Patents by Inventor Shunsuke Maekawa

Shunsuke Maekawa 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).

  • Hydrogen separation membrane module and hydrogen separation method using same
    Patent number: 8992669
    Abstract: The hydrogen separation membrane module according to the present invention is used for separating hydrogen from a gas to be treated containing hydrogen, and is provided with a tubular hydrogen separation membrane being selectively permeable to hydrogen, a casing for the hydrogen separation membrane, an insertion member being arranged on the inside of the hydrogen separation membrane and having an outer surface that defines a flow path of the gas to be treated together with an inner surface of the hydrogen separation membrane, a gas supply port for supplying the gas to be treated to the inside of the hydrogen separation membrane, a gas discharge port for discharging a non-permeating gas that does not permeate the hydrogen separation membrane, from a downstream side of the flow path, and a hydrogen discharge port provided in the casing, for discharging hydrogen having permeated the hydrogen separation membrane.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 31, 2015
    Assignees: JX Nippon Oil & Energy Corporation, Japan Petroleum Energy Center
    Inventors: Masakazu Ikeda, Shunsuke Maekawa, Kaori Takano
  • Method and apparatus for hydrogen production and carbon dioxide recovery
    Patent number: 8911519
    Abstract: There are provided methods and apparatus allowing effective production of high purity hydrogen and recovery of carbon dioxide.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: December 16, 2014
    Assignee: Nippon Oil Corporation
    Inventors: Takuya Niitsuma, Shunsuke Maekawa, Yoshihiro Kobori
  • ORGANIC COMPOUND HYDROGENATION DEVICE AND HYDROGENATION METHOD
    Publication number: 20130313127
    Abstract: The invention provides an organic compound(s) hydrogenation device that allows hydrogen derived from water to be stored essentially without generating hydrogen gas. The organic compound hydrogenation device of the invention comprises an oxidation chamber that holds a water-containing electrolyte, a reduction chamber that holds an organic compound(s) with an unsaturated bond, an electrolyte membrane with ion permeability that separates the electrolyte held in the oxidation chamber from the organic compound(s) held in the reduction chamber, an oxidizing electrode that generates protons from the water held in the oxidation chamber, and a reducing electrode that hydrogenates the organic compound(s) held in the reduction chamber.
    Type: Application
    Filed: December 28, 2011
    Publication date: November 28, 2013
    Applicants: THE UNIVERSITY OF TOKYO, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yasushi Sato, Yoshihiro Kobori, Shunsuke Maekawa, Kazunari Domen, Jun Kubota, Masakazu Higuchi, Kazuhiro Takanabe
  • Hydrogen storage material
    Patent number: 8563465
    Abstract: The hydrogen storage material of the invention is a hydrogen storage material comprising metal fine particles with hydrogen storage capacity, and an organic compound that has at least two specific groups that can bind with the metal fine particles, and that is bonded with the metal fine particles by the specific groups.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: October 22, 2013
    Assignees: JX Nippon Oil & Energy Corporation, The University of Tokyo
    Inventors: Hiroshi Nishihara, Tetsu Yonezawa, Yoshinori Yamanoi, Yuki Yamamoto, Yoshihiro Kobori, Shinji Oshima, Yukio Kobayashi, Shunsuke Maekawa
  • HYDROGEN SEPARATION MEMBRANE MODULE AND HYDROGEN SEPARATION METHOD USING SAME
    Publication number: 20130213228
    Abstract: The hydrogen separation membrane module according to the present invention is used for separating hydrogen from a gas to be treated containing hydrogen, and is provided with a tubular hydrogen separation membrane being selectively permeable to hydrogen, a casing for the hydrogen separation membrane, an insertion member being arranged on the inside of the hydrogen separation membrane and having an outer surface that defines a flow path of the gas to be treated together with an inner surface of the hydrogen separation membrane, a gas supply port for supplying the gas to be treated to the inside of the hydrogen separation membrane, a gas discharge port for discharging a non-permeating gas that does not permeate the hydrogen separation membrane, from a downstream side of the flow path, and a hydrogen discharge port provided in the casing, for discharging hydrogen having permeated the hydrogen separation membrane.
    Type: Application
    Filed: May 31, 2011
    Publication date: August 22, 2013
    Applicants: JAPAN PETROLEUM ENERGY CENTER, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Masakazu Ikeda, Shunsuke Maekawa, Kaori Takano
  • Method and apparatus for producing hydrogen and recovering carbon dioxide
    Patent number: 8460630
    Abstract: When the production of hydrogen and the recovery of carbon dioxide are simultaneously performed by using as a raw material a carbon-containing fuel, the increase of the system cost is suppressed and the efficiency is improved.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: June 11, 2013
    Assignee: Nippon Oil Corporation
    Inventors: Takuya Niitsuma, Shunsuke Maekawa, Yoshihiro Kobori
  • HYDROGEN STORAGE MATERIAL
    Publication number: 20110160456
    Abstract: The hydrogen storage material of the invention is a hydrogen storage material comprising metal fine particles with hydrogen storage capacity, and an organic compound that has at least two specific groups that can bind with the metal fine particles, and that is bonded with the metal fine particles by the specific groups.
    Type: Application
    Filed: June 16, 2009
    Publication date: June 30, 2011
    Applicants: JX NIPPON OIL & ENERGY CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Hiroshi Nishihara, Tetsu Yonezawa, Yoshinori Yamanoi, Yuki Yamamoto, Yoshihiro Kobori, Shinji Oshima, Yukio Kobayashi, Shunsuke Maekawa
  • METHOD AND APPARATUS FOR HYDROGEN PRODUCTION AND CARBON DIOXIDE RECOVERY
    Publication number: 20100260657
    Abstract: There are provided methods and apparatus allowing effective production of high purity hydrogen and recovery of carbon dioxide.
    Type: Application
    Filed: July 25, 2008
    Publication date: October 14, 2010
    Applicant: NIPPON OIL CORPORATION
    Inventors: Takuya Niitsuma, Shunsuke Maekawa, Yoshihiro Kobori
  • METHOD AND APPARATUS FOR PRODUCING HYDROGEN AND RECOVERING CARBON DIOXIDE
    Publication number: 20100129284
    Abstract: When the production of hydrogen and the recovery of carbon dioxide are simultaneously performed by using as a raw material a carbon-containing fuel, the increase of the system cost is suppressed and the efficiency is improved.
    Type: Application
    Filed: March 29, 2007
    Publication date: May 27, 2010
    Applicant: Nippon Oil Corporation
    Inventors: Takuya Niitsuma, Shunsuke Maekawa, Yoshihiro Kobori