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).
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Patent number: 9575216Abstract: 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: GrantFiled: May 1, 2012Date of Patent: February 21, 2017Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Jun Akedo, Hiroki Tsuda, Keishi Ohashi, Shoji Sekino, Shin Nakamura
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Publication number: 20140198379Abstract: 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: ApplicationFiled: May 1, 2012Publication date: July 17, 2014Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Jun Akedo, Hiroki Tsuda, Keishi Ohashi, Shoji Sekino, Shin Nakamura
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Patent number: 8546039Abstract: 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: GrantFiled: October 30, 2007Date of Patent: October 1, 2013Assignee: NEC CorporationInventors: Kenji Kobayashi, Shoji Sekino
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Publication number: 20130216469Abstract: 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: ApplicationFiled: September 1, 2011Publication date: August 22, 2013Inventor: Shoji Sekino
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Publication number: 20130037855Abstract: 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: ApplicationFiled: March 25, 2011Publication date: February 14, 2013Applicant: NEC CORPORATIONInventors: Shoji Sekino, Shin Nakamura, Tsutomu Yoshitake, Akio Furukawa
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Patent number: 8277987Abstract: 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: GrantFiled: February 23, 2007Date of Patent: October 2, 2012Assignee: NEC CorporationInventors: Shoji Sekino, Takashi Manako, Takanori Nishi
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Patent number: 8148025Abstract: 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: GrantFiled: November 9, 2007Date of Patent: April 3, 2012Assignee: NEC CorporationInventors: Kenji Kobayashi, Shoji Sekino
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Publication number: 20120040257Abstract: 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: ApplicationFiled: February 21, 2005Publication date: February 16, 2012Inventors: Hideaki Sasaki, Shin Nakamura, Shoji Sekino, Yoshimi Kubo
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Publication number: 20100248068Abstract: 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: ApplicationFiled: February 17, 2010Publication date: September 30, 2010Inventor: SHOJI SEKINO
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Publication number: 20100068587Abstract: 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: ApplicationFiled: November 9, 2007Publication date: March 18, 2010Inventors: Kenji Kobayashi, Shoji Sekino
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Publication number: 20100055527Abstract: 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: ApplicationFiled: October 30, 2007Publication date: March 4, 2010Inventors: Kenji Kobayashi, Shoji Sekino
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Publication number: 20090117445Abstract: 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: ApplicationFiled: February 23, 2007Publication date: May 7, 2009Applicant: NEC CORPORATIONInventor: Shoji Sekino
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Publication number: 20090092865Abstract: 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: ApplicationFiled: February 23, 2007Publication date: April 9, 2009Applicant: NEC CORPORATIONInventors: Shoji Sekino, Takashi Manako, Takanori Nishi
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Publication number: 20070202382Abstract: 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: ApplicationFiled: March 22, 2005Publication date: August 30, 2007Inventors: Shin Nakamura, Hideaki Sasaki, Shoji Sekino, Takeshi Obata, Tsutomu Yoshitake, Yoshimi Kubo, Kenji Kobayashi
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Publication number: 20060204814Abstract: 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: ApplicationFiled: August 23, 2004Publication date: September 14, 2006Inventors: Shoji Sekino, Takeshi Obata, Shin Nakamura, Yoshimi Kubo