Patents by Inventor Youichi Hattori
Youichi Hattori 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: 8754728Abstract: A relay includes: a pair of fixed terminals, each being arranged to have a fixed contact on a one-end face; a movable contact member arranged to have a pair of movable contacts that are correspondingly opposed to the respective fixed contacts; and a driving structure operated to move the movable contact member. In a moving direction of the movable contact member, a side where the fixed contacts are located is called a first side, and a side where the movable contacts are located is called a second side. The movable contact member includes: a center section located between the pair of movable contacts and located on the second side relative to the movable contacts; and a pair of extended sections located between the center section and the pair of movable contacts and extended in a direction including a component of the moving direction.Type: GrantFiled: October 31, 2011Date of Patent: June 17, 2014Assignee: NGK Spark Plug Co., Ltd.Inventors: Shinsuke Ito, Youichi Hattori, Norihiko Nadanami, Ryuji Inoue, Takeshi Mitsuoka, Takio Kojima, Taku Hirano
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Patent number: 8674796Abstract: A relay includes: a plurality of fixed terminals arranged to have fixed contacts; and a movable contact member arranged to have a plurality of movable contacts that are correspondingly opposed to the respective fixed contacts. The relay further includes: a driving structure operated to move the movable contact member such that the respective movable contacts come into contact with the corresponding fixed contacts; a plurality of first vessels provided corresponding to the respective fixed terminals and arranged to have insulating property; a second vessel joined with the plurality of first vessels; and an air-tight space formed by the plurality of fixed terminals, the plurality of first vessels and the second vessel to allow the movable contact member and the respective fixed contacts to be placed therein.Type: GrantFiled: October 31, 2011Date of Patent: March 18, 2014Assignee: NGK Spark Plug Co., Ltd.Inventors: Shinsuke Ito, Youichi Hattori, Norihiko Nadanami, Ryuji Inoue, Takeshi Mitsuoka, Takio Kojima
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Publication number: 20130214882Abstract: A relay includes: a pair of fixed terminals, each being arranged to have a fixed contact on a one-end face; a movable contact member arranged to have a pair of movable contacts that are correspondingly opposed to the respective fixed contacts; and a driving structure operated to move the movable contact member. In a moving direction of the movable contact member, a side where the fixed contacts are located is called a first side, and a side where the movable contacts are located is called a second side. The movable contact member includes: a center section located between the pair of movable contacts and located on the second side relative to the movable contacts; and a pair of extended sections located between the center section and the pair of movable contacts and extended in a direction including a component of the moving direction.Type: ApplicationFiled: October 31, 2011Publication date: August 22, 2013Applicant: NGK SPARK PLUG CO., LTD.Inventors: Shinsuke Ito, Youichi Hattori, Norihiko Nadanami, Ryuji Inoue, Takeshi Mitsuoka, Takio Kojima, Taku Hirano
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Publication number: 20130214884Abstract: A relay includes: a plurality of fixed terminals arranged to have fixed contacts; and a movable contact member arranged to have a plurality of movable contacts that are correspondingly opposed to the respective fixed contacts. The relay further includes: a driving structure operated to move the movable contact member such that the respective movable contacts come into contact with the corresponding fixed contacts; a plurality of first vessels provided corresponding to the respective fixed terminals and arranged to have insulating property; a second vessel joined with the plurality of first vessels; and an air-tight space formed by the plurality of fixed terminals, the plurality of first vessels and the second vessel to allow the movable contact member and the respective fixed contacts to be placed therein.Type: ApplicationFiled: October 31, 2011Publication date: August 22, 2013Applicant: NGK SPARK PLUG CO., LTD.Inventors: Shinsuke Ito, Youichi Hattori, Norihiko Nadanami, Ryuji Inoue, Takeshi Mitsuoka, Takio Kojima
