Patents by Inventor Takahiko Nojima
Takahiko Nojima 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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Publication number: 20110036406Abstract: Disclosed is an organic photoelectric conversion element having high photoelectric conversion efficiency and high durability. Also disclosed are a solar cell and an optical sensor array, each using the organic photoelectric conversion element The organic photoelectric conversion element comprises a bulk heterojunction layer wherein an n-type semiconductor material and a p-type semiconductor material are mixed. The organic photoelectric conversion element is characterized in that the n-type semiconductor material is a polymer compound and the p-type semiconductor material is a low-molecular-weight compound.Type: ApplicationFiled: August 21, 2009Publication date: February 17, 2011Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Yasushi Okubo, Takahiko Nojima, Hiroaki Itoh, Ayako Wachi
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Patent number: 7279199Abstract: A method of producing an ink-jet recording sheet containing the steps of: (a) coating a water-based coating composition A to form a layer on a non-absorptive support, the coating composition A containing a hydrophilic binder and inorganic microparticles having an average particle diameter of primary particles of not more than 30 nm, (b) drying the coated layer so as to form a porous ink absorptive layer, and (c) applying a water-based coating composition B on the porous ink absorptive layer across a direction perpendicular to a conveying direction of the non-absorptive support employing a slot nozzle spray device, the slot nozzle spray device having: (i) a coating nozzle for supplying the water-based coating composition B; and (ii) a gas nozzle for ejecting a gas to an aperture portion of the coating nozzle, wherein the water-based coating composition B has a dynamic surface tension of 20 to 55 mN/m.Type: GrantFiled: July 12, 2005Date of Patent: October 9, 2007Assignee: Konica Minolta Photo Imaging, Inc.Inventors: Takahiko Nojima, Yosuke Sone, Shigeru Kojima
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Publication number: 20070052785Abstract: A method of forming an ink-jet image comprising the steps of: i. ejecting ink compositions from an ink-jet head onto a recording medium; and ii. forming an image, wherein a) the recording medium is a porous type medium having a porous ink absorbing layer on a non-water absorptive support, b) the ink-jet head has a plurality of nozzles which eject more than two ink compositions respectively, and one ink composition is a clear ink, and one ink composition is a color ink, c) the clear ink contains water dispersible microscopic resin particles having an average diameter of 10-200 nm of more than 1 weight %, and d) pH of the ink compositions is 6.5-11.0, and an absolute value of a difference, between an ink composition pH and film surface pH of the recording medium, is less than 4.0.Type: ApplicationFiled: August 24, 2006Publication date: March 8, 2007Applicant: KONICA MINOLTA PHOTO IMAGING, INC.Inventors: Hiroaki ITOH, Takahiko NOJIMA
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Publication number: 20060019042Abstract: A method of producing an ink-jet recording sheet containing the steps of: (a) coating a water-based coating composition A to form a layer on a non-absorptive support, the coating composition A containing a hydrophilic binder and inorganic microparticles having an average particle diameter of primary particles of not more than 30 nm, (b) drying the coated layer so as to form a porous ink absorptive layer, and (c) applying a water-based coating composition B on the porous ink absorptive layer across a direction perpendicular to a conveying direction of the non-absorptive support employing a slot nozzle spray device, the slot nozzle spray device having: (i) a coating nozzle for supplying the water-based coating composition B; and (ii) a gas nozzle for ejecting a gas to an aperture portion of the coating nozzle, wherein the water-based coating composition B has a dynamic surface tension of 20 to 55 mN/m.Type: ApplicationFiled: July 12, 2005Publication date: January 26, 2006Inventors: Takahiko Nojima, Yosuke Sone, Shigeru Kojima
