Patents by Inventor Takeo Saito

Takeo Saito 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: 10641630
    Abstract: The purpose is to enhance the measurement stability of a flow rate detection unit in a physical quantity detection device by branching an auxiliary passage in which the flow rate detection unit is disposed into first to third passages and providing the third flow passage at an upstream part of the second flow passage. A physical quantity detection device has a circuit board provided with at least one detection unit for detecting the physical quantity of a gas flowing through a main passage and a circuit unit for computational processing of the physical quantity detected by the detection unit, a housing for accommodating the circuit board, a cover fixed to the housing, and an auxiliary passage formed by both the housing and cover that is configured to branch passages from a first passage to a third passage.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 5, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro Miki, Hiroaki Hoshika, Naoki Saito, Takayuki Yogo, Takeo Hosokawa
  • Publication number: 20200052577
    Abstract: A control device of a rotary electric machine capable of preventing occurrence of electrical resonance when a conversion operation abnormality of a DC voltage converter occurs is provided. In a case that the DC voltage converter stops a conversion operation and the conversion operation abnormality that input/output voltages become equal occurs, when a vehicle speed proportional to an electric motor rotation number exceeds a torque limit start vehicle speed, i.e., when the electric motor rotation number exceeds a torque limit start rotation number, a torque limit control for limiting an output torque of the electric motor is executed. The torque limit start vehicle speed is set to a vehicle speed corresponding to a lower limit frequency of a predetermined frequency range where there is a high likelihood of an electrical resonance occurring in the DC voltage converter when the conversion operation abnormality occurs.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Takeo SAITO, Yasuhiko KONDO
  • Publication number: 20190279026
    Abstract: An image generation apparatus includes a processing circuit and a memory storing at least one computational image. The at least one computational image is a light-field image, a compressive sensing image, or a coded image. The processing circuit (a1) identifies a position of an object in the at least one computational image using a classification device, (a2) generates, using the at least one computational image, a display image in which an indication for highlighting the position of the object is superimposed, and (a3) outputs the display image.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 12, 2019
    Inventors: SATOSHI SATO, MASAHIKO SAITO, TAKEO AZUMA, KUNIO NOBORI, NOBUHIKO WAKAI
  • Publication number: 20190153892
    Abstract: A thermal insulation coating member comprises: a substrate having a surface; a binding layer on the surface; and a thermal insulation layer on the binding layer. The thermal insulation layer includes: a first ceramic layer having a plurality of first flat pores, the first flat pores being inclined at a first angle with respect to the surface and extending in a first direction; and a second ceramic layer having a plurality of second flat pores, the second flat pores being inclined at a second angle with respect to the surface and extending in a second direction. The second angle differs from the first angle, the second direction differing from the first direction, or the second angle and the second direction respectively differing from the first angle and the first direction.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 23, 2019
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Satoru KUBOYA, Kunihiko WADA, Daizo SAITO, Masataka TAMURA, Nobuhiro OKIZONO, Iwataro SATO, Hideyuki MAEDA, Takeo TAKAHASHI
  • Publication number: 20190041454
    Abstract: An inspection system, for inspecting an inspection target on a stage in a low temperature environment, includes a system main body including an inspection apparatus having inspection chambers each accommodating an inspection unit for performing electrical inspection of an inspection target on a stage and having inspection spaces arranged in multiple stages vertically, the plurality of inspection chambers being arranged horizontally, and a loader unit for transferring the inspection target with respect to the stage of the inspection unit; and a coolant supply unit configured to supply a coolant to the stage. The system main body further includes coolant line arrangement spaces, in which coolant lines extending from the coolant supply unit are arranged, provided above or below the respective inspection spaces to correspond to the respective inspection spaces, and the coolant lines are directed toward the corresponding inspection spaces in each of the coolant line arrangement spaces.
