Patents by Inventor Kaoru Onodera
Kaoru Onodera 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: 4562138Abstract: This invention relates to nitrogen containing heterocyclic compounds represented by the general formula ##STR1## wherein Z is non-metallic atoms necessary to form a tetrazole, a benzotriazole or a benzothiazole, either substituted or unsubstituted, n is either 1 or 2 and R is alkyl or phenyl. The above mentioned compounds can be suitably used in a photographic material as a development inhibitor precursor.Type: GrantFiled: August 21, 1984Date of Patent: December 31, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Morito Uemura, Kaoru Onodera
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Patent number: 4540658Abstract: A silver halide color photographic product with dye images having improved fastness to light is disclosed. The product has at least one dye image forming layer on a support and further includes at least one of the compounds of formula (I) or (II) in said dye image forming layer and/or an adjoining or an adjacent layer: ##STR1## wherein R is an alkyl group, an aryl group or a heterocyclic group; X is an alkylene group; and Y is an alkylene or arylene group; and ##STR2## wherein R.sub.1 is a hydrogen atom, an alkyl group or an aryl group; R.sub.2 and R.sub.3 are each an alkyl group; Y.sub.1 is an alkylene or arylene group; Z is an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group or an alkylene group; and n is an integer of 1 to 20.Type: GrantFiled: June 24, 1983Date of Patent: September 10, 1985Assignee: Konishiroku Photo Industry Co. Ltd.Inventors: Masao Sasaki, Kaoru Onodera
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Patent number: 4540656Abstract: A color photographic light-sensitive material comprising, on a reflective support, at least one light-sensitive silver halide emulsion layer containing a dye-forming coupler and a non-light-sensitive layer provided on the light-sensitive silver halide emulsion layer, located furthest from the reflective support, the non-light-sensitive layer containing:(a) a benzotriazole derivative represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 independently represent an alkyl, an alkoxy, an alkenyl, each alkyl, alkoxy, or alkenyl having not less than 4 carbon atoms, an aryl, or an aryloxy, said aryl and aryloxy each being substituted or unsubstituted and wherein R.sub.3 represents hydrogen, a halogen, an alkyl, an alkoxy, an alkenyl, each alkyl, alkoxy, or alkenyl having not less than 4 carbon atoms, an aryl, or an aryloxy; and(b) at least one compound having selected from the formulae (II) or (III): ##STR2## wherein R.sub.4 and R.sub.Type: GrantFiled: May 27, 1983Date of Patent: September 10, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toyoki Nishizima, Masao Sasaki, Kaoru Onodera
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Patent number: 4540653Abstract: A photographic element comprising a support having thereon a layer containing a dye that is formed by the reaction of an anilino-type magenta coupler with the oxidized product of a color developing agent, the said layer comprising an organic solvent having a dielectric constant of not more than 6.5 and at least one of metallic complexes having the following Formula [I], Formula [II] or Formula [III]: ##STR1## In Formulas [I], [II] and [III], M is a nickel atom, copper atom, cobalt atom, palladium atom or platinum atom; X.sub.1 and X.sub.2 each is an oxygen atom, sulfur atom or --NR.sub.5 -- (wherein R.sub.5 is a hydrogen atom, an alkyl, aryl or hydroxyl radical); X.sub.3 is a hydroxyl or mercapto radical; Y is an oxygen atom or sulfur atom; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is a hydrogen atom or a halogen atom or a cyano radical, or an alkyl, aryl, cycloalkyl or heterocyclic radical which each is bonded directly or through a divalent combining radical to a carbon atom; and at least one of the R.sub.Type: GrantFiled: August 23, 1984Date of Patent: September 10, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toyoki Nishijima, Kaoru Onodera
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Patent number: 4537857Abstract: A silver halide light-sensitive material having a support and at least one silver halide emulsion is provided. The silver halide emulsion layer contains in combination at least one cyan coupler of Formula (I) and at least one cyan coupler of Formula (II).Type: GrantFiled: November 29, 1983Date of Patent: August 27, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shun Takada, Kaoru Onodera, Takashi Kadowaki
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Patent number: 4526864Abstract: A silver halide photographic material. A support contains at least one silver halide emulsion layer that has in combination at least one cyan coupler of Formula I with at least one dye image stabilizer of Formula II or III.Type: GrantFiled: December 29, 1983Date of Patent: July 2, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shun Takada, Kaoru Onodera, Takashi Kadowaki
