Patents Assigned to Ihi Aerospace Co., Ltd.
  • Publication number: 20220169359
    Abstract: A joint structure includes a connection member provided between a reinforced member and a reinforcing member and connecting both of them to each other. The connection member includes a first coupling portion and a second coupling portion that are coupled to one and another of the reinforced member and the reinforcing member, respectively. The first coupling portion is coupled to a joint portion of one of the reinforced member and the reinforcing member by an adhesive or welding. The first coupling portion and the joint portion are shaped so as to be caught by each other in a joining direction in which the reinforced member and the reinforcing member are joined to each other.
    Type: Application
    Filed: April 12, 2019
    Publication date: June 2, 2022
    Applicant: IHI Aerospace Co., Ltd.
    Inventors: Takashi HARADA, Yu SHIGENARI, Ikuo OKUMURA, Toyoharu AKIMOTO
  • Publication number: 20220134688
    Abstract: Produce prepreg with a matrix resin adhering to the cloth. Arranging a release sheet on each surface of the cloth; passing the cloth and a pair of the release sheets through a gap portion positioned in a clearance of a pair of heating rollers to be overlaid on each other and supplying the matrix resin to be accumulated above the gap portion of the heating rollers and between the pair of release sheets; and adjusting an interval of the pair of heating rollers to thereby control an adhesion amount of the matrix resin.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 5, 2022
    Applicant: IHI AEROSPACE CO., LTD.
    Inventors: Hiroyuki SATO, Yu SHIGENARI, Tatsuya KADO, Kazuyuki ORIHARA
  • Publication number: 20220010753
    Abstract: A laser ignition device includes an excitation light source that generates excitation light, and a pulsed laser oscillator connected to the excitation light source, wherein the pulsed laser oscillator generates a plurality of pulsed light beams at a time of one ignition to produce an initial flame.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Applicants: IHI CORPORATION, IHI AEROSPACE Co., Ltd., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takahisa NAGAO, Mitsunori ITOU, Jun IZAWA, Yoshiki MATSUURA, Masahiro SASAKI, Takunori TAIRA
  • Publication number: 20220009178
    Abstract: A fiber reinforced plastic (FRP) molding system in which FRP material, having stacked prepregs, is molded to manufacture an arc-shaped FRP component. The FRP molding system comprises inner and outer jig plates, a partial pressing device, and transfer devices. The jig plates are arc-shaped members having outer and inner surfaces that respectively fit with inner and outer surface shapes of the FRP component. The FRP material is sandwiched between the jig plates to form an integrated jig plate. The partial pressing device intermittently compresses a portion of the integrated jig plate in a radial direction orthogonal to an arc of the FRP component so that the FRP component is partially molded. The transfer devices intermittently move the compressed portion of the integrated jig plate by the partial pressing device. By repeating the partial pressing and the transport, the entire integrated jig plate is compressed to form the FRP component.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 13, 2022
    Applicant: IHI AEROSPACE CO., LTD.
    Inventors: Takashi HARADA, Yu SHIGENARI, Toyoharu AKIMOTO
  • Publication number: 20220001630
    Abstract: An FRP continuous molding apparatus continuously molds an FRP from a layered sheet that includes prepreg sheets layered over each other. The prepreg sheets each include thermoplastic resin and reinforcement fibers, and differ from each other in fiber orientation. The FRP continuous molding apparatus includes: sheet feeding devices continuously feeding the layered sheets in a feeding direction; a layering device layering, over each other, the layered sheets fed from the sheet feeding devices, and thereby forming a sheet layered body; and a shaping mechanism molding the sheet layered body into an FRP while the sheet layered body is being transferred in the feeding direction. The FRP has a cross section that is a target shape. The sheet layered body includes the reinforcement fibers whose fiber orientation is the feeding direction.
    Type: Application
    Filed: March 8, 2019
    Publication date: January 6, 2022
    Applicant: IHI AEROSPACE CO., LTD.
    Inventors: Yu SHIGENARI, Takashi HARADA, Toyoharu AKIMOTO
  • Patent number: 11148978
    Abstract: A method for producing a silicon-carbide-based composite. In the production of a silicon-carbide-based composite comprising a carbon-fiber-reinforced/silicon carbide composite (a C/SiC composite) or a silicon-carbide-fiber-reinforced/silicon carbide composite (a SiC/SiC composite), a film boiling method is carried out, using an organosilicon polymer having a chlorine-free polysilane skeleton and/or a chlorine-free polycarbosilane skeleton. The organosilicon polymer is in a liquid form at room temperature. The molar ratio of Si and C in the matrix of the C/SiC composite or the SiC/SiC composite is Si:C=1:1.08 to 1:1.43.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: October 19, 2021
    Assignee: IHI AEROSPACE CO., LTD.
    Inventors: Michimasa Uda, Hiroshi Yamauchi, Haruhiko Soeda
  • Publication number: 20210253278
    Abstract: An emergency deorbit device provided in a satellite flying on an orbit around the earth includes a propulsion module generating thrust for separating the satellite from the orbit, a reception unit receiving a repeat signal repeatedly sent at an interval from an sending unit of a satellite bus in the satellite, a detection unit outputting a detection signal when the reception unit does not receive the repeat signal in a set time period or when the reception unit receives a deorbit command from the sending unit or from an outside of the satellite, an activation device performing, in response to the detection signal, processing for activating the propulsion module, and a power supply device provided separately from a power supply device of the satellite bus and supplying electric power to the reception unit, the detection unit, and the activation device.
    Type: Application
    Filed: July 27, 2018
    Publication date: August 19, 2021
    Applicants: IHI Aerospace Co., Ltd., Patchedconics, LLC
    Inventors: Kengo YAMAMOTO, Junichiro KAWAGUCHI
  • Patent number: 10829249
    Abstract: 1. A satellite constellation forming method comprises a satellite deployment step S2, a spacecraft acceleration step S4, a spacecraft orbiting step S5 and spacecraft deceleration step, and the aforementioned steps are repeated in order. In the satellite deployment step S2, deploying one of the satellites into the circular orbit 2 from the spacecraft 10 on the circular orbit 2. In the spacecraft acceleration step S4, accelerating the spacecraft 10 and switching the orbit from the circular orbit 2 to a spacecraft transfer orbit 3 in the same orbit plane. In the spacecraft orbiting step S5, making the spacecraft 10 orbit along the spacecraft transfer orbit 3 a plurality of times. In the spacecraft deceleration step, decelerating the spacecraft 10 and switching the orbit from the spacecraft transfer orbit 3 to the circular orbit 2 in the same orbit plane.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: November 10, 2020
    Assignee: IHI AEROSPACE CO., LTD.
    Inventors: Junichi Amimoto, Masanobu Fujimura
  • Patent number: 10651563
    Abstract: A corner reflector includes annular balloons, which, when gas is supplied to the inside, annularly expand, and radio wave reflective films each developed to a plane by the expansion of the annular balloons. The three annular balloons are provided so as to be orthogonal to each other in the expansion. A constraint fabric wound around each annular balloon is provided. The constraint fabric includes an inner peripheral side fabric portion located on the side of a virtual central axis of the annular balloon and extending in the annular direction around the virtual central axis, and an outer peripheral side fabric portion located on the side opposite to the virtual central axis and extending in the annular direction. The elongation degree of the outer peripheral side fabric portion in the annular direction is higher than the elongation degree of the inner peripheral side fabric portion in the annular direction.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 12, 2020
    Assignees: IHI AEROSPACE CO., LTD, SEIREN CO., LTD.
    Inventors: Mamoru Mori, Hisanao Kataoka, Sachiyo Sakagawa, Susumu Takagi
  • Publication number: 20200031722
    Abstract: A method for producing a silicon-carbide-based composite. In the production of a silicon-carbide-based composite comprising a carbon-fiber-reinforced/silicon carbide composite (a C/SiC composite) or a silicon-carbide-fiber-reinforced/silicon carbide composite (a SiC/SiC composite), a film boiling method is carried out, using an organosilicon polymer having a chlorine-free polysilane skeleton and/or a chlorine-free polycarbosilane skeleton. The organosilicon polymer is in a liquid form at room temperature. The molar ratio of Si and C in the matrix of the C/SiC composite or the SiC/SiC composite is Si:C=1:1.08 to 1:1.43.
    Type: Application
    Filed: February 23, 2018
    Publication date: January 30, 2020
    Applicant: IHI AEROSPACE CO., LTD.
