Patents by Inventor Hiroshige Murata

Hiroshige Murata 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: 20190152867
    Abstract: A method for producing a ceramic matrix composite is provided with: weaving a fabric from fibers of SiC; infiltrating SiC into pores in the fabric by vapor phase infiltration; executing solid phase infiltration by immersing the fabric after the vapor phase infiltration in an immersion liquid including a solvent, a SiC powder and a glass powder to infiltrate SiC and glass into the fabric; and executing liquid phase infiltration by immersing the fabric after the solid phase infiltration in an immersion liquid including a solvent and an organic silicon polymer and calcine the immersed fabric to infiltrate SiC into the fabric.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Applicant: IHI Corporation
    Inventors: Yousuke MIZOKAMI, Takeshi NAKAMURA, Shinji MUTO, Hiroshige MURATA
  • Patent number: 10006119
    Abstract: Arranged in the middle of an upper communication sleeve 21 is a first shutter 25 that is moved back and forth in a horizontal open-close direction to open and close a first communication path 23 that makes the inside of a first bobbin chamber 11 and the inside of a furnace body 3 communicate with each other. Arranged in a middle of a lower communication sleeve 53 is a second shutter 57 that is moved back and forth in a horizontal open-close direction to open and close a second communication path 55 that makes a second bobbin chamber 33 and the inside of the furnace body 3 communicate with each other.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: June 26, 2018
    Assignee: IHI Corporation
    Inventors: Yukihiro Nakada, Kenichiro Watanabe, Hiroshige Murata
  • Patent number: 9695504
    Abstract: Arranged in the middle of an upper communication sleeve is a first shutter that is moved back and forth in a horizontal open-close direction to open and close a first communication path that makes the inside of a first bobbin chamber and the inside of a furnace body communicate with each other. Arranged in a middle of a lower communication sleeve is a second shutter that is moved back and forth in a horizontal open-close direction to open and close a second communication path that makes a second bobbin chamber and the inside of the furnace body communicate with each other.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: July 4, 2017
    Assignee: IHI Corporation
    Inventors: Yukihiro Nakada, Kenichiro Watanabe, Hiroshige Murata
  • Publication number: 20160333466
    Abstract: Arranged in the middle of an upper communication sleeve 21 is a first shutter 25 that is moved back and forth in a horizontal open-close direction to open and close a first communication path 23 that makes the inside of a first bobbin chamber 11 and the inside of a furnace body 3 communicate with each other. Arranged in a middle of a lower communication sleeve 53 is a second shutter 57 that is moved back and forth in a horizontal open-close direction to open and close a second communication path 55 that makes a second bobbin chamber 33 and the inside of the furnace body 3 communicate with each other.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Applicant: IHI Corporation
    Inventors: Yukihiro NAKADA, Kenichiro WATANABE, Hiroshige MURATA
  • Publication number: 20150218692
    Abstract: Arranged in the middle of an upper communication sleeve 21 is a first shutter 25 that is moved back and forth in a horizontal open-close direction to open and close a first communication path 23 that makes the inside of a first bobbin chamber 11 and the inside of a furnace body 3 communicate with each other. Arranged in a middle of a lower communication sleeve 53 is a second shutter 57 that is moved back and forth in a horizontal open-close direction to open and close a second communication path 55 that makes a second bobbin chamber 33 and the inside of the furnace body 3 communicate with each other.
    Type: Application
    Filed: April 13, 2015
    Publication date: August 6, 2015
    Applicant: IHI Corporation
    Inventors: Yukihiro NAKADA, Kenichiro Watanabe, Hiroshige Murata
  • Patent number: 9039955
    Abstract: When a molded fabric body (X) is impregnated with a powder (K) of a predetermined material, there are performed a first step of dispersing the powder (K) in a liquid to prepare a slurry, and a second step of burying the molded fabric body (X) made of fiber bundles in the slurry and vibrating the slurry by use of a predetermined vibrator (M). Furthermore, in the second step, the vibrator (M) is moved along a surface of the molded fabric body (X). As a result, it is possible to improve the rate of impregnation of the powder (K) more than that in the conventional cases, irrespective of the shape of the molded fabric body (X).
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 26, 2015
    Assignee: IHI CORPORATION
    Inventors: Hiroshige Murata, Yasutomo Tanaka, Yuuki Nonaka, Takeshi Nakamura
  • Publication number: 20150079371
    Abstract: A ceramic matrix composite component coated with environmental barrier coatings includes a substrate formed of a silicide-containing ceramic matrix composite, a silicon carbide layer deposited on a surface of the substrate, a silicon layer deposited on a surface of the silicon carbide layer, a mixed layer made of a mixture of mullite and ytterbium silicate and deposited on a surface of the silicon layer, and an oxide layer deposited on a surface of the mixed layer.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Applicant: IHI Corporation
    Inventors: Yukihiro NAKADA, Hiroshige Murata, Kenichiro Watanabe, Yasutomo Tanaka, Takeshi Nakamura
  • Publication number: 20140179188
    Abstract: A ceramic composite material is comprised of a fabric of fibers of an inorganic substance; and a matrix for combining the fibers. The matrix consists essentially of a ceramic. The matrix is formed by burying the fabric in a mixture of a powder of carbon, a powder of silicon and a medium including an organic solvent, producing an oscillation in the mixture to impregnate the fabric with the mixture, and calcining the fabric impregnated with the mixture.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Applicants: THE SOCIETY OF JAPANESE AEROSPACE COMPANIES, INC., ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO., LTD.
