Patents by Inventor Taiichiro SAKAMOTO
Taiichiro SAKAMOTO 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: 11081709Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.Type: GrantFiled: June 26, 2020Date of Patent: August 3, 2021Assignees: PANASONIC CORPORATION, MORIMURA SOFC TECHNOLOGY CO., LTD.Inventors: Shigenori Onuma, Kunihiro Ukai, Hiroshi Shirahama, Takeshi Saito, Yosuke Akagi, Taiichiro Sakamoto, Toshiharu Ooe, Toshiharu Otsuka
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Publication number: 20200328436Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Inventors: Shigenori ONUMA, Kunihiro UKAI, Hiroshi SHIRAHAMA, Takeshi SAITO, Yosuke AKAGI, Taiichiro SAKAMOTO, Toshiharu OOE, Toshiharu OTSUKA
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Patent number: 10741858Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.Type: GrantFiled: November 25, 2015Date of Patent: August 11, 2020Assignees: PANASONIC CORPORATION, MORIMURA SOFC TECHNOLOGY CO., LTD.Inventors: Shigenori Onuma, Kunihiro Ukai, Hiroshi Shirahama, Takeshi Saito, Yosuke Akagi, Taiichiro Sakamoto, Toshiharu Ooe, Toshiharu Otsuka
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Patent number: 10629926Abstract: A solid oxide fuel cell system includes: an igniting portion configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion configured to supply the raw material; a reforming air supply portion configured to supply reforming air; and an electric power generation air supply portion configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion supplies the raw material, and the electric power generation air supply portion supplies the electric power generation air. The igniting portion ignites the raw material. After the ignition, the reforming air supply portion supplies the reforming air. With this, the safety can be increased in consideration of characteristics in respective phases from the start-up of the solid oxide fuel cell system until the electric power generation.Type: GrantFiled: August 30, 2018Date of Patent: April 21, 2020Assignee: Panasonic CorporationInventors: Osamu Sakai, Tatsuo Fujita, Kunihiro Ukai, Takashi Kakuwa, Taiichiro Sakamoto, Toshiharu Ooe
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Publication number: 20180375126Abstract: A solid oxide fuel cell system includes: an igniting portion configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion configured to supply the raw material; a reforming air supply portion configured to supply reforming air; and an electric power generation air supply portion configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion supplies the raw material, and the electric power generation air supply portion supplies the electric power generation air. The igniting portion ignites the raw material. After the ignition, the reforming air supply portion supplies the reforming air. With this, the safety can be increased in consideration of characteristics in respective phases from the start-up of the solid oxide fuel cell system until the electric power generation.Type: ApplicationFiled: August 30, 2018Publication date: December 27, 2018Inventors: Osamu SAKAI, Tatsuo FUJITA, Kunihiro UKAI, Takashi KAKUWA, Taiichiro SAKAMOTO, Toshiharu OOE
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Patent number: 10096851Abstract: A solid oxide fuel cell system includes: a fuel cell unit including a solid oxide fuel cell and a mixer, the solid oxide fuel cell including an anode gas passage and a cathode gas passage, the mixer mixing an anode off gas discharged from the anode gas passage and a cathode off gas discharged from the cathode gas passage; a power-generating raw material supply device operative to supply a power-generating raw material to the fuel cell unit; a combustible gas passage, which extends from the power-generating raw material supply device to a downstream end of the anode gas passage; an oxidizing gas supply device operative to supply an oxidizing gas to the cathode gas passage; and a controller operative to, after electric power generation by the fuel cell unit is stopped, control the power-generating raw material supply device to supply the power-generating raw material in a volume more than or equal to a volume of the combustible gas passage to the combustible gas passage, and concurrently control the oxidizing gType: GrantFiled: February 9, 2015Date of Patent: October 9, 2018Assignees: PANASONIC CORPORATION, TOTO LTD.Inventors: Yasushi Kaneko, Shigenori Onuma, Kunihiro Ukai, Akinori Yukimasa, Hiroshi Shirahama, Toshiharu Otsuka, Hiromi Kita, Taiichiro Sakamoto, Toshiharu Ooe
