Patents by Inventor Hiroyuki Yagi

Hiroyuki Yagi 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).

  • Publication number: 20160194091
    Abstract: An electric conduction structure for conducting and diverting electric current from a vane main body of an cutlet guide vane into en exterior support structure is comprised of: a sheath of a metal covering a leading edge of the vane main body; and an electrically conductive pad of the metal comprising a contact portion so dimensioned as to have an overlap with an end of the sheath, and a washer portion into which a bolt for being tightened into the support structure is insertable, wherein any joints of a weld, a spot-weld, a solder, a bond by an electrically conductive paste and a crimp establish connection between the end of the sheath and the contact portion.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Applicant: IHI Corporation
    Inventors: Kenro OBUCHI, Hiroyuki Yagi, Hiroyuki Furukawa, Hideo Morita, Takaomi Inada
  • Publication number: 20160194971
    Abstract: A seal for sealing a gap between a vane and a liner of an outlet guide vane is comprised of: a joint section for joining with the liner; a flexible fillet section elongated from the joint section and tapering toward a tip so as to form a round corner between the vane and the liner when the tip is placed in contact with the vane; and a flexible rib section projecting from an inner surface and so dimensioned as to get in contact with an upper surface of an external structure for securing the vane to keep gas tightness.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Applicant: IHI Corporation
    Inventor: Hiroyuki YAGI
  • Publication number: 20160160659
    Abstract: A composite vane body formed of a composite material of a thermosetting resin or a thermoplastic resin, and reinforced fibers, and a metal sheath that is bonded to a leading edge section of the composite vane body via a soft adhesive to cover the leading edge section are included, and an adhesive filling section in which the soft adhesive is filled, a plurality of leading edge side contact sections that come into contact with a curved section corresponding to a leading edge of the metal sheath, and a plurality of protrusions that come into contact with a planar section corresponding to a vane surface of the metal sheath, with at least a same height as a thickness of a layer of a requisite amount of the soft adhesive filled in the adhesive filling section are formed in the leading edge section of the composite vane body. Attachment of the metal sheath to the leading edge section can be performed easily with high precision.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Applicant: IHI Corporation
    Inventors: Kenro OBUCHI, Hiroyuki YAGI
  • Publication number: 20160108747
    Abstract: A distal end portion and a proximal end portion of a guide vane formed from a composite material are respectively supported by connecting support bodies formed from a metal, and the connecting support bodies of the distal end portion and the proximal end portion are connected by a conductive wire while the conductive wire is passed through a space between a leading edge surface of the guide vane and a sheath. In a turbofan jet engine, a lightning current due to a lightning strike can be fended off while a controlling function of a stator vane formed from a composite material is ensured, and an inspection is also easy.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Applicant: IHI Corporation
    Inventors: Kenro OBUCHI, Hiroyuki YAGI
  • Publication number: 20150336323
    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: Application
    Filed: July 31, 2015
    Publication date: November 26, 2015
    Applicants: IHI Corporation, IHI AEROSPACE CO., LTD.
    Inventors: Takaomi INADA, Hideo MORITA, Hiroyuki YAGI, Tsutomu MURAKAMI, Shinichi TANAKA
  • Publication number: 20150328844
    Abstract: A heated blank sheet is held by a frame-like shaped blank holder device, the blank sheet including a plurality of main fibers arranged in parallel with each other, a plurality of auxiliary fibers arranged in parallel with each other so as to intersect with the main fibers, and a resin that consolidates the main fibers and the auxiliary fibers, and the blank sheet held by the blank holder device is pressed against a fan blade mold with the direction of the main fibers aligned with a longitudinal direction of the fan blade mold to apply an appropriate tension along the direction of the main fibers to the blank sheet, thereby preventing occurrence of wrinkling.
    Type: Application
    Filed: July 29, 2015
    Publication date: November 19, 2015
    Applicant: IHI CORPORATION
    Inventors: Tsutomu MURAKAMI, Hideo MORITA, Takaomi INADA, Hiroyuki YAGI, Seiichi SATO, Shunichi BABA
  • Publication number: 20150104324
    Abstract: A fan rotor blade includes a blade body made from a composite material of a resin and fibers, and having a pressure surface and a suction surface. A dovetail capable of being fitted into a fitting groove in a fan disk is provided in a base end of the blade body. The blade body is provided with a sheath. The sheath is more rigid than the blade body and is fixed to the blade body in a state where the sheath covers a leading edge portion of the blade body and the vicinity thereof. The sheath extends in the longitudinal direction of the blade body from a blade root side to a tip end side of the blade body, and a base end portion of the sheath located on the blade root side of the blade body extends to the dovetail.
