Patents by Inventor Shuichi Yamashita

Shuichi Yamashita 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: 20220372992
    Abstract: There is provided a rotating machinery including: a rotating body R which is rotatable around an axis O and has a first facing surface P1 that widens in a plane intersecting the axis O; a stationary body S which faces the first facing surface P1 from the axial direction O, and has a second facing surface P2 forming a flow path F1 through which a fluid flows from a radially inner side toward the radially outer side between the first facing surface P1 and the second facing surface P2; and a rotation side projection portion 80 which projects from the first facing surface P1 toward the second facing surface P2, has an annular shape around the axis O, and faces the second facing surface P2 via a clearance C.
    Type: Application
    Filed: August 8, 2022
    Publication date: November 24, 2022
    Inventors: Masamichi IINO, Martino RECLARI, Takeshi SANO, Shuichi YAMASHITA, Yoshihiro KUWAMURA
  • Patent number: 11411274
    Abstract: An object of the present disclosure is to provide a high-endurance and long-life nonaqueous electrolyte secondary battery including a battery case having sealing performance unlikely to be degraded. A nonaqueous electrolyte secondary battery according to an aspect of the present disclosure includes a closed-end cylindrical outer can, a sealing body that closes an opening of the outer can, a resin gasket disposed between the outer can and the sealing body, a sealing member interposed between the outer can and the gasket, and a nonaqueous electrolyte. The sealing member has a multilayer structure including a first sealing member layer, the main constituent of which is one selected from butadiene rubber, urethane rubber, silicone rubber, chloroprene rubber, and isoprene rubber, and a second sealing member layer, the main constituent of which is one selected from ethylene propylene rubber, ethylene propylene diene rubber, and fluoro rubber.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: August 9, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yukihiro Oki, Yoshiyuki Muraoka, Shuichi Yamashita
  • Patent number: 11401944
    Abstract: The impeller includes a disc having a main surface extending outward in a radial direction toward one side in an axial direction, a plurality of blades defining a flow path extending to an outlet on one side from an inlet on the other side in the axial direction, and a cover disposed to cover the plurality of blades. At least one of an inlet side region and an outlet side region which are a connection portion between the blade and the main surface and a connection portion between the blade and the cover has a small fillet portion curved in an arc shape and having a small radius of curvature. An intermediate region formed between the inlet side region and the outlet side region has a large fillet portion having a large radius of curvature.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: August 2, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Miku Kuroda, Hiroaki Oka
  • Patent number: 11378096
    Abstract: A centrifugal compressor includes: an impeller fixed on an outer periphery of a rotary shaft; a diffuser disposed at a radially outer side of the impeller; a casing accommodating the impeller and the diffuser; a scroll flow passage connected to an outlet of the diffuser, the scroll flow passage being formed into a scroll shape by a scroll inner peripheral wall and a scroll outer peripheral wall positioned at a radially outer side of the scroll inner peripheral wall; and a discharge pipe connected to the casing so as to form a discharge flow passage for guiding a fluid from the scroll flow passage to outside of the casing. The scroll inner peripheral wall is positioned at an inner side, in a radial direction, of the outlet of the diffuser, and the discharge pipe includes an inner wall surface which has a radially inner region.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: July 5, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Jo Masutani, Yoshiaki Shoji
  • Publication number: 20220145898
    Abstract: The impeller of a rotating machine according to at least one embodiment of the present discloser is provided with: a disc; a cover disposed on an opposite side of a radial passage from the disc in an axial direction; and a blade disposed between the disc and the cover. In a dimensionless position along a camber line of the blade when the position of a leading edge of the blade is defined as 0 and the position of a trailing edge of the blade is defined as 1, a position where an angle difference between a first blade angle at a disc-side end portion of the blade and a second blade angle at a cover-side end portion of the blade is maximum is in a range of 0.5 or more and 1 or less. The first blade angle is ?10 degrees or more and 0 degrees or less at the position where the angle difference is maximum.
