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).

  • 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
  • Publication number: 20180020153
    Abstract: An image sensor includes: a first light-receiving unit that: receives a modulated optical signal having being reflected on an image-capturing target and including a modulated component with an intensity modulated at a predetermined modulation frequency; and outputs a first electrical signal; a second light-receiving unit that: receives a reference optical signal with an intensity modulated in synchronization with the modulated optical signal; and outputs a second electrical signal; and a detecting unit that: is provided to a substrate stacked on a substrate including the first light-receiving unit; refers to the second electrical signal; and detects, from the first electrical signal, a third electrical signal corresponding to the modulated component.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 18, 2018
    Applicant: NIKON CORPORATION
    Inventors: Wataru FUNAMIZU, 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: 9857445
    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: Grant
    Filed: January 23, 2014
    Date of Patent: January 2, 2018
    Inventors: Kazuyuki Soejima, Haruki Nakamura, Takuma Kawai, Kazuya Okamoto
  • Patent number: 9802959
    Abstract: A process for preparing a compound shown by formula (W5): wherein each Hal is independently chloro or bromo, using a novel process for preparing a pyridine derivative represented by formula (W2), wherein R6d is as defined herein.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 31, 2017
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yukihito Sumino, Moriyasu Masui, Diasuke Yamada, Fumiya Ikarashi, Kazuya Okamoto
  • Patent number: 9799224
    Abstract: A platoon travel system organizes a platoon having plural platoon vehicles traveling in two vehicle groups, in which a preset inter-vehicle distance is reserved between each of the platoon vehicles. When a new vehicle joins in the platoon, the platoon travel system adjusts the inter-vehicle distance by decelerating, among all platoon vehicles, deceleration target vehicles that are the platoon vehicles behind a join position in the platoon, which are included in a latter one of the two vehicle groups.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: October 24, 2017
    Assignee: DENSO CORPORATION
    Inventor: Kazuya Okamoto
  • Publication number: 20170302859
    Abstract: Provided is a light detecting apparatus including: a first photoelectric converting element which outputs a first electrical signal in accordance with an incident light including a modulated light component and a background light component; a filter which outputs a second electrical signal resulting from the modulated light component being reduced in the incident light; and a signal processor which subtracts the second electrical signal from the first electrical signal to reduce a component corresponding to the background light component in the first electrical signal.
    Type: Application
    Filed: May 9, 2017
    Publication date: October 19, 2017
    Applicant: NIKON CORPORATION
    Inventors: Sota NAKANISHI, Wataru FUNAMIZU, Kazuya OKAMOTO, Shiro TSUNAI, Isao SUGAYA
  • Publication number: 20170297999
    Abstract: We provide a novel and useful process for preparing triphenyl-butene derivative. A process for the preparation of a compound represented by Formula (IV): wherein R1 is hydrogen or substituted or unsubstituted alkyl, characterized by reacting a compound represented by Formula (V): with a compound represented by Formula (VI): wherein R1 has the same meaning as defined above, in the presence of 1) a polyvalent metal chloride, 2) a reducing agent and 3) an alkali metal salt and/or a substituted or unsubstituted phenol.
    Type: Application
    Filed: September 15, 2015
    Publication date: October 19, 2017
    Applicant: Shionogo & Co., Ltd
    Inventors: Kazuya Okamoto, Tatsuhiko Ueno, Takashi Toyota, Yuusuke Satou
  • Publication number: 20170293006
    Abstract: According to one embodiment, a MRI apparatus includes an RF coil apparatus receiving MR signals by coil elements corresponding to channels, modurating the MR signals to have different frequencies for each of the channels, and outputting an analog multiplexed signal in which the MR signals with different frequencies are composited over the channels, and a receiver including ADC circuitry converting the analog multiplexed signal to a digital multiplexed signal, and predetermined number of separation channels separating the digital multiplexed signal, based on the number of the channels relating to composition of the MR signals with the different frequencies. The receiver stops a separation process of the digital multiplexed signal for separation channels not used in the separation process among the predetermined number of separation channels.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 12, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Kazuyuki SOEJIMA, Kazuya OKAMOTO
  • Publication number: 20170278803
    Abstract: A substrate stacking apparatus that stacks first and second substrates on each other, by forming a contact region where the first substrate held by a first holding section and the second substrate held by a second holding section contact each other, at one portion of the first and second substrates, and expanding the contact region from the one portion by releasing holding of the first substrate by the first holding section, wherein an amount of deformation occurring in a plurality of directions at least in the first substrate differs when the contact region expands, and the substrate stacking apparatus includes a restricting section that restricts misalignment between the first and second substrates caused by a difference in the amount of deformation. In the substrate stacking apparatus above, the restricting section may restrict the misalignment such that an amount of the misalignment is less than or equal to a prescribed value.