    Type: Application
    Filed: July 28, 2014
    Publication date: April 16, 2015
    Applicant: IHI Corporation
    Inventors: Hiroyuki YAGI, Hiroshi Kuroki, Kenro Obuchi
  • Publication number: 20150104325
    Abstract: A fan rotor blade includes a blade body made from a composite material of a resin and fibers, and having a pressure surface facing one side in a rotation direction and a suction surface facing the other side in the rotation direction. The blade body is provided with a sheath which is more rigid than the blade body and is fixed to the blade body in a state where the sheath covers a leading edge portion of the blade body, which is located on an upstream side in the direction of intake of external air, and the vicinity thereof. A tip end portion of the sheath extends from the leading edge portion side of the blade body to a trailing edge portion side of the blade body. An end portion of the tip end portion of the sheath is flush with the trailing edge portion of the blade body.
    Type: Application
    Filed: July 28, 2014
    Publication date: April 16, 2015
    Applicant: IHI Corporation
    Inventors: Hiroyuki YAGI, Hiroshi KUROKI, Kenro OBUCHI
  • Publication number: 20150064000
    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 linear protrusion is formed on one of joint surfaces of the vane proximal end portion to the pair of divided pieces. A groove engaged with the linear protrusion formed in the vane proximal end portion is formed on one of respective joint surfaces of the pair of divided pieces of the coupling support member. The vane proximal end portion is held between the pair of divided pieces of the coupling support member, by the fastening force that is applied to the pair of divided pieces of the coupling support member from both the sides in the vane thickness direction. It is possible to obtain a high structural strength while contributing to a reduction in weight of a jet engine.
    Type: Application
    Filed: February 1, 2013
    Publication date: March 5, 2015
    Applicant: IHI CORPORATION
    Inventors: Hiroyuki Yagi, Tadahiro Ishigure, Takaomi Inada, Takeshi Murooka, Hideo Morita, Tatsuhito Honda
  • Patent number: 8956112
    Abstract: A CMC turbine stator blade 1 includes a blade 2 which is formed of a ceramic matrix composite material, and a band 11 which is formed of a ceramic matrix composite material or a metallic material and supports the blade 2. The blade 2 includes a first fitting portion 5 to which the band 11 is fitted at the outside thereof. The band 11 includes a second fitting portion 12 to which the first fitting portion 5 is fitted at the inside thereof. The CMC turbine stator blade 1 includes fixing means 6 which sandwiches the second fitting portion 12 from both sides in the height direction of the blade so that the blade 1 and the band 11 are fixed.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: February 17, 2015
    Assignee: IHI Corporation
    Inventors: Yosuke Tanahashi, Akira Takahashi, Hiroyuki Yagi
  • Patent number: 8926262
    Abstract: A CMC turbine stator blade 1 includes a blade 2 of a ceramic matrix composite material formed or a metallic material, and a band 5 formed of a ceramic matrix composite material and supporting the blade 2. The blade 2 includes a first fitting portion 3 to which the band 5 is fitted outside. The band 5 includes a second fitting portion 7 to which the first fitting portion 3 is fitted inside. A flexible wire 8 is disposed between the fitting portions 3, 7 to fix the blade 2 and the band 5. A first groove 3a in the outer peripheral surface of the first fitting portion 3 extends in the front-to-rear direction of the blade 2. A second groove 7a in the inner peripheral surface of the second fitting portion 7a extends along the first groove 3a. The wire 8 is disposed between the grooves 3a,7a.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: January 6, 2015
    Assignee: IHI Corporation
    Inventors: Yosuke Tanahashi, Akira Takahashi, Hiroyuki Yagi
  • Publication number: 20130054205
    Abstract: A model transforming device includes: a processing section configured to modify respective algebra expressions of an interface model for simulation in a fixed description style and an interface model for behavioral synthesis in a fixed description style, and when both of the algebra expressions after being modified match each other, determine that the models have equivalence, and perform mutual transformation of the models. The processing section performs mutual equivalent transformation of hierarchical channel and integration channel model transformation by following three operations a, b, and c maintaining algebraic equivalence: a: mutual equivalent transformation by payload disclosure and payload concealment operation, b: interface and channel decomposition and interface and channel integration, and c: process remapping operation.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Applicant: Sony Corporation
    Inventor: Hiroyuki Yagi
  • Patent number: 8281316
    Abstract: Event direction detection method that distinguishes an external event from an internal event and detects a direction of an event, includes the steps of: acting as intermediary of input/output of the external event and transferring external event input to an external event output; acting as intermediary of input/output of the internal event and transferring internal event input to an internal event output; transferring the outputs to finite state machine of a block; receiving and editing external event input terminal, via which the external event is input, and external event output terminal via which the external event is output; receiving and editing the first acting and transferring step; receiving and editing internal event input terminal, via which the internal event is input, and internal event output terminal via which the internal event is output; and receiving and editing the second acting and transferring step.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: October 2, 2012
    Assignee: Sony Corporation
    Inventor: Hiroyuki Yagi
  • Publication number: 20120130137
    Abstract: The present invention relates to a process of producing a conjugated diene including a step of mixing a raw material gas containing a monoolefin having a carbon atom number of 4 or more with a molecular oxygen-containing gas and supplying the mixture into a reactor, and a step of obtaining a corresponding conjugated diene-containing product gas produced by the oxidative dehydrogenation reaction of the monoolefin having a carbon atom number of 4 or more in the presence of a catalyst, wherein the concentration of a combustible gas in the gas supplied to the reactor is not less than the upper explosion limit and the oxygen concentration in the product gas is from 2.5 to 8.0 vol %.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 24, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Souichi ORITA, Hiroshi Takeo, Masaru Utsunomiya, Takuma Nishio, Hiroyuki Yagi, Nariyasu Kanuka
  • Publication number: 20120057985
    Abstract: A CMC turbine stator blade 1 includes a blade 2 which is formed of a ceramic matrix composite material, and a band 11 which is formed of a ceramic matrix composite material or a metallic material and supports the blade 2. The blade 2 includes a first fitting portion 5 to which the band 11 is fitted at the outside thereof. The band 11 includes a second fitting portion 12 to which the first fitting portion 5 is fitted at the inside thereof. The CMC turbine stator blade 1 includes fixing means 6 which sandwiches the second fitting portion 12 from both sides in the height direction of the blade so that the blade 1 and the band 11 are fixed.
