Patents by Inventor Yousuke Hara

Yousuke Hara 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: 11660470
    Abstract: The invention provides a charged particle irradiation apparatus including: a collimator apparatus provided in an irradiation nozzle that emits a charged particle beam to an irradiation target; and a collimator control unit that controls the collimator apparatus. The collimator apparatus includes a collimator mechanism having one or more arm-shape collimators extending from a base part and a drive mechanism that moves the collimator mechanism on a plane perpendicular to a traveling direction of a charged particle beam. The arm-shape collimator includes one or more movable leaves that rotate independently of each other on the perpendicular plane. By moving the collimator mechanism and/or rotating the movable leaves so that the arm-shape collimators are arranged along a shape of an edge of an irradiation target on the perpendicular plane, the collimator control unit causes the arm-shape collimators to block a charged particle beam that would otherwise irradiate outside of the edge of the irradiation target.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: May 30, 2023
    Assignee: B DOT MEDICAL INC.
    Inventors: Yousuke Hara, Takuji Furukawa, Ryohei Tansho
  • Patent number: 11446519
    Abstract: The invention provides a charged particle irradiation apparatus including: a collimator apparatus provided in an irradiation nozzle that emits a charged particle beam to an irradiation target; and a collimator control unit that controls the collimator apparatus. The collimator apparatus includes a collimator mechanism having one or more arm-shape collimators extending from a base part and a drive mechanism that moves the collimator mechanism on a plane perpendicular to a traveling direction of a charged particle beam. The arm-shape collimator includes one or more movable leaves that rotate independently of each other on the perpendicular plane. By moving the collimator mechanism and/or rotating the movable leaves so that the arm-shape collimators are arranged along a shape of an edge of an irradiation target on the perpendicular plane, the collimator control unit causes the arm-shape collimators to block a charged particle beam that would otherwise irradiate outside of the edge of the irradiation target.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: September 20, 2022
    Assignee: B DOT MEDICAL INC.
    Inventors: Yousuke Hara, Takuji Furukawa, Ryohei Tansho
  • Publication number: 20220288423
    Abstract: The invention provides a patient shuttle system and an irradiation system for particle therapy. A patient shuttle system of one embodiment of the invention includes: a patient table (110) adapted to carry a patient; a patient table drive unit (120) that moves and/or rotates the patient table; and a transfer unit (130) having a base (131) on which the patient table drive unit is placed. In a home position state of the patient shuttle system (100), the patient table and first and second arms of the patient table drive unit are configured to be folded in the height direction (Z-axis). A robot arm base connected to the second arm is fixed at a position off the center of the base in plan view, and thereby a helper space (135) where a helper may ride is secured on the base. The robot arm base is fixed in a recess (138) provided in the base.
    Type: Application
    Filed: November 29, 2021
    Publication date: September 15, 2022
    Applicant: B dot Medical Inc.
    Inventors: Yousuke HARA, Yuka MATSUZAKI, Taishi MASUDA, Takuji FURUKAWA
  • Publication number: 20220288419
    Abstract: The invention provides a charged particle irradiation apparatus including: a collimator apparatus provided in an irradiation nozzle that emits a charged particle beam to an irradiation target; and a collimator control unit that controls the collimator apparatus. The collimator apparatus includes a collimator mechanism having one or more arm-shape collimators extending from a base part and a drive mechanism that moves the collimator mechanism on a plane perpendicular to a traveling direction of a charged particle beam. The arm-shape collimator includes one or more movable leaves that rotate independently of each other on the perpendicular plane. By moving the collimator mechanism and/or rotating the movable leaves so that the arm-shape collimators are arranged along a shape of an edge of an irradiation target on the perpendicular plane, the collimator control unit causes the arm-shape collimators to block a charged particle beam that would otherwise irradiate outside of the edge of the irradiation target.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 15, 2022
    Applicant: B Dot Medical Inc.
    Inventors: Yousuke HARA, Takuji FURUKAWA, Ryohei TANSHO
  • Patent number: 11426607
    Abstract: The invention provides a patient shuttle system and an irradiation system for particle therapy. A patient shuttle system of one embodiment of the invention includes: a patient table (110) adapted to carry a patient; a patient table drive unit (120) that moves and/or rotates the patient table; and a transfer unit (130) having a base (131) on which the patient table drive unit is placed. In a home position state of the patient shuttle system (100), the patient table and first and second arms of the patient table drive unit are configured to be folded in the height direction (Z-axis). A robot arm base connected to the second arm is fixed at a position off the center of the base in plan view, and thereby a helper space (135) where a helper may ride is secured on the base. The robot arm base is fixed in a recess (138) provided in the base.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: August 30, 2022
    Assignee: B DOT MEDICAL INC.
    Inventors: Yousuke Hara, Yuka Matsuzaki, Taishi Masuda, Takuji Furukawa
  • Publication number: 20220062656
    Abstract: The invention provides a charged particle irradiation apparatus including: a collimator apparatus provided in an irradiation nozzle that emits a charged particle beam to an irradiation target; and a collimator control unit that controls the collimator apparatus. The collimator apparatus includes a collimator mechanism having one or more arm-shape collimators extending from a base part and a drive mechanism that moves the collimator mechanism on a plane perpendicular to a traveling direction of a charged particle beam. The arm-shape collimator includes one or more movable leaves that rotate independently of each other on the perpendicular plane. By moving the collimator mechanism and/or rotating the movable leaves so that the arm-shape collimators are arranged along a shape of an edge of an irradiation target on the perpendicular plane, the collimator control unit causes the arm-shape collimators to block a charged particle beam that would otherwise irradiate outside of the edge of the irradiation target.
    Type: Application
    Filed: July 30, 2021
    Publication date: March 3, 2022
    Applicant: B Dot Medical Inc.
    Inventors: Yousuke HARA, Takuji FURUKAWA, Ryohei TANSHO
  • Publication number: 20210393984
    Abstract: Provided is a charged particle irradiation apparatus that performs scanning with a charged particle beam and irradiates an irradiation target spot by spot. An embodiment of the present invention provides a charged particle irradiation apparatus (10) including: a first dose monitor (54) mounted in an irradiation nozzle (50); an irradiation pattern converting device (70) that generates irradiation control data used for controlling the charged particle irradiation apparatus (10) from treatment plan data including information on a dose rate and a dose of a charged particle beam for each spot; and a dose correction factor storage unit (72) that stores data of a dose correction factor with respect to a dose rate of a charged particle beam. The irradiation pattern converting device (70) is configured to select one spot in the treatment plan data, for instance.
    Type: Application
    Filed: April 22, 2021
    Publication date: December 23, 2021
    Applicant: B dot Medical Inc.
    Inventors: Ryohei TANSHO, Yoshiaki TAKI, Takuji FURUKAWA, Yousuke HARA
  • Patent number: 11198022
    Abstract: Provided is a charged particle irradiation apparatus that performs scanning with a charged particle beam and irradiates an irradiation target spot by spot. An embodiment of the present invention provides a charged particle irradiation apparatus (10) including: a first dose monitor (54) mounted in an irradiation nozzle (50); an irradiation pattern converting device (70) that generates irradiation control data used for controlling the charged particle irradiation apparatus (10) from treatment plan data including information on a dose rate and a dose of a charged particle beam for each spot; and a dose correction factor storage unit (72) that stores data of a dose correction factor with respect to a dose rate of a charged particle beam. The irradiation pattern converting device (70) is configured to select one spot in the treatment plan data, for instance.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 14, 2021
    Assignee: B DOT MEDICAL INC.
    Inventors: Ryohei Tansho, Yoshiaki Taki, Takuji Furukawa, Yousuke Hara
  • Patent number: 11058899
    Abstract: The present invention relates to a superconducting electromagnet apparatus having a group of superconducting electromagnets including a first superconducting electromagnet and a second superconducting electromagnet arranged adjacent to the first superconducting electromagnet. Effective magnetic field regions generated by the first and second superconducting electromagnets, respectively, are formed to satisfy predetermined relational equations.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: July 13, 2021
    Assignee: B DOT MEDICAL INC.
    Inventors: Takuji Furukawa, Eri Takeshita, Yousuke Hara
  • Patent number: 11026320
    Abstract: The invention provides a charged particle irradiation apparatus including: a focusing magnet that deflects a charged particle beam to continuously change an irradiation angle of the beam to an isocenter; an irradiation nozzle that continuously moves along a shape on an exit side of an effective magnetic field region of the focusing magnet, wherein the beam exiting the focusing magnet is emitted to the isocenter through the irradiation nozzle; a power supply rail along the shape on the exit side of the region; and a collector shoe fixed to the irradiation nozzle and configured to slide along the rail to supply power from the rail to the irradiation nozzle. A surface of the collector shoe contacted with the rail has the same bend radius as or average bend radius of the rail, and/or the collector shoe slides along the rail in contact with a flat side surface of the rail.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: June 1, 2021
    Assignee: B DOT MEDICAL INC.
    Inventors: Takuji Furukawa, Yousuke Hara
  • Patent number: 10912954
    Abstract: A patient shuttle system, an irradiation system for particle therapy and an operation method thereof are provided. One embodiment of the present invention provides a patient shuttle system including a patient table on which a patient is placed, a drive device that causes the patient table to move parallel and/or rotate, and a drive control device that controls parallel movement and/or rotation of the patient table by the drive device, in accordance with a parallel movement amount and/or a rotation amount of the patient table that are received from a patient positioning system provided in a treatment room for particle therapy.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: February 9, 2021
    Assignee: B DOT MEDICAL INC.
    Inventors: Yousuke Hara, Takuji Furukawa, Eri Takeshita, Kota Mizushima
  • Publication number: 20200306563
    Abstract: A patient shuttle system, an irradiation system for particle therapy and an operation method thereof are provided. One embodiment of the present invention provides a patient shuttle system including a patient table on which a patient is placed, a drive device that causes the patient table to move parallel and/or rotate, and a drive control device that controls parallel movement and/or rotation of the patient table by the drive device, in accordance with a parallel movement amount and/or a rotation amount of the patient table that are received from a patient positioning system provided in a treatment room for particle therapy.
    Type: Application
    Filed: November 22, 2019
    Publication date: October 1, 2020
    Applicant: B dot Medical Inc.
    Inventors: Yousuke HARA, Takuji FURUKAWA, Eri TAKESHITA, Kota MIZUSHIMA
  • Patent number: 10446364
    Abstract: An embodiment of the invention is a focusing magnet including a coil pair arranged on both sides of a path of a charged particle beam. The coil pair generates an effective magnetic field region in which a magnetic field is oriented in a direction (z-axis) perpendicular to a traveling direction (x-axis) of a charged particle beam.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: October 15, 2019
    Assignee: B DOT MEDICAL INC.
    Inventors: Kota Mizushima, Takuji Furukawa, Eri Takeshita, Yousuke Hara, Naoya Saotome, Yuichi Saraya, Ryohei Tansho
  • Publication number: 20190311879
    Abstract: An embodiment of the invention is a focusing magnet including a coil pair arranged on both sides of a path of a charged particle beam. The coil pair generates an effective magnetic field region in which a magnetic field is oriented in a direction (z-axis) perpendicular to a traveling direction (x-axis) of a charged particle beam.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 10, 2019
    Applicant: B dot Medical Inc.
    Inventors: Kota MIZUSHIMA, Takuji FURUKAWA, Eri TAKESHITA, Yousuke HARA, Naoya SAOTOME, Yuichi SARAYA, Ryohei TANSHO
  • Publication number: 20190311878
    Abstract: An embodiment of the invention is a focusing magnet including a coil pair arranged on both sides of a path of a charged particle beam. The coil pair generates an effective magnetic field region in which a magnetic field is oriented in a direction (z-axis) perpendicular to a traveling direction (x-axis) of a charged particle beam.
    Type: Application
    Filed: November 9, 2018
    Publication date: October 10, 2019
    Applicant: B dot Medical Inc.
    Inventors: Kota MIZUSHIMA, Takuji FURUKAWA, Eri TAKESHITA, Yousuke HARA, Naoya SAOTOME, Yuichi SARAYA, Ryohei TANSHO
  • Patent number: 10431418
    Abstract: An embodiment of the invention is a focusing magnet including a coil pair arranged on both sides of a path of a charged particle beam. The coil pair generates an effective magnetic field region in which a magnetic field is oriented in a direction (z-axis) perpendicular to a traveling direction (x-axis) of a charged particle beam.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: October 1, 2019
    Assignee: B DOT MEDICAL INC.
    Inventors: Kota Mizushima, Takuji Furukawa, Eri Takeshita, Yousuke Hara, Naoya Saotome, Yuichi Saraya, Ryohei Tansho