    Inventors: Hiroshige MURATA, Takeshi Nakamura, Yasutomo Tanaka
  • Patent number: 8728383
    Abstract: A ceramic composite material is comprised of a fabric of fibers of an inorganic substance; and a matrix for combining the fibers. The matrix consists essentially of a ceramic. The matrix is formed by burying the fabric in a mixture of a powder of carbon, a powder of silicon and a medium including an organic solvent, producing an oscillation in the mixture to impregnate the fabric with the mixture, and calcining the fabric impregnated with the mixture.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: May 20, 2014
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., The Society of Japanese Aerospace Companies, Inc.
    Inventors: Hiroshige Murata, Takeshi Nakamura, Yasutomo Tanaka
  • Patent number: 8548578
    Abstract: A living body state monitor apparatus includes: a living body information acquisition device to acquire living body information containing an electrocardiography waveform and a pulse waveform from a user; an irregular heartbeat detection section to detect an irregular heartbeat from the electrocardiography waveform; and a pulse wave feature quantity extraction section to extract a pulse wave feature quantity from a pulse wave corresponding to the irregular heartbeat. Further, a living body state determination section is included to determine a danger degree on user's living body state using both of (A) information on kind and/or continued time period of an irregular heartbeat detected by the irregular heartbeat detection section, and (B) a pulse wave feature quantity extracted by the pulse wave feature quantity extraction section, and/or a variation of the extracted pulse wave feature quantity.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: October 1, 2013
    Assignees: DENSO CORPORATION, Toyota Jidosha Kabushiki Kaisha, Nippon Medical School Foundation
    Inventors: Shinya Matsunaga, Shinji Nanba, Tsuyoshi Nakagawa, Kouki Futatsuyama, Takao Katoh, Hiroshige Murata, Hiroshi Hayashi, Motohisa Osaka, Minoru Makiguchi
  • Publication number: 20130009348
    Abstract: When a molded fabric body (X) is impregnated with a powder (K) of a predetermined material, there are performed a first step of dispersing the powder (K) in a liquid to prepare a slurry, and a second step of burying the molded fabric body (X) made of fiber bundles in the slurry and vibrating the slurry by use of a predetermined vibrator (M). Furthermore, in the second step, the vibrator (M) is moved along a surface of the molded fabric body (X). As a result, it is possible to improve the rate of impregnation of the powder (K) more than that in the conventional cases, irrespective of the shape of the molded fabric body (X).
    Type: Application
    Filed: March 29, 2011
    Publication date: January 10, 2013
    Inventors: Hiroshige Murata, Yasutomo Tanaka, Yuuki Nonaka, Takeshi Nakamura
  • Publication number: 20120095358
    Abstract: A living body state monitor apparatus includes: a living body information acquisition device to acquire living body information containing an electrocardiography waveform and a pulse waveform from a user; an irregular heartbeat detection section to detect an irregular heartbeat from the electrocardiography waveform; and a pulse wave feature quantity extraction section to extract a pulse wave feature quantity from a pulse wave corresponding to the irregular heartbeat. Further, a living body state determination section is included to determine a danger degree on user's living body state using both of (A) information on kind and/or continued time period of an irregular heartbeat detected by the irregular heartbeat detection section, and (B) a pulse wave feature quantity extracted by the pulse wave feature quantity extraction section, and/or a variation of the extracted pulse wave feature quantity.
    Type: Application
    Filed: October 13, 2011
    Publication date: April 19, 2012
    Applicants: DENSO CORPORATION, Nippon Medical School Foundation, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinya MATSUNAGA, Shinji Nanba, Tsuyoshi Nakagawa, Kouki Futatsuyama, Takao Katoh, Hiroshige Murata, Hiroshi Hayashi, Motohisa Osaka, Minoru Makiguchi
  • Publication number: 20110020655
    Abstract: A high temperature component (2) has an intermediate layer (3) formed by a spraying on a surface in part thereof and comprised of an oxide ceramics set containing a glass, and an environment resistant coat (4) formed on a surface of the intermediate layer (3) and comprised of a coating material having a heat resistance and a water vapor wall-thinning resistance. The oxide ceramics set is a set of kinds of oxide ceramics adapted to be unchanged in crystalline phase, or isometric in cubic volume even when phase-changed, within a temperature range from a room temperature to 1,400 degrees C., the set of kinds of oxide ceramics having a coefficient of thermal expansion between a coefficient of thermal expansion of an SiC series ceramics matrix composite constituting the high temperature component (2) and a coefficient of thermal expansion of the coating material constituting the environment resistant coat (4).
