Patents by Inventor Shoji Sekino

Shoji Sekino 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: 9575216
    Abstract: An infrared-transmitting film which is excellent in mechanical strength and environmental resistance. The infrared-transmitting film comprises a buffer layer formed on a surface of an infrared optical substrate and having a Vickers hardness greater than that of the substrate and an environmental resistance improving layer provided in contact with the buffer layer and having a Vickers hardness greater than that of the buffer layer.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: February 21, 2017
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Jun Akedo, Hiroki Tsuda, Keishi Ohashi, Shoji Sekino, Shin Nakamura
  • Publication number: 20140198379
    Abstract: An infrared-transmitting film which is excellent in mechanical strength and environmental resistance. The infrared-transmitting film comprises a buffer layer formed on a surface of an infrared optical substrate and having a Vickers hardness greater than that of the substrate and an environmental resistance improving layer provided in contact with the buffer layer and having a Vickers hardness greater than that of the buffer layer.
    Type: Application
    Filed: May 1, 2012
    Publication date: July 17, 2014
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Jun Akedo, Hiroki Tsuda, Keishi Ohashi, Shoji Sekino, Shin Nakamura
  • Patent number: 8546039
    Abstract: A solid polymer fuel cell that utilizes liquid fuel such as methanol should prevent generated water from residing in a ventilation port close to an anode, to thereby suppress degradation of a MEA. The fuel cell includes an anode, an anode-side collecting electrode, a sealing material located along a perimeter of a solid polymer electrolytic membrane and interleaved between the electrolytic membrane and the anode-side collecting electrode, and a discharging device that discharges a product generated through electric reaction on the anode. The sealing material is provided in a frame-shape around the anode. The discharging device is a ventilation port formed on the sealing material, and a water repellent material is provided at least one of inside the ventilation port and between the ventilation port and the anode.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: October 1, 2013
    Assignee: NEC Corporation
    Inventors: Kenji Kobayashi, Shoji Sekino
  • Publication number: 20130216469
    Abstract: A method of manufacturing an infrared sensor material includes preparing a CNT dispersion solution by dispersing a Carbon Nanotube (CNT) in a solvent, forming a CNT thin film using the CNT dispersion solution as a raw material, and annealing the CNT thin film so that an absolute value of the temperature coefficient of resistance is equal to or more than 1%/K at a temperature of ?10° C. to 50° C.
    Type: Application
    Filed: September 1, 2011
    Publication date: August 22, 2013
    Inventor: Shoji Sekino
  • Publication number: 20130037855
    Abstract: Provided is a Si—Ge laminated thin film including at least one Si layer and at least one Ge layer, which are alternately laminated on a substrate (1). A Si layer (31) and a Ge layer (22) each have a thickness in a range of 5 to 500 nm. The Si layer (31) is amorphous and only the Ge layer (22) is crystallized. An average crystallite size of Ge in the Ge layer (22) is 20 nm or less.
    Type: Application
    Filed: March 25, 2011
    Publication date: February 14, 2013
    Applicant: NEC CORPORATION
    Inventors: Shoji Sekino, Shin Nakamura, Tsutomu Yoshitake, Akio Furukawa
  • Patent number: 8277987
    Abstract: A fuel cell system includes: a fuel cell stack configured to have a plurality of unit fuel cells arranged on an identical plane; a chassis configured to cover at least one side of said fuel cell stack via an air flow space; and a condensation water holding member configured to be provided in at least a part between said fuel cell stack and said chassis, have a mesh shape and have a function for keeping moisture.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 2, 2012
    Assignee: NEC Corporation
    Inventors: Shoji Sekino, Takashi Manako, Takanori Nishi
  • Patent number: 8148025
    Abstract: A solid polymer fuel cell includes a solid polymer electrolytic membrane 1, an anode 2 contacting one of the faces of the solid polymer electrolytic membrane 1, a cathode 3 contacting the other face of the solid polymer electrolytic membrane 1, and a gas-liquid separation membrane 4 enclosing a MEA 12 including the solid polymer electrolytic membrane 4, the anode 2, and the cathode 3, and which transmits gas but not liquid. An end face of the gas-liquid separation membrane 1 is sealed, and the MEA 12 is isolated from outside of the gas-liquid separation membrane 4. The anode 2 and the cathode 3 respectively include an electrode terminal extending from an end portion thereof, and the electrode terminal is exposed to outside of the gas-liquid separation membrane 4, through an end portion thereof.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: April 3, 2012
    Assignee: NEC Corporation
    Inventors: Kenji Kobayashi, Shoji Sekino
  • Publication number: 20120040257
    Abstract: An object of the present invention is to downsize a fuel cell, and to stably supply fuel to a fuel electrode. According to the present invention, the above described object is attained by providing a vaporized fuel container 1518 communicated with a liquid fuel container 1517 via a gas liquid separating film 1519 in the fuel cell 1516, in which a liquid fuel 124 supplied to a fuel electrode 102 is stored.