    Type: Application
    Filed: July 30, 2018
    Publication date: February 7, 2019
    Inventors: Shuji AKIYAMA, Takeo SAITO, Eiichi MATSUZAWA
  • Publication number: 20180364300
    Abstract: There is provided a wafer inspection device that is capable of bringing a polishing wafer into proper contact with probes without lowering throughput. The total value T of a thickness t1 of a polishing plate, a thickness t2 of a polishing wafer and a magnitude t3 extending from a lower surface of a main body of a pogo frame to a lower end of each probe of a probe card is set to be larger than a magnitude t4 of a lip seal protruding from an upper surface of a chuck top.
    Type: Application
    Filed: October 14, 2016
    Publication date: December 20, 2018
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yutaka AKAIKE, Takeo SAITO
  • Patent number: 10125992
    Abstract: A gas turbine combustor includes a plurality of fuel nozzles, a premixing plate, and a plurality of annular flow sleeves. The plurality of annular flow sleeves includes an inner annular flow sleeve and an outer annular flow sleeve. The plurality of annular flow sleeves is formed to divide an airflow passage into a plurality of flow passages including an inner and an outer circumferential flow passages. The airflow passage is formed around the plurality of fuel nozzles. The airflow passage extends from an upstream side of the plurality of fuel nozzles to fuel injecting ports of the fuel nozzles. The plurality of annular flow sleeves rectifies a flow of air in each of the flow passages and guiding the flow of air to the fuel injecting ports of the fuel nozzles.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: November 13, 2018
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yasuhiro Wada, Toshifumi Sasao, Takeo Saito
  • Patent number: 9464809
    Abstract: Disclosed is a gas turbine combustor equipped with a burner constructed to fire a plurality of combustors at the same time at a fuel/air ratio suitable for gas turbine ignition. A plurality of supports mounted for fixing an air injection hole plate to the combustor are provided at substantially the same phase position as that of cross fire tubes, and combustion air allocations are adjusted. Thus, flame propagation during gas turbine ignition is accelerated and all combustor cans are fired. In addition, porous plates are disposed downstream of the supports and the combustion air allocations are readjusted. Furthermore, air injection holes proximate to the cross fire tubes are particularly reduced in diameter to further adjust the combustion air allocations.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: October 11, 2016
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Kazuki Abe, Tomomi Koganezawa, Takeo Saito, Keisuke Miura
  • Publication number: 20160271715
    Abstract: A solder-ball-supplying method, a solder-ball-supplying device and a solder-bump-forming method, which are flux-less and capable of being also applied to electrodes having a fine pitch. A substrate on which a resist with openings is positioned on electrode(s), which has a diameter of 10 through 30 ?m, of the substrate is prepared. Next, plural solder balls SBL each having a grain diameter of 1 through 10 ?m are shaken down to the opening(s) of the resist from a hopper and filled therein. Next, by sliding and moving a squeegee on an upper surface of the resist along X-Y direction, the solder balls SBL shaken down to the resist other than the openings are scrapped and removed and the solder balls SBL in the openings and around them are pushed into the openings by the squeegee.
