Patents by Inventor Yoichi Matsuzaki

Yoichi Matsuzaki 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: 10717038
    Abstract: Disclosed is an absorbing liquid for separating and capturing carbon dioxide from a carbon dioxide-containing gas, the absorbing liquid containing: at least one alkanolamine represented by formula (1) wherein R1 represents hydrogen or C1-4 alkyl, R2 and R3 are identical or different and each represent hydrogen or C1-3 alkyl, R1, R2, and R3 are not all hydrogen, and n is 1 or 2; a low-molecular-weight diol compound and/or glycerin; and water.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 21, 2020
    Assignees: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH, NIPPON STEEL CORPORATION
    Inventors: Firoz Alam Chowdhury, Tsuguhiro Kato, Yoichi Matsuzaki, Masami Onoda
  • Publication number: 20180078893
    Abstract: Disclosed is an absorbing liquid for separating and capturing carbon dioxide from a carbon dioxide-containing gas, the absorbing liquid containing: at least one alkanolamine represented by formula (1) wherein R1 represents hydrogen or C1-4 alkyl, R2 and R3 are identical or different and each represent hydrogen or C1-3 alkyl, R1, R2, and R3 are not all hydrogen, and n is 1 or 2; a low-molecular-weight diol compound and/or glycerin; and water.
    Type: Application
    Filed: March 18, 2016
    Publication date: March 22, 2018
    Inventors: Firoz Alam CHOWDHURY, Tsuguhiro KATO, Yoichi MATSUZAKI, Masami ONODA
  • Patent number: 9786925
    Abstract: A fuel cell comprised of a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode is comprised of a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material is comprised of a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25° C. and a relative humidity of 90% of 50 ml/g or more.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 10, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kenichiro Tadokoro, Takashi Iijima, Hiroshi Kajiro, Hideaki Sawada, Yoichi Matsuzaki
  • Patent number: 9636628
    Abstract: Disclosed is an aqueous solution for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, the aqueous solution containing an amino alcohol compound represented by Formula 1 and an amine compound represented by Formula 2, wherein R represents an alkyl group having 1 to 5 carbon atoms; and n represents 1 or 2, wherein X represents —NR1R2; Y represents —NR3R4; R1, R2, R3 and R4 may be the same or different, and each represents an alkyl group having 1 to 3 carbon atoms; and m represents an integer of 3 to 7.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 2, 2017
    Assignees: Research Institute of Innovative Technology for the Earth, Nippon Steel & Sumitomo Metal Corporation
    Inventors: Takayuki Higashii, Firoz A. Chowdhury, Kazuya Goto, Masami Onoda, Yoichi Matsuzaki
  • Publication number: 20160001220
    Abstract: Disclosed are a liquid for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, and a method for absorbing and recovering carbon dioxide using the liquid. The liquid comprises a secondary amine compound (A) represented by Formula (1) R—NH—(CH2)n—OH, a polyamine compound (B) represented by Formula (2) R1R2N—(X)m—NR3R4, and water (C), the content of the secondary amine compound (A) being 50 wt % or more.
    Type: Application
    Filed: February 14, 2014
    Publication date: January 7, 2016
    Inventors: Takayuki Higashii, Firoz Alam Chowdhury, Kazuya Goto, Yoichi Matsuzaki, Masami Onoda
  • Publication number: 20150007728
    Abstract: Disclosed is an aqueous solution for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, the aqueous solution containing an amino alcohol compound represented by Formula I and an amine compound represented by Formula 2, wherein R represents an alkyl group having 1 to 5 carbon atoms; and n represents 1 or 2, wherein X represents —NR1R2; Y represents —NR3R4; R1, R2, R3 and R4 may be the same or different, and each represents an alkyl group having 1 to 3 carbon atoms; and m represents an integer of 3 to 7.
