Patents by Inventor Masami Murakami

Masami Murakami 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: 11772072
    Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: October 3, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masami Murakami, Naoya Takahashi, Ryo Niishiro
  • Patent number: 11759768
    Abstract: A porous formed body (Y) including a porous formed body (X) that satisfies the following (x-1) to (x-3), and an alkali metal carbonate or an alkali metal bicarbonate, in which a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X), and a production method thereof, an ?-olefin dimerization catalyst and a production method thereof, and a method of producing an ?-olefin dimer: requirement (x-1): a volume of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from 0.10 mL/g to 1.00 mL/g; requirement (x-2): a median pore diameter of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from more than 0.01 ?m to 10.0 ?m; and requirement (x-3): a crushing strength is from 0.7 kgf to 15.0 kgf.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 19, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Ryo Niishiro, Jun Kawahara, Masami Murakami
  • Publication number: 20220118426
    Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Masami MURAKAMI, Naoya TAKAHASHI, Ryo NIISHIRO
  • Patent number: 11247194
    Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: February 15, 2022
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masami Murakami, Naoya Takahashi, Ryo Niishiro
  • Patent number: 11072527
    Abstract: The method for producing chlorine by oxidation of hydrogen chloride with oxygen in the presence of a catalyst in a fixed-bed reactor, wherein [I] a material containing hydrogen chloride and oxygen is allowed to contact a catalyst in a temperature range of 280 to 370° C., and [II] the material containing hydrogen chloride and oxygen has an oxygen concentration of 45 to 75 vol %.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 27, 2021
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Masami Murakami, Hideharu Kuwamoto, Kenji Iwata
  • Publication number: 20210113991
    Abstract: Provided is a method of producing a porous molded body, the method including: the step of obtaining a molded body by molding a raw material that contains from 1 part by mass to 100 parts by mass of a bicarbonate compound (A) represented by AHCO3 (wherein, A represents Na or K) and from 0 parts by mass to 99 parts by mass of a compound (B) represented by BnX (wherein, B represents Na or K; X represents CO3, SO4, SiO3, F, Cl, or Br; and n represents an integer of 1 or 2 as determined by the valence of X) (provided that a total amount of (A) and (B) is 100 parts by mass); and the step of obtaining a porous molded body by performing a heat treatment of the molded body in a temperature range of from 100° C. to 500° C. and an atmosphere that contains water vapor in an amount of from 1.0 g/m3 to 750,000 g/m3 and thereby thermally decomposing not less than 90% by mass of the bicarbonate compound (A).
    Type: Application
    Filed: December 21, 2017
    Publication date: April 22, 2021
    Inventors: Masami MURAKAMI, Naoya TAKAHASHI, Ryo NIISHIRO
  • Publication number: 20210016248
    Abstract: A porous formed body (Y) including a porous formed body (X) that satisfies the following (x-1) to (x-3), and an alkali metal carbonate or an alkali metal bicarbonate, in which a content of the alkali metal carbonate or the alkali metal bicarbonate is in a range of from 1 part by mass to 230 parts by mass, with respect to 100 parts by mass of the porous formed body (X), and a production method thereof, an ?-olefin dimerization catalyst and a production method thereof, and a method of producing an ?-olefin dimer: requirement (x-1): a volume of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from 0.10 mL/g to 1.00 mL/g; requirement (x-2): a median pore diameter of pores with a pore diameter in a range of from 0.01 ?m to 100 ?m is from more than 0.01 ?m to 10.0 ?m; and requirement (x-3): a crushing strength is from 0.7 kgf to 15.0 kgf.
    Type: Application
    Filed: March 28, 2019
    Publication date: January 21, 2021
    Inventors: Ryo NIISHIRO, Jun KAWAHARA, Masami MURAKAMI
  • Patent number: 10500570
    Abstract: Provided is a formed body containing at least one carbonate compound (A1) selected from Na2CO3 or K2CO3, the formed body having a volume of pores with a pore diameter of from 0.05 ?m to 10 ?m of from 0.10 mL/g to 0.30 mL/g and a crushing strength of from 1.8 kgf to 10.0 kgf.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: December 10, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shinichiro Ichikawa, Naoya Takahashi, Masami Murakami
  • Publication number: 20190292049
    Abstract: The method for producing chlorine by oxidation of hydrogen chloride with oxygen in the presence of a catalyst in a fixed-bed reactor, wherein [I] a material containing hydrogen chloride and oxygen is allowed to contact a catalyst in a temperature range of 280 to 370° C., and [II] the material containing hydrogen chloride and oxygen has an oxygen concentration of 45 to 75 vol %.
    Type: Application
    Filed: November 29, 2017
    Publication date: September 26, 2019
    Inventors: Masami MURAKAMI, Hideharu KUWAMOTO, Kenji IWATA
  • Publication number: 20160296919
    Abstract: Provided is a formed body containing at least one carbonate compound (A1) selected from Na2CO3 or K2CO3, the formed body having a volume of pores with a pore diameter of from 0.05 ?m to 10 ?m of from 0.10 mL/g to 0.30 mL/g and a crushing strength of from 1.8 kgf to 10.0 kgf.
    Type: Application
    Filed: December 10, 2014
    Publication date: October 13, 2016
    Inventors: Shinichiro ICHIKAWA, Naoya TAKAHASHI, Masami MURAKAMI
  • Patent number: 9314774
    Abstract: [Problem] The present invention is to provide a catalyst used for a process for preparing methanol from carbon dioxide and hydrogen and the catalyst has high activity and excellent stability with the passage of time in reactivity. [Solution] The catalyst comprises copper, zinc, aluminum and silicon, and has a molar ratio of zinc to copper of 0.5 to 0.7, a molar ratio of silicon to copper of 0.015 to 0.05, a maximum intensity ratio of a peak derived from zinc to a peak derived from copper of not more than 0.25 and a half-value width (2?) of the peak derived from copper of 0.75 to 2.5. The process for producing methanol comprises using the catalyst.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 19, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Yuya Goto, Naoya Takahashi, Masaki Yoshinaga, Masami Murakami
  • Patent number: 9108845
    Abstract: The invention provides a chlorine production catalyst that shows excellent reaction activity in the oxidation reaction of hydrogen chloride with oxygen into chlorine, is inexpensive and can be supplied stably, and is suited for use in a fluidized-bed reactor. The invention also provides a chlorine production process using the catalyst. The chlorine production catalyst of the invention includes spherical particles containing copper element (A), an alkali metal element (B) and a lanthanoid element (C) and having an average sphericity of not less than 0.80. The lanthanoid element (C) has a bond dissociation energy with oxygen at 298 K of 100 to 185 kcal/mol. The content of the copper element (A) in the catalyst is 0.3 wt % to 4.5 wt %.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: August 18, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Takashi Nabeta, Nobuhiko Horiuchi, Kenichi Sugimoto, Kenji Iwata, Masami Murakami
  • Publication number: 20150111975
    Abstract: [Problem] The present invention is to provide a catalyst used for a process for preparing methanol from carbon dioxide and hydrogen and the catalyst has high activity and excellent stability with the passage of time in reactivity. [Solution] The catalyst comprises copper, zinc, aluminum and silicon, and has a molar ratio of zinc to copper of 0.5 to 0.7, a molar ratio of silicon to copper of 0.015 to 0.05, a maximum intensity ratio of a peak derived from zinc to a peak derived from copper of not more than 0.25 and a half-value width (2?) of the peak derived from copper of 0.75 to 2.5. The process for producing methanol comprises using the catalyst.
