Patents by Inventor Kazuyuki Itou
Kazuyuki Itou 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: 8393159Abstract: A gas turbine combustor for mixing fuel into combustion air introduced from a compressor, burning an air-fuel mixture, and supplying produced combustion gas to a gas turbine. The combustor has a liquid fuel nozzle for jetting out liquid fuel and a pre-mixture chamber wall having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out from the liquid fuel nozzle, and defining a pre-mixture chamber therein. A plurality of gaseous fuel nozzles are disposed around the pre-mixture chamber wall in an opposing relation respectively to a plurality of air inlet holes bored through the pre-mixture chamber wall and jet out gaseous fuel substantially coaxially with the axes of the air inlet holes.Type: GrantFiled: July 7, 2009Date of Patent: March 12, 2013Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Patent number: 7673455Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: March 28, 2008Date of Patent: March 9, 2010Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Publication number: 20100000218Abstract: A gas turbine combustor for mixing fuel into combustion air introduced from a compressor, burning an air-fuel mixture, and supplying produced combustion gas to a gas turbine. The combustor has a liquid fuel nozzle for jetting out liquid fuel and a pre-mixture chamber wall having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out from the liquid fuel nozzle, and defining a pre-mixture chamber therein. A plurality of gaseous fuel nozzles are disposed around the pre-mixture chamber wall in an opposing relation respectively to a plurality of air inlet holes bored through the pre-mixture chamber wall and jet out gaseous fuel substantially coaxially with the axes of the air inlet holes.Type: ApplicationFiled: July 7, 2009Publication date: January 7, 2010Applicant: HITACHI, LTD.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Patent number: 7571612Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: March 28, 2008Date of Patent: August 11, 2009Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Patent number: 7571609Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: March 28, 2008Date of Patent: August 11, 2009Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Publication number: 20090159977Abstract: A semiconductor device has gate electrodes disposed in plural columns, respectively, over a semiconductor substrate in such a way as to be lined up along the direction of a gate length, and a gate connection portion provided in the same layer where the respective gate electrodes in the plural columns are placed, for electrically connecting the gate electrodes with each other. The gate connection portion includes a protrusion protruding outward in the direction of the gate length from the gate electrode positioned at the outermost ends of the gate electrodes disposed in the plural columns, respectively.Type: ApplicationFiled: December 5, 2008Publication date: June 25, 2009Applicant: NEC Electronics CorporationInventor: Kazuyuki Itou
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Patent number: 7426833Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: GrantFiled: June 17, 2004Date of Patent: September 23, 2008Assignee: Hitachi, Ltd.Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Publication number: 20080209909Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel, a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: March 28, 2008Publication date: September 4, 2008Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Publication number: 20080190113Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: March 28, 2008Publication date: August 14, 2008Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Publication number: 20080190112Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: March 28, 2008Publication date: August 14, 2008Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai
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Publication number: 20040255589Abstract: A gas turbine combustor includes a liquid fuel nozzle for jetting out liquid fuel; a pre-mixture chamber wall provided with the liquid fuel nozzle at a center thereof, having a hollow conical shape gradually spreading in the direction in which the fuel is jetted out, and defining a pre-mixture chamber therein; a plurality of air inlet holes bored through the pre-mixture chamber wall and introducing the combustion air to the pre-mixture chamber such that angles at which the combustion air is introduced to the pre-mixture chamber through the air inlet holes are deflected at least toward the circumferential direction of the pre-mixture chamber wall; and a plurality of gaseous fuel nozzles disposed around the pre-mixture chamber wall in an opposing relation respectively to the plurality of air inlet holes and jetting out gaseous fuel substantially coaxially with axes of the air inlet holes.Type: ApplicationFiled: June 17, 2004Publication date: December 23, 2004Inventors: Shouhei Yoshida, Yoshitaka Hirata, Kazuyuki Itou, Tomoya Murota, Hiroshi Inoue, Tomohiro Asai