    Inventors: Michimasa UDA, Hiroshi YAMAUCHI, Haruhiko SOEDA
  • Publication number: 20190260056
    Abstract: A regenerative fuel cell system includes: a fuel cell that causes hydrogen from a hydrogen storage unit and oxygen from an oxygen storage unit to react with each other to generate electricity; a water electrolysis device that electrolyze water discharged from the fuel cell to produce hydrogen and oxygen; a first gas reaction device that causes the hydrogen produced by the water electrolysis device and oxygen accompanying the hydrogen produced by the water electrolysis device to react with each other and return the hydrogen remaining after the reaction to the hydrogen storage unit; and a second gas reaction device that causes the oxygen produced by the water electrolysis device and hydrogen accompanying the oxygen produced by the water electrolysis device to react with each other and return the oxygen remaining after the reaction to the oxygen storage unit.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicants: IHI CORPORATION, IHI AEROSPACE CO., LTD.
    Inventors: Yusaku Yachi, Noboru Shinozaki
  • Patent number: 10294961
    Abstract: A cylindrical case main body, and a connecting ring body fitted and fixed to a first end of the case main body and having an annular groove open in the centrifugal direction, are provided. The connecting ring body has a notch open to a side opposite to a second end of the case main body. Into the notch of the connecting ring body, a reinforcement body is fitted, and the reinforcement body has an arc-shaped groove continuing to the annular groove of the connecting ring body in a state where the reinforcement body is fitted into the notch of the connecting ring body. In addition to attaining high rigidity, reduction in weight and reduction in manufacturing cost can also be achieved.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: May 21, 2019
    Assignees: IHI CORPORATION, IHI AEROSPACE CO., LTD.
    Inventors: Agamu Tanaka, Yuji Mori, Takashi Harada, Ikuo Okumura, Kenji Ishimoto
  • Publication number: 20190143305
    Abstract: There are provided a stable HAN-based propellant decomposition catalyst in which the heat resistance is sufficient and the change in HAN-based propellant decomposition activity over time is also small so that a HAN-based propellant having low toxicity can be used for a thruster, and a method for producing the same, and a one-component thruster including a HAN-based propellant decomposition catalyst. A HAN-based propellant decomposition catalyst containing a hexaaluminate type oxide containing a platinum group element, and a method for producing the same, and a one-component thruster including a HAN-based propellant decomposition catalyst are used.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Applicants: IHI CORPORATION, IHI AEROSPACE CO., LTD.
    Inventors: Hiroyuki KAMATA, Shinji IGARASHI, Kengo YAMAMOTO, Aporo FUKUCHI
  • Patent number: 10280866
    Abstract: A fuel supply device according to the present invention comprises a first fuel pump for forcing fuel from a fuel tank to a fuel passage, a first electric motor for driving the first fuel pump, a second fuel pump for forcing fuel from the fuel tank to the fuel passage, a second electric motor for driving the second fuel pump, a supply flow rate sensor for detecting flow rate in the supply passage, and a control device for controlling the flow rate in the supply passage to follow a desired value thereof, by regulating rotational speeds of the first and second electric motors depending on a difference between the desired value and a detected value of flow rate in the supply passage.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: May 7, 2019
    Assignee: IHI AEROSPACE CO., LTD.
    Inventors: Hitoshi Oyori, Noriko Morioka
  • Patent number: 10280939
    Abstract: A cylindrical case body made of a composite material; a linking ring made of aluminum, fitted and fixed to a rear end portion of the case body and having an annular groove which receives a reverse thrust load from a reverse thrust transmission body; and ring constituent bodies made of titanium alloy, each of which is placed in the rear end portion of the case body and has an arcuate groove which undertakes a reverse thrust load larger than that received by the linking ring, are provided in a fan case. The ring constituent bodies are fitted in notches of the linking ring and are brought into contact with outward receiving walls of the linking ring. The ring constituent bodies are positioned relative to the case body in the axis direction and in the radial direction, and the annular groove and the arcuate grooves continue to each other.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: May 7, 2019
    Assignees: IHI CORPORATION, IHI AEROSPACE CO., LTD.
