Patents by Inventor Toshiaki Aono
Toshiaki Aono 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).
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Patent number: 4587206Abstract: A method for forming an image is disclosed, which comprises heating a light-sensitive material having on a support, a light-sensitive silver halide, a binder and a dye releasing redox compound capable of releasing a dye through the reaction with the silver halide by heating, after or simultaneously with imagewise exposure, in the presence of a compound represented by the formula (A): ##STR1## wherein R is an aliphatic group with a valence of m+n, R.sup.1 is an aliphatic or aromatic group, and m and n are each an integer of 1 to 5. The presence of the compound markedly improves the stability of the light-sensitive material during its storage prior to the heat development.Type: GrantFiled: March 29, 1984Date of Patent: May 6, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4555476Abstract: An image-forming process is disclosed. This process comprises heating a photographic material comprising a support having provided thereon at least light-sensitive silver halide, binder, and a dye releasing redox compound in the presence of a compound represented by the following general formula (A): ##STR1## wherein R.sub.1 represents a (m+n)-valent straight, branched or cyclic alkane or a (m+n)-valent straight, branched or cyclic alkene, R.sub.2 and R.sub.3, which may be the same or different, each represents a straight, branched or cyclic alkyl group or a straight, branched or cyclic alkenyl group, n represents 0, 1, 2 or 3, and m represents 0, 1 or 2, with m+n being 1 or more,after, or simultaneously with, imagewise exposure in the state of substantial absence of water to thereby imagewise form a mobile dye.Type: GrantFiled: March 29, 1984Date of Patent: November 26, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4550071Abstract: An image forming method which comprises (A) exposing to an imagewise pattern of light a light-sensitive material having on a support at least (1) a light-sensitive silver halide, (2) a binder, and (3) a compound which is chemically involved in the reduction of the light-sensitive silver halide to silver under high temperature thereby causing the production or the release of a mobile dye, (B) heating the light-sensitive material in a substantially water-free condition to form the mobile dye with an imagewise distribution subsequently to or simultaneously with the exposure, and (C) transferring the mobile dye into a dye-fixing layer under high temperature and fixing it thereto wherein an acidic component participates chemically in the reaction system for forming the mobile dye after the conclusion of the mobile dye-forming reaction to bring about the desirable effect on lowering the fog density thereof.Type: GrantFiled: April 9, 1984Date of Patent: October 29, 1985Assignee: Fuji Photo Film. Co., Ltd.Inventors: Toshiaki Aono, Koichi Nakamura
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Patent number: 4536466Abstract: A method of forming an image comprising heating a light-sensitive material having at least a light-sensitive silver halide, a binder and a dye releasing redoc compound which is capable of reducing the light-sensitive silver halide and is capable of reacting with the light-sensitive silver halide by heating to release a hydrophilic dye on a support, under the condition substantially free from water after or simultaneously with imagewise exposure, in the presence of a compound represented by the general formula (A) described below to form imagewise a mobile dye. ##STR1## wherein R represents an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group; R.sup.1 represents an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group; R.sup.2 represents an alkyl group, an aryl group, an aralkyl group, a halogen atom or a group of R.sup.Type: GrantFiled: March 29, 1984Date of Patent: August 20, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4536467Abstract: A process for forming an image is described, comprising heating a light-sensitive material in a substantially water-free condition to form a mobile dye in an image pattern, said material having a support bearing thereon light-sensitive silver halide, a binder, and a dye-releasing redox compound capable of imagewise reducing the silver halide and releasing a hydrophilic dye on reaction with said silver halide when heated, after or simultaneously with imagewise exposure, in the presence of a compound having a melting point below 60.degree. C.Type: GrantFiled: March 29, 1984Date of Patent: August 20, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukihiko Sakaguchi, Toshiaki Aono, Shinsaku Fujita
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Patent number: 4500626Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a light-sensitive silver halide, a hydrophilic binder, a dye releasing activator and a dye releasing compound which reduces the silver halide and releases a hydrophilic dye. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and a heat-development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.Type: GrantFiled: September 30, 1982Date of Patent: February 19, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideki Naito, Hiroshi Hara, Toshiaki Aono, Kozo Sato, Shinsaku Fujita