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Publication number: 20050266183Abstract: The ink jet recording material having: a support; a porous layer containing a hydrophilic binder and articulates, formed onto a support; wherein a coating solution is provided onto the porous layer, the coating solution being adapted to make a property to a specific light different from a property of a lower structure.Type: ApplicationFiled: May 23, 2005Publication date: December 1, 2005Applicant: Konica Minolta Photo Imaging, Inc.Inventors: Kouji Tashiro, Shinichi Suzuki, Takahiko Nojima, Yosuke Sone
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Publication number: 20050170082Abstract: A manufacturing method for manufacturing an ink-jet recording material having a support carrying a first layer and an ink-receiving layer in that order. The method includes emulsion polymerizing a monomer in the presence of a polymer dispersant having at least a hydroxyl group for preparing a resin; first coating a first coating liquid including the resin onto the support to form the first layer; and second coating a second coating liquid to form the ink-receiving layer.Type: ApplicationFiled: March 24, 2005Publication date: August 4, 2005Applicant: KONICA CORPORATIONInventors: Takahiko Nojima, Keiji Ohbayashi
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Publication number: 20050120947Abstract: A coating apparatus comprising: a slot nozzle spraying apparatus provided with a pair of inner die blocks and outer die blocks at the outside of said pair of inner die blocks, having a coating solution nozzle formed between said pair of inner die blocks, and gas nozzles constituted between one inner die block and outer die block adjacent thereto, and between another inner die block and outer die block adjacent thereto, wherein, angle ? between the solution flow passage of said coating solution nozzle and the gas flow passage of one of said gas nozzle is 15-60 degree.Type: ApplicationFiled: December 2, 2004Publication date: June 9, 2005Inventors: Yosuke Sone, Takahiko Nojima
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Patent number: 6620470Abstract: The present invention is to provide a ink-jet recording sheet of high ink absorptive property, high cockling resistance, high surface smoothness, low cost, and high image quality with incorporating specially designed void-forming absorptive layer whose absorptiveness is determined by a ratio of a Bristow Test value and a Cobb value.Type: GrantFiled: August 28, 2001Date of Patent: September 16, 2003Assignee: Konica CorporationInventors: Takahiko Nojima, Keiji Ohbayashi
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Publication number: 20030044586Abstract: An ink-jet recording material comprising a support having thereon a first layer and an ink-receiving layer in that order, wherein the first layer comprising a resin polymerized by emulsion polymerization in the presence of a polymer dispersant having at least a hydroxyl group; and the ink-receiving layer comprising water-soluble binder and inorganic particles having an average particle diameter of 3 to 200 nm.Type: ApplicationFiled: June 7, 2002Publication date: March 6, 2003Applicant: KONICA CORPORATIONInventors: Takahiko Nojima, Keiji Ohbayashi
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Detecting reagent for double-stranded nucleic acid and double-stranded nucleic acid detecting method
Patent number: 6528648Abstract: The present invention provides a novel detecting reagent for double-stranded nucleic acid, and a method of using it to detect double-stranded nucleic acid formed by hybridization with a probe, with absolutely no labeling of the target nucleic acid. The detecting reagent for double-stranded nucleic acid of the invention is characterized by comprising, in the same molecule, a naphthalenediimide group which is intercalatable into double-stranded nucleic acid and a &bgr;-diketone group capable of forming a lanthanoid metal complex.Type: GrantFiled: December 5, 2001Date of Patent: March 4, 2003Assignee: Waseda University and RikenInventors: Kazuko Matsumoto, Takahiko Nojima, Hideo Tashiro, Yasumitsu Kondoh, Shigeori Takenaka -
Detecting reagent for double-stranded nucleic acid and double-stranded nucleic acid detecting method
Publication number: 20020150929Abstract: The present invention provides a novel detecting reagent for double-stranded nucleic acid, and a method of using it to detect double-stranded nucleic acid formed by hybridization with a probe, with absolutely no labeling of the target nucleic acid.Type: ApplicationFiled: December 5, 2001Publication date: October 17, 2002Applicant: Waseda University and RIKENInventors: Kazuko Matsumoto, Takahiko Nojima, Hideo Tashiro, Yasumitsu Kondoh, Shigeori Takenaka -
