Patents by Inventor Yoshio Matsuzaki

Yoshio 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: 7223492
    Abstract: A laminated structure of a flat plate type solid oxide fuel cell is made up of an alloy metal separator having a flat plate and a slit plate, wherein the flat plate is brought into contact with the slit plate after the slit plate is brought into contact with an air pole or the air pole is brought into contact with the slit plate after the slit plate is brought into contact with the flat plate, whereby a problem with the working of the alloy metal separator can be eliminated, and also the excellent performance of the flat plate type solid oxide fuel cell can be maintained by using the separator.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 29, 2007
    Assignee: Tokyo Gas Co., Ltd.
    Inventors: Yoshitaka Baba, Yoshio Matsuzaki, Isamu Yasuda
  • Publication number: 20060153974
    Abstract: There is provided a method of manufacturing a solid oxide fuel cell module comprising a plurality of cells each made up of a fuel electrode, an electrolyte, and an air electrode sequentially formed on a surface of a substrate with an internal fuel flow part provided therein, at least a face of the substrate, in contact with the cells, and interconnectors, being an insulator, and the cells adjacent to each other, being electrically connected in series through the intermediary of the respective interconnectors, said method of manufacturing the solid oxide fuel cell module comprising the steps of co-sintering the respective fuel electrodes, and the respective electrolytes, subsequently forming a dense interconnector out of a dense interconnector material, or an interconnector material turning dense by sintering in at least parts of the solid oxide fuel cell module, in contact with the respective fuel electrodes, and the respective electrolyte, and forming an air electrode on the respective electrolytes before el
    Type: Application
    Filed: March 31, 2004
    Publication date: July 13, 2006
    Inventors: Yoshio Matsuzaki, Kenjiro Fujita, Teruhiro Sakurai, Kei Ogasawara
  • Publication number: 20060147778
    Abstract: There is provided a solid oxide fuel cell module comprising a substrate with an internal fuel flow part provided therein, at least a face thereof, in contact with cells, and interconnectors, being an insulator, a plurality of the cells each comprised of an anode, an electrolyte, and a cathode, stacked in sequence, formed on a surface of the substrate, and the interconnectors each electrically connecting in series the cells adjacent to each other, wherein the respective cells are varied in area along the direction of fuel flow, and solid oxide fuel cell bundled modules using the same. With the solid oxide fuel cell module of a multi-segment type, according to the invention, it is possible to aim at higher voltage, and to attain improvement in power generation efficiency, and current collecting efficiency.
    Type: Application
    Filed: March 12, 2004
    Publication date: July 6, 2006
    Inventors: Yoshio Matsuzaki, Teruhiro Sakurai, Kenjiro Fujita
  • Publication number: 20050089731
    Abstract: There are provided a solid oxide fuel cell system comprising (a) a solid oxide fuel cell stack, (b) a preliminary reformer for removing hydrocarbons having two or more carbon atoms from a hydrocarbon fuel by converting the hydrocarbons having two or more carbon atoms into methane, hydrogen, and carbon monoxide, and (c) an integrated heat exchanger for catalytic combustion for heating either air or fuel, or both the air and fuel, to be guided to the solid oxide fuel cell stack, by use of a combustion gas formed by combusting discharged fuel with the use of discharged air, wherein component equipment described above are disposed in an adiabatic vessel and the integrated heat exchanger for catalytic combustion for use in the solid oxide fuel cell system. With the invention, an advantage of the preliminary reformer in combination with that of the integrated heat exchanger for catalytic combustion can be obtained, and heat loss of the SOFC system is eliminated or reduced as much as possible.
    Type: Application
    Filed: February 5, 2003
    Publication date: April 28, 2005
    Inventors: Takashi Ogiwara, Yoshio Matsuzaki, Isamu Yasuda, Kentaro Ito
  • Patent number: 6790474
    Abstract: There is disclosed a fuel electrode of solid oxide fuel cells which is made of a cermet composed of yttria-stabilized zirconia containing a transition metal dissolved therein and nickel (Ni) or a cermet composed of yttria-stabilized zirconia containing a transition metal dissolved therein, nickel (Ni) and cerium oxide containing a divalent or trivalent metal dissolved therein, and which can be obtained by adding a solution of a metallo-organic compound of yttrium (Y) and a solution of a metallo-organic transition-metal compound to a solution of a metallo-organic compound of zirconium (Zr) to prepare a mixed solution of metallo-organic compounds of Zr—Y-transition metal; adding NiO powder or a powder mixture of NiO powder with cerium oxide powder containing a divalent or trivalent metal oxide dissolved therein to the mixed solution of the metallo-organic compounds to prepare a slurry; and subjecting the slurry to hydrolysis, polycondensation, pyrolysis, annealing and reduction successively.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: September 14, 2004
    Assignee: Tokyo Gas Co., Ltd.
    Inventors: Masakazu Hishinuma, Yoshio Matsuzaki
  • Publication number: 20040110055
    Abstract: A laminated structure of a flat plate type solid oxide fuel cell, comprising an alloy metal separator having a flat plate and a slit plate, wherein the flat plate is brought into contact with the slit plate after the slit plate is brought into contact with an air pole or the air pole is brought into contact with the slit plate after the slit plate is brought into contact with the flat plate, whereby a problem with the working of the alloy metal separator can be eliminated, and also the excellent performance of the flat plate type solid oxide fuel cell can be maintained by using the separator.
    Type: Application
    Filed: September 24, 2003
    Publication date: June 10, 2004
    Inventors: Yoshitaka Baba, Yoshio Matsuzaki, Isamu Yasuda
  • Publication number: 20030057029
    Abstract: Disclosed herein is a building equipment managing method using a history database for recording the conditions of building equipment, a display device installed in public spaces of a building, and an input device installed in the public spaces of the building for inputting a request for the indication of necessary information, the method comprising the steps of: recording a change in a condition of the building equipment in the history database; and in response to receiving a request for indicating a content which is recorded in the history database from the input device, indicating on the display device the content which is recorded in the history database.
    Type: Application
    Filed: September 24, 2002
    Publication date: March 27, 2003
    Inventors: Atsuya Fujino, Toshihiko Hatakeyama, Seiji Kawanishi, Yoshio Matsuzaki, Takashi Matsudo, Osamu Dohi, Isamu Mutou, Hiroshi Nagase
  • Patent number: 5474800
    Abstract: A method of manufacturing an anode for solid oxide fuel cells is disclosed whereby the dispersion of nickel particles which form the anode for the solid oxide fuel cell is ensured, coherence of the Ni or NiO particles when being annealed or when generating electricity is prevented, the adhesion of the anode to the solid electrolyte layer is good, the contact resistance is reduced, and the electrode performance is improved.To form an anode on one surface of the central solid electrolyte layer, first, Ni or NiO, and a solution of an organometallic complex salt in an organic solvent, from which is obtained thin- films or minute particles of a solid electrolyte by thermal decomposition, are blended, and the solvent is evaporated until a suitable viscosity is obtained. The slurry obtained in this manner is coated onto the central solid electrolyte layer and this coated film is then dried, annealed, and thermally decomposed to obtain an NiO-solid-electrolyte or an Ni-solid-electrolyte cermet.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: December 12, 1995
    Assignee: Tokyo Gas Company, Ltd.
    Inventor: Yoshio Matsuzaki