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Patent number: 4500624Abstract: A heat-developable diffusion transfer color photographic material is disclosed. The material is comprised of a heat-developable color photographic element containing at least a light-sensitive silver halide, an organic silver salt oxidizing agent and a color image forming substance and an image receiving element capable of accepting a dye which is formed or released in the heat-developable color photographic element, the heat-developable color photographic element and the image receiving element being provided on the same support or being provided on different supports respectively, and either one of these elements or both of these elements contain a microcapsule comprising a water-immiscible compound which is liquid at a temperature of not less than 120.degree. C. as a core material and a water-insoluble polymer wall.Type: GrantFiled: April 7, 1983Date of Patent: February 19, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiaki Aono, Hiroshi Hara, Hideki Naito
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Patent number: 4478927Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing at least a light-sensitive silver halide and the photographic material containing an organic silver salt, a binder, a dye releasing activator and a dye releasing redox compound which releases a diffusible dye. The improvement comprises a support capable of receiving a released dye or a support having thereon a layer composed of an organic high molecular weight compound capable of receiving a released dye. The heat-developable color photographic material can easily provide a clear and stable color image by imagewise exposure to light and heat development procedure. A method of forming a color image using the heat-developable color photographic material is also disclosed.Type: GrantFiled: June 1, 1982Date of Patent: October 23, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideki Naito, Hiroshi Hara, Toshiaki Aono, Kozo Sato
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Patent number: 4474867Abstract: A diffusion transfer heat-developable color photographic material comprising a support having thereon a layer containing at least a light-sensitive silver halide, and the photographic material containing an organic silver salt oxidizing agent, a reducing agent, a hydrophobic binder and a dye releasing coupler which releases a diffusible dye upon heat development. The diffusion transfer heat-developable color photographic material can provide a stable color image by imagewise exposure to light and heat development procedure. A method of forming a color image using the diffusion transfer heat-developable color photographic material is also disclosed.Type: GrantFiled: May 12, 1982Date of Patent: October 2, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideki Naito, Hiroshi Hara, Toshiaki Aono, Kozo Sato
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Patent number: 4430415Abstract: A heat-developable color photographic material is disclosed. The material is comprised of a support having thereon a layer containing fine droplets of complex coacervate containing a light-sensitive silver halide, an organic silver salt oxidizing agent and a color image forming substance which are prepared by complex coacervation and hardened with a hardening agent. Color fog does not occur with the material and it can be easily prepared to provide a color image having good color balance by imagewise exposure to light and a heat development procedure. A process for forming a color image using the heat-developable color photographic material is also disclosed.Type: GrantFiled: September 2, 1982Date of Patent: February 7, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiaki Aono, Hiroshi Hara, Hideki Naito, Kozo Sato
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Patent number: 4386144Abstract: A process for producing a multicolor optical filter which comprises the steps of (1) exposing a light-sensitive material and (2) developing the exposed light-sensitive material, the process employing a specific light-sensitive material including a silver halide emulsion layer (L1) and a silver halide emulsion layer (L2), each layer containing therein a specific compound or dye. Such a multicolor optical filter is useful in color pick-up tubes and color solid state pick-up devices.Type: GrantFiled: August 24, 1981Date of Patent: May 31, 1983Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiaki Aono
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Patent number: 4294900Abstract: A process for producing a multicolor optical filter by exposing a multilayer color photographic material comprising:(1) a silver halide emulsion layer containing a colored coupler (1b) which has one of cyan, magenta or yellow colors and which forms a dye of one of the other two colors than the color of the colored coupler by a coupling reaction with the oxidation product of an aromatic primary amine color developing agent, and(2) a silver halide emulsion layer containing (i) a silver halide emulsion having a sufficiently high sensitivity that it can be exposed without exposing emulsion layer (1) and without increasing the color density in emulsion layer (1) and (ii) a colored coupler (2b) which has the same color as that of the dye formed by the coupling reaction of the colored coupler (1b) and which forms a cyan, magenta or yellow dye but not the color of the colored coupler (1b) or the color of the dye formed by the coupling reaction of the colored coupler (1b); the exposure is through a stripe or mosaic fiType: GrantFiled: February 22, 1980Date of Patent: October 13, 1981Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiaki Aono
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Patent number: 4283486Abstract: A silver halide color photographic light-sensitive material comprising a paper support, at least one color image-forming emulsion layer, and an oxygen-impermeable layer having an oxygen permeability of not more than 2.0 ml/m.sup.2 .multidot.hr.multidot.atm, said color image-forming layer and oxygen-impermeable layer being provided on the same side of the paper support.Type: GrantFiled: April 30, 1980Date of Patent: August 11, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiaki Aono, Takeshi Hirose