    Type: Application
    Filed: October 8, 2021
    Publication date: May 12, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Nobuyori Yagi, Noriyuki Okada, Chihiro Myoren, Akihiro Nakaniwa, Shuichi Yamashita, Jo Masutani, Hirofumi Higuchi, Takashi Oda
  • Patent number: 11221018
    Abstract: A compressor includes a rotation shaft that is capable of rotating around a main axis, an impeller provided integrally with the rotation shaft, a casing that covers the impeller from an outer circumferential side and forms a flow path through which a working fluid circulates, a discharge scroll that is provided at an end of the flow path on a downstream side and extends in a spiral shape around the main axis, a discharge nozzle that communicates with the discharge scroll on the downstream side and extends from the discharge scroll in a tangent direction around the main axis, and a pressure loss body that has a plate shape extending in a direction orthogonal to an axis of the discharge nozzle extending in a radial direction orthogonal to the main axis and is capable of blocking a part of a flow path cross-section of the discharge nozzle.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: January 11, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Jo Masutani, Chihiro Myoren, Shinichiro Tokuyama, Yuta Okumura
  • Publication number: 20210301831
    Abstract: The impeller includes a disc having a main surface extending outward in a radial direction toward one side in an axial direction, a plurality of blades defining a flow path extending to an outlet on one side from an inlet on the other side in the axial direction, and a cover disposed to cover the plurality of blades. At least one of an inlet side region and an outlet side region which are a connection portion between the blade and the main surface and a connection portion between the blade and the cover has a small fillet portion curved in an arc shape and having a small radius of curvature. An intermediate region formed between the inlet side region and the outlet side region has a large fillet portion having a large radius of curvature.
    Type: Application
    Filed: March 2, 2021
    Publication date: September 30, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Miku Kuroda, Hiroaki Oka
  • Patent number: 11125236
    Abstract: A casing surrounds a rotary shaft and impellers (4), and includes a return flow path through which a fluid discharged from the impeller (4) on a front stage side between the impellers (4) adjacent to each other is guided inward in a radial direction so as to be introduced to the impeller (4) on a rear stage side, and a plurality of return vanes (50) disposed at an interval in a circumferential direction inside the return flow path. An exit angle of the return vane (50) is inclined forward in a rotation direction of the impeller (4), according to the radial direction, and the exit angle of the return vane (50) decreases toward the return vane (50) on the rear stage side.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: September 21, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Shuichi Yamashita
  • Publication number: 20210239129
    Abstract: A centrifugal compressor includes: an impeller fixed on an outer periphery of a rotary shaft; a diffuser disposed at a radially outer side of the impeller; a casing accommodating the impeller and the diffuser; a scroll flow passage connected to an outlet of the diffuser, the scroll flow passage being formed into a scroll shape by a scroll inner peripheral wall and a scroll outer peripheral wall positioned at a radially outer side of the scroll inner peripheral wall; and a discharge pipe connected to the casing so as to form a discharge flow passage for guiding a fluid from the scroll flow passage to outside of the casing. The scroll inner peripheral wall is positioned at an inner side, in a radial direction, of the outlet of the diffuser, and the discharge pipe includes an inner wall surface which has a radially inner region.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 5, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Jo Masutani, Yoshiaki Shoji
  • Patent number: 11073159
    Abstract: What is provided is a method of manufacturing a centrifugal rotary machine including: a fixing step S1 of fixing a return vane body having a virtual airfoil curved forward in a rotation direction of a rotation shaft as it goes inward in a radial direction and formed by a pressure surface recessed forward in the rotation direction and a negative pressure surface protruding forward in the rotation direction onto a guide flow path; and a cutting step S2 of forming a cut surface by cutting a portion including an inner radial end portion of the return vane body from the pressure surface to the negative pressure surface.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: July 27, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Jo Masutani, Shuichi Yamashita
  • Patent number: 11047393
    Abstract: A multi-stage centrifugal compressor includes: a rotary shaft that is configured to rotate around an axis; a plurality of stages of impellers that are fixed to the rotary shaft and are configured to integrally rotate to compress and deliver a fluid, which flows into the impellers from an upstream side in an axial direction, to a radial outer side; a casing including a return flow path that is configured to guide the fluid, which is compressed and delivered from an impeller on a preceding stage side, toward a radial inner side, and an introduction flow path that is connected to a downstream side of the return flow path and is configured to divert the fluid and introduce the fluid to an impeller on a succeeding stage side; and return vanes that are arranged in the return flow path while being spaced apart from each other in a circumferential direction.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: June 29, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Akihiro Nakaniwa, Yoshiaki Shoji
  • Publication number: 20210190078
    Abstract: A multi-stage centrifugal compressor includes: a rotary shaft that is configured to rotate around an axis; a plurality of stages of impellers that are fixed to the rotary shaft and are configured to integrally rotate to compress and deliver a fluid, which flows into the impellers from an upstream side in an axial direction, to a radial outer side; a casing including a return flow path that is configured to guide the fluid, which is compressed and delivered from an impeller on a preceding stage side, toward a radial inner side, and an introduction flow path that is connected to a downstream side of the return flow path and is configured to divert the fluid and introduce the fluid to an impeller on a succeeding stage side; and return vanes that are arranged in the return flow path while being spaced apart from each other in a circumferential direction.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 24, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Akihiro Nakaniwa, Yoshiaki Shoji
  • Patent number: 11011806
    Abstract: A cylindrical battery with an electrode body in which a negative electrode plate and a positive electrode plate connected to a plurality of positive electrode leads are rolled with a separator interposed therebetween, a first insulating plate disposed on the electrode body, a current-collection plate disposed on the first insulating plate, a second insulating plate disposed in contact with an opposite surface of the current-collection plate that opposes the first insulating plate, a sealing body, and an outer jacket can, wherein the first insulating plate has at least one through hole, the first positive electrode lead passes through the through hole and between the first insulating plate and the second insulating plate, is bent from the outer-circumference portion of the current-collection plate onto the current-collection plate and the second insulating plate is provided with a recessed portion to house the first positive electrode lead.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 18, 2021
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takahiro Fukuoka, Shuichi Yamashita, Yuma Yamaguchi, Hiromichi Wakabayashi
  • Patent number: 10989201
    Abstract: A centrifugal compressor includes: a rotating shaft; a first impeller; a second impeller which is disposed on a downstream side of the first impeller; a return flow path which guides a first fluid flowing to a radially outer side from the first impeller toward a radially inner side; an introduction flow path which introduces the fluid guided to the radially inner side to the second impeller; an intermediate suction flow path which additionally supplies a second fluid to the second impeller; and a curved flow path which is connected to a downstream side of the introduction flow path and the intermediate suction flow path, and guides the first fluid and the second fluid to the second impeller, wherein a side surface on an upstream side of the introduction flow path is disposed on the downstream side from a return position of the return flow path.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 27, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Shuichi Yamashita, Akihiro Nakaniwa, Ryosuke Saito, Shinichiro Tokuyama
  • Patent number: 10975883
    Abstract: A flow path includes a return bend portion which guides a working fluid to an inside in the radial direction by reversing the working fluid discharged to an outside in a radial direction from an upstream-side impeller, and a guiding flow path which is connected to a downstream side of the return bend portion and leads the working fluid to the inside in the radial direction so as to guide the working fluid to the downstream-side impeller. In a return vane which is provided in the guiding flow path, a trailing edge is formed such that a second end portion on a second side in an axial direction is positioned closer to an inside in a radial direction than a first end portion on a first side in the axial direction.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: April 13, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Shuichi Yamashita
  • Patent number: D906212
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: December 29, 2020
    Inventors: Shuichi Yamashita, Michael Gallert, Emiel Burki
  • Patent number: D932410
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 5, 2021
    Inventor: Shuichi Yamashita
  • Patent number: D937172
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: November 30, 2021
    Inventors: Shuichi Yamashita, Emiel Burki
  • Patent number: D960046
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: August 9, 2022
    Inventor: Shuichi Yamashita
  • Patent number: D969697
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: November 15, 2022
    Inventor: Shuichi Yamashita