    Type: Application
    Filed: March 24, 2010
    Publication date: March 8, 2012
    Applicant: IHI CORPORATION
    Inventors: Yosuke Tanahashi, Akira Takahashi, Hiroyuki Yagi
  • Publication number: 20120009071
    Abstract: A CMC turbine stator blade 1 includes a blade 2 of a ceramic matrix composite material formed or a metallic material, and a band 5 formed of a ceramic matrix composite material and supporting the blade 2. The blade 2 includes a first fitting portion 3 to which the band 5 is fitted outside. The band 5 includes a second fitting portion 7 to which the first fitting portion 3 is fitted inside. A flexible wire 8 is disposed between the fitting portions 3, 7 to fix the blade 2 and the band 5. A first groove 3a in the outer peripheral surface of the first fitting portion 3 extends in the front-to-rear direction of the blade 2. A second groove 7a in the inner peripheral surface of the second fitting portion 7a extends along the first groove 3a. The wire 8 is disposed between the grooves 3a,7a.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 12, 2012
    Applicant: IHI CORPORATION
    Inventors: Yosuke Tanahashi, Akira Takahashi, Hiroyuki Yagi
  • Patent number: 7890911
    Abstract: A skeleton generation method includes: creating a netlist which is a circuit connection information input file format for analog circuit simulation, as subcircuit descriptions corresponding to function blocks of a system, on the basis of input and output information on the function blocks; constructing a function block skeleton of a system level design language using the respective subcircuit descriptions as units of the function blocks, on the basis of the circuit connection information described in the netlist; and constructing a system skeleton on the basis of a result of analysis of connection information on nodes of the subcircuit descriptions.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: February 15, 2011
    Assignee: Sony Corporation
    Inventor: Hiroyuki Yagi
  • Patent number: 7549208
    Abstract: In a method of mounting a planar electronic circuit chip onto a flexible sheet together with another planar electronic element, the electronic circuit part and the another electric element are selected so that the planar surface of the another electric element is greater than the planar surface of the electronic circuit chip, and the another electric element and the electronic circuit chip are mounted on the sheet so that the planar surface of the another electric element and the planar surface of the electronic circuit chip are in parallel with the sheet surface, and the planer surface of the electronic circuit chip is accommodated within the planar surface of the another electric element as viewed in a direction perpendicular to the sheet surface.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: June 23, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu, Asahiko Sobe, Yasuhiro Tsunemi, Hiroyuki Yagi
  • Patent number: 7309019
    Abstract: A method of checking a sheet as to forgery thereof, the sheet being provided with an electronic circuit chip from or in which information can be read out or written and having visible information. The method includes a step of encrypting the visible information of the sheet and storing the encrypted visible information in the electronic circuit chip, and a step of determining discriminatively the authenticity of the sheet by comparing the visible information of the sheet with the information stored in the electronic circuit chip.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: December 18, 2007
    Assignees: Hitachi, Ltd., Hitachi Research Institute
    Inventors: Chikashi Okamoto, Kazuo Takaragi, Kazutaka Tsuji, Mitsuo Usami, Chizuko Yasunobu, Asahiko Isobe, Yasuhiro Tsunemi, Hiroyuki Yagi
  • Publication number: 20070277143
    Abstract: A skeleton generation method includes: creating a netlist which is a circuit connection information input file format for analog circuit simulation, as subcircuit descriptions corresponding to function blocks of a system, on the basis of input and output information on the function blocks; constructing a function block skeleton of a system level design language using the respective subcircuit descriptions as units of the function blocks, on the basis of the circuit connection information described in the netlist; and constructing a system skeleton on the basis of a result of analysis of connection information on nodes of the subcircuit descriptions.
    Type: Application
    Filed: May 22, 2007
    Publication date: November 29, 2007
    Inventor: Hiroyuki Yagi