Patents by Inventor Takeshi Hirose
Takeshi Hirose 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: 4163670Abstract: A color photographic material having on a support at least a photographic emulsion containing an excellent colored coupler represented by the general formula ##STR1## wherein R.sub.1 represents an aryl group or a heterocyclic group; R.sub.2 represents a phenyl group having a halogen atom, an alkoxy group, or an aryloxy group at the ortho-position to the imino group bonded to the 3-position of the pyrazolone ring of the coupler; and R.sub.3 represents a phenyl group having a hydroxyl group at the para-position to the azo group of the coupler; the coupler having a hydrophobic diffusion-resisting group in the molecule thereof.Type: GrantFiled: April 22, 1974Date of Patent: August 7, 1979Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Atsuaki Arai, Akio Okumura, Yukio Yokota
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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: 4138258Abstract: A multilayer color photographic material comprising a support having thereon at least a blue-sensitive silver halide emulsion containing a yellow coupler, a green-sensitive silver halide emulsion layer containing a magenta coupler, and a red-sensitive silver halide emulsion layer containing a cyan coupler, with the red-sensitive silver halide emulsion layer or a gelatin interlayer adjacent the red-sensitive silver halide emulsion layer containing a non-diffusible colored compound which, on coupling reaction with the oxidation product of a primary aromatic amino developing agent at development, can release a diffusible dye capable of being removed from the photographic layer.Type: GrantFiled: June 9, 1977Date of Patent: February 6, 1979Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Keisuke Shiba, Yukio Yokota, Kozo Inouye, Akio Okumura
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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
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Patent number: 4105452Abstract: A multi-layered color photographic light-sensitive material which comprises a support having thereon at least two light-sensitive silver halide emulsion layers which provide images having substantially different hues, with the light-sensitive material including 2-equivalent couplers and/or 4-equivalent anilinopyrazolone couplers and at least one of the light-sensitive silver halide emulsion layers or a colloidal layer of the light-sensitive material containing a hydroquinone derivative or a hydroquinone precursor substituted with a heterocyclic monothio group and an aliphatic monothio group, an aryl monothio group, an aliphatic oxy group, an aryloxy group or a heterocyclic oxy group and having a ballasting group containing 8 or more carbon atoms.Type: GrantFiled: April 2, 1976Date of Patent: August 8, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Toshiaki Aono, Seiiti Kubodera, Takeshi Hirose, Reiichi Ohi, Tadao Shishido
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Patent number: 4093424Abstract: A thermogenic composition comprising (1) at least one compound such as an alkali metal sulphide, polysulphide, hydrosulphide, hydrate thereof or mixture thereof, (2) at least one catalytically functional compound such as carbonaceous material or iron carbide and, if desired, (3) at least one filler such as natural or synthetic staple fibers or aluminum oxide.Type: GrantFiled: March 2, 1977Date of Patent: June 6, 1978Assignee: Toyo Ink Manufacturing Co,, Ltd.Inventors: Risaburo Yoshida, Keisuke Kaiho, Yusaku Ide, Takeshi Hirose
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Patent number: 4086094Abstract: A light-sensitive silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer which contains a color-forming coupler having a nitrogen-containing residue releasable on reaction of the coupler with an oxidation product of a color developing agent and which contains a thiocarbonyl group (S.dbd.C<), a selenocarbonyl group (Se.dbd.C<) or a telluriumcarbonyl group (Te.dbd.C<), the nitrogen atom of the nitrogen-containing residue being attached to the carbon atom in the coupling position of the coupler.Type: GrantFiled: June 19, 1975Date of Patent: April 25, 1978Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Kozo Inouye, Akio Okumura
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Patent number: 4015988Abstract: A multilayer color photographic light-sensitive material comprising a support having thereon at least two silver halide emulsion layer units, each of which is sensitive to radiation of a substantially different wavelength region within the wavelength region of from about 220 nm to about 800 nm and contains a color-forming coupler capable of forming a dye on coupling with an oxidized primary aromatic amine developing agent, with at least one of the emulsion layer units containing an ICC coupler represented by the general formula (I) ##STR1## wherein Cp represents a coupler residue; L and M each represents a nitrogen atom or a methine group, V represents a monocyclic or dicyclic aromatic ring of the benzene series, and at least one of L and M represnts a nitrogen atom; which releases a triazole derivative or a diazole derivative on coupling with an oxidized primary aromatic amine developing agent, and with the emulsion layer unit containing the ICC coupler represented by the general formula (I) or another layerType: GrantFiled: March 4, 1975Date of Patent: April 5, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi, Toshiaki Aono