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Patent number: 4526853Abstract: A silver halide color photographic material having improved whiteness and a method of processing said material are disclosed. The material is formed on a hydrophobic support at least one silver halide emulsion layer, a layer containing a brightening agent and a layer containing a compound that is capable of trapping the brightening agent, said layer containing a compound capable of trapping the brightening agent being separate from the layer containing the brightening agent and positioned more remote from the support than the latter layer, and also, the method for providing enhanced brightening effect comprises subjecting said material to imagewise exposure and color development so that said brightening agent is diffused into and trapped by the layer containing capable of trapping the brightening agent.Type: GrantFiled: October 14, 1983Date of Patent: July 2, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toyoki Nishijima, Masao Sasaki, Kaoru Onodera
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Patent number: 4518686Abstract: A color photographic light-sensitive material comprising a reflective support having thereon a plurality of silver halide emulsion layers of which the emulsion layer located farthest from said support has, on each of both the support side thereof and the uppermost side at least one nonlight-sensitive layer containing an effective amount of an ultraviolet absorbing agent, said ultraviolet absorbing agent being used in said nonlight-sensitive layer on the uppermost side of said emulsion layer being a 2-(2'-hydroxyphenyl)benzotriazole-type compound which is in the liquid form at normal room temperature.Type: GrantFiled: June 3, 1983Date of Patent: May 21, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masao Sasaki, Kaoru Onodera
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Patent number: 4517284Abstract: A light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that the said silver halide comprises silver halide grains containing at least 80 molar % of silver chloride and at least one of merocyanine dyes having the formula ##STR1## wherein R.sub.1 and R.sub.2 individually represent an alkyl group, an alkenyl group or an aryl group provided that at least one of R.sub.1 and R.sub.2 is an alkyl or aryl group having a sulfo group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 individually represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group or a phenyl group and any one pair of R.sub.3 and R.sub.4, R.sub.5 and R.sub.6, R.sub.1 and R.sub.6 or R.sub.4 and R.sub.5 may joint each other to form a ring; X is an oxygen atom, a sulfur atom or a selenium atom; and Y is an oxygen atom, a sulfur atom or a selenium atom provided that at least one of X and Y represents a selenium atom.Type: GrantFiled: November 18, 1982Date of Patent: May 14, 1985Assignee: Konishiroku Photo Ind. Co., Ltd.Inventors: Nobuaki Kagawa, Noboru Fujimori, Shigeo Tanaka, Kaoru Onodera
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Patent number: 4490459Abstract: The invention relates to multi-layered color photosensitive materials having a support, a red photosensitive silver halide emulsion layer containing a non-diffusible cyan coupler, a green photosensitive silver halide emulsion layer containing a non-diffusible yellow coupler and a blue photosensitive silver halide emulsion layer containing a non-diffusible magenta coupler coated on a support in the order recited and wherein the green photosensitive emulsion layer contains a compound capable of reacting with an oxidized color developing agent to release a development inhibiting substance.Type: GrantFiled: May 12, 1983Date of Patent: December 25, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshifumi Iijima, Kaoru Onodera, Wataru Fujimatsu
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Patent number: 4473288Abstract: In a photographic device, there are provided (a) a means for measuring luminous intensity distribution on an object and (b) a screen means for controlling gradation of an image to be formed on a photosensitive material in accordance with the luminous intensity distribution and/or maximum/minimum luminous intensity difference of the object measured by the means (a).Type: GrantFiled: December 7, 1982Date of Patent: September 25, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kaoru Onodera, Satoru Hohnishi, Kazuyuki Kobayashi, Kazuo Shiozawa
