Patents by Inventor Hideo Nitta
Hideo Nitta 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: 20240087571Abstract: To take security into account and increase user friendliness, an information processing device includes: an input unit to which information is input; an extracting unit extracting predetermined words from the information input to the input unit; a classifying unit classifying the words extracted by the extracting unit into first words and second words; and a converting unit converting the first words by a first conversion method and converting the second words by a second conversion method, the second conversion method being different from the first conversion method.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Applicant: NIKON CORPORATIONInventors: Hideo HOSHUYAMA, Hiroyuki AKIYA, Kazuya UMEYAMA, Keiichi NITTA, Hiroki UWAI, Masakazu SEKIGUCHI
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Patent number: 10562785Abstract: A fluorescent material has a composition represented by (Gd1??????R?Ce?Tb?)3+a(Al1?u?vGauScv)5?bO12, wherein: R is at least one of Y and Lu; a, b, ?, ?, ?, u and v satisfy ranges below: 0?a ?0.1, 0?b?0.1, 0???0.8, 0.0003???0.005, 0.02???0.2, 0.27?u?0.75, and 0?v?0.02; a relative density is 99% or more; and an effective atomic number is 35 or more and 60 or less.Type: GrantFiled: September 30, 2015Date of Patent: February 18, 2020Assignee: HITACHI METALS, LTD.Inventor: Hideo Nitta
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Patent number: 10207957Abstract: A method for producing a ceramic scintillator comprising the steps of mixing a rare earth compound with sulfuric acid and/or sulfate to cause their reaction to obtain a product; calcining the product to obtain calcined powder; reducing the calcined powder to obtain rare earth oxysulfide powder; molding the rare earth oxysulfide powder to obtain a green body; and sintering the green body; a pulverization step being conducted to adjust the particle sizes of the product and/or the calcined powder at least before the reduction step.Type: GrantFiled: September 10, 2014Date of Patent: February 19, 2019Assignee: HITACHI METALS, LTD.Inventors: Shinsuke Terazawa, Hideo Nitta
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Patent number: 10053380Abstract: There is provided an electrolysis device configured to use unpurified water containing a small amount of ions of alkaline earth metal such as Ca and Mg as raw water, and to have a structure of supplying the raw water to a cathode chamber in which deposition of scale of the alkaline earth metal on the surface of a cathode provided in the cathode chamber can be prevented. The electrolysis device and the apparatus for producing electrolyzed ozone water are configured by an electrolysis cell formed in a manner that a membrane-electrode assembly is configured by a solid polymer electrolyte separation membrane formed by a cation exchange membrane, and an anode and a cathode which are respectively adhered to both surfaces of the solid polymer electrolyte separation membrane, and the membrane-electrode assembly is compressed from both surfaces thereof, and thus the solid polymer electrolyte separation membrane, the anode, and the cathode are adhered to each other.Type: GrantFiled: June 30, 2016Date of Patent: August 21, 2018Assignees: AQUAECOS LTD., DE NORA PERMELEC LTDInventors: Hideo Nitta, Masashi Hosonuma
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Patent number: 9896623Abstract: A production method of rare earth oxysulfide comprising a step of mixing a rare earth compound with sulfuric acid and/or sulfate in such a proportion that sulfate ions are 0.75-1.75 mol to 1 mol of a rare earth element, thereby preparing a reaction solution to obtain a product; a step of calcining the product to obtain calcined powder; and a step of reducing the calcined powder to obtain rare earth oxysulfide.Type: GrantFiled: September 10, 2014Date of Patent: February 20, 2018Assignee: HITACHI METALS, LTD.Inventors: Shinsuke Terazawa, Hideo Nitta
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Patent number: 9899113Abstract: A method for producing a scintillator dual array comprising the steps of bonding first and second scintillator bar arrays having different sensitivity distributions of X-ray energy detection and pluralities of parallel grooves with equal gaps, via an intermediate resin layer, such that both scintillator bars are aligned in a lamination direction, cutting the integrally bonded bar array in a direction crossing the scintillator bars, and coating one cut surface of each bonded bar array piece with a resin.Type: GrantFiled: March 7, 2013Date of Patent: February 20, 2018Assignee: HITACHI METALS, LTD.Inventors: Hideo Nitta, Akira Shigekawa, Satoshi Shiota, Hiroyuki Nagatomo
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Publication number: 20170334750Abstract: There is provided an electrolysis device configured to use unpurified water containing a small amount of ions of alkaline earth metal such as Ca and Mg as raw water, and to have a structure of supplying the raw water to a cathode chamber in which deposition of scale of the alkaline earth metal on the surface of a cathode provided in the cathode chamber can be prevented. The electrolysis device and the apparatus for producing electrolyzed ozone water are configured by an electrolysis cell formed in a manner that a membrane-electrode assembly is configured by a solid polymer electrolyte separation membrane formed by a cation exchange membrane, and an anode and a cathode which are respectively adhered to both surfaces of the solid polymer electrolyte separation membrane, and the membrane-electrode assembly is compressed from both surfaces thereof, and thus the solid polymer electrolyte separation membrane, the anode, and the cathode are adhered to each other.Type: ApplicationFiled: June 30, 2016Publication date: November 23, 2017Applicant: AQUAECOS LTD.Inventors: Hideo NITTA, Masashi HOSONUMA
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Publication number: 20170217784Abstract: A fluorescent material has a composition represented by (Gd1??????R?Ce?Tb?)3+a(Al1?u?vGauScv)5?bO12, wherein: R is at least one of Y and Lu; a, b, ?, ?, ?, u and v satisfy ranges below: 0?a?0.1, 0?b?0.1, 0???0.8, 0.0003???0.005, 0.02???0.2, 0.27?u?0.75, and 0?v?0.02; a relative density is 99% or more; and an effective atomic number is 35 or more and 60 or less.Type: ApplicationFiled: September 30, 2015Publication date: August 3, 2017Inventor: Hideo NITTA
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Patent number: 9702985Abstract: A method for producing a radiation detector comprising pluralities of first and second cells constituted by scintillators having different compositions for different detection sensitivity distributions of radiation energy, pluralities of light-receiving elements, and reflective layers, comprising a step of forming first and second cell arrays having at least m×n first and second cells via reflective layers from first and second scintillator plates, wherein m and n are natural numbers of 2 or more, which may be the same or different; a step of cutting the first and second cell arrays to obtain first and second single arrays each having at least m×1 first and second cells via reflective layers; a step of aligning the first and second single arrays with a light-receiving element array having at least m×2 light-receiving elements; and a step of adhering the first and second single arrays to the light-receiving element array.Type: GrantFiled: October 23, 2013Date of Patent: July 11, 2017Assignee: HITACHI METALS, LTD.Inventors: Hideo Nitta, Akira Shigekawa
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Patent number: 9575188Abstract: A method for producing a scintillator array comprising fixing a scintillator substrate to a support plate via a double-coated adhesive sheet, at least an adhesive surface thereof to be in contact with the scintillator substrate being thermally peelable; providing the scintillator substrate with lattice-patterned grooves to form pluralities of scintillator cells; filling gaps between the scintillator cells with a liquid hardening reflector resin; curing the liquid hardening reflector resin by heating to form a resin-hardened scintillator cell body; and then peeling the double-coated adhesive sheet from the resin-hardened scintillator cell body by heating.Type: GrantFiled: March 14, 2013Date of Patent: February 21, 2017Assignee: HITACHI METALS, LTD.Inventor: Hideo Nitta
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Publication number: 20160251573Abstract: A method for producing a ceramic scintillator comprising the steps of mixing a rare earth compound with sulfuric acid and/or sulfate to cause their reaction to obtain a product; calcining the product to obtain calcined powder; reducing the calcined powder to obtain rare earth oxysulfide powder; molding the rare earth oxysulfide powder to obtain a green body; and sintering the green body; a pulverization step being conducted to adjust the particle sizes of the product and/or the calcined powder at least before the reduction step.Type: ApplicationFiled: September 10, 2014Publication date: September 1, 2016Applicant: HITACHI METALS, LTD.Inventors: Shinsuke TERAZAWA, Hideo NITTA