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Patent number: 4187110Abstract: A silver halide photographic light-sensitive material containing a development inhibitor releasing compound, which is capable of forming a substantially colorless product, and which is represented by the following general formula (I): ##STR1## wherein X represents ##STR2## --SO.sub.2 R.sub.1, --SO.sub.2 OR.sub.1, --SO.sub.2 NH.sub.2, --SO.sub.2 NHR.sub.1, --SO.sub.2 N(R.sub.1).sub.2, --CN, --N.sup.+ (R.sub.1).sub.3 or ##STR3## R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group and further two R.sub.Type: GrantFiled: December 7, 1977Date of Patent: February 5, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Mitsugu Tanaka, Takeshi Hirose, Toshiaki Aono
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Patent number: 4157916Abstract: A silver halide photographic light-sensitive material containing a novel development inhibitor releasing coupler compound, capable of forming a substantially colorless product, represented by the following general formula (I): ##STR1## wherein R represents ##STR2## X represents ##STR3## --SO.sub.2 R.sub.2, --SO.sub.2 OR.sub.2, --SO.sub.2 N(R.sub.2).sub.2, --SO.sub.2 NHR.sub.2, --CN, --N.sup.+ (R.sub.2).sub.3 or ##STR4## R.sub.1 and R.sub.2 each represents an aliphatic group, an aromatic group or a heterocyclic group and further two R.sub.Type: GrantFiled: July 13, 1977Date of Patent: June 12, 1979Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Mitsugu Tanaka, Toshiaki Aono, Takeshi Hirose
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Patent number: 4149886Abstract: A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer containing a development inhibitor releasing photographic coupler represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which can be the same or different, each represents a hydrogen atom, an aliphatic residue, an aromatic residue or a heterocyclic residue; and X represents a triazole ring which is released upon reaction of the coupler with an oxidation product of an aromatic primary amine developing agent and which exhibits development inhibiting effects; wherein the triazole ring is connected to the coupling position of the coupler through the nitrogen atom at the 1-position of the triazole ring.Type: GrantFiled: December 9, 1976Date of Patent: April 17, 1979Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsugu Tanaka, Morio Yagihara, Toshiaki Aono, Takeshi Hirose
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Patent number: 4146396Abstract: A two equivalent yellow, magenta or cyan coupler having various superior properties and suitable for use in color photographic systems and having a releasable group represented by the following general formula: ##STR1## wherein R represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aralkyl group, an aralkenyl group, an aryl group or a heterocyclic group; and Y represents the non-metallic atoms necessary to form a 5- to 7-membered ring together with the N atom forming a part thereof, a photographic light-sensitive material containing the two equivalent coupler and a method of forming color photographic images which comprises developing an imagewise exposed silver halide photographic emulsion with an aromatic primary amine developing agent in the presence of the two equivalent coupler.Type: GrantFiled: January 24, 1977Date of Patent: March 27, 1979Assignee: Fuji Photo Film Co., Ltd.Inventors: Yukio Yokota, Toshiaki Aono, Takeshi Hirose
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Patent number: 4144071Abstract: A silver halide photographic light-sensitive material having improved image quality which comprises at least one hydrophilic colloid layer containing at least one reducing compound, preferably having an oxidation potential less than about 1.Type: GrantFiled: February 28, 1977Date of Patent: March 13, 1979Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Toshiaki Aono, Takeshi Hirose, Tadao Shishido
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Patent number: 4121934Abstract: A photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer containing a coupling compound which forms a colorless compound with oxidized developer, said coupling compound having the formula ##STR1## wherein R, X and Y are defined in the specification.Type: GrantFiled: July 7, 1977Date of Patent: October 24, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Mitsugu Tanaka, Toshiaki Aono, Takeshi Hirose
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Patent number: 4108663Abstract: A photographic developing agent represented by the formula (I): ##STR1## wherein one of X and Y is a group capable of inhibiting development on release immediately after the developing agent is oxidized at the step of development, and the other of X and Y is an --NH--SO.sub.2 --Z group (wherein Z is an alkyl group, an aryl group or a heterocyclic group); A is a hydrogen atom or a group hydrolyzable under alkaline conditions; R.sub.1, R.sub.2, and R.sub.3, which may be the same or different, each is a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an --S--Z' group (wherein Z' is an alkyl group, an aryl group or a heterocyclic group), an --NH--SO.sub.2 --Z" group (wherein Z" is an alkyl group, an aryl group or a heterocyclic group), an acylamido group, an amino group, a halogen atom, a hydroxy group, or an acyloxy group; and R.sub.1 and R.sub.Type: GrantFiled: November 3, 1976Date of Patent: August 22, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsugu Tanaka, Masaki Okazaki, Toshiaki Aono, Takeshi Hirose