Patents by Inventor Kentarou Oda

Kentarou Oda 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).

  • Patent number: 11045747
    Abstract: The present invention pertains to a hollow fiber membrane module (5) for removing gas from an objective liquid or supplying gas to the objective liquid, comprising: a hollow fiber membrane bundle (20); and a collecting member (51) configured to collect first ends (20a) of the hollow fiber membrane bundle (20) while maintaining openings of opened end portions (22a) of hollow fiber membranes (22) of the hollow fiber membrane bundle (20), wherein the collecting member (51) has a coupling portion configured to couple the collecting member (51) to an installation object in a detachable and liquid-tight manner.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: June 29, 2021
    Assignee: MITSUBISHI CHEMICAL CLEANSUI CORPORATION
    Inventors: Yoshie Tanizaki, Hiroyuki Okazaki, Yoshiichi Nakagawa, Masanori Itakura, Kaoru Terazawa, Nobuyuki Kikuya, Hiroyuki Tanaka, Hideo Kumamoto, Hiroyuki Fujiki, Kentarou Oda
  • Publication number: 20200318883
    Abstract: A rotary machine includes a rotary shaft with an axial disc; an axial magnetic bearing which supports the rotary shaft; a motor which rotates the rotary shaft; a turbine impeller mounted on one end portion of the rotary shaft; a compressor impeller mounted on the other end portion; a cooling gas flow passage where a cooling gas for cooling the motor flows; and a housing for at least the motor, the axial magnetic bearing, and the axial disc. The motor includes a rotor unit on the rotary shaft, and a stator unit facing the rotor unit, the axial disc is equipped with a pair of load receiving surfaces sandwiched between the axial magnetic bearings, and the cooling gas flow passage is equipped with a first flow passage between the rotor unit and the stator unit, and a second flow passage extending along at least one of the load receiving surface.
    Type: Application
    Filed: March 6, 2017
    Publication date: October 8, 2020
    Applicant: IHI Corporation
    Inventors: Masahiro NAKAJIMA, Seiichiro YOSHINAGA, Katsuya FUJISAKU, Kentarou ODA, Tsutomu IIDA, Kazuaki KURIHARA, Hirokazu HIRAI, Masaki HIROKAWA
  • Publication number: 20190168135
    Abstract: The present invention pertains to a hollow fiber membrane module (5) for removing gas from an objective liquid or supplying gas to the objective liquid, comprising: a hollow fiber membrane bundle (20); and a collecting member (51) configured to collect first ends (20a) of the hollow fiber membrane bundle (20) while maintaining openings of opened end portions (22a) of hollow fiber membranes (22) of the hollow fiber membrane bundle (20), wherein the collecting member (51) has a coupling portion configured to couple the collecting member (51) to an installation object in a detachable and liquid-tight manner.
    Type: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Applicant: MITSUBISHI CHEMICAL CLEANSUI CORPORATION
    Inventors: Yoshie TANIZAKI, Hiroyuki OKAZAKI, Yoshiichi NAKAGAWA, Masanori ITAKURA, Kaoru TERAZAWA, Nobuyuki KIKUYA, Hiroyuki TANAKA, Hideo KUMAMOTO, Hiroyuki FUJIKI, Kentarou ODA
  • Patent number: 10234175
    Abstract: A turbo refrigerator is provided with: a turbo compressor having a motor; an oil cooling unit which cools lubricating oil which is supplied to at least a portion of the turbo compressor; a refrigerant introduction part which introduces some of the refrigerant which circulates between an evaporator and a condenser into a motor accommodation space and the oil cooling unit; and a cooling unit which cools the refrigerant which is introduced into the motor accommodation space and the oil cooling unit.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: March 19, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Kentarou Oda, Seiichiro Yoshinaga, Nobuyoshi Sakuma
  • Patent number: 10227995
    Abstract: Provided are a turbo compressor which is provided with an impeller rotating about a rotating shaft, and a seal part having a facing portion which faces an outer diameter portion of a hub of the impeller in a radial direction, in which a shunting groove for foreign matter which has infiltrated between the outer diameter portion and the facing portion is formed in the seal part, and a turbo refrigerating machine which is provided with the turbo compressor.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: March 12, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Patent number: 10132325
    Abstract: A sealing mechanism (40) includes: a ring-shaped sealing body (41) which surrounds a rotating shaft (24) when viewed from an axial direction; a sealing-body support part (42) which supports the sealing body (41) so as to be movable in a radial direction of the rotating shaft (24); and an elastic member (44) which is interposed between the sealing body (41) and the sealing-body support part (42).
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 20, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Patent number: 10030665
    Abstract: A liquid level indicator including a liquid level calm portion that is provided with a liquid introduction inlet that communicates with a portion below the liquid level in an oil tank and a gas vent that communicates with a portion above the liquid level; and a sight glass for observing a liquid level in the liquid level calm portion, having a liquid introduction tube provided with an extension portion that communicates with the liquid introduction inlet and extends toward the bottom portion of the oil tank, and a distal end portion that communicates with the extension portion and opens in a direction other than the downward direction below the liquid level.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: July 24, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Seiichiro Yoshinaga, Nobuyoshi Sakuma
  • Patent number: 9945384
    Abstract: A turbo compressor includes: a compressor casing which accommodates impellers compressing gas by rotation; and a motor casing which accommodates a motor rotating the impellers, wherein the motor casing has a cylindrical main body part having a larger diameter than a mounting flange provided in the compressor casing, and the compressor casing and the motor casing are connected through an adapter member.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: April 17, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma, Katsuya Fujisaku
  • Patent number: 9879886
    Abstract: A turbo refrigerator (1) includes: a turbo compressor (5) to which a gas-phase component (X3) of a refrigerant from an economizer (3) is supplied, wherein the turbo compressor (5) includes a first flow path (R10) through which a compressed refrigerant gas (X1) flows, and a connecting pipe (5b) connected to the first flow path (R10) and a second flow path (R3) through which the gas-phase component (X3) of the refrigerant flows, and the diameter of the connecting pipe (5b) reduces toward the first flow path (R10) from the second flow path (R3).
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: January 30, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Patent number: 9822789
    Abstract: A turbo compressor that has a pressure equalizing tube that circulates a gas from a gear unit accommodation space toward an IGV accommodation space, and an oil separation device that is provided in the gear unit accommodation space to separate lubricating oil that is contained in the gas, in which the oil separating device has a suction duct that communicates with the pressure equalizing tube, and the suction duct has a centrifugal separation portion provided with a first demister, a second demister provided on the downstream side of the first demister in relation to the suction direction, and a curved passage provided between the first demister and the second demister.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: November 21, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Seiichiro Yoshinaga, Nobuyoshi Sakuma
  • Patent number: 9739289
    Abstract: A turbo-compressor including a variable vane that adjusts the flow rate of a fluid, a drive shaft that is connected to the variable vane and is rotated to drive the variable vane, a motor that rotationally drives the drive shaft, and a coupling that couples the drive shaft with an output shaft of the motor. Between the drive shaft and output shaft and the coupling, a vibration isolation means is arranged to connect the drive shaft and output shaft to each other so that they rotate together and allow the drive shaft and output shaft to move in a vibration direction.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: August 22, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Seiichiro Yoshinaga, Nobuyoshi Sakuma
  • Patent number: 9664200
    Abstract: A turbo compressor that has a compression stage provided with an impeller that rotates; a housing provided with a gear unit accommodation space that accommodates lubricating oil and accommodates a large diameter gear that transmits rotating force to the impeller, an IGV accommodation space in which the ambient pressure is lower than the gear unit accommodation space, and a gap that brings the IGV accommodation space and the air intake side of a first compression stage into communication; a pressure equalizing tube that causes a gas to circulate from the gear unit accommodation space toward the IGV accommodation space; and a second oil separating device that separates, in the IGV accommodation space, the lubricating oil contained in the gas.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 30, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Seiichiro Yoshinaga, Kazuaki Kurihara, Nobuyoshi Sakuma
  • Patent number: 9431730
    Abstract: A mounting structure for a main terminal for mounting the main terminal to a housing in the state of one end portion to which a lead wire can be affixed being inserted into the housing, and the other end portion being exposed to the outside of the housing, in which the housing has a mounting hole for inserting and extracting the one end portion together with the lead wire; and the main terminal has a flange portion that can mount the main terminal about the mounting hole from the outside of the housing without involving rotation of the main terminal.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: August 30, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Patent number: 9416788
    Abstract: A turbo compressor includes a case; compression stages which are disposed in a plural number in a rotatable manner with respect to the case via a sliding part; an oil tank in which a lubricant oil to be supplied to the sliding part is stored; a pressure equalization pipe which communicates the oil tank with the vicinity of the inlet of the compression stage; and a check valve which allows only the movement of the fluid from the oil tank side to the compression stage side in the pressure equalization pipe.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: August 16, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Minoru Tsukamoto
  • Patent number: 9416681
    Abstract: A turbo compressor includes a housing in which lubrication oil is accumulated, a gear that is housed in the housing and to which the lubrication oil is supplied, a demister that is disposed above the gear and on which an intake is provided to catch oil mist of the lubrication oil in the housing, a gear cover that is provided surrounding the gear to catch lubrication oil splashed by the gear and then drip the caught lubrication oil downward, and a demister cover that is disposed near the demister to drip the lubrication oil caught by the demister downward. Here, a narrow gap is formed between the demister cover and an inner wall surface of the housing. According to the turbo compressor, an amount of lubrication oil flowing through the demister can be reduced by the gear cover and the demister cover.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 16, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Publication number: 20160169236
    Abstract: A turbo compressor includes: a compressor casing which accommodates impellers compressing gas by rotation; and a motor casing which accommodates a motor rotating the impellers, wherein the motor casing has a cylindrical main body part having a larger diameter than a mounting flange provided in the compressor casing, and the compressor casing and the motor casing are connected through an adapter member.
    Type: Application
    Filed: July 14, 2014
    Publication date: June 16, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou ODA, Nobuyoshi SAKUMA, Katsuya FUJISAKU
  • Publication number: 20160153471
    Abstract: Provided are a turbo compressor which is provided with an impeller rotating about a rotating shaft, and a seal part having a facing portion which faces an outer diameter portion of a hub of the impeller in a radial direction, in which a shunting groove for foreign matter which has infiltrated between the outer diameter portion and the facing portion is formed in the seal part, and a turbo refrigerating machine which is provided with the turbo compressor.
    Type: Application
    Filed: July 8, 2014
    Publication date: June 2, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou Oda, Nobuyoshi Sakuma
  • Publication number: 20160153462
    Abstract: A turbo compressor which is provided with a lubricant spray nozzle which is disposed to penetrate a housing and sprays a lubricant toward a bearing accommodated in the housing, and an external manifold which is detachably mounted on the housing and supports the lubricant spray nozzle outside of the housing is adopted.
    Type: Application
    Filed: July 7, 2014
    Publication date: June 2, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou ODA, Nobuyoshi SAKUMA
  • Publication number: 20160138835
    Abstract: A turbo refrigerator (1) includes: a turbo compressor (5) to which a gas-phase component (X3) of a refrigerant from an economizer (3) is supplied, wherein the turbo compressor (5) includes a first flow path (R10) through which a compressed refrigerant gas (X1) flows, and a connecting pipe (5b) connected to the first flow path (R10) and a second flow path (R3) through which the gas-phase component (X3) of the refrigerant flows, and the diameter of the connecting pipe (5b) reduces toward the first flow path (R10) from the second flow path (R3).
    Type: Application
    Filed: June 2, 2014
    Publication date: May 19, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou ODA, Nobuyoshi SAKUMA
  • Publication number: 20160131150
    Abstract: A sealing mechanism (40) includes: a ring-shaped sealing body (41) which surrounds a rotating shaft (24) when viewed from an axial direction; a sealing-body support part (42) which supports the sealing body (41) so as to be movable in a radial direction of the rotating shaft (24); and an elastic member (44) which is interposed between the sealing body (41) and the sealing-body support part (42).
    Type: Application
    Filed: May 30, 2014
    Publication date: May 12, 2016
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kentarou ODA, Nobuyoshi SAKUMA