Patents by Inventor Tadahiro Fujitani
Tadahiro Fujitani 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: 11753423Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.Type: GrantFiled: March 8, 2022Date of Patent: September 12, 2023Assignees: MMAG Co. Ltd, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
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Publication number: 20220194970Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.Type: ApplicationFiled: March 8, 2022Publication date: June 23, 2022Inventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
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Patent number: 11306110Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.Type: GrantFiled: July 5, 2018Date of Patent: April 19, 2022Assignees: MMAG Co., Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
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Publication number: 20200266469Abstract: An ammonia removal material to be used for obtaining a mixed gas (B) having an ammonia concentration of 0.1 mol ppm or less from a mixed gas (A) including hydrogen, nitrogen, and ammonia and having an ammonia concentration exceeding 0.1 mol ppm, the ammonia removal material containing zeolite having a pore size of 0.5 nm or more and 2.0 nm or less, a method for removing ammonia from the mixed gas using the ammonia removal material, and a method for producing a hydrogen gas for a fuel cell automobile, the method including the method for removing ammonia.Type: ApplicationFiled: May 4, 2020Publication date: August 20, 2020Applicants: HIROSHIMA UNIVERSITY, SHOWA DENKO K.K., TAIYO NIPPON SANSO CORPORATION, TOYOTA INDUSTRIES CORPORATIONInventors: Yoshitsugu KOJIMA, Takanori AOKI, Tadahiro FUJITANI, Takayoshi ADACHI, Hidehito KUBO
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Publication number: 20200231612Abstract: A method for producing methyldichlorophosphane, the method including: allowing methane and phosphorus trichloride to react in the presence of an additive using a metal compound, or a metal compound carried on a carrier, or both thereof.Type: ApplicationFiled: July 5, 2018Publication date: July 23, 2020Inventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
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Publication number: 20180323457Abstract: An ammonia removal material to be used for obtaining a mixed gas (B) having an ammonia concentration of 0.1 mol ppm or less from a mixed gas (A) including hydrogen, nitrogen, and ammonia and having an ammonia concentration exceeding 0.1 mol ppm, the ammonia removal material containing zeolite having a pore size of 0.5 nm or more and 2.0 nm or less, a method for removing ammonia from the mixed gas using the ammonia removal material, and a method for producing a hydrogen gas for a fuel cell automobile, the method including the method for removing ammonia.Type: ApplicationFiled: December 7, 2016Publication date: November 8, 2018Applicants: HIROSHIMA UNIVERSITY, SHOWA DENKO K.K., TAIYO NIPPON SANSO CORPORATION, TOYOTA INDUSTRIES CORPORATIONInventors: Yoshitsugu KOJIMA, Takanori AOKI, Tadahiro FUJITANI, Takayoshi ADACHI, Hidehito KUBO
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Patent number: 8979974Abstract: The present invention provides a composition for collecting a metal component from a metal component-containing material, the composition containing a compound containing at least one element selected from the group consisting of lanthanoid elements and elements in group 2 of the periodic table, and a compound containing at least one element selected from the group consisting of elements in groups 3, 4, 12, and 13 of the periodic table and transition metal elements in the 4th period of the periodic table. The present invention further provides a method for collecting a metal component using this composition. With the use of the composition of the present invention, a metal component can be easily and efficiently collected from a material containing a highly useful metal component such as noble or rare metal.Type: GrantFiled: June 21, 2013Date of Patent: March 17, 2015Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
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Publication number: 20130283978Abstract: The present invention provides a composition for collecting a metal component from a metal component-containing material, the composition containing a compound containing at least one element selected from the group consisting of lanthanoid elements and elements in group 2 of the periodic table, and a compound containing at least one element selected from the group consisting of elements in groups 3, 4, 12, and 13 of the periodic table and transition metal elements in the 4th period of the periodic table. The present invention further provides a method for collecting a metal component using this composition. With the use of the composition of the present invention, a metal component can be easily and efficiently collected from a material containing a highly useful metal component such as noble or rare metal.Type: ApplicationFiled: June 21, 2013Publication date: October 31, 2013Inventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
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Patent number: 8568509Abstract: A metal storage material, containing a perovskite-type composite oxide of formula (1), which is a material to stores a metal component of a metal-containing material: ABHaO3-b??Formula (1) in which A is at least one selected from lanthanoid elements and Group 2 elements of the periodic table, and B is at least one selected from Groups 3, 4, and 13 elements, and transition metal elements of the fourth period of the periodic table; a and b are quantities of hydrogen and oxygen vacancies, within the range of: 0?a?1.0, 0?b?0.5, respectively; and a method of recovering a metal, containing the steps of: heating the metal-containing material, in the presence of the perovskite-type composite oxide; dissolving, in an acid, the composite oxide which stores a metal, to give an eluate of the metal; and recovering the metal, from the eluate.Type: GrantFiled: February 25, 2009Date of Patent: October 29, 2013Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Masakazu Date, Tadahiro Fujitani, Katsuhiro Nomura, Hiroyuki Kageyama
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Publication number: 20110192255Abstract: The present invention provides a composition for collecting a metal component from a metal component-containing material, the composition containing a compound containing at least one element selected from the group consisting of lanthanoid elements and elements in group 2 of the periodic table, and a compound containing at least one element selected from the group consisting of elements in groups 3, 4, 12, and 13 of the periodic table and transition metal elements in the 4th period of the periodic table. The present invention further provides a method for collecting a metal component using this composition. With the use of the composition of the present invention, a metal component can be easily and efficiently collected from a material containing a highly useful metal component such as noble or rare metal.Type: ApplicationFiled: August 26, 2009Publication date: August 11, 2011Applicant: National Institute of Advanced Industrial Science and TechnologyInventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
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Publication number: 20110017022Abstract: A metal storage material, containing a perovskite-type composite oxide of formula (1), which is a material to stores a metal component of a metal-containing material: Formula (1) ABHaO3?b in which A is at least one selected from lanthanoid elements and Group 2 elements of the periodic table, and B is at least one selected from Groups 3, 4, and 13 elements, and transition metal elements of the fourth period of the periodic table; a and b are quantities of hydrogen and oxygen vacancies, within the range of: 0?a?1.0, 0?b?0.5, respectively; and a method of recovering a metal, containing the steps of: heating the metal-containing material, in the presence of the perovskite-type composite oxide; dissolving, in an acid, the composite oxide which stores a metal, to give an eluate of the metal; and recovering the metal, from the eluate.Type: ApplicationFiled: February 25, 2009Publication date: January 27, 2011Inventors: Masakazu Date, Tadahiro Fujitani, Katsuhiro Nomura, Hiroyuki Kageyama