Patents by Inventor Ryohei Tansho
Ryohei Tansho 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).
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Patent number: 11660470Abstract: 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: GrantFiled: May 26, 2022Date of Patent: May 30, 2023Assignee: B DOT MEDICAL INC.Inventors: Yousuke Hara, Takuji Furukawa, Ryohei Tansho
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Patent number: 11446519Abstract: 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: GrantFiled: July 30, 2021Date of Patent: September 20, 2022Assignee: B DOT MEDICAL INC.Inventors: Yousuke Hara, Takuji Furukawa, Ryohei Tansho
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Publication number: 20220288419Abstract: 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: ApplicationFiled: May 26, 2022Publication date: September 15, 2022Applicant: B Dot Medical Inc.Inventors: Yousuke HARA, Takuji FURUKAWA, Ryohei TANSHO
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Publication number: 20220062656Abstract: 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: ApplicationFiled: July 30, 2021Publication date: March 3, 2022Applicant: B Dot Medical Inc.Inventors: Yousuke HARA, Takuji FURUKAWA, Ryohei TANSHO
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Publication number: 20210393984Abstract: 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: ApplicationFiled: April 22, 2021Publication date: December 23, 2021Applicant: B dot Medical Inc.Inventors: Ryohei TANSHO, Yoshiaki TAKI, Takuji FURUKAWA, Yousuke HARA
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Patent number: 11198022Abstract: 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: GrantFiled: April 22, 2021Date of Patent: December 14, 2021Assignee: B DOT MEDICAL INC.Inventors: Ryohei Tansho, Yoshiaki Taki, Takuji Furukawa, Yousuke Hara
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Patent number: 10446364Abstract: 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: GrantFiled: March 20, 2019Date of Patent: October 15, 2019Assignee: B DOT MEDICAL INC.Inventors: Kota Mizushima, Takuji Furukawa, Eri Takeshita, Yousuke Hara, Naoya Saotome, Yuichi Saraya, Ryohei Tansho
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Publication number: 20190311878Abstract: 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: ApplicationFiled: November 9, 2018Publication date: October 10, 2019Applicant: B dot Medical Inc.Inventors: Kota MIZUSHIMA, Takuji FURUKAWA, Eri TAKESHITA, Yousuke HARA, Naoya SAOTOME, Yuichi SARAYA, Ryohei TANSHO
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Publication number: 20190311879Abstract: 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: ApplicationFiled: March 20, 2019Publication date: October 10, 2019Applicant: B dot Medical Inc.Inventors: Kota MIZUSHIMA, Takuji FURUKAWA, Eri TAKESHITA, Yousuke HARA, Naoya SAOTOME, Yuichi SARAYA, Ryohei TANSHO
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Patent number: 10431418Abstract: 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: GrantFiled: November 9, 2018Date of Patent: October 1, 2019Assignee: B DOT MEDICAL INC.Inventors: Kota Mizushima, Takuji Furukawa, Eri Takeshita, Yousuke Hara, Naoya Saotome, Yuichi Saraya, Ryohei Tansho