    Type: Application
    Filed: June 26, 2013
    Publication date: September 22, 2016
    Inventors: Kaichi Tsuruta, Takeo Saito, Manabu Muraoka, Hiroki Oshima
  • Publication number: 20150135717
    Abstract: A gas turbine combustor including a cluster-type burner is adapted to stabilize a combustion state by supplying a desired flow rate of combustion air to inner circumferential and outer circumferential fuel nozzle regions. A burner section of the combustor includes a plurality of fuel nozzles 2 and a premixing plate 4 in which are formed a plurality of premixing passages 3 each positioned at a downstream side of the corresponding one of the fuel nozzles 2, injected fuel from the plurality of fuel nozzles 2 being mixed with air in the premixing passage 3 before being supplied to a combustion chamber and burnt therein. The burner section also includes guide vanes 34, 35, 36 that rectify a flow of air and guide this air flow from an upstream side of the fuel nozzles 2 to fuel injecting ports of the fuel nozzles 2; wherein the guide vanes guide a desired amount of air to the fuel injecting ports of the fuel nozzles and stabilize combustion.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Yasuhiro WADA, Toshifumi SASAO, Takeo SAITO
  • Patent number: 9027349
    Abstract: A combustor of the prior art that defines the outlet position and direction of an air hole and suppresses adhesion of flame to an air hole outlet can reduce a discharge amount of NOx by increasing a distance over which fuel and air are mixed with each other. However, such a combustor is not sufficiently discussed for measures to suppress the occurrence of combustion oscillation resulting from the variation of a flame surface. A combustor 2 according to the present invention includes a combustion chamber 5 to which fuel and air are supplied; air holes 32 adapted to supply air to the combustion chamber 5; fuel nozzles 25 adapted to supply gaseous fuel to the air holes 32; and orifices 24 adapted to allow the gaseous fuel supplied to the air holes 32 to cause a pressure drop.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Keisuke Miura, Tomomi Koganezawa, Satoshi Dodo, Takeo Saito
  • Publication number: 20140007582
    Abstract: Disclosed is a gas turbine combustor equipped with a burner constructed to fire a plurality of combustors at the same time at a fuel/air ratio suitable for gas turbine ignition. A plurality of supports mounted for fixing an air injection hole plate to the combustor are provided at substantially the same phase position as that of cross fire tubes, and combustion air allocations are adjusted. Thus, flame propagation during gas turbine ignition is accelerated and all combustor cans are fired. In addition, porous plates are disposed downstream of the supports and the combustion air allocations are readjusted. Furthermore, air injection holes proximate to the cross fire tubes are particularly reduced in diameter to further adjust the combustion air allocations.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 9, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Kazuki ABE, Tomomi KOGANEZAWA, Takeo SAITO, Keisuke MIURA
  • Patent number: 8607573
    Abstract: A combustor includes a chamber mixing and burning fuel and air and an air hole plate disposed on a wall surface of the chamber. The air hole plate includes a plurality of rows disposed concentrically of a plurality of air holes jetting coaxial jets of fuel and air into the chamber. A first fuel nozzle and a second fuel nozzle are disposed near a fuel hole for jetting fuel into an air hole row on an inner peripheral side. The first fuel nozzle is structured to suppress turbulence of surrounding air flow and the second fuel nozzle is structured to promote turbulence of a surrounding air flow. In accordance with the aspect of the present invention, good flame stability can be maintained while further reducing NOx in a combustor using coaxial jets.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: December 17, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Miura, Hiroshi Inoue, Kazuhito Koyama, Takeo Saito
  • Patent number: 8499541
    Abstract: A two-shaft gas turbine is capable of starting premixed combustion without extinguishing a flame. The two-shaft gas turbine includes a combustor and a gas generator controller. The combustor has a premix burner that includes combustion regions in which premixed combustion is to be carried out individually. The gas generator controller controls the combustor. In a method for starting the premixed combustion in the combustor, the gas generator controller selects at least one of the combustion regions in which the premixed combustion is to be carried out, on the basis of a fuel-air ratio, and starts premix combustion in the selected combustion region or separately in each of the selected combustion regions. Further, as the fuel-air ratio is increased, the controller increases the number of the selected region in which the premixed combustion is carried out.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: August 6, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Ryo Kawai, Hidetaro Murata, Takeo Saito, Nobuaki Kizuka, Kenji Nanataki
  • Patent number: 8371125
    Abstract: A burner is provided that has high flame stability and reduces NOx emissions. In the burner, air holes of an air hole member have a central axis inclined relative to a burner central axis. The leading end portion of a first fuel nozzle is configured to be able to suppress turbulence of air-flow flowing on the outer circumference side of the first fuel nozzle. The tip of the first fuel nozzle is located on a fuel jetting-out directional downstream side of the inlet of the fuel hole. The tip of the second fuel nozzle is located on a fuel jetting-out directional downstream side of the air hole inlet.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: February 12, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Miura, Hiroshi Inoue, Kazuhito Koyama, Takeo Saito, Satoshi Dodo
  • Publication number: 20120192568
    Abstract: A combustor of the prior art that defines the outlet position and direction of an air hole and suppresses adhesion of flame to an air hole outlet can reduce a discharge amount of NOx by increasing a distance over which fuel and air are mixed with each other. However, such a combustor is not sufficiently discussed for measures to suppress the occurrence of combustion oscillation resulting from the variation of a flame surface. A combustor 2 according to the present invention includes a combustion chamber 5 to which fuel and air are supplied; air holes 32 adapted to supply air to the combustion chamber 5; fuel nozzles 25 adapted to supply gaseous fuel to the air holes 32; and orifices 24 adapted to allow the gaseous fuel supplied to the air holes 32 to cause a pressure drop.