    Type: Application
    Filed: February 21, 2005
    Publication date: February 16, 2012
    Inventors: Hideaki Sasaki, Shin Nakamura, Shoji Sekino, Yoshimi Kubo
  • Publication number: 20100248068
    Abstract: A fuel cell stack includes two or more cells. The cell includes a solid polymer electrolyte membrane, a porous metallic cathode, and a porous metallic anode. The cathode is arranged on one surface of the solid polymer electrolyte membrane through a catalyst layer. The anode is arranged on the other surface of the solid polymer electrolyte membrane through a catalyst layer. Two or more cells are connected in an electrically conductive manner by resistance welding of the cathode of one of the cells and the anode of the other one of the cells with a conductive metallic foil interposed therebetween.
    Type: Application
    Filed: February 17, 2010
    Publication date: September 30, 2010
    Inventor: SHOJI SEKINO
  • Publication number: 20100068587
    Abstract: A solid polymer fuel cell includes a solid polymer electrolytic membrane 1, an anode 2 contacting one of the faces of the solid polymer electrolytic membrane 1, a cathode 3 contacting the other face of the solid polymer electrolytic membrane 1, and a gas-liquid separation membrane 4 enclosing a MEA 12 including the solid polymer electrolytic membrane 4, the anode 2, and the cathode 3, and which transmits gas but not liquid. An end face of the gas-liquid separation membrane 1 is sealed, and the MEA 12 is isolated from outside of the gas-liquid separation membrane 4. The anode 2 and the cathode 3 respectively include an electrode terminal extending from an end portion thereof, and the electrode terminal is exposed to outside of the gas-liquid separation membrane 4, through an end portion thereof.
    Type: Application
    Filed: November 9, 2007
    Publication date: March 18, 2010
    Inventors: Kenji Kobayashi, Shoji Sekino
  • Publication number: 20100055527
    Abstract: A solid polymer fuel cell that utilizes liquid fuel such as methanol should prevent generated water from residing in a ventilation port close to an anode, to thereby suppress degradation of a MEA. The fuel cell includes an anode, an anode-side collecting electrode, a sealing material located along a perimeter of a solid polymer electrolytic membrane and interleaved between the electrolytic membrane and the anode-side collecting electrode, and a discharging device that discharges a product generated through electric reaction on the anode. The sealing material is provided in a frame-shape around the anode. The discharging device is a ventilation port formed on the sealing material, and a water repellent material is provided at least one of inside the ventilation port and between the ventilation port and the anode.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 4, 2010
    Inventors: Kenji Kobayashi, Shoji Sekino
  • Publication number: 20090117445
    Abstract: The present invention makes a power generation environment of a MEA uniform. A fuel cell system of the present invention includes a fuel cell stack having a plurality of fuel cells arranged on an identical plane, a housing configured to cover the fuel cell stack above a surface of said fuel cell stack through an airflow space, an airflow generating section configured to form airflow in said airflow space, and a blowing path provided such that exhaust gas exhausted from the airflow space is introduced into the airflow space again via the airflow generating section.
    Type: Application
    Filed: February 23, 2007
    Publication date: May 7, 2009
    Applicant: NEC CORPORATION
    Inventor: Shoji Sekino
  • Publication number: 20090092865
    Abstract: A fuel cell system includes: a fuel cell stack configured to have a plurality of unit fuel cells arranged on an identical plane; a chassis configured to cover at least one side of said fuel cell stack via an air flow space; and a condensation water holding member configured to be provided in at least a part between said fuel cell stack and said chassis, have a mesh shape and have a function for keeping moisture.
    Type: Application
    Filed: February 23, 2007
    Publication date: April 9, 2009
    Applicant: NEC CORPORATION
    Inventors: Shoji Sekino, Takashi Manako, Takanori Nishi
  • Publication number: 20070202382
    Abstract: Output properties of a fuel cell can be improved by using a single cell structure 1387 having an anode 102 and an oxidizing agent electrode 108 in both sides of a solid electrolyte membrane 114 and an evaporation inhibiting layer 1388 covering the surface of the cathode 108 which is not in contact with the solid electrolyte membrane 114.
    Type: Application
    Filed: March 22, 2005
    Publication date: August 30, 2007
    Inventors: Shin Nakamura, Hideaki Sasaki, Shoji Sekino, Takeshi Obata, Tsutomu Yoshitake, Yoshimi Kubo, Kenji Kobayashi
  • Publication number: 20060204814
    Abstract: A fuel cell (723) includes, a high-concentration fuel vessel (715) placed adjacent to a fuel vessel (713) that supplies a fuel (124) to a unit cell structure (101), and a permeation control film (717) that is placed at the boundary between the fuel vessel (713) and the high-concentration fuel vessel (715) and controls the transmission of a high-concentration fuel (725) in the fuel (124).
    Type: Application
    Filed: August 23, 2004
    Publication date: September 14, 2006
    Inventors: Shoji Sekino, Takeshi Obata, Shin Nakamura, Yoshimi Kubo