    Type: Application
    Filed: March 18, 2009
    Publication date: January 27, 2011
    Applicant: IHI Corporation
    Inventors: Yasutomo Tanaka, Hiroshige Murata
  • Publication number: 20080081757
    Abstract: A ceramic composite material is comprised of a fabric of fibers of an inorganic substance; and a matrix for combining the fibers. The matrix consists essentially of a ceramic. The matrix is formed by burying the fabric in a mixture of a powder of carbon, a powder of silicon and a medium including an organic solvent, producing an oscillation in the mixture to impregnate the fabric with the mixture, and calcining the fabric impregnated with the mixture.
    Type: Application
    Filed: March 29, 2007
    Publication date: April 3, 2008
    Applicants: Ishikawajima-Harima Heavy Industries Co., Ltd., The Society of Japanese Aerospace Companies, Inc.
    Inventors: Hiroshige MURATA, Takeshi Nakamura, Yasutomo Tanaka
  • Patent number: 6723381
    Abstract: An organic silicon polymer is infiltrated and charged into gaps in a matrix phase of a formed fiber fabric, and its airtightness is increased by (a) CVI infiltration process 2 for forming the SIC matrix phase on the surface of the fiber fabric formed, (b) pressurized infiltrations process 4 for pressurizing the organic silicon polymer in the direction operating pressure is applied to the fiber fabric during use and infiltrating the organic silicon polymer into gaps in the aforementioned matrix phase, and (c) heating process 5 for heating the infiltrated fiber fabric at a high temperature. Thus, airtightness can be increased quickly, and fired work can be applied practically even to thrust chambers etc.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: April 20, 2004
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Hiroshige Murata, Muneyoshi Shioda, Takeshi Nakamura
  • Patent number: 6723382
    Abstract: A method for fabricating a CMC (Ceramic Matrix Composite) article, comprising: performing a CVI (Chemical Vapor Infiltration) treatment for forming a SiC matrix layer on the surface of a woven fabric; performing a machining process, after the CVI treatment, for machining the woven fabric; and performing a PIP (Polymer Impregnation and Pyrolysis) treatment, after the machining process, for impregnating an organic silicon polymer as a base material into voids in the matrix layer and pyrolyzing the organic silicon polymer. By this method, the throughput of CMC articles can be preferably increased. The throughput may be further increased by performing a slurry impregnation treatment before or after the PIP treatment, in which slurried SiC is impregnated into the voids in the matrix layer.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: April 20, 2004
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Hirohide Yamaguchi, Takeshi Nakamura, Hiroshige Murata
  • Patent number: 6537617
    Abstract: There is disclosed a method of mixing/dispersing solid phases of a carbon powder 4 and silicon powder 5, impregnating a woven fiber 2 with the powders, and subsequently exposing the woven fiber to a high temperature sufficient for reaction calcining to react/calcine the woven fiber, so that only small amounts of C and Si particles remain, a matrix forming speed is high, and CMC having high airtightness can be manufactured in a short time.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: March 25, 2003
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Takeshi Nakamura, Shunsuke Satomi, Hiroshige Murata
  • Publication number: 20030008067
    Abstract: A method for fabricating a CMC (Ceramic Matrix Composite) article, comprising: performing a CVI (Chemical Vapor Infiltration) treatment for forming a SiC matrix layer on the surface of a woven fabric; performing a machining process, after the CVI treatment, for machining the woven fabric; and performing a PIP (Polymer Impregnation and Pyrolysis) treatment, after the machining process, for impregnating an organic silicon polymer as a base material into voids in the matrix layer and pyrolyzing the organic silicon polymer. By this method, the throughput of CMC articles can be preferably increased. The throughput may be further increased by performing a slurry impregnation treatment before or after the PIP treatment, in which slurried SiC is impregnated into the voids in the matrix layer.
    Type: Application
    Filed: April 8, 2002
    Publication date: January 9, 2003
    Inventors: Hirohide Yamaguchi, Takeshi Nakamura, Hiroshige Murata
  • Patent number: 6368663
    Abstract: There is disclosed a hybrid treatment into which CVI treatment and PIP treatment are combined. A dense matrix is formed around a ceramic fiber by the CVI treatment, and a gap in the matrix is infiltrated/filled well with the matrix by the PIP treatment, so that hermetic properties are enhanced. Moreover, when a volume ratio of the matrix by the CVI treatment in the total matrix is set to about 5% or more, about 80% or less, fine cracks are present in the matrix by the PIP treatment, so that a binding force of the ceramic fiber is weakened, and Young's modulus can be reduced. As a result, a thermal stress is alleviated and a resistance to thermal shock is enhanced.
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: April 9, 2002
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd
    Inventors: Takeshi Nakamura, Hiroshige Murata, Shoju Masaki
  • Publication number: 20010046563
    Abstract: There is disclosed a method of mixing/dispersing solid phases of a carbon powder 4 and silicon powder 5, impregnating a woven fiber 2 with the powders, and subsequently exposing the woven fiber to a high temperature sufficient for reaction calcining to react/calcine the woven fiber, so that only small amounts of C and Si particles remain, a matrix forming speed is high, and CMC having high airtightness can be manufactured in a short time.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 29, 2001
    Inventors: Takeshi Nakamura, Shunsuke Satomi, Hiroshige Murata