Patents by Inventor Kimihito Suzuki

Kimihito Suzuki 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: 10584092
    Abstract: Provided is a method for regenerating an aromatic amide compound into a corresponding aromatic nitrile compound, the method realizing a dehydration reaction of providing a target compound selectively at a high yield with generation of a by-product being suppressed. Also provided is a method for producing an aromatic nitrile compound that decreases the number of steps of dehydration reaction and significantly improves the reaction speed at a pressure close to normal pressure. Furthermore, the above-described production method is applied to a carbonate ester production method to provide a method for producing carbonate ester efficiently. The above-described objects are achieved by a method for producing an aromatic nitrile compound including a dehydration reaction of dehydrating an aromatic amide compound, in which the dehydration reaction uses diphenylether.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 10, 2020
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., TOHOKU UNIVERSITY, NIPPON STEEL CORPORATION, NIPPON STEEL ENGINEERING CO., LTD.
    Inventors: Yousuke Shinkai, Hongyu Liu, Hidefumi Harada, Yoshinori Isahaya, Keiichi Tomishige, Yoshinao Nakagawa, Masazumi Tamura, Kimihito Suzuki, Yasuki Namiki
  • Publication number: 20190185408
    Abstract: Provided is a method for regenerating an aromatic amide compound into a corresponding aromatic nitrile compound, the method realizing a dehydration reaction of providing a target compound selectively at a high yield with generation of a by-product being suppressed. Also provided is a method for producing an aromatic nitrile compound that decreases the number of steps of dehydration reaction and significantly improves the reaction speed at a pressure close to normal pressure. Furthermore, the above-described production method is applied to a carbonate ester production method to provide a method for producing carbonate ester efficiently. The above-described objects are achieved by a method for producing an aromatic nitrile compound including a dehydration reaction of dehydrating an aromatic amide compound, in which the dehydration reaction uses diphenylether.
    Type: Application
    Filed: June 20, 2017
    Publication date: June 20, 2019
    Applicants: Mitsubishi Gas Chemical Company, Inc., Tohoku University, Nippon Steel & Sumitomo Metal Corporation, Nippon Steel & Sumikin Engineering Co., Ltd.
    Inventors: Yousuke SHINKAI, Hongyu LIU, Hidefumi HARADA, Yoshinori ISAHAYA, Keiichi TOMISHIGE, Yoshinao NAKAGAWA, Masazumi TAMURA, Kimihito SUZUKI, Yasuki NAMIKI
  • Publication number: 20190032160
    Abstract: The present invention provides a novel method for supplying a reducing gas to the shaft part of a blast furnace with which a large amount of reducing gas containing hydrogen at a high concentration can be supplied to a deeper position in the blast furnace (location of the blast furnace closer to the center axis in the radial direction) and with which it is possible to reduce the total generated amount of CO2 of the CO2 amount that is reduced by conducting hydrogen smelting in the blast furnace and the CO2 amount that is generated during production of the reducing gas supplied to the blast furnace. The method for supplying a reducing gas to the shaft part of a blast furnace according to the present invention is characterized by reforming coke oven gas by increasing the temperature thereof to 1200 to 1800° C.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 31, 2019
    Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION, JFE STEEL CORPORATION, KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), NISSHIN STEEL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Nobuaki ITO, Hitoshi DONOMAE, Kimihito SUZUKI, Kenji NAKAO, Toshio ISOHARA
  • Patent number: 9393551
    Abstract: Disclosed is a catalyst for reforming a tar-containing gas, wherein the catalyst contains at least one composite oxide as oxide containing nickel, magnesium, cerium and aluminum and the content of alumina as a single compound is limited to 5% by mass or less.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: July 19, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kimihito Suzuki, Kenichiro Fujimoto
  • Patent number: 9314760
    Abstract: A continuous fixed-bed catalytic reactor includes an inflow path for raw material gas for a catalytic reaction and an outflow path for reformed gas, a catalytic reaction container that is connected to the inflow path and the outflow path and holds a clumpy catalyst, catalyst holders that have a ventilation property and hold the clumpy catalyst, and a driving mechanism that moves the clumpy catalyst up and down by moving the catalyst holders up and down.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: April 19, 2016
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Nobuaki Ito, Kimihito Suzuki, Kenichiro Fujimoto, Kenji Nakao
  • Patent number: 9090465
    Abstract: The present invention provides a method for producing a highly active catalyst for reforming tar-containing gas used to treat crude gas for chemical energy conversion consisting of converting to a fuel composition consisting mainly of methane, hydrogen and the like, by utilizing sensible heat possessed by crude gas generated during thermal decomposition of carbonaceous raw materials, and using the high chemical reaction activity of high-temperature tar contained in and incidental to the crude gas to convert the tar to light hydrocarbons in the presence of a catalyst; a tar reforming method; and, a method for regenerating a catalyst for reforming tar-containing gas.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: July 28, 2015
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Kimihito Suzuki, Kenichiro Fujimoto
  • Publication number: 20150010467
    Abstract: A continuous fixed-bed catalytic reactor includes an inflow path for raw material gas for a catalytic reaction and an outflow path for reformed gas, a catalytic reaction container that is connected to the inflow path and the outflow path and holds a clumpy catalyst, catalyst holders that have a ventilation property and hold the clumpy catalyst, and a driving mechanism that moves the clumpy catalyst up and down by moving the catalyst holders up and down.
    Type: Application
    Filed: January 21, 2013
    Publication date: January 8, 2015
    Inventors: Nobuaki Ito, Kimihito Suzuki, Kenichiro Fujimoto, Kenji Nakao
  • Patent number: 8524788
    Abstract: An exemplary method for producing a catalyst is provided where the catalyst includes a catalyst support on which a metallic compound is loaded. An impurity content of the catalyst can be in a range of approximately 0.01 mass % to 0.15 mass %. In particular, the exemplary method can include pre-treating the catalyst support to lower an impurity concentration of the catalyst support, and loading the metallic compound on the catalyst support after the pretreatment procedure.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: September 3, 2013
    Assignees: Nippon Steel & Sumitomo Metal Corporation, Japan Oil, Gas and Metals National Corporation
    Inventors: Kenichiro Fujimoto, Kimihito Suzuki, Shouli Sun
  • Patent number: 8500856
    Abstract: In a method of capturing carbon dioxide in a gas, carbon dioxide in a gas is adsorbed to the hybrid adsorbent prepared by mixing an adsorbent with iron oxide nanoparticles, microwaves are irradiated to the hybrid adsorbent and the carbon dioxide adsorbed to the hybrid adsorbent is desorbed from the hybrid adsorbent, and the carbon dioxide desorbed from the hybrid adsorbent is captured.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: August 6, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Kenji Nakao, Kimihito Suzuki, Kenichiro Fujimoto, Hatsuo Taira
  • Publication number: 20120289615
    Abstract: An exemplary method for producing a catalyst is provided where the catalyst includes a catalyst support on which a metallic compound is loaded. An impurity content of the catalyst can be in a range of approximately 0.01 mass % to 0.15 mass %. In particular, the exemplary method can include pre-treating the catalyst support to lower an impurity concentration of the catalyst support, and loading the metallic compound on the catalyst support after the pretreatment procedure.
    Type: Application
    Filed: April 12, 2012
    Publication date: November 15, 2012
    Applicants: Japan Oil, gas and Metals National Corporation, Nippon Steel Corporation
    Inventors: Kenichiro FUJIMOTO, Kimihito Suzuki, Shouli Sun
  • Patent number: 8178589
    Abstract: An exemplary method for producing a catalyst is provided where the catalyst includes a catalyst support on which a metallic compound is loaded. An impurity content of the catalyst can be in a range of approximately 0.01 mass % to 0.15 mass %. In particular, the exemplary method can include pre-treating the catalyst support to lower an impurity concentration of the catalyst support, and loading the metallic compound on the catalyst support after the pretreatment procedure.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: May 15, 2012
    Assignees: Nippon Steel Corporation, Japan Oil, Gas and Metals National Corporation
    Inventors: Kenichiro Fujimoto, Kimihito Suzuki, Shouli Sun
  • Publication number: 20120058030
    Abstract: Disclosed is a catalyst for reforming a tar-containing gas, wherein the catalyst contains at least one composite oxide as oxide containing nickel, magnesium, cerium and aluminum and the content of alumina as a single compound is limited to 5% by mass or less.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 8, 2012
    Inventors: Kimihito Suzuki, Kenichiro Fujimoto
  • Publication number: 20120048111
    Abstract: In a method of capturing carbon dioxide in a gas, carbon dioxide in a gas is adsorbed to the hybrid adsorbent prepared by mixing an adsorbent with iron oxide nanoparticles, microwaves are irradiated to the hybrid adsorbent and the carbon dioxide adsorbed to the hybrid adsorbent is desorbed from the hybrid adsorbent, and the carbon dioxide desorbed from the hybrid adsorbent is captured.
    Type: Application
    Filed: May 10, 2010
    Publication date: March 1, 2012
    Inventors: Kenji Nakao, Kimihito Suzuki, Kenichiro Fujimoto, Hatsuo Taira
  • Publication number: 20110182792
    Abstract: The present invention provides a method for producing a highly active catalyst for reforming tar-containing gas used to treat crude gas for chemical energy conversion consisting of converting to a fuel composition consisting mainly of methane, hydrogen and the like, by utilizing sensible heat possessed by crude gas generated during thermal decomposition of carbonaceous raw materials, and using the high chemical reaction activity of high-temperature tar contained in and incidental to the crude gas to convert the tar to light hydrocarbons in the presence of a catalyst; a tar reforming method; and, a method for regenerating a catalyst for reforming tar-containing gas.
    Type: Application
    Filed: September 15, 2009
    Publication date: July 28, 2011
    Inventors: Kimihito Suzuki, Kenichiro Fujimoto
  • Publication number: 20100184876
    Abstract: An exemplary method for producing a catalyst is provided where the catalyst includes a catalyst support on which a metallic compound is loaded. An impurity content of the catalyst can be in a range of approximately 0.01 mass % to 0.15 mass %. In particular, the exemplary method can include pre-treating the catalyst support to lower an impurity concentration of the catalyst support, and loading the metallic compound on the catalyst support after the pretreatment procedure.
    Type: Application
    Filed: March 30, 2010
    Publication date: July 22, 2010
    Applicants: Nippon Steel Corporation, Japan Oil, gas and Metals National Corporation
    Inventors: Kenichiro Fujimoto, Kimihito Suzuki, Shouli Sun
  • Publication number: 20060223693
    Abstract: A catalyst for Producing hydrocarbon from a syngas is provided. In particular, the catalyst can be composed of catalyst support which a metallic compound is loaded on and that the impurity content of the catalyst is in the range from 0.01 mass % to 0.15 mass %. In addition. a method for producing the catalyst. and a method for producing the hydrocarbon using the catalyst are Provided.
    Type: Application
    Filed: April 7, 2004
    Publication date: October 5, 2006
    Inventors: Kenichiro Fujimoto, Kimihito Suzuki, Shouli Sun
  • Patent number: 6555272
    Abstract: A lithium secondary battery comprising a positive electrode active material, a negative electrode active material, and a non-aqueous electrolyte is disclosed. The negative electrode active material is a powder of a silicon material containing boron and has a boron content in the range of 0.1-50 wt. %.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: April 29, 2003
    Assignee: Nippon Steel Corporation
    Inventors: Kimihito Suzuki, Takeshi Hamada, Taro Kono, Tsutomu Sugiura, Hiromasa Shoji
  • Publication number: 20020146623
    Abstract: A lithium secondary battery comprising a positive electrode active material, a negative electrode active material, and a non-aqueous electrolyte is disclosed. The negative electrode active material is a powder of a silicon material containing boron and has a boron content in the range of 0.1-50 wt. %.
    Type: Application
    Filed: September 10, 1999
    Publication date: October 10, 2002
    Inventors: KIMIHITO SUZUKI, TAKESHI HAMADA, TARO KONO, TSUTOMU SUGIURA, HIROMASA SHOJI
  • Patent number: 6194067
    Abstract: Carbonaceous particles and carbonaceous fibers whose surfaces are covered with a boron nitride thin film, wherein the atomic concentration of boron C(B), the atomic concentration of carbon C(C) and the atomic concentration of nitrogen C(N) satisfy the following inequalities: 0.05<C(B)/(C(B)+C(C)+C(N))<0.3 0.05<C(N)/(C(B)+C(C)+C(N))<0.3 in the surface region as measured by photoelectron spectroscopy. Also, lithium secondary batteries which employ these carbonaceous particles and carbonaceous fibers as negative electrode active materials.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: February 27, 2001
    Assignee: Nippon Steel Corporation
    Inventors: Takeshi Hamada, Tsutomu Sugiura, Kimihito Suzuki, Taro Kohno, Koki Inada, Yoshitaka Yamana
  • Patent number: 5851697
    Abstract: A negative electrode material for a lithium secondary cell comprises carbonaceous particles consisting essentially of carbon fiber particles prepared by pulverizing pitch-based carbon fibers, wherein the layer spacing d between the carbon layers is less than 0.338 nm, the average particle size is 5-200 .mu.m, the fiber diameter of the pitch-based carbon fibers is 5-30 .mu.m, and the aspect ratio of the carbon fiber particles is 100 or less, the layer spacing d determined based on X-ray diffraction of the carbon fiber particles. A lithium secondary cell contains such a negative electrode material.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: December 22, 1998
    Assignee: Nippon Steel Corporation
    Inventors: Takashi Iijima, Kimihito Suzuki, Maki Sato