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).
-
Publication number: 20240085832Abstract: The present invention provides a fixing device including a flexible cylindrical rotary member and an inner-surface opposing portion that opposes an inner surface of the rotary member at an end portion of the rotary member in a generatrix direction. The inner-surface opposing portion moves upstream in a recording material conveying direction in accordance with lateral shift of the rotary member in the generatrix direction. This restricts the lateral shift of the rotary member.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Inventors: Hideki Ohta, Terutaka Endo, Seiji Obata, Jiro Moriya, Takayuki Mizuta
-
Patent number: 10942235Abstract: 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: GrantFiled: March 28, 2019Date of Patent: March 9, 2021Assignee: NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGYInventors: Md Shahadat Hossain Akram, Takayuki Obata, Taiga Yamaya
-
Patent number: 10627466Abstract: 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: GrantFiled: January 11, 2017Date of Patent: April 21, 2020Assignee: NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGYInventors: Taiga Yamaya, Takayuki Obata
-
Publication number: 20190302206Abstract: 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: ApplicationFiled: March 28, 2019Publication date: October 3, 2019Applicant: NATIONAL INSTITUTES FOR QUANTUM AND RADIOLOGICAL SCIENCE AND TECHNOLOGYInventors: Md Shahadat Hossain Akram, Takayuki OBATA, Taiga YAMAYA
-
Patent number: 10234570Abstract: 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: GrantFiled: July 10, 2013Date of Patent: March 19, 2019Assignees: Toshiba Medical Systems Corporation, National Institutes for Quantum and Radiological Science and TechnologyInventors: Taiga Yamaya, Takayuki Obata, Iwao Kanno, Takuzo Takayama, Hitoshi Yamagata, Kazuya Okamoto
-
Patent number: 9880236Abstract: 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: GrantFiled: May 1, 2013Date of Patent: January 30, 2018Assignees: National Institute for Quantum and Radiological Science and Technology, Toshiba Medical Systems CorporationInventors: Takayuki Obata, Taiga Yamaya, Iwao Kanno, Hitoshi Yamagata, Takuzo Takayama, Kazuya Okamoto
-
Patent number: 9864028Abstract: 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: GrantFiled: April 30, 2013Date of Patent: January 9, 2018Assignees: National Institutes for Quantum and Radiological Science and Technology, Toshiba Medical Systems CorporationInventors: Iwao Kanno, Takayuki Obata, Taiga Yamaya, Kazuya Okamoto, Takuzo Takayama, Hitoshi Yamagata
-
Patent number: 9721408Abstract: 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: GrantFiled: August 14, 2013Date of Patent: August 1, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Takayuki Obata, Ryuichi Yoshida, Masanari Ueda
-
Publication number: 20170168127Abstract: 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: ApplicationFiled: January 11, 2017Publication date: June 15, 2017Applicant: c/o National Institutes For Quantum And Radiological Science And TechnologyInventors: Taiga YAMAYA, Takayuki OBATA
-
Patent number: 9510797Abstract: 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: GrantFiled: October 25, 2010Date of Patent: December 6, 2016Assignees: 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: 9342903Abstract: 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: GrantFiled: March 28, 2013Date of Patent: May 17, 2016Assignees: NATIONAL INSTITUTE OF RADIOLOGICAL SERVICES, SHIMADZU CORPORATIONInventors: Taiga Yamaya, Takayuki Obata, Mikio Suga, Hiroshi Kawaguchi, Yoshiyuki Yamakawa
-
Publication number: 20150254913Abstract: 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: ApplicationFiled: August 14, 2013Publication date: September 10, 2015Applicant: Nissan Motor Co., Ltd.Inventors: Takayuki Obata, Ryuichi Yoshida, Masanari Ueda
-
Publication number: 20150117736Abstract: 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: ApplicationFiled: March 28, 2013Publication date: April 30, 2015Inventors: Taiga Yamaya, Takayuki Obata, Mikio Suga, Hiroshi Kawaguchi, Yoshiyuki Yamakawa
-
Publication number: 20140135613Abstract: 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: ApplicationFiled: October 23, 2013Publication date: May 15, 2014Applicant: NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCESInventors: Taiga YAMAYA, Takayuki OBATA
-
Publication number: 20130324836Abstract: 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: ApplicationFiled: July 10, 2013Publication date: December 5, 2013Inventors: Taiga YAMAYA, Takayuki Obata, Iwao Kanno, Takuzo Takayama, Hitoshi Yamagata, Kazuya Okamoto
-
Publication number: 20130241555Abstract: 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: ApplicationFiled: May 1, 2013Publication date: September 19, 2013Applicants: Toshiba Medical Systems Corporation, National Institute of Radiological SciencesInventors: Takayuki OBATA, Taiga YAMAYA, Iwao KANNO, Hitoshi YAMAGATA, Takuzo TAKAYAMA, Kazuya OKAMOTO
-
Publication number: 20130234710Abstract: 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: ApplicationFiled: April 30, 2013Publication date: September 12, 2013Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCESInventors: Iwao KANNO, Takayuki OBATA, Taiga YAMAYA, Kazuya OKAMOTO, Takuzo TAKAYAMA, Hitoshi YAMAGATA
-
Publication number: 20130211233Abstract: 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: ApplicationFiled: October 25, 2010Publication date: August 15, 2013Applicants: HAMAMATSU PHOTONICS K.K., NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCESInventors: Taiga Yamaya, Fumihiko Nishikido, Takayuki Obata, Mikio Suga, Kazuyuki Saito, Mitsuo Watanabe, Eiichi Tanaka
-
Publication number: 20120150017Abstract: 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: ApplicationFiled: March 12, 2009Publication date: June 14, 2012Applicant: NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCESInventors: Taiga Yamaya, Hideo Murayama, Takayuki Obata, Ichio Aoki
-
Publication number: 20110224534Abstract: 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: ApplicationFiled: December 3, 2010Publication date: September 15, 2011Applicant: NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCESInventors: Taiga YAMAYA, Takayuki OBATA