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Publication number: 20160230085Abstract: A production method of rare earth oxysulfide comprising a step of mixing a rare earth compound with sulfuric acid and/or sulfate in such a proportion that sulfate ions are 0.75-1.75 mol to 1 mol of a rare earth element, thereby preparing a reaction solution to obtain a product; a step of calcining the product to obtain calcined powder; and a step of reducing the calcined powder to obtain rare earth oxysulfide.Type: ApplicationFiled: September 10, 2014Publication date: August 11, 2016Applicant: HITACHI METALS, LTD.Inventors: Shinsuke TERAZAWA, Hideo NITTA
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Publication number: 20150268357Abstract: A method for producing a radiation detector comprising pluralities of first and second cells constituted by scintillators having different compositions for different detection sensitivity distributions of radiation energy, pluralities of light-receiving elements, and reflective layers, comprising a step of forming first and second cell arrays having at least m×n first and second cells via reflective layers from first and second scintillator plates, wherein m and n are natural numbers of 2 or more, which may be the same or different; a step of cutting the first and second cell arrays to obtain first and second single arrays each having at least m×1 first and second cells via reflective layers; a step of aligning the first and second single arrays with a light-receiving element array having at least m×2 light-receiving elements; and a step of adhering the first and second single arrays to the light-receiving element array.Type: ApplicationFiled: October 23, 2013Publication date: September 24, 2015Applicant: HITACHI METALS, LTD.Inventors: Hideo Nitta, Akira Shigekawa
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Patent number: 9046615Abstract: A method for producing a dual-array-type scintillator array, comprising forming first and second scintillator sticks having cell portions by providing first and second scintillator substrates with pluralities of grooves and cutting them in directions perpendicular to the grooves; arranging and fixing plural sets of the first and second scintillator sticks with the cell portions downward on a support plate via spacers; removing base portions from the first and second scintillator sticks by grinding to form first and second cell arrays comprising the first and second cells each arranged in line; forming an integral resin-cured assembly by filling the grooves and gaps of the first and second cell arrays with a resin for a reflector, curing the resin, and then removing the support plate; and cutting a resin layer between the first and second cell arrays in adjacent sets to divide the resin-cured assembly to sets of the first and second cell arrays.Type: GrantFiled: April 24, 2012Date of Patent: June 2, 2015Assignee: HITACHI METALS, LTD.Inventors: Akira Shigekawa, Hideo Nitta, Satoshi Shiota
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Publication number: 20150059963Abstract: A method for producing a scintillator array comprising fixing a scintillator substrate to a support plate via a double-coated adhesive sheet, at least an adhesive surface thereof to be in contact with the scintillator substrate being thermally peelable; providing the scintillator substrate with lattice-patterned grooves to form pluralities of scintillator cells; filling gaps between the scintillator cells with a liquid hardening reflector resin; curing the liquid hardening reflector resin by heating to form a resin-hardened scintillator cell body; and then peeling the double-coated adhesive sheet from the resin-hardened scintillator cell body by heating.Type: ApplicationFiled: March 14, 2013Publication date: March 5, 2015Applicant: HITACHI METALS, LTD.Inventor: Hideo Nitta
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Publication number: 20150033541Abstract: A method for producing a scintillator dual array comprising the steps of bonding first and second scintillator bar arrays having different sensitivity distributions of X-ray energy detection and pluralities of parallel grooves with equal gaps, via an intermediate resin layer, such that both scintillator bars are aligned in a lamination direction, cutting the integrally bonded bar array in a direction crossing the scintillator bars, and coating one cut surface of each bonded bar array piece with a resin.Type: ApplicationFiled: March 7, 2013Publication date: February 5, 2015Applicant: HITACHI METALS, LTD.Inventors: Hideo Nitta, Akira Shigekawa, Satoshi Shiota, Hiroyuki Nagatomo
