, heterocyclic, or —C(?O)W group, in which W is a nitrogen-containing heterocyclic group, Z is an aryl or heterocyclic group, and X and Y each independently are ?O, ?S or ?N—R, in which R is a substituent, with the proviso that when E is an aryl or heterocyclic group, X and Y each are ?O, and that when E is a —C(?O)W group, Z is a substituted aryl group.Type: GrantFiled: August 6, 2004Date of Patent: March 7, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeki Uehira, Jun Ogasawara, Kiyoshi Takeuchi, Yasuhiro Shimada, Yasuaki Deguchi
-
Publication number: 20050266360Abstract: 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: ApplicationFiled: March 15, 2005Publication date: December 1, 2005Inventors: Yasuaki Deguchi, Hiroyuki Yoneyama, Kazuaki Yoshida, Shin Soejima, Yoshiro Ochiai, Shinichi Nakahira
-
Patent number: 6921631Abstract: 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: GrantFiled: July 17, 2003Date of Patent: July 26, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuaki Deguchi, Hiroyuki Yoneyama, Kazuaki Yoshida, Shin Soejima, Yoshiro Ochiai, Shinichi Nakahira
-
Publication number: 20050123868Abstract: A silver halide color photographic light-sensitive material comprising at least one yellow color developable light-sensitive silver halide emulsion layer, at least one magenta color developable light-sensitive silver halide emulsion layer, and at least one cyan color developable light-sensitive silver halide emulsion layer, each of which is provided on a support: which comprises at least one yellow coupler of formula (I) and at least one cyan coupler of formula (A); wherein Q represents a group of non-metal atoms that form a 5- to 7-membered ring in combination with —N?C—N(R1)-, each of R1 and R2 represents a substituent, m represents an integer of 0 to 5, and X represents a hydrogen atom or a group capable of being split-off upon a coupling reaction; wherein R11 and R12 each represent an alkyl group or an aryl group, J represents an alkylene group, and X represents a hydrogen atom or a group that can split off upon a coupling reaction.Type: ApplicationFiled: October 21, 2004Publication date: June 9, 2005Inventors: Hiroyuki Yoneyama, Yasuaki Deguchi, Naoto Ohshima, Kiyoshi Takeuchi, Akira Ikeda, Naoto Matsuda