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Publication number: 20130214881Abstract: A relay includes a pair of fixed terminals arranged to respectively have fixed contacts, a movable contact member arranged to have a pair of movable contacts, a driving structure operated to move the movable contact member and a magnet arranged to extinguish an arc. The movable contact member has a center section located between the pair of movable contacts. The magnet is placed on at least one of a first side and a second side that face each other across a predetermined face including the movable contact member and the pair of fixed terminals electrically connected by the movable contact member. The magnet is arranged to have a magnitude relation that a center area where the center section is located has a lower magnetic flux density than movable contact portions where the pair of movable contacts are located.Type: ApplicationFiled: October 31, 2011Publication date: August 22, 2013Applicant: NGK SPARK PLUG CO., LTD.Inventors: Shinsuke Ito, Youichi Hattori, Norihiko Nadanami, Ryuji Inoue, Takeshi Mitsuoka, Takio Kojima
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Patent number: 7712349Abstract: The object of the present invention is to provide a gas sensor in which a gas detection element is mounted on a wiring substrate; in which a protective cap having gas inlets formed therein is attached to the wiring substrate; and which has a structure capable of effectively preventing emanation of gas from the wiring substrate and the protective cap. A gas sensor comprises a gas detecting element on a writing board where a protective cap with air vents is mounted. The sensor effectively prevents a gas from emanating from the wiring board and the protective cap. The wiring board where a plurality of gas detecting elements (8,9) are to be mounted is formed of a ceramic wiring board (2) excellent in heat resistance. The protective cap (3) having air vents (31 to 39) is formed of a metal excellent in heat resistance. The metal protective cap (3) is fitted to the ceramic wiring board (2) instead of using adhesive. In this way a gas sensor (1) is manufactured.Type: GrantFiled: December 1, 2004Date of Patent: May 11, 2010Assignee: NGK Spark Plug Co., Ltd.Inventors: Hayato Katsuda, Youichi Hattori, Yuichi Kouyama, Takio Kojima
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Patent number: 7367192Abstract: In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 into the condenser 25, bypassing the steam turbine; and HRSG HP turbine bypass system 2 and HRSG LP turbine bypass system 3 which connect the HP pipe 70 and LP pipe 71 of the heat recovery steam generator, respectively.Type: GrantFiled: May 5, 2005Date of Patent: May 6, 2008Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Youichi Hattori, Taiji Inui
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Publication number: 20070107493Abstract: The object of the present invention is to provide a gas sensor in which a gas detection element is mounted on a wiring substrate; in which a protective cap having gas inlets formed therein is attached to the wiring substrate; and which has a structure capable of effectively preventing emanation of gas from the wiring substrate and the protective cap. A gas sensor comprises a gas detecting element on a writing board where a protective cap with air vents is mounted. The sensor effectively prevents a gas from emanating from the wiring board and the protective cap. The wiring board where a plurality of gas detecting elements (8,9) are to be mounted is formed of a ceramic wiring board (2) excellent in heat resistance. The protective cap (3) having air vents (31 to 39) is formed of a metal excellent in heat resistance. The metal protective cap (3) is fitted to the ceramic wiring board (2) instead of using adhesive. In this way a gas sensor (1) is manufactured.Type: ApplicationFiled: December 1, 2004Publication date: May 17, 2007Inventors: Hayato Katsuda, Youichi Hattori, Yuichi Kouyama, Takio Kojima
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Patent number: 6983585Abstract: In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 into the condenser 25, bypassing the steam turbine; and HRSG HP turbine bypass system 2 and HRSG LP turbine bypass system 3 which connect the HP pipe 70 and LP pipe 71 of the heat recovery steam generator, respectively.Type: GrantFiled: August 8, 2003Date of Patent: January 10, 2006Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Youichi Hattori, Taiji Inui
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Publication number: 20050198939Abstract: In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 into the condenser 25, bypassing the steam turbine; and HRSG HP turbine bypass system 2 and HRSG LP turbine bypass system 3 which connect the HP pipe 70 and LP pipe 71 of the heat recovery steam generator, respectively.Type: ApplicationFiled: May 5, 2005Publication date: September 15, 2005Inventors: Youichi Hattori, Taiji Inui
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Publication number: 20040025503Abstract: In a combined cycle plant that combines a conventional thermal power plant and a gas turbine plant, there is provided a dump system 1 that connects a main steam pipe 60 with the condenser 25 and dumps the steam generated by the boiler 10 into the condenser 25, bypassing the steam turbine; and HRSG HP turbine bypass system 2 and HRSG LP turbine bypass system 3 which connect the HP pipe 70 and LP pipe 71 of the heat recovery steam generator, respectively.Type: ApplicationFiled: August 8, 2003Publication date: February 12, 2004Inventors: Youichi Hattori, Taiji Inui