    Type: Application
    Filed: January 25, 2012
    Publication date: August 2, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Keisuke MIURA, Tomomi Koganezawa, Satoshi Dodo, Takeo Saito
  • Publication number: 20120137694
    Abstract: A burner is provided that has high flame stability and reduces NOx emissions. In the burner, air holes of an air hole member have a central axis inclined relative to a burner central axis. The leading end portion of a first fuel nozzle is configured to be able to suppress turbulence of air-flow flowing on the outer circumference side of the first fuel nozzle. The tip of the first fuel nozzle is located on a fuel jetting-out directional downstream side of the inlet of the fuel hole. The tip of the second fuel nozzle is located on a fuel jetting-out directional downstream side of the air hole inlet.
    Type: Application
    Filed: February 3, 2012
    Publication date: June 7, 2012
    Applicant: HITACHI, LTD.
    Inventors: Keisuke MIURA, Hiroshi INOUE, Kazuhito KOYAMA, Takeo SAITO, Satoshi DODO
  • Publication number: 20120094239
    Abstract: A combustor includes a chamber mixing and burning fuel and air and an air hole plate disposed on a wall surface of the chamber. The air hole plate includes a plurality of rows disposed concentrically of a plurality of air holes jetting coaxial jets of fuel and air into the chamber. A first fuel nozzle and a second fuel nozzle are disposed near a fuel hole for jetting fuel into an air hole row on an inner peripheral side. The first fuel nozzle is structured to suppress turbulence of surrounding air flow and the second fuel nozzle is structured to promote turbulence of a surrounding air flow. In accordance with the aspect of the present invention, good flame stability can be maintained while further reducing NOx in a combustor using coaxial jets.
    Type: Application
    Filed: December 28, 2011
    Publication date: April 19, 2012
    Applicant: HITACHI, LTD.
    Inventors: Keisuke MIURA, Hiroshi INOUE, Kazuhito KOYAMA, Takeo SAITO
  • Patent number: 8127549
    Abstract: A burner is provided that has high flame stability and reduces NOx emissions. In the burner, air holes of an air hole member have a central axis inclined relative to a burner central axis. The leading end portion of a first fuel nozzle is configured to be able to suppress turbulence of air-flow flowing on the outer circumference side of the first fuel nozzle. The tip of the first fuel nozzle is located on a fuel jetting-out directional downstream side of the inlet of the fuel hole. The tip of the second fuel nozzle is located on a fuel jetting-out directional downstream side of the air hole inlet.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: March 6, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Miura, Hiroshi Inoue, Kazuhito Koyama, Takeo Saito, Satoshi Dodo
  • Patent number: 8104284
    Abstract: A combustor includes a chamber mixing and burning fuel and air and an air hole plate disposed on a wall surface of the chamber. The, air hole plate includes a plurality of rows disposed concentrically of a plurality of air holes jetting coaxial jets of fuel and air into the chamber. A first fuel nozzle and a second fuel nozzle are disposed near a fuel hole for jetting fuel into an air hole row on an inner peripheral side. The first fuel nozzle is structured to suppress turbulence of a surrounding air flow and the second fuel nozzle is structured to promote turbulence of a surrounding air flow. In accordance with the aspect of the present invention, good flame stability can be maintained while further reducing NOx in a combustor using coaxial jets.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: January 31, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Miura, Hiroshi Inoue, Kazuhito Koyama, Takeo Saito