Patents by Inventor Takayuki OBATA

Takayuki OBATA 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: 10942235
    Abstract: PET or SPECT insert for MRI or MRS system with medium (3 T for example) to ultra high (7 T for example) magnetic field is provided. RF shielded radiation detector modules are separately disposed in a form of full or partial ring shape. The RF shielded radiation detector modules are electric ground conductors for microstrip transmission line coil RF array. Decoupling circuits in between grounded shield and/or in between microstrip conductors make electric isolation between coil elements.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 9, 2021
    Assignee: NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGY
    Inventors: Md Shahadat Hossain Akram, Takayuki Obata, Taiga Yamaya
  • Patent number: 10627466
    Abstract: A PET/MRI device includes an MRI device that has a measurement port, a PET detector that can be inserted into the measurement port, and a mechanism that can slide the PET detector into and out of the MRI measurement port. Thereby, the PET/MRI device allows MRI measurement during PET measurement.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 21, 2020
    Assignee: NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGY
    Inventors: Taiga Yamaya, Takayuki Obata
  • Publication number: 20190302206
    Abstract: PET or SPECT insert for MRI or MRS system with medium (3 T for example) to ultra high (7 T for example) magnetic field is provided. RF shielded radiation detector modules are separately disposed in a form of full or partial ring shape. The RF shielded radiation detector modules are electric ground conductors for microstrip transmission line coil RF array. Decoupling circuits in between grounded shield and/or in between microstrip conductors make electric isolation between coil elements.
    Type: Application
    Filed: March 28, 2019
    Publication date: October 3, 2019
    Applicant: NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGY
    Inventors: Md Shahadat Hossain Akram, Takayuki OBATA, Taiga YAMAYA
  • Patent number: 10234570
    Abstract: In a PET device, a first detector includes a plurality of first scintillators and detects gamma rays emitted from positron-emitting radionuclides injected into a subject. A second detector is provided on the outer circumferential side of the first detector, includes a plurality of second scintillators arranged in an arrangement surface density lower than that of the first scintillators, and detects gamma rays that have passed through the first detector. A counted information acquiring unit acquires, as first counted information and second counted information, the detection positions, energy values, and detection time regarding gamma rays detected by the first detector and the second detector. Based on the detection time contained in each of the first counted information and the second counted information, an energy value adder generate corrected counted information by summing the energy values contained in the first counted information and the second counted information.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 19, 2019
    Assignees: Toshiba Medical Systems Corporation, National Institutes for Quantum and Radiological Science and Technology
    Inventors: Taiga Yamaya, Takayuki Obata, Iwao Kanno, Takuzo Takayama, Hitoshi Yamagata, Kazuya Okamoto
  • Patent number: 9880236
    Abstract: In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a magnet that is a seamless structure generates a static magnetic field in a bore having a cylindrical shape. First detectors and second detectors are each formed in a ring shape and detect gamma rays emitted from positron emitting radionuclides injected into a subject. The first detectors and the second detectors are disposed with a space therebetween in an axial direction of the bore so as to interpose the magnetic field center of the static magnetic field therebetween.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: January 30, 2018
    Assignees: National Institute for Quantum and Radiological Science and Technology, Toshiba Medical Systems Corporation
    Inventors: Takayuki Obata, Taiga Yamaya, Iwao Kanno, Hitoshi Yamagata, Takuzo Takayama, Kazuya Okamoto
  • Patent number: 9864028
    Abstract: In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a transmitting radio frequency coil applies a radio frequency magnetic field on a subject placed in a static magnetic field. A detector is formed in a ring shape, disposed on a side adjacent to an outer circumference of the transmitting radio frequency coil, includes at least two PET detectors disposed with a space therebetween in an axial direction of a bore so as to interpose the magnetic field center of the static magnetic field therebetween, and detects gamma rays emitted from positron emitting radionuclides injected into the subject. Radio frequency shields are each formed in an approximately cylindrical shape, disposed between the transmitting radio frequency coil and the detector, and shield the radio frequency magnetic field generated by the transmitting radio frequency coil.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: January 9, 2018
    Assignees: National Institutes for Quantum and Radiological Science and Technology, Toshiba Medical Systems Corporation
    Inventors: Iwao Kanno, Takayuki Obata, Taiga Yamaya, Kazuya Okamoto, Takuzo Takayama, Hitoshi Yamagata
  • Patent number: 9721408
    Abstract: A control apparatus for a vehicle opening/closing member that operates the opening/closing member provided in the vehicle in response to a physical expression of a user, having a user authentication unit that authenticates a user whose physical expression is to be detected, a physical expression detecting unit that detects the physical expression of the user, an operation determining unit that determines an operating state of at least one of the user authentication unit and the physical expression detecting unit, and a notification unit that sends notification that, in accordance with a determination result of the operating state determined by the operation determining unit, the user has been authenticated, the detection of the physical expression has been completed, or the detection of the physical expression has failed.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: August 1, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takayuki Obata, Ryuichi Yoshida, Masanari Ueda
  • Publication number: 20170168127
    Abstract: A PET/MRI device includes an MRI device that has a measurement port, a PET detector that can be inserted into the measurement port, and a mechanism that can slide the PET detector into and out of the MRI measurement port. Thereby, the PET/MRI device allows MRI measurement during PET measurement.