    Type: Application
    Filed: February 7, 2013
    Publication date: January 8, 2015
    Inventors: Takayuki Higashii, Firoz A. Chowdhury, Kazuya Goto, Masami Onoda, Yoichi Matsuzaki
  • Publication number: 20130101493
    Abstract: Disclosed is an aqueous solution for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, the aqueous solution containing 50 to 70 wt % of a secondary amine compound represented by Formula (1): wherein R represents a straight- or branched-chain alkyl group having 3 to 5 carbon atoms; and a surfactant. Also disclosed is a method for absorbing and recovering carbon dioxide using the aqueous solution.
    Type: Application
    Filed: June 28, 2011
    Publication date: April 25, 2013
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Hiromichi Okabe, Firoz Alam Chowdhury, Kazuya Goto, Masami Onoda, Yoichi Matsuzaki
  • Patent number: 8304141
    Abstract: The present invention releases a method of producing a metal separator for a solid polymer fuel cell by stainless steel, titanium, or titanium alloy during which securing lower cost and mass producibility by using a material having a high workability to form a complicated shape by a high productivity, then using an inexpensive blast process to drive a conductive substance into the surface of the metal separator member, that is, provides a stainless steel, titanium, or titanium alloy solid polymer fuel cell separator comprised of stainless steel, titanium, or titanium alloy in the surface of which a low ion release conductive substance is buried, having an arithmetic mean roughness (Ra) of the separator surface of 0.5 to 5.0 ?m, having a 10-point mean roughness (Rz) of 3 to 20 ?m, having an average spacing of surface relief shapes (Sm) of 300 ?m or less, having values of a warp rate and twist rate of a separator of 0.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 6, 2012
    Assignee: Sintokogio Ltd.
    Inventors: Hiroshi Kihira, Michio Kaneko, Mitsuharu Yamagata, Koki Tanaka, Yoichi Ikematsu, Yoichi Matsuzaki, Kazuto Kawakami, Wataru Hisada, Suguru Suzuki
  • Publication number: 20110032537
    Abstract: The present invention releases a method of producing a metal separator for a solid polymer fuel cell by stainless steel, titanium, or titanium alloy during which securing lower cost and mass producibility by using a material having a high workability to form a complicated shape by a high productivity, then using an inexpensive blast process to drive a conductive substance into the surface of the metal separator member, that is, provides a stainless steel, titanium, or titanium alloy solid polymer fuel cell separator comprised of stainless steel, titanium, or titanium alloy in the surface of which a low ion release conductive substance is buried, having an arithmetic mean roughness (Ra) of the separator surface of 0.5 to 5.0 ?m, having a 10-point mean roughness (Rz) of 3 to 20 ?m, having an average spacing of surface relief shapes (Sm) of 300 ?m or less, having values of a warp rate and twist rate of a separator of 0.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 10, 2011
    Applicants: NIPPON STEEL CORPORATION, SINTOBRATOR, LTD.
    Inventors: Hiroshi Kihira, Michio Kaneko, Mitsuharu Yamagata, Koki Tanaka, Yoichi Ikematsu, Yoichi Matsuzaki, Kazuto Kawakami, Wataru Hisada, Suguru Suzuki
  • Patent number: 7807281
    Abstract: The present invention releases a method of producing a metal separator for a solid polymer fuel cell by stainless steel, titanium, or titanium alloy during which securing lower cost and mass producibility by using a material having a high workability to form a complicated shape by a high productivity, then using an inexpensive blast process to drive a conductive substance into the surface of the metal separator member, that is, provides a stainless steel, titanium, or titanium alloy solid polymer fuel cell separator comprised of stainless steel, titanium, or titanium alloy in the surface of which a low ion release conductive substance is buried, having an arithmetic mean roughness (Ra) of the separator surface of 0.5 to 5.0 ?m, having a 10-point mean roughness (Rz) of 3 to 20 ?m, having an average spacing of surface relief shapes (Sm) of 300 ?m or less, having values of a warp rate and twist rate of a separator of 0.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: October 5, 2010
    Assignees: Nippon Steel Corporation, Sintokogio Ltd.
    Inventors: Hiroshi Kihira, Michio Kaneko, Mitsuharu Yamagata, Koki Tanaka, Yoichi Ikematsu, Yoichi Matsuzaki, Kazuto Kawakami, Wataru Hisada, Suguru Suzuki
  • Publication number: 20090226785
    Abstract: The present invention releases a method of producing a metal separator for a solid polymer fuel cell by stainless steel, titanium, or titanium alloy during which securing lower cost and mass producibility by using a material having a high workability to form a complicated shape by a high productivity, then using an inexpensive blast process to drive a conductive substance into the surface of the metal separator member, that is, provides a stainless steel, titanium, or titanium alloy solid polymer fuel cell separator comprised of stainless steel, titanium, or titanium alloy in the surface of which a low ion release conductive substance is buried, having an arithmetic mean roughness (Ra) of the separator surface of 0.5 to 5.0 ?m, having a 10-point mean roughness (Rz) of 3 to 20 ?m, having an average spacing of surface relief shapes (Sm) of 300 ?m or less, having values of a warp rate and twist rate of a separator of 0.
    Type: Application
    Filed: June 22, 2006
    Publication date: September 10, 2009
    Applicants: NIPPON STEEL CORPORATION, SINTOBRATOR, LTD.
    Inventors: Hiroshi Kihira, Michio Kaneko, Mitsuharu Yamagata, Koki Tanaka, Yoichi Ikematsu, Yoichi Matsuzaki, Kazuoto Kawakami, Wataru Hisada, Suguru Suzuki
  • Publication number: 20070224479
    Abstract: A fuel cell comprised of a proton conductive electrolyte film sandwiched between a pair of catalyst layers, wherein the catalyst layer of at least the cathode is comprised of a mixture including a catalyst ingredient, an electrolytic material, and a carbon material, the carbon material is comprised of a catalyst-carrying carbon material carrying the catalyst ingredient and a gas-diffusing carbon material not carrying the catalyst ingredient, and the catalyst-carrying carbon material has an amount of adsorption of water vapor at 25° C. and a relative humidity of 90% of 50 ml/g or more.
    Type: Application
    Filed: April 22, 2005
    Publication date: September 27, 2007
    Inventors: Kenichiro Tadokoro, Takashi Iijima, Hiroshi Kajiro, Hideaki Sawada, Yoichi Matsuzaki
  • Patent number: 6737118
    Abstract: Silica-based low dielectric constant materials having three-dimensional network structures containing siloxane backbones which comprise SiO4 tetrahedron structural units, as well as their production and use. The materials can be applied as interlayer dielectrics for semiconductor elements and the like.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: May 18, 2004
    Assignee: Nippon Steel Corporation
    Inventors: Noriko Yamada, Toru Takahashi, Tadashi Sakon, Yoichi Matsuzaki, Atsushi Nogami, Shingo Katayama, Ikuko Shiina
  • Patent number: 6589644
    Abstract: Silica-based low dielectric constant materials having three-dimensional network structures containing siloxane backbones which comprise SiO4 tetrahedron structural units, as well as their production and use. The materials can be applied as interlayer dielectrics for semiconductor elements and the like.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: July 8, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Noriko Yamada, Toru Takahashi, Tadashi Sakon, Yoichi Matsuzaki, Atsushi Nogami, Shingo Katayama, Ikuko Shiina
  • Publication number: 20020156180
    Abstract: Silica-based low dielectric constant materials having three-dimensional network structures containing siloxane backbones which comprise Si04 tetrahedron structural units, as well as their production and use. The materials can be applied as interlayer dielectrics for semiconductor elements and the like.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 24, 2002
    Inventors: Noriko Yamada, Toru Takahashi, Tadashi Sakon, Yoichi Matsuzaki, Atsushi Nogami, Shingo Katayama, Ikuko Shiina