Patents by Inventor Kazuya Okamoto

Kazuya Okamoto 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: 20140132266
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus provided with a plurality of transmission channels includes a signal processing unit and a control unit. The signal processing unit acquires a radio frequency magnetic field emitted from each of the plurality of transmission channels through a receiver coil mounted on an object and measure a phase of the radio frequency magnetic field. The control unit determines a phase difference between the plurality of transmission channels based on the phase of the radio frequency magnetic field of each of the plurality of transmission channels measured by the signal processing unit. The control unit controls a phase of a radio frequency pulse inputted to each of the plurality of transmission channels, based on the phase difference.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuyuki SOEJIMA, Haruki NAKAMURA, Takuma KAWAI, Kazuya OKAMOTO
  • Patent number: 8704522
    Abstract: In one embodiment, an MRI apparatus includes first and second clock generators, a pulse generator, transmission and reception coils, pulse and phase detectors, and a corrector. The pulse generator generates an excitation pulse signal based on a clock signal generated by the first clock generator. The reception coil outputs a radio frequency signals corresponding to an excitation pulse transmitted from the transmission coil or an MR echo. The converter digitizes, synchronously with a clock signal generated by the second clock generator, the radio frequency signal, to obtain radio frequency data. The pulse detector detects excitation pulse data corresponding to the excitation pulse from the radio frequency data. The phase detector detects a phase of a pulse indicated by the detected excitation pulse data. The corrector corrects the radio frequency data based on the detected phase, to compensate for a phase offset which occurs in the echo during the digitization.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: April 22, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Koji Akita, Takahiro Sekiguchi, Toshiyuki Nakanishi, Kazuya Okamoto, Sojuro Kato
  • Publication number: 20140062485
    Abstract: According to one embodiment, an MRI apparatus (20A or 20B) includes a first radio communication unit (200A or 200B), a second radio communication unit (300A or 300B) and an image reconstruction unit (56). The first radio communication unit includes a connecting unit (201) detachably connected to an RF coil device (100A, 100B or 100C) which detects a nuclear magnetic resonance signal emitted from an object. The first radio communication unit acquires the nuclear magnetic resonance signal detected by the RF coil device via the connecting unit, and wirelessly transmits the acquired nuclear magnetic resonance signal. The second radio communication unit receives the nuclear magnetic resonance signal wirelessly transmitted from the first radio communication unit. The image reconstruction unit acquires the nuclear magnetic resonance signal received by the second radio communication unit, and reconstructs image data of the object based on the nuclear magnetic resonance signal.
    Type: Application
    Filed: October 3, 2013
    Publication date: March 6, 2014
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventor: Kazuya OKAMOTO
  • Patent number: 8655630
    Abstract: A design workflow construction apparatus is provided for supporting design of an object having a plurality of design elements. In constructing the design workflow, the apparatus uses input variables, design variables, and intermediate variables. The design workflow construction apparatus includes means for acquiring object design elements and means for determining an order of designing the object design elements. The apparatus also includes means for determining the important design variables.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: February 18, 2014
    Assignee: Osaka University
    Inventors: Yoshiharu Iwata, Ryohei Satoh, Keiji Kudo, Atsushi Taya, Kazuya Okamoto, Hidenori Murata, Koichiro Atsumi, Eiji Arai, Eiji Morinaga
  • Patent number: 8643362
    Abstract: According to one embodiment, a apparatus includes a coil, a clock generator, an echo transmitter, a carrier generator, a clock transmitter, a regenerator, an receiver, a reconstructor, a detector, and a controller. The echo transmitter generates and transmits an echo transmission signal synchronously with a clock signal generated by the clock generator to wirelessly transmit an echo signal output from the col. The carrier generator generates a carrier signal have a frequency within a variable range. The clock transmitter wirelessly transmits a clock transmission signal. The regenerator regenerates the clock signal based on the transmitted clock transmission signal. The receiver extracts the echo signal synchronously with the regenerated clock signal from the transmitted echo transmission signal. The detector detects a frequency of an interference wave.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: February 4, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takahiro Sekiguchi, Koji Akita, Toshiyuki Nakanishi, Kazuya Okamoto, Sojuro Kato
  • Publication number: 20140021954
    Abstract: According to one embodiment, an MRI apparatus (20) obtains a nuclear magnetic resonance signal from an RF coil device (100) which detects the nuclear magnetic resonance signal emitted from an object (P), and this MRI apparatus (20) includes a first radio communication unit (200), a second radio communication unit (300) and an image reconstruction unit (56). The first radio communication unit (200) obtains the nuclear magnetic resonance signal detected by the RF coil device (100), and wirelessly transmits the nuclear magnetic resonance signal in a digitized state via an induced electric field. The second radio communication unit (300) receives the nuclear magnetic resonance signal wirelessly transmitted from the first radio communication unit (200) via the induced electric field. The image reconstruction unit (56) reconstructs image data of the object (P) based on the nuclear magnetic resonance signal received by the second radio communication unit (300).