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Patent number: 6339926Abstract: A combined power plant, which has, as one of lines for supplying gas turbine cooling duty steam for cooling hot parts of a gas turbine, a line branching off from a steam line for leading high pressure steam from a high pressure superheater of a multi-pressure heat recovery steam generator to a high pressure steam turbine and leading a part of the high pressure steam to a supply line of the gas turbine cooling duty steam. The combined power plant is provided with a temperature lower limit value setting means for setting a lower limit value of an allowable temperature range for each gas turbine load and supplies a part of hot high temperature steam to the hot part of the gas turbine when the gas turbine cooling duty steam temperature is lower than the lower limit value of the allowable temperature range, thereby to raise the gas turbine cooling duty steam temperature.Type: GrantFiled: November 19, 1999Date of Patent: January 22, 2002Assignees: Hitachi, Ltd., Hitachi, Engineering Co., Ltd.Inventors: Hiraga Ichiro, Yuichi Iwamoto, Youichi Hattori, Shinichi Hoizumi
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Patent number: 5737911Abstract: An operating method of a combined plant that has several gas turbines and exhaust heat recovery boilers which generate steam by exhaust gas from the gas turbines wherein exhaust gas from each of the heat recovery boilers is passed through exhaust gas ducts and discharged from a common chimney. The method includes operating a combined plant having plural axes which may be suitably started or stopped and having means for discharging exhaust gas from three or more gas turbines through one common chimney. When the pressure at a joining part of an exit duct of an exhaust heat recovery boiler is a positive pressure or the atmospheric temperature is higher than a preset atmospheric temperature, gas turbines can be re-started or stopped without back-flow of exhaust gas of the gas turbine.Type: GrantFiled: January 17, 1996Date of Patent: April 14, 1998Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Shinichi Hoizumi, Hideyuki Sato, Satoshi Kusaka, Youichi Hattori, Hitoshi Ishimaru
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Patent number: 4891937Abstract: A heat recovery system for taking out a mechanical energy from hot exhaust gas from a gas turbine comprises at least two exhaust-gas boiler each having drum of an interior pressure different from each other, a steam turbine, a generator driven by the steam turbine, steam condenser and a plurality of heat exchanger. The heat exchanger is disposed in advance of the drum of the respective exhaust-gas boiler so that a feed-water circulating through the heat recovery system is pre-heated before entering into each drum by means of a cooling water which is used to cool blades of the gas turbine and becomes very hot.Type: GrantFiled: October 12, 1983Date of Patent: January 9, 1990Assignee: Hitachi, Ltd.Inventors: Yoshiki Noguchi, Youichi Hattori
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Patent number: 4743516Abstract: An integrated power plant based on a molten carbonate type fuel cell and a gas turbine combined plant comprising a gas turbine, a steam turbine and a common generator driven by the gas turbine and the steam turbine is disclosed, where a reformer for a fuel gas to the anode of the fuel cell is heated through heat exchange with the cathode off-gas from the fuel cell to obtain the necessary heat for the reforming, and a portion of the anode off-gas from the fuel cell is combusted in a separate burner to form a CO.sub.2 recycle to the cathode, while most of the remaining anode off-gas is supplied to the gas turbine combustor. The existing gas turbine combined plant can be used, as it is, without any substantial modification, and the present fuel cell power generation plant can be simply added thereto as an auxiliary unit.Type: GrantFiled: May 22, 1987Date of Patent: May 10, 1988Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.Inventors: Yoshiki Noguchi, Nobuo Nagasaki, Youichi Hattori, Kenji Yokosuka, Shigehisa Sugita
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Patent number: 4431343Abstract: A leg clamping device for a jack up platform having legs extending through the platform and a rack attached to each of the legs therealong and meshing with a drive pinion mounted on the platform. The leg clamping device comprises a plurality of clamp pieces engageable in the furrows of the rack, a bearing body fixedly mounted on the platform and supporting the clamp pieces individually movably toward or away from the rack, and locking means each provided for each of the clamp pieces individually for releasably locking the clamp piece in engagement with the rack furrow.Type: GrantFiled: December 29, 1982Date of Patent: February 14, 1984Assignee: Hitachi Shipbuilding & Engineering LimitedInventors: Tomoyoshi Uchiyama, Youichi Hattori, Kouki Koyanagi, Toshio Ohkoshi, Takaaki Ishihama, Kouji Toda