    Type: Application
    Filed: June 3, 2013
    Publication date: April 23, 2015
    Inventors: Yuya Goto, Naoya Takahashi, Masaki Yoshinaga, Masami Murakami
  • Patent number: 8623782
    Abstract: There is provided by the present invention a process for preparing a copper-based catalyst having good catalytic activity, markedly excellent durability and good reproducibility. The process for preparing a copper-based catalyst of the invention is a process for preparing a catalyst composed of metal oxides containing copper oxide as an essential component and is characterized by comprising the following steps: (1) a step of bringing an acidic metal salt solution containing copper and a precipitant solution into contact with each other to obtain a slurry solution containing a precipitate of a catalyst precursor, and (2) a step of continuously bringing the slurry solution and a wash liquid into contact with each other to wash the precipitate, with substantially keeping the suspended state.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: January 7, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masami Murakami, Ken Maeda, Yuya Goto
  • Patent number: 8408381
    Abstract: A carriage-type conveying apparatus with a workpiece support base and an elevating drive has a passive shaft interlocked with the elevating drive and a lock to prevent descent of the workpiece support base A power source carriage capable of traveling synchronously with the conveying carriage is aside of a traveling path of the conveying carriage at a workpiece support height changing position so as to be reciprocable along the traveling path. The power source carriage has a transmission shaft driven by a power source and a separable interlock to interlock the passive shaft and a transmission shaft with each other.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: April 2, 2013
    Assignees: Daifuku Co., Ltd., Daifuku (China) Co., Ltd.
    Inventors: Masami Murakami, Jianguo Wang
  • Publication number: 20130015039
    Abstract: A carriage-type conveying apparatus with a workpiece support base and an elevating drive has a passive shaft interlocked with the elevating drive and a lock to prevent descent of the workpiece support base A power source carriage capable of traveling synchronously with the conveying carriage is aside of a traveling path of the conveying carriage at a workpiece support height changing position so as to be reciprocable along the traveling path. The power source carriage has a transmission shaft driven by a power source and a separable interlock to interlock the passive shaft and a transmission shaft with each other.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 17, 2013
    Inventors: Masami Murakami, Jianguo Wang
  • Publication number: 20120258856
    Abstract: A catalyst has high activity and is suitable for use in producing chlorine by oxidizing hydrogen chloride with oxygen. The catalyst includes copper, an alkali metal and a rare earth and has pores of which pores having a diameter of 5 to 15 nm have a pore volume of 0.4 to 2.0 ml/g.
    Type: Application
    Filed: June 18, 2012
    Publication date: October 11, 2012
    Inventors: Nobuhiko HORIUCHI, Kenichi SUGIMOTO, Masami MURAKAMI, Kenji IWATA
  • Patent number: 8222178
    Abstract: A catalyst has high activity and is suitable for use in producing chlorine by oxidizing hydrogen chloride with oxygen. The catalyst includes copper, an alkali metal and a rare earth and has pores of which pores having a diameter of 5 to 15 nm have a pore volume of 0.4 to 2.0 ml/g.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: July 17, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Nobuhiko Horiuchi, Kenichi Sugimoto, Masami Murakami, Kenji Iwata
  • Publication number: 20120009117
    Abstract: The invention provides a chlorine production catalyst that shows excellent reaction activity in the oxidation reaction of hydrogen chloride with oxygen into chlorine, is inexpensive and can be supplied stably, and is suited for use in a fluidized-bed reactor. The invention also provides a chlorine production process using the catalyst. The chlorine production catalyst of the invention includes spherical particles containing copper element (A), an alkali metal element (B) and a lanthanoid element (C) and having an average sphericity of not less than 0.80. The lanthanoid element (C) has a bond dissociation energy with oxygen at 298 K of 100 to 185 kcal/mol. The content of the copper element (A) in the catalyst is 0.3 wt % to 4.5 wt %.
    Type: Application
    Filed: March 25, 2010
    Publication date: January 12, 2012
    Inventors: Takashi Nabeta, Nobuhiko Horiuchi, Kenichi Sugimoto, Kenji Iwata, Masami Murakami
  • Publication number: 20110301022
    Abstract: There is provided by the present invention a process for preparing a copper-based catalyst having good catalytic activity, markedly excellent durability and good reproducibility. The process for preparing a copper-based catalyst of the invention is a process for preparing a catalyst composed of metal oxides containing copper oxide as an essential component and is characterized by comprising the following steps: (1) a step of bringing an acidic metal salt solution containing copper and a precipitant solution into contact with each other to obtain a slurry solution containing a precipitate of a catalyst precursor, and (2) a step of continuously bringing the slurry solution and a wash liquid into contact with each other to wash the precipitate, with substantially keeping the suspended state.
    Type: Application
    Filed: February 15, 2010
    Publication date: December 8, 2011
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Masami Murakami, Ken Maeda, Yuya Goto