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Inventors: Kazuya OKAMOTO, Hiromitsu TAKAMORI, Yoshinori HAMAMURA
  • Publication number: 20140011995
    Abstract: A process for preparing a compound represented by formula (Y1) or (Y2) [wherein Rx is an optionally substituted carbocyclyl lower alkyl, or the like] or a salt thereof, using a novel process for preparing a pyridone derivative represented by formula (X4) [wherein R1d is hydrogen, halogen, or the like; R2d is hydrogen, a lower alkyl optionally substituted with substituent E, or the like; R4d is a lower alkyl optionally substituted with substituent E, or the like; and R6d is a lower alkyl group optionally substituted with substituent group E, or the like].
    Type: Application
    Filed: August 4, 2011
    Publication date: January 9, 2014
    Inventors: Yukihito Sumino, Moriyasu Masui, Diasuke Yamada, Fumiya Ikarashi, Kazuya Okamoto
  • 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: 20130296689
    Abstract: A PET-MRI apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a high-frequency coil, an MR image reconstruction unit, a PET detector, and a PET image reconstruction unit. The high-frequency coil applies a high-frequency magnetic field to a subject placed in the static magnetic field and detects a magnetic resonance signal emitted from the subject in response to application of the high-frequency magnetic field and a gradient magnetic field. The PET detector has a ring shape and detects a gamma ray emitted from a positron-emitting radionuclide injected into the subject. The coil conductor of the high-frequency coil is made up of a first high-frequency shield that covers the outer surface of the PET detector.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventors: Kazuya OKAMOTO, Takuzo Takayama, Hitoshi Yamagata
  • Publication number: 20130274915
    Abstract: Provided is a transport method comprising judging whether there is a possibility that misalignment greater than or equal to a threshold value occurs between substrates to be layered that are held by a pair of substrate holders aligned and stacked by an aligning section, the misalignment occurring when the pair of substrate holders is transported from the aligning section to a pressure applying section; and if the judgment indicates that there is the possibility of misalignment, transporting the pair of substrate holders to a region other than the pressure applying section. Whether there is the possibility of misalignment may be judged based on acceleration of the substrate holders. Whether there is the possibility of misalignment may be judged based on acceleration of a transporting section that transports the substrate holders. Whether there is the possibility of misalignment may be judged based on relative positions of the substrate holders.
    Type: Application
    Filed: June 12, 2013
    Publication date: October 17, 2013
    Inventors: Hidehiro Maeda, Kazuya Okamoto, Yasuaki Tanaka
  • Publication number: 20130271211
    Abstract: Provided is a multi-layered semiconductor apparatus with improved heat diffusion and improved heat release. The multi-layered semiconductor apparatus (100) includes a plurality of layered semiconductor chips (20-1, 20-2) that each include at least one circuit region, and the circuit regions are arranged such that heat generated by the circuit regions as a result of the circuit regions being driven is spread out. The multi-layered semiconductor apparatus (100) further comprises a heat releasing section (50) that releases the heat generated by the circuit regions, and the circuit regions are arranged such that there is less thermal resistance between the heat releasing section and circuit regions that generate a greater amount of heat per unit area.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 17, 2013
    Applicant: NIKON CORPORATION
    Inventors: Isao SUGAYA, Kazuya Okamoto
  • Patent number: 8560812
    Abstract: A multithread execution device includes: a program memory in which a plurality of programs are stored; an instruction issue unit that issues an instruction retrieved from the program memory; an instruction execution unit that executes the instruction; a target execution speed information memory that stores target execution speed information of the instruction; an execution speed monitor that monitors an execution speed of the instruction; a feedback control unit that commands the instruction issue unit to issue the instruction such that the execution speed of the instruction approximately corresponds to the target execution speed information.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 15, 2013
    Assignees: Toyota Jidosha Kabushiki Kaisha, Renesas Electronics Corporation
    Inventors: Tetsuaki Wakabayashi, Koji Adachi, Kazuya Okamoto
  • Publication number: 20130251494
    Abstract: A stacking apparatus that stacks chip assemblies each having a plurality of chips disposed continuously with circuit patterns and electrodes, includes: a plurality of stages each allowed to move arbitrarily, on which the chip assemblies are placed; a storage unit that stores an estimated extent of change in a position of an electrode at each chip, expected to occur as heat is applied to the chip assemblies placed on the plurality of stages during a stacking process; and a control unit that sets positions of the plurality of stages to be assumed relative to each other during the stacking process based upon the estimated extent of change in the position of the electrode at each chip provided from the storage unit and position information indicating positions of individual chips formed at the chip assemblies and controls at least one of the plurality of stages.