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Publication number: 20130125385Abstract: A method for producing a dual-array-type scintillator array, comprising forming first and second scintillator sticks having cell portions by providing first and second scintillator substrates with pluralities of grooves and cutting them in directions perpendicular to the grooves; arranging and fixing plural sets of the first and second scintillator sticks with the cell portions downward on a support plate via spacers; removing base portions from the first and second scintillator sticks by grinding to form first and second cell arrays comprising the first and second cells each arranged in line; forming an integral resin-cured assembly by filling the grooves and gaps of the first and second cell arrays with a resin for a reflector, curing the resin, and then removing the support plate; and cutting a resin layer between the first and second cell arrays in adjacent sets to divide the resin-cured assembly to sets of the first and second cell arrays.Type: ApplicationFiled: April 24, 2012Publication date: May 23, 2013Applicant: HITACHI METALS, LTD.Inventors: Akira Shigekawa, Hideo Nitta, Satoshi Shiota
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Publication number: 20130032491Abstract: This invention is to provide a membrane-electrode assembly, an electrolytic cell using the same, a method and an apparatus for producing ozone water, a method for disinfection and a method for wastewater or waste fluid treatment, by using which allow electrolysis reaction products or decomposition products to be produced at a high efficiency, channel pressure drop to be minimized, and the apparatus to be designed compact in size without sacrificing the production capacity. This invention relates to a membrane-electrode assembly, comprising an anode having a plurality of through-holes of 0.1 mm or more in diameter; a cathode having a plurality of through-holes of 0.1 mm or more in diameter at the same sites as in the anode; and a solid polymer electrolyte membrane coated on one face or the entire face of at least one of the anode and the cathode with the through-holes being maintained, wherein the anode, the solid polymer electrolyte membrane and the cathode are tightly adhered.Type: ApplicationFiled: November 29, 2010Publication date: February 7, 2013Applicants: PERMELEC ELECTRODE LTD., AQUAECOS LTD.Inventors: Hideo Nitta, Masashi Hosonuma
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Publication number: 20130026096Abstract: This invention is to provide a membrane-electrode assembly, an electrolytic cell using the same, a method and an apparatus for producing ozone water, a method for disinfection and a method for wastewater or waste fluid treatment, by using which electrolysis reaction products or decomposition products obtained at the anode are produced at a high efficiency; channel pressure drop is minimized; and the apparatus is designed in compact size without sacrificing the production capacity. This invention relates to a membrane-electrode assembly comprising a solid polymer electrolyte membrane having a cation exchange membrane, an anode and a cathode tightly adhered to the respective surfaces of the solid polymer electrolyte membrane, with a plurality of through-holes with 0.Type: ApplicationFiled: November 29, 2010Publication date: January 31, 2013Applicants: PERMELEC ELECTRODE LTD., AQUAECOS LTD.Inventors: Hideo Nitta, Masashi Hosonuma
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Patent number: 7932499Abstract: Disclosed is a multi-channel array radiation detector that can provide high-definition and high-resolution CT photo-images. The radiation detector has semiconductor photo-detecting elements arranged lengthwise and breadth-wise in a lattice manner and scintillator elements arranged on them one-to-one. The scintillator elements have thin metal light-reflecting material layers formed on side surfaces of the scintillator elements, and a radiation shielding material layer composed of resin blended with heavy metal element particles is filled in between adjacent metal light-reflecting material layers.Type: GrantFiled: March 13, 2006Date of Patent: April 26, 2011Assignee: Hitachi Metals, Ltd.Inventors: Shinji Furuichi, Hideo Nitta