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Patent number: 4472496Abstract: There is disclosed a process for producing a silver halide emulsion comprising sulfur sensitizing a silver halide emulsion for photography containing a chloride rich silver halide comprising 80 mole % or more of silver chloride under the conditions of pAg and/or temperature during the sulfur sensitization which are constituted of at least two different steps with lapse of time.According to this invention, there is provided a silver halide emulsion which can give a good image without any change, can exhibit advantages of silver chloride, and is improved in the drawbacks of high fog and poor shelf-stability of silver chloride.Type: GrantFiled: December 30, 1982Date of Patent: September 18, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeo Tanaka, Kaoru Onodera
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Patent number: 4469785Abstract: There is disclosed a light-sensitive silver halide color photographic material having a silver halide emulsion layer containing at least one layer of a negative working silver halide on a support, comprising the negative working silver halide comprises at least 80 mole % of silver chloride, and being color sensitized with at least one kind of sensitizing dyes having the local maximum value of spectral sensitivity in the wavelength region from 445 nm to 490 nm and at least one kind of sensitizing dyes having the local maximum value of spectral sensitivity in the wavelength region from 420 nm to less than 445 nm.The photographic material according to this invention exhibits excellent color reproducibility and quick process suitability.Type: GrantFiled: December 10, 1982Date of Patent: September 4, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeo Tanaka, Kaoru Onodera, Noboru Fujimori
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Patent number: 4456681Abstract: A color photographic material comprising on a support a first silver halide emulsion layer containing a yellow coupler, a second silver halide emulsion layer containing a magenta coupler, a third silver halide emulsion layer containing a cyan coupler, said third emulsion layer being positioned farthest from the support, a first non-light-sensitive layer formed on one side of said third emulsion layer opposite to the support, and a second non-light-sensitive layer formed on the other side of said third emulsion layer, at least said first non-light sensitive layer containing a UV absorber.Type: GrantFiled: May 27, 1983Date of Patent: June 26, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Takashi Kadowaki, Kaoru Onodera
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Patent number: 4409321Abstract: A method for reproducing a color image. A dye image is formed on a photographic light-sensitive material by imagewisely exposing the material and processing to form a dye image. Through the imaged photographic light-sensitive material, an exposure is made on a photographic printing light-sensitive material which is processed in an alkaline activator solution to form a dye image thereon. The photographic light-sensitive material contains a transparent support provided thereon with red-sensitive, green-sensitive, and blue-sensitive silver halide emulsion layers. The layers each contain one of three different nondiffusible couplers capable of forming, by coupling, compounds having spectral absorption maximum wavelength in the wavelength region longer than 340 nm. The spectral absorption maximum wavelength of the compounds differ by at least 30 nm.Type: GrantFiled: January 22, 1982Date of Patent: October 11, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kaoru Onodera, Toshifumi Iijima, Wataru Fujimastu
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Patent number: 4370410Abstract: A silver halide color material comprising red, green and blue photosensitive silver halide emulsion layers, each of which contains a coupler, and in which said green photosensitive layer is composed of at least two layers and between those of which said red photosensitive layer is arranged, and said green photosensitive layer contains an anti-diffusive yellow coupler.Type: GrantFiled: December 23, 1981Date of Patent: January 25, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshifumi Iijima, Wataru Fujimatsu, Kaoru Onodera
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Patent number: 4287291Abstract: This invention relates to a light-sensitive color photographic material and more particularly to a diffusion transfer color photographic film unit, the processing composition of which contains a specific saturated aliphatic or saturated alicyclic alcohol.Type: GrantFiled: November 21, 1979Date of Patent: September 1, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventor: Kaoru Onodera
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Patent number: 4277553Abstract: A silver halide emulsion containing an image dye-forming substance and a hydroquinone compound containing at least one electron attracting group as a color fog inhibiting agent.Type: GrantFiled: September 19, 1979Date of Patent: July 7, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kaoru Onodera, Noboru Mizukura, Ryuichiro Kobayashi