    Inventors: Agamu Tanaka, Yuji Mori, Takashi Harada, Ikuo Okumura, Kenji Ishimoto
  • Patent number: 10273829
    Abstract: A cylindrical case includes a case main body made of a composite material of reinforcing fibers impregnated with a thermosetting resin, and an outward flange on the case main body. The outward flange includes: a bonding layer; a foundation layer disposed on the bonding layer; one flange constituting layer having a leg layer which is laminated from one slope surface of the foundation layer to the bonding layer and a wall layer which rises from the one slope surface; and the other flange constituting layer having a leg layer which is laminated from the other slope surface of the foundation layer to the bonding layer and a wall layer which rises from the other slope surface. The foundation layer is formed by laminating roving layers, while the flange constituting layers are formed by laminating a plurality of biaxial fabric layers including a biaxial fabric of a non-crimp structure.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: April 30, 2019
    Assignees: IHI Corporation, IHI Aerospace Co., Ltd.
    Inventors: Tsutomu Murakami, Ikuo Okumura, Yuu Shigenari, Takashi Harada, Yusuke Dan
  • Patent number: 10265908
    Abstract: A blank sheet including a plurality of main fibers arranged in parallel with each other, auxiliary fibers and a resin that consolidates the fibers is heated to a temperature at which the resin softens, and then pressed against a fan blade mold with the direction of the main fibers aligned with the longitudinal direction of the fan blade mold. The fan blade mold is shaped so that the length thereof in the longitudinal direction along the surface of a center part thereof in the width direction is shorter than the length thereof in the longitudinal direction along the surface of end parts thereof in the width direction. When the blank sheet is pressed against the fan blade mold, a center part in the width direction of the blank sheet at an end part in the longitudinal direction is pulled with a greater force than end parts in the width direction of the blank sheet at the end part in the longitudinal direction, thereby preventing occurrence of wrinkling.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 23, 2019
    Assignees: IHI Corporation, IHI AEROSPACE CO., LTD.
    Inventors: Takaomi Inada, Hideo Morita, Hiroyuki Yagi, Tsutomu Murakami, Shinichi Tanaka
  • Patent number: 10029807
    Abstract: A spacecraft 10 includes wings 11 or an airframe 12 which generates lift in an atmosphere 2, a thruster 14 which accelerates or decelerates rotating speed in an orbit, an attitude controller 16 which controls an attitude of the airframe 12, and an orbital plane controller 18 which controls the orbital plane change. The orbital plane controller causes the spacecraft 10 to enter the earth's atmosphere 2 within a pre-change orbital plane Fb (A?B?C), changes the orbital plane by using the lift of the wings 11 or airframe 12 in the earth's atmosphere 2 (C?D?E), and then lifts the spacecraft 10 up to the post-change orbital altitude (E?F).
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: July 24, 2018
    Assignee: IHI AEROSPACE CO., LTD.
    Inventors: Masanobu Fujimura, Fumitaka Sugimura, Junichi Amimoto, Tetsuya Takada, Hirotake Morisaki
  • Patent number: 9950784
    Abstract: Provided is a wheel drive system for aircraft RS including a motor 2 that is connected to a wheel 12, and provided with two voltage supply lines L1 and L2 for supplying the voltages Vta and Vpr with varying the length of a winding 21 to be energized; a voltage supply unit for supplying the voltage Vta and Vpr to the two voltage supply lines L1 and L2; and a control unit 8 for controlling the voltage supply unit, wherein the control unit 8 is configured to select one of the two voltage supply lines L1 and L2, and supply the voltage Vta or Vpr, by controlling the voltage supply unit.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: April 24, 2018
    Assignees: SINFONIA TECHNOLOGY CO., LTD., IHI AEROSPACE CO., LTD., SUMITOMO PRECISION PRODUCTS CO., LTD.
    Inventors: Hiroshi Saito, Nobuyuki Nakanishi, Hitoshi Oyori, Masayuki Takada
  • Patent number: 9896963
    Abstract: A coupling support member including a pair of divided pieces is placed in a coupling part between a vane proximal end portion of a guide vane and an attachment flange, and the pair of divided pieces are joined to the vane proximal end portion from both the sides in the vane thickness direction. A groove is formed in one end portion joint surface of the coupling support member, a linear protrusion is formed on the other end portion joint surface, the vane proximal end portion is formed into a concavo-convex shape, a linear protrusion that is engaged with the groove which is formed in the end portion joint surface is formed on a joint surface to the one end portion joint surface, a groove that is engaged with the linear protrusion formed on the end portion joint surface is formed in the joint surface to the other end portion joint surface.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 20, 2018
    Assignees: IHI CORPORATION, IHI AEROSPACE CO., LTD
    Inventors: Takaomi Inada, Shinichi Tanaka