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).

  • Patent number: 11753423
    Abstract: 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: Grant
    Filed: March 8, 2022
    Date of Patent: September 12, 2023
    Assignees: MMAG Co. Ltd, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
  • Publication number: 20220194970
    Abstract: 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: Application
    Filed: March 8, 2022
    Publication date: June 23, 2022
    Inventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
  • Patent number: 11306110
    Abstract: 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: Grant
    Filed: July 5, 2018
    Date of Patent: April 19, 2022
    Assignees: MMAG Co., Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
  • Publication number: 20200266469
    Abstract: 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: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Applicants: HIROSHIMA UNIVERSITY, SHOWA DENKO K.K., TAIYO NIPPON SANSO CORPORATION, TOYOTA INDUSTRIES CORPORATION
    Inventors: Yoshitsugu KOJIMA, Takanori AOKI, Tadahiro FUJITANI, Takayoshi ADACHI, Hidehito KUBO
  • Publication number: 20200231612
    Abstract: 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: Application
    Filed: July 5, 2018
    Publication date: July 23, 2020
    Inventors: Hirotaka Nagata, Nobuto Minowa, Nozomu Nakanishi, Katsuya Shimura, Tadahiro Fujitani
  • Publication number: 20180323457
    Abstract: 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: Application
    Filed: December 7, 2016
    Publication date: November 8, 2018
    Applicants: HIROSHIMA UNIVERSITY, SHOWA DENKO K.K., TAIYO NIPPON SANSO CORPORATION, TOYOTA INDUSTRIES CORPORATION
    Inventors: Yoshitsugu KOJIMA, Takanori AOKI, Tadahiro FUJITANI, Takayoshi ADACHI, Hidehito KUBO
  • Patent number: 8979974
    Abstract: 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: Grant
    Filed: June 21, 2013
    Date of Patent: March 17, 2015
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
  • Publication number: 20130283978
    Abstract: 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: Application
    Filed: June 21, 2013
    Publication date: October 31, 2013
    Inventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
  • Patent number: 8568509
    Abstract: 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: Grant
    Filed: February 25, 2009
    Date of Patent: October 29, 2013
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Masakazu Date, Tadahiro Fujitani, Katsuhiro Nomura, Hiroyuki Kageyama
  • Publication number: 20110192255
    Abstract: 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: Application
    Filed: August 26, 2009
    Publication date: August 11, 2011
    Applicant: National Institute of Advanced Industrial Science and Technology
    Inventors: Katsuhiro Nomura, Hiroyuki Kageyama, Masakazu Date, Tadahiro Fujitani
  • Publication number: 20110017022
    Abstract: 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: Application
    Filed: February 25, 2009
    Publication date: January 27, 2011
    Inventors: Masakazu Date, Tadahiro Fujitani, Katsuhiro Nomura, Hiroyuki Kageyama