    Type: Application
    Filed: January 11, 2017
    Publication date: June 15, 2017
    Applicant: c/o National Institutes For Quantum And Radiological Science And Technology
    Inventors: Taiga YAMAYA, Takayuki OBATA
  • Patent number: 9510797
    Abstract: In the integrated PET/MRI scanner provided with an RF coil for MRI and a plurality of PET detectors in the measuring port of the MRI scanner, the PET detectors are disposed with spaces therebetween and at least the transmitting coil elements of the RF coil for MRI are disposed between adjacent PET detectors. Here, the PET detectors are disposed in the circumferential direction of the measuring port with spaces therebetween and the transmitting coil elements are disposed in the axial direction of the measuring port. Alternatively, at least some of the PET detectors are disposed in the axial direction of the measuring port with spaces therebetween and the transmitting coil elements are disposed between adjacent PET detectors. The PET detectors can be DOI-type detectors capable of detecting position in the depth direction.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: December 6, 2016
    Assignees: NATIONAL INSTITUTE OF RADIOLOGICAL SICENCES, HAMAMATSU PHOTONICS K.K.
    Inventors: Taiga Yamaya, Fumihiko Nishikido, Takayuki Obata, Mikio Suga, Kazuyuki Saito, Mitsuo Watanabe, Eiichi Tanaka
  • Patent number: 9342903
    Abstract: When an image for PET attenuation correction is generated from an MR image, the MR image captured by MRI is segmented into regions according to pixel values. In a region in which a radiation attenuation coefficient is considered to be uniform, a radiation attenuation correction value is determined by referring to an existing radiation attenuation correction value table. In a region including multiple tissues having different radiation attenuation coefficients, a radiation attenuation correction value is determined by referring to a standard image. In such a manner, an image for PET attenuation correction in which tissues having similar pixel values in the MR image but different attenuation coefficients for radiation can be distinguished and that can accommodate individual differences and an affected area such as a space occupying lesion (for example, a cancer, abscess, or the like) and an organic defect is generated.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: May 17, 2016
    Assignees: NATIONAL INSTITUTE OF RADIOLOGICAL SERVICES, SHIMADZU CORPORATION
    Inventors: Taiga Yamaya, Takayuki Obata, Mikio Suga, Hiroshi Kawaguchi, Yoshiyuki Yamakawa
  • Publication number: 20150254913
    Abstract: A control apparatus for a vehicle opening/closing member that operates the opening/closing member provided in the vehicle in response to a physical expression of a user, having a user authentication unit that authenticates a user whose physical expression is to be detected, a physical expression detecting unit that detects the physical expression of the user, an operation determining unit that determines an operating state of at least one of the user authentication unit and the physical expression detecting unit, and a notification unit that sends notification that, in accordance with a determination result of the operating state determined by the operation determining unit, the user has been authenticated, the detection of the physical expression has been completed, or the detection of the physical expression has failed.
    Type: Application
    Filed: August 14, 2013
    Publication date: September 10, 2015
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Takayuki Obata, Ryuichi Yoshida, Masanari Ueda
  • Publication number: 20150117736
    Abstract: When an image for PET attenuation correction is generated from an MR image, the MR image captured by MRI is segmented into regions according to pixel values. In a region in which a radiation attenuation coefficient is considered to be uniform, a radiation attenuation correction value is determined by referring to an existing radiation attenuation correction value table. In a region including multiple tissues having different radiation attenuation coefficients, a radiation attenuation correction value is determined by referring to a standard image. In such a manner, an image for PET attenuation correction in which tissues having similar pixel values in the MR image but different attenuation coefficients for radiation can be distinguished and that can accommodate individual differences and an affected area such as a space occupying lesion (for example, a cancer, abscess, or the like) and an organic defect is generated.
    Type: Application
    Filed: March 28, 2013
    Publication date: April 30, 2015
    Inventors: Taiga Yamaya, Takayuki Obata, Mikio Suga, Hiroshi Kawaguchi, Yoshiyuki Yamakawa
  • Publication number: 20140135613
    Abstract: A PET/MRI device includes an MRI device that has a measurement port, a PET detector that can be inserted into the measurement port, and a mechanism that can slide the PET detector into and out of the MRI measurement port. Thereby, the PET/MRI device allows MRI measurement during PET measurement.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 15, 2014
    Applicant: NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
    Inventors: Taiga YAMAYA, Takayuki OBATA
  • Publication number: 20130324836
    Abstract: In a PET device according to an embodiment, a first detector includes a plurality of first scintillators and detects gamma rays that are emitted from positron-emitting radionuclides that are injected into a subject. A second detector is provided on the outer circumferential side of the first detector, includes a plurality of second scintillators arranged in an arrangement surface density lower than that of the first scintillators, and detects gamma rays that have passed through the first detector. A counted information acquiring unit acquires, as first counted information and second counted information, the detection positions, energy values, and detection time regarding gamma rays detected by the first detector and the second detector.
    Type: Application
    Filed: July 10, 2013
    Publication date: December 5, 2013
    Inventors: Taiga YAMAYA, Takayuki Obata, Iwao Kanno, Takuzo Takayama, Hitoshi Yamagata, Kazuya Okamoto
  • Publication number: 20130241555
    Abstract: In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a magnet that is a seamless structure generates a static magnetic field in a bore having a cylindrical shape. First detectors and second detectors are each formed in a ring shape and detect gamma rays emitted from positron emitting radionuclides injected into a subject. The first detectors and the second detectors are disposed with a space therebetween in an axial direction of the bore so as to interpose the magnetic field center of the static magnetic field therebetween.
    Type: Application
    Filed: May 1, 2013
    Publication date: September 19, 2013
    Applicants: Toshiba Medical Systems Corporation, National Institute of Radiological Sciences
    Inventors: Takayuki OBATA, Taiga YAMAYA, Iwao KANNO, Hitoshi YAMAGATA, Takuzo TAKAYAMA, Kazuya OKAMOTO
  • Publication number: 20130234710
    Abstract: In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a transmitting radio frequency coil applies a radio frequency magnetic field on a subject placed in a static magnetic field. A detector is formed in a ring shape, disposed on a side adjacent to an outer circumference of the transmitting radio frequency coil, includes at least two PET detectors disposed with a space therebetween in an axial direction of a bore so as to interpose the magnetic field center of the static magnetic field therebetween, and detects gamma rays emitted from positron emitting radionuclides injected into the subject. Radio frequency shields are each formed in an approximately cylindrical shape, disposed between the transmitting radio frequency coil and the detector, and shield the radio frequency magnetic field generated by the transmitting radio frequency coil.
    Type: Application
    Filed: April 30, 2013
    Publication date: September 12, 2013
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
    Inventors: Iwao KANNO, Takayuki OBATA, Taiga YAMAYA, Kazuya OKAMOTO, Takuzo TAKAYAMA, Hitoshi YAMAGATA
  • Publication number: 20130211233
    Abstract: In the integrated PET/MRI scanner provided with an RF coil for MRI and a plurality of PET detectors in the measuring port of the MRI scanner, the PET detectors are disposed with spaces therebetween and at least the transmitting coil elements of the RF coil for MRI are disposed between adjacent PET detectors. Here, the PET detectors are disposed in the circumferential direction of the measuring port with spaces therebetween and the transmitting coil elements are disposed in the axial direction of the measuring port. Alternatively, at least some of the PET detectors are disposed in the axial direction of the measuring port with spaces therebetween and the transmitting coil elements are disposed between adjacent PET detectors. The PET detectors can be DOI-type detectors capable of detecting position in the depth direction.
    Type: Application
    Filed: October 25, 2010
    Publication date: August 15, 2013
    Applicants: HAMAMATSU PHOTONICS K.K., NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
    Inventors: Taiga Yamaya, Fumihiko Nishikido, Takayuki Obata, Mikio Suga, Kazuyuki Saito, Mitsuo Watanabe, Eiichi Tanaka
  • Publication number: 20120150017
    Abstract: A PET/MRI hybrid machine that combines a PET device with an MRI device, includes: an open PET device that has a PET field of view at least part of which is an open space accessible from outside; and an open MRI device that has an MRI field of view at least part of which is an open space accessible from outside, and the open space of the PET field of view and the open space of the MRI field of view are allowed to overlap each other at least in part. This makes it possible to simultaneously measure and image the same open space accessible from outside by the PET device and the MRI device, thereby acquiring functional information and morphological information at the same time.
    Type: Application
    Filed: March 12, 2009
    Publication date: June 14, 2012
    Applicant: NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
    Inventors: Taiga Yamaya, Hideo Murayama, Takayuki Obata, Ichio Aoki
  • Publication number: 20110224534
    Abstract: A PET/MRI device includes an MRI device that has a measurement port, a PET detector that can be inserted into the measurement port, and a mechanism that can slide the PET detector into and out of the MRI measurement port. Thereby, the PET/MRI device allows MRI measurement during PET measurement.
    Type: Application
    Filed: December 3, 2010
    Publication date: September 15, 2011
    Applicant: NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES
    Inventors: Taiga YAMAYA, Takayuki OBATA