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Patent number: 3990899Abstract: An incorporated-coupler multi-layered color photographic light-sensitive material which comprises a support having thereon at least two light-sensitive emulsion layer units which provide, upon color development, images having substantially different hues, at least one of the light-sensitive emulsion layer units comprising two or more unit layers in which at least one of which unit layers contain an ICC uncolored coupler alone or in combination with another coupler.Type: GrantFiled: May 6, 1974Date of Patent: November 9, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi
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Patent number: 3984245Abstract: A photographic photosensitive material comprising a support having thereon at least one photosensitive silver halide emulsion layer, at least one photosensitive silver halide emulsion layer containing a compound which releases an organic development inhibitor on development, and a colloid layer containing a basic synthetic polymer containing therein the repeating unit represented by the formula (I) ##EQU1## wherein R.sub.1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an aryl group; m is 1 or 2; n is 1 or 2; q is 1 or 2; and A.sub.1 represents a group containing a nitrogen atom which forms a secondary amino group, a tertiary amino group or a quaternary ammonium group, and A.sub.1 may combine with R.sub.2 ; or the formula (II) ##EQU2## wherein A.sub.2 represents a hydrogen atom or a substituted or unsubstituted alkyl group; A.sub.Type: GrantFiled: October 9, 1974Date of Patent: October 5, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Keisuke Shiba
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Patent number: 3964905Abstract: A color photographic cine or TV film on which a sound recording band or track can be formed without the necessity for a specific additional treatment comprising a film base having thereon at least a silver halide emulsion layer containing a coupler capable of forming a dye by the coupling reaction with the oxidation product of an aromatic primary amino developing agent, and at least one of the emulsion layers of the color photographic material containing a bleach inhibitor in only the portion defined as the sound recording track.Type: GrantFiled: March 13, 1974Date of Patent: June 22, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Yasushi Oishi, Tadao Sakai
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Patent number: 3961963Abstract: A photographic material comprising a support having thereon a photosensitive silver halide emulsion layer containing a hydroquinone derivative which releases a development inhibitor or a development accelerator at development and including an absorbing colloid layer for adsorbing the development inhibitor or accelerator containing silver halide particles which are not substantially developed by development on the silver halide emulsion layer or between the silver halide emulsion layer and the support.Type: GrantFiled: September 13, 1974Date of Patent: June 8, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Toshiaki Aono
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Patent number: 3961960Abstract: A multilayer color photographic material with improved color reproduction comprising a support having thereon at least two photosensitive silver halide emulsion layers which provide color images having different colors from each other, the multilayer color photographic material containing at least one interlayer color correction coupler as defined hereinafter.Type: GrantFiled: June 19, 1974Date of Patent: June 8, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi, Atsuaki Arai, Nobuo Furutachi, Harumi Katsuyama
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Patent number: 3936303Abstract: A silver halide photographic photosensitive element having a hydrophilic colloidal layer prepared by dispersing photographic additives in a fatty oil which is liquid at room temperature; which boils at temperatures higher than 250.degree.C under atmospheric pressure; which is soluble in water in a proportion of less than about 10% by weight at 25.degree.C; and which dissolves water in a proportion of less than about 5% by weight at 25.degree.C, and a developing method thereof.Type: GrantFiled: July 3, 1974Date of Patent: February 3, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Seiiti Kubodera, Hideki Naito, Takeshi Hirose
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Patent number: 3933500Abstract: A color photographic silver halide light-sensitive material which comprises a support having thereon at least two light-sensitive layers, at least one of said layers containing a compound capable of coupling with an oxidation product of a color developing agent and in which splitable hetero aromatic ring containing a triazole or diazole ring is connected to the carbon atom in the coupling position, through the nitrogen atom in the 1-position of said triazole or diazole ring.Type: GrantFiled: March 25, 1974Date of Patent: January 20, 1976Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Nobuo Furutachi, Harumi Katsuyama, Takeshi Hirose, Toshiaki Aono, Shoji Ishiguro
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Patent number: RE29379Abstract: A color photographic silver halide light-sensitive material which comprises a support having thereon at least two light-sensitive layers, at least one of said layers containing a compound capable of coupling with an oxidation product of a color developing agent and in which splitable hetero aromatic ring containing a triazole or diazole ring is connected to the carbon atom in the coupling position, through the nitrogen atom in the 1-position of said triazole or diazole ring.Type: GrantFiled: April 21, 1976Date of Patent: August 30, 1977Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Nobuo Furutachi, Harumi Katsuyama, Takeshi Hirose, Toshiaki Aono, Shoji Ishiguro