    Type: Application
    Filed: May 1, 2013
    Publication date: September 26, 2013
    Applicant: NIKON CORPORATION
    Inventor: Kazuya OKAMOTO
  • Publication number: 20130249560
    Abstract: According to one embodiment, an MRI apparatus includes a data acquisition system and a control system. The data acquisition system acquires MR signals from a subject. The control system acquires the MR signals by controlling the data acquisition system to generate image data. The data acquisition system has a WB coil, an RF coil and a breaker circuit. The WB coil applies the RF magnetic field to the imaging area. The RF coil applies the RF magnetic field to the imaging area when an RF pulse has been applied from the control system through a connector. The RF coil is set inside the WB coil. The breaker circuit electrically breaks a part of a circuit constituting the RF coil when the connector of the RF coil has been disconnected to the control system.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuya Okamoto, Manabu Ishii
  • 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: 20130238222
    Abstract: An engine control unit of a power system is provided with a memory module which stores a fuel consumption data. An electric power ECU of a power supply system controls an operation mode of a generator based on a fuel consumption associated data transmitted from an engine control unit. An air-condition ECU of a heat system controls an operation mode of a compressor based on the fuel consumption associated data transmitted from the engine control unit. By updating the fuel consumption data stored in the engine control unit, control characteristics of the power supply system and the heat system can be varied. The fuel consumption associated data is transmitted to the ECU in preference to the other data. Moreover, the fuel consumption associated data is transmitted in a period which the electric power ECU and the air-condition ECU require.
    Type: Application
    Filed: February 21, 2013
    Publication date: September 12, 2013
    Applicant: Denso Corporation
    Inventor: Kazuya OKAMOTO
  • Patent number: 8496037
    Abstract: Provided is an adhesive injection device for injecting an adhesive between the substrates of laminates which each comprise at least two substrates that face each other. The adhesive injection device is provided with: a cassette which holds multiple laminates aligned along the direction of lamination of the substrates; and an adhesive injector which injects adhesive into each inter-substrate space, as the laminates are being held in the cassette, so that the actions of injecting the adhesive into each inter-substrate space overlap chronologically. Holding multiple laminates in the cassette makes it possible to treat the multiple laminates as a unit. By injecting adhesive into each inter-substrate space, as the laminates are being held, so that the actions of injecting the adhesive into each inter-substrate space overlap chronologically, the injection of adhesive into multiple laminates is simplified, and the time required for injection can be reduced.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: July 30, 2013
    Assignee: Shimadzu Corporation
    Inventors: Masahisa Higashi, Hideki Okamoto, Eisaku Nakao, Kazuya Okamoto
  • Patent number: 8489227
    Abstract: Provided is a transport method comprising judging whether there is a possibility that misalignment greater than or equal to a threshold value occurs between substrates to be layered that are held by a pair of substrate holders aligned and stacked by an aligning section, the misalignment occurring when the pair of substrate holders is transported from the aligning section to a pressure applying section; and if the judgment indicates that there is the possibility of misalignment, transporting the pair of substrate holders to a region other than the pressure applying section. Whether there is the possibility of misalignment may be judged based on at least one of an acceleration of the substrate holders, an acceleration of a transporting section that transports the substrate holders, relative positions of the substrate holders, or relative positions of the transporting section and one of the pair of substrate holders.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 16, 2013
    Assignee: Nikon Corporation
    Inventors: Hidehiro Maeda, Kazuya Okamoto, Yasuaki Tanaka
  • Patent number: 8440472
    Abstract: A stacking apparatus that stacks chip assemblies each having a plurality of chips disposed continuously with circuit patterns and electrodes, includes: a plurality of stages each allowed to move arbitrarily, on which the chip assemblies are placed; a storage unit that stores an estimated extent of change in a position of an electrode at each chip, expected to occur as heat is applied to the chip assemblies placed on the plurality of stages during a stacking process; and a control unit that sets positions of the plurality of stages to be assumed relative to each other during the stacking process based upon the estimated extent of change in the position of the electrode at each chip provided from the storage unit and position information indicating positions of individual chips formed at the chip assemblies and controls at least one of the plurality of stages.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: May 14, 2013
    Assignee: Nikon Corporation
    Inventor: Kazuya Okamoto