Publication number: 20020081715Abstract: A biomolecule microarray support for spotting solutions containing probe biomolecules on the surface and immobilizing the probe biomolecules in the solutions to the surface, characterized in that a plurality of small-sized probe biomolecule-attachable spots are arrayed in a regular arrangement on the surface of the support. A biomolecule microarray, made by spotting solutions containing probe biomolecules on the biomolecule-attachable spots on the support and immobilizing the biomolecules to the spots, can be used for quantitative analysis because of uniform and unvarying numbers of probe biomolecules bound to the spots. It also makes possible high S/N ratio measurement because of prevented nonspecific adsorption of target biomolecules to the surface of the support other than the detection spots. The biomolecule microarray support is fabricated precisely and efficiently by the method of the present invention using the photolithography and etching technique.Type: ApplicationFiled: November 21, 2001Publication date: June 27, 2002Inventors: Hideo Tashiro, Yasumitsu Kondoh, Tokuji Kitsunai, Shigeori Takenaka, Kazuko Matsumoto, Takahiko Nojima
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Publication number: 20020045035Abstract: The present invention is to provide a ink-jet recording sheet of high ink absorptive property, high cockling resistance, high surface smoothness, low cost, and high image quality with incorporating specially designed void-forming absorptive layer whose absorptiveness is determined by a ratio of a Bristow Test value and a Cobb value.Type: ApplicationFiled: August 28, 2001Publication date: April 18, 2002Inventors: Takahiko Nojima, Keiji Ohbayashi
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Patent number: 6033831Abstract: A method for forming an image is disclosed. The method comprises the steps of exposing a photographic image forming medium by scanning by a light beam, and developing the photographic image forming medium to form an image,wherein the diameter and the intensity of light beam are controlled so that the diameter and the intensity satisfy the following relations (1), (2) and (3) within the range of the reflection optical density of an image to be formed after developing of from larger than 0.8 to 3.0;(1) the value of .alpha. is substantially the same as the value of .beta. when .alpha.=I.sub.d1 .times.D.sub.d1.sup.2 and .beta.=I'.sub.d1 .times.D.sub.0.8, and(2) D.sub.d1 <D.sub.0.8(3) (D.sub.d2 -D.sub.d1)/(d.sub.2 -.sub.1)<0wherein I.sub.d1 and D.sub.d1 are each intensity and diameter of light beam to form an image having relection optical density of d.sub.1 ; D.sub.0.8 is the diameter of light beam to form an image having density of 0.8; I'.sub.Type: GrantFiled: April 16, 1999Date of Patent: March 7, 2000Assignee: Konica CorporationInventors: Tsuyoshi Ikeda, Takahiko Nojima
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Patent number: 5362626Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support and having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains a gelatin comprising an iron ion of 0.5 ppm to 5 ppm and .alpha.-constituent having weight-average molecular weight of 80,000 to 120,000 in an amount of not less than 40% by weight of the gelatin.Type: GrantFiled: September 29, 1993Date of Patent: November 8, 1994Assignee: Konica CorporationInventors: Takaaki Kojima, Mitsuhiro Okumura, Takahiko Nojima
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Patent number: H1450Abstract: A silver halide light-sensitive photographic material is disclosed. The photographic material comprises a support and a blue-sensitive silver halide emulsion layer. The blue sensitive emulsion layer comprises a mixture of at least two kinds of silver halide emulsions each comprises silver chloride grains or silver chlorobromide grains containing not less than 90 mol % of silver chloride and are sensitized with a blue-sensitizing dye and have an average grain size of from 0.6 .mu.m to 0.9 .mu.m in terms of diameter of spherical grain. The average grain sizes of the two kinds of the emulsions are different from each other in the average grain size by 0.05 .mu.m or more. The coating amount of the blue-sensitizing dye contained in the blue-sensitive emulsion layer is not more than 7.0.times.10.sup.-4 g/m.sup.2.Type: GrantFiled: September 26, 1994Date of Patent: June 6, 1995Assignee: Konica CorporationInventors: Mitsuhiro Okumura, Takaaki Kojima, Takahiko Nojima