    Type: Application
    Filed: June 9, 2017
    Publication date: September 28, 2017
    Applicant: NIKON CORPORATION
    Inventors: Isao Sugaya, Kazuya Okamoto, Hajime Mitsuishi, Minoru Fukuda
  • Publication number: 20170240564
    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: March 28, 2017
    Publication date: August 24, 2017
    Inventors: Yukihito SUMINO, Moriyasu MASUI, Daisuke YAMADA, Fumiya IKARASHI, Kazuya OKAMOTO
  • Publication number: 20170197943
    Abstract: The present invention relates to a Sonogashira-Carbonylation reaction using two types of gas, as well as novel crystals which can control a heat of the said reaction and the process of producing the same. In addition, the present invention relates to a ligand (additive) to prevent the deactivation of a palladium catalyst.
    Type: Application
    Filed: May 28, 2015
    Publication date: July 13, 2017
    Applicant: Shionogi & Co., Ltd.
    Inventors: Genta TADANO, Fumiya IKARASHI, Kazuya OKAMOTO, Toshikatsu MAKI, Motoyuki HAGIHARA
  • Publication number: 20170153303
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a plurality of first coil elements and a connector. The first coil elements are embedded in a couchtop on which a subject is placed. The connector is provided in such a region of the couchtop that is positioned on the inside of the loop of at least one of the first coil elements. It is possible to attach and detach a second coil element different from the first coil elements to and from the connector.
    Type: Application
    Filed: November 16, 2016
    Publication date: June 1, 2017
    Applicant: Toshiba Medical Systems Corporation
    Inventors: Sadanori TOMIHA, Kazuya OKAMOTO, Manabu ISHll, Satoshi IMAI, Mitsuo TAKAGI, Miyuki OTA
  • Patent number: 9650394
    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, R2d, and R4d are as defined herein.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: May 16, 2017
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yukihito Sumino, Moriyasu Masui, Daisuke Yamada, Fumiya Ikarashi, Kazuya Okamoto
  • Patent number: 9644563
    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: Grant
    Filed: February 21, 2013
    Date of Patent: May 9, 2017
    Assignee: DENSO CORPORATION
    Inventor: Kazuya Okamoto
  • Publication number: 20170069677
    Abstract: A detector comprises a plurality of photoelectric converters to output an electrical signal corresponding to an incident light, and a plurality of filter circuits provided corresponding to each of the plurality of photoelectric converters or to each of a plurality of element groups respectively including a predetermined number of the photoelectric converters of the plurality of photoelectric converters, the plurality of filter circuits attenuating a signal having a predetermined frequency from the electrical signal output from the plurality of photoelectric converters, In the above-described detector, the plurality of photoelectric converters may be provided in a first substrate, and the plurality of filter circuits may be provided in a second substrate laminated on the first substrate.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 9, 2017
    Applicant: NIKON CORPORATION
    Inventors: Osamu SARUWATARI, Shigeru AOKI, Kazuya OKAMOTO, Isao SUGAYA, Masashi OKADA, Hiroshi OHKI
  • Patent number: 9545218
    Abstract: In one embodiment, an RF coil device includes a base board, a belt member, a first coil element, a second coil element inside the base board, and a connecting unit. Both ends of the belt member are respectively connected to mutually separated places on the base board, so that the center part of the belt member is located on the anterior surface of the base board. The belt member is curved to form airspace between the center part thereof and the anterior surface for letting an arm pass through in interdigitation state. The first coil element includes first and second partial coils inside the belt member, and becomes a loop coil element by their connection. The connecting unit detachably connects the base board to the belt member, and mutually connects the first and second partial coils in the interdigitation state.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: January 17, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Miyuki Ota, Sadanori Tomiha, Shinji Mitsui, Mitsuo Takagi, Hiroki Motohashi, Kazuya Okamoto, Junichi Makita
  • Patent number: 9519038
    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: Grant
    Filed: July 18, 2013
    Date of Patent: December 13, 2016
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuya Okamoto, Hiromitsu Takamori, Yoshinori Hamamura
  • Publication number: 20160352243
    Abstract: A converter mounting board includes: an electronic component which is supplied an electric current; a high-frequency DC-DC converter that supplies a direct current corresponding to a fast change of the electric current of the electronic component; and a low-frequency DC-DC converter located far away from the electronic component than the high-frequency DC-DC converter and supplies a direct current corresponding to a slow change of the electric current of the electronic component.
    Type: Application
    Filed: May 18, 2016
    Publication date: December 1, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kazuya OKAMOTO, Hironobu Kageyama
  • Patent number: 9505783
    Abstract: The present invention provides a pyrone derivative and a pyridone derivative, which are novel intermediates for synthesizing an anti-influenza drug, a method of producing the same, and a method of using the same.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: November 29, 2016
    Assignee: Shionogi & Co., Ltd.
    Inventors: Yukihito Sumino, Kazuya Okamoto, Moriyasu Masui, Toshiyuki Akiyama