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Patent number: 10096849Abstract: A solid oxide fuel cell system includes: an igniting portion configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion configured to supply the raw material; a reforming air supply portion configured to supply reforming air; and an electric power generation air supply portion configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion supplies the raw material, and the electric power generation air supply portion supplies the electric power generation air. The igniting portion ignites the raw material. After the ignition, the reforming air supply portion supplies the reforming air. With this, the safety can be increased in consideration of characteristics in respective phases from the start-up of the solid oxide fuel cell system until the electric power generation.Type: GrantFiled: February 9, 2015Date of Patent: October 9, 2018Assignee: PANASONIC CORPORATIONInventors: Osamu Sakai, Tatsuo Fujita, Kunihiro Ukai, Takashi Kakuwa, Taiichiro Sakamoto, Toshiharu Ooe
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Publication number: 20180145347Abstract: A fuel cell system includes: a reformer to generate reformed gas; a solid-oxide fuel cell to generate electric power; a fuel collecting portion provided adjacent to the solid-oxide fuel cell, the reformed gas remaining after the reaction of the solid-oxide fuel cell being collected at the fuel collecting portion; an air flow-through portion; a combustor to mix the reformed gas discharged from a fuel jetting opening of the fuel collecting portion with the air flowing through the air flow-through portion, to combust the reformed gas and operative to mix the reformed gas discharged from a fuel jetting opening of the fuel collecting portion with the air flowing through the air flow-through portion, to combust the reformed gas; and a covering body provided so as to block flow of the air in a direction from the air flow-through portion toward the combustor along the reformer.Type: ApplicationFiled: March 16, 2016Publication date: May 24, 2018Inventors: Takashi KAKUWA, Tatsuo FUJITA, Toshiharu OOE, Taiichiro SAKAMOTO, Toshiharu OTSUKA, Naoki WATANABE
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Publication number: 20170250418Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.Type: ApplicationFiled: November 25, 2015Publication date: August 31, 2017Inventors: Shigenori ONUMA, Kunihiro UKAI, Hiroshi SHIRAHAMA, Takeshi SAITO, Yosuke AKAGI, Taiichiro SAKAMOTO, Toshiharu OOE, Toshiharu OTSUKA
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Publication number: 20170092969Abstract: A solid oxide fuel cell system includes: a fuel cell unit including a solid oxide fuel cell and a mixer, the solid oxide fuel cell including an anode gas passage and a cathode gas passage, the mixer mixing an anode off gas discharged from the anode gas passage and a cathode off gas discharged from the cathode gas passage; a power-generating raw material supply device operative to supply a power-generating raw material to the fuel cell unit; a combustible gas passage, which extends from the power-generating raw material supply device to a downstream end of the anode gas passage; an oxidizing gas supply device operative to supply an oxidizing gas to the cathode gas passage; and a controller operative to, after electric power generation by the fuel cell unit is stopped, control the power-generating raw material supply device to supply the power-generating raw material in a volume more than or equal to a volume of the combustible gas passage to the combustible gas passage, and concurrently control the oxidizing gType: ApplicationFiled: February 9, 2015Publication date: March 30, 2017Inventors: Yasushi KANEKO, Shigenori ONUMA, Kunihiro UKAI, Akinori YUKIMASA, Hiroshi SHIRAHAMA, Toshiharu OTSUKA, Hiromi KITA, Taiichiro SAKAMOTO, Toshiharu OOE
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Publication number: 20160293981Abstract: A solid oxide fuel cell system includes: an igniting portion configured to ignite a raw material when starting up the solid oxide fuel cell system; a raw material supply portion configured to supply the raw material; a reforming air supply portion configured to supply reforming air; and an electric power generation air supply portion configured to supply electric power generation air. When starting up the solid oxide fuel cell system, the raw material supply portion supplies the raw material, and the electric power generation air supply portion supplies the electric power generation air. The igniting portion ignites the raw material. After the ignition, the reforming air supply portion supplies the reforming air. With this, the safety can be increased in consideration of characteristics in respective phases from the start-up of the solid oxide fuel cell system until the electric power generation.Type: ApplicationFiled: February 9, 2015Publication date: October 6, 2016Inventors: Osamu SAKAI, Tatsuo FUJITA, Kunihiro UKAI, Takashi KAKUWA, Taiichiro SAKAMOTO, Toshiharu OOE