Patents by Inventor Keisuke Taguchi

Keisuke Taguchi 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: 10706975
    Abstract: An operating floor confinement has an operating floor, a sidewall that surrounds the operating floor, a ceiling that is provided on an upper portion of the sidewall, a reactor well, a fuel pool, a dryer and separator pit, an equipment hatch that is provided on the sidewall, an air lock that is provided on the sidewall, and an isolation valve that is provided in a penetration line. The operating floor confinement forms a pressure boundary having pressure resistance and a leakage protection function. The operating floor confinement is separated from an equipment area of the reactor building and has no blowout panel.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: July 7, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Sato, Keiji Matsumoto, Keisuke Taguchi
  • Publication number: 20160336081
    Abstract: An embodiment of an operating floor confinement has: an operating floor, a sidewall that surrounds the operating floor, a ceiling that is provided on an upper portion of the sidewall, a reactor well, a fuel pool, a dryer and separator pit, an equipment hatch that is provided on the sidewall, an air lock that is provided on the sidewall, and an isolation valve that is provided in a penetration. The operating floor confinement forms a pressure boundary having pressure resistance and a leakage protection function, is in contact with the containment vessel via a containment vessel head and separated from an equipment area of the reactor building, and has no blowout panel.
    Type: Application
    Filed: April 25, 2016
    Publication date: November 17, 2016
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takashi SATO, Keiji MATSUMOTO, Keisuke TAGUCHI
  • Patent number: 9083870
    Abstract: A drive device in which the frequency of a drive waveform applied to a piezoelectric element is easily settable with less obligation to consider resonance in a stationary member. The device includes a piezo element that expands and contracts according to a drive voltage, a transmission shaft that receives vibration produced by the piