Patents by Inventor Yasuhiro Wada

Yasuhiro Wada 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: 20210259562
    Abstract: Provided is a biosensor device including: a signal generating unit for generating a continuous wave signal; an antenna for emitting the continuous wave signal as a radio wave; a variable matching circuit for performing impedance matching between the signal generating unit and the antenna; a detection circuit for outputting a detection signal on the basis of the continuous wave signal generated by the signal generating unit and a reflected signal of a radio wave incident on the antenna; and a control unit for controlling an element value of the variable matching circuit from the detection signal in a predetermined period corresponding to one cycle or more time in which heartbeat and respiration waveforms can be measured on the basis of the detection signal.
    Type: Application
    Filed: August 7, 2019
    Publication date: August 26, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Saki WADA, Kengo NISHIMOTO, Yasuhiro NISHIOKA
  • Publication number: 20210231029
    Abstract: A bearing device includes: a bearing housing; a floating metal having a cylindrical shape and disposed in a housing hole of the bearing housing and in which a rotational shaft is inserted; and a positioning pin for positioning the floating metal with respect to the bearing housing, the positioning pin being disposed along a radial direction of the rotational shaft. The positioning pin includes a first oil supply hole formed so as to penetrate the positioning pin and communicating with a first space between an inner peripheral surface of the floating metal and an outer peripheral surface of the rotational shaft, and a second oil supply hole formed inside the positioning pin so as to connect a second space to the first oil supply hole, the second space being disposed between an outer peripheral surface of the floating metal and an inner peripheral surface of the housing hole.
    Type: Application
    Filed: July 22, 2019
    Publication date: July 29, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.
    Inventors: Taiyo Shirakawa, Yasuhiro Wada, Yukihiro Iwasa, Tetsuya Matsuo
  • Patent number: 10995679
    Abstract: A flame produced within a premixer is promptly extinguished and a reduction in output power of a gas turbine associated with extinguishment is suppressed.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 4, 2021
    Assignee: Mitsubishi, Power, Ltd.
    Inventors: Kazuki Abe, Akinori Hayashi, Yasuhiro Wada, Tetsuma Tatsumi, Shohei Yoshida
  • Publication number: 20210108797
    Abstract: The present invention provides a gas turbine combustor configured to form a film-like airflow around a region of a combustion liner, where pressure dynamics damping holes are formed for efficiently cooling the region where the pressure dynamics damping holes are formed without increasing concentration of discharged nitrogen oxides. The gas turbine combustor includes the combustion liner that forms a combustion chamber for receiving supply of fuel and air to generate combustion gas, a liner attached to an outer circumferential surface of the combustion liner for forming space from the outer circumferential surface, and the pressure dynamics damping hole formed in the combustion liner provided with the liner for communication between the space and the combustion chamber. The gas turbine combustor includes a cooling air guide lip disposed on an inner circumferential surface of the combustion liner for forming a film-like airflow around a region where the pressure dynamics damping hole is formed.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 15, 2021
    Inventors: Yasuhiro WADA, Shohei YOSHIDA, Akinori HAYASHI, Yoshitaka HIRATA, Hirokazu TAKAHASHI, Satoshi DODO, Shohei NUMATA, Tetsuma TATSUMI, Kazuki ABE
  • Patent number: 10675673
    Abstract: A method of manufacturing a mechanical part of the present invention includes a first process of forming, by performing a folding processing to an end portion of the material, a portion to be processed having a structure, in which a plurality of layers respectively having a thickness corresponding to a plate thickness of a material overlap each other, in the material such that a plate thickness direction of the layer is orthogonal to a plate thickness direction of the material; and a second process of changing, by performing a forging processing to the portion to be processed, a shape of the portion to be processed to a target shape while press-welding the layers of the portion to be processed to each other by plastic deformation.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: June 9, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Mitsuharu Yamagata, Shuji Yamamoto, Yasuhiro Wada
  • Patent number: 10626881
    Abstract: A compressor-impeller fixing nut has a tubular shape, and includes: a curved-surface shaped portion disposed in a first range from a first end side in an axial direction, the curved-surface shaped portion having an outer diameter which increases toward a second end side in the axial direction and including an outer peripheral surface having a curved shape which protrudes outward in a radial direction in a cross section along the axial direction; and a nut portion disposed in a second range closer to the second end side from the first range in the axial direction, the nut portion having an outer peripheral surface with a nut shape. An expression (D1max?D1min)/2<L is satisfied, where L is a length of the first range in the axial direction, and D1max is a maximum value and D1min is a minimum value of the outer diameter of the curved-surface shaped portion in the first range.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 21, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshihiro Tanabe, Yasuhiro Wada
  • Patent number: 10495313
    Abstract: A fuel nozzle for gas turbine combustor of the present invention includes a diffusion combustion burner including a diffusion fuel nozzle, a premixing combustion burner including a premixing fuel nozzle, an end flange to which the diffusion combustion burner and the premixing combustion burner are mechanically joined, and a diffusion combustion burner support which fixes the diffusion combustion burner to the end flange and is mounted around the premixing fuel nozzle in a manner to cover a root portion of the premixing fuel nozzle, the root portion being a junction between the premixing fuel nozzle and the end flange. An outside diameter of the premixing fuel nozzle longitudinally varies in a manner to progressively increase toward the junction. A maximum diameter of the root portion of the premixing fuel nozzle is greater than an inside diameter of a hole formed in the diffusion combustion burner support.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: December 3, 2019
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yoshihide Wadayama, Satoshi Kumagai, Yasuhiro Wada, Hirokazu Takahashi
  • Publication number: 20190321873
    Abstract: A press forming method includes a first process of obtaining a pressing force applied to each portion of a tool by an workpiece material during press forming while independently driving the respective each portion of the tool divided into multiple portions and press forming the workpiece material, and a second process of adjusting at least one of an applied driving force, an applied driving speed, and an applied driving timing for each portion of the tool to cause a processing portion of the workpiece material in which the state approaching an overload state is detected based on the pressing force to flow to other processing portions of the workpiece material.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 24, 2019
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yasuhiro WADA, Shuji YAMAMOTO, Mitsuharu YAMAGATA
  • Publication number: 20190264571
    Abstract: A gas turbine combustor is equipped with a transition piece assembly of the combustor, the transition piece assembly includes a transition piece, a frame which is installed on the downstream side (an outlet part) of the transition piece and a seal member which is installed on a coupled part of the aforementioned frame and a turbine-side stator vane part and blocks flowing of compressed air from a compressor into the aforementioned turbine side through a gap of the coupled part, and a projection member is provided on an outer circumference of the aforementioned frame, a movement suppression mechanism for matching the aforementioned projection member and suppressing possible movement of the aforementioned seal member is provided on the aforementioned seal member, the movement suppression mechanism and the aforementioned projection members fit together and thereby the aforementioned seal member is fixed to the frame.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 29, 2019
    Inventors: Tatsuya HAGITA, Noboru OKUYAMA, Yasuhiro WADA, Yasuyuki WATANABE, Shohei YOSHIDA
  • Patent number: 10376941
    Abstract: A press forming method includes a first process of obtaining a pressing force applied to each portion of a tool by an workpiece material during press forming while independently driving the respective each portion of the tool divided into multiple portions and press forming the workpiece material, and a second process of adjusting at least one of an applied driving force, an applied driving speed, and an applied driving timing for each portion of the tool to cause a processing portion of the workpiece material in which the state approaching an overload state is detected based on the pressing force to flow to other processing portions of the workpiece material.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: August 13, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Yasuhiro Wada, Shuji Yamamoto, Mitsuharu Yamagata
  • Publication number: 20190242581
    Abstract: A flame produced within a premixer is promptly extinguished and a reduction in output power of a gas turbine associated with extinguishment is suppressed.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 8, 2019
    Inventors: Kazuki ABE, Akinori HAYASHI, Yasuhiro WADA, Tetsuma TATSUMI, Shohei YOSHIDA
  • Patent number: 10247203
    Abstract: A noise reduction structure includes a compressor discharge-side pipe portion, a first porous plate having a plurality of through holes and extending circumferentially along an inner circumferential surface of the compressor discharge-side pipe portion so that an air layer is formed between the first porous plate and the inner circumferential surface, a partition dividing an interior of the compressor discharge-side pipe portion in a radial direction in a circumferential direction of the compressor discharge-side pipe portion so as to form a plurality of flow paths in the compressor discharge-side pipe portion, and a second porous plate having a plurality of through holes. The second porous plate is provided in each of the plurality of flow paths and extends along the partition so that an air layer is formed between the second porous plate and the partition.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 2, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yushi Ono, Hiroyuki Hosoya, Kentaro Hayashi, Seokcheol Kim, Yoshihisa Ono, Yasuhiro Wada
  • Publication number: 20190024670
    Abstract: A compressor-impeller fixing nut has a tubular shape, and includes: a curved-surface shaped portion disposed in a first range from a first end side in an axial direction, the curved-surface shaped portion having an outer diameter which increases toward a second end side in the axial direction and including an outer peripheral surface having a curved shape which protrudes outward in a radial direction in a cross section along the axial direction; and a nut portion disposed in a second range closer to the second end side from the first range in the axial direction, the nut portion having an outer peripheral surface with a nut shape. An expression (D1max?D1min)/2<L is satisfied, where L is a length of the first range in the axial direction, and D1max is a maximum value and D1min is a minimum value of the outer diameter of the curved-surface shaped portion in the first range.
    Type: Application
    Filed: January 18, 2017
    Publication date: January 24, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yoshihiro Tanabe, Yasuhiro Wada
  • 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
  • Publication number: 20180223873
    Abstract: A noise reduction structure includes a compressor discharge-side pipe portion, a first porous plate having a plurality of through holes and extending circumferentially along an inner circumferential surface of the compressor discharge-side pipe portion so that an air layer is formed between the first porous plate and the inner circumferential surface, a partition dividing an interior of the compressor discharge-side pipe portion in a radial direction in a circumferential direction of the compressor discharge-side pipe portion so as to form a plurality of flow paths in the compressor discharge-side pipe portion, and a second porous plate having a plurality of through holes. The second porous plate is provided in each of the plurality of flow paths and extends along the partition so that an air layer is formed between the second porous plate and the partition.
    Type: Application
    Filed: January 11, 2017
    Publication date: August 9, 2018
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Yushi ONO, Hiroyuki HOSOYA, Kentaro HAYASHI, Seokcheol KIM, Yoshihisa ONO, Yasuhiro WADA
  • Publication number: 20180223871
    Abstract: A compression device includes a centrifugal compressor and a silencer. The centrifugal compressor includes a compressor assembly bolt fastening an inlet side of an inlet guide to a scroll casing. The silencer includes: a first side wall extending in a direction intersecting with a rotational axis of an impeller; an annular second side wall provided between the first side wall and the centrifugal compressor and surrounding the rotational axis; at least one silencer element provided in an ambient-air introduction space formed between the first side wall and the second side wall for guiding an ambient air to the inlet guide; and a silencer assembly bolt extending from the first side wall to the scroll casing in a direction along the rotational axis of the impeller and fastening the first side wall, the second side wall, and the scroll casing.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 9, 2018
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Satoshi Makino, Yukihiro Iwasa, Yasuhiro Wada
  • Publication number: 20170348763
    Abstract: A method of manufacturing a mechanical part of the present invention includes a first process of forming, by performing a folding processing to an end portion of the material, a portion to be processed having a structure, in which a plurality of layers respectively having a thickness corresponding to a plate thickness of a material overlap each other, in the material such that a plate thickness direction of the layer is orthogonal to a plate thickness direction of the material; and a second process of changing, by performing a forging processing to the portion to be processed, a shape of the portion to be processed to a target shape while press-welding the layers of the portion to be processed to each other by plastic deformation.
    Type: Application
    Filed: January 7, 2016
    Publication date: December 7, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Mitsuharu YAMAGATA, Shuji YAMAMOTO, Yasuhiro WADA
  • Patent number: 9707617
    Abstract: While a compression part (B1) in a bottom wall part of a cup-shaped workpiece (B) is compressed by an inner punch (11) and an inner die (14) and moved in a direction to get away from an intermediate die (15), the inner die (14) is pushed toward the inner punch (11); and a compression part (B2) being an outer end portion in a radial direction of the workpiece (B) is compressed by an outer punch (13) and an outer die (16) and moved in an direction to approach the intermediate die (15), to thereby suppress the workpiece (B) in the compression part (B2) from material-flowing in a direction to get away from a central axis (10), whereby thickness reduction processing of the compression part (B1) and thickness increase processing of a vertical wall part (B3) of the workpiece (B) sandwiched by an intermediate punch (12) and the inner die (15) and a vertical wall part (B4) of the workpiece (B) sandwiched by the intermediate punch (12) and an outer die (16) are performed.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: July 18, 2017
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Mitsuharu Yamagata, Shuji Yamamoto, Yasuhiro Wada
  • Publication number: 20170100761
    Abstract: A press forming method includes a first process of obtaining a pressing force applied to each portion of a tool by an workpiece material during press forming while independently driving the respective each portion of the tool divided into multiple portions and press forming the workpiece material, and a second process of adjusting at least one of an applied driving force, an applied driving speed, and an applied driving timing for each portion of the tool to cause a processing portion of the workpiece material in which the state approaching an overload state is detected based on the pressing force to flow to other processing portions of the workpiece material.
    Type: Application
    Filed: May 13, 2015
    Publication date: April 13, 2017
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Yasuhiro WADA, Shuji YAMAMOTO, Mitsuharu YAMAGATA
  • Publication number: 20160377294
    Abstract: A fuel nozzle for gas turbine combustor of the present invention includes a diffusion combustion burner including a diffusion fuel nozzle, a premixing combustion burner including a premixing fuel nozzle, an end flange to which the diffusion combustion burner and the premixing combustion burner are mechanically joined, and a diffusion combustion burner support which fixes the diffusion combustion burner to the end flange and is mounted around the premixing fuel nozzle in a manner to cover a root portion of the premixing fuel nozzle, the root portion being a junction between the premixing fuel nozzle and the end flange. An outside diameter of the premixing fuel nozzle longitudinally varies in a manner to progressively increase toward the junction. A maximum diameter of the root portion of the premixing fuel nozzle is greater than an inside diameter of a hole formed in the diffusion combustion burner support.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 29, 2016
    Inventors: Yoshihide WADAYAMA, Satoshi KUMAGAI, Yasuhiro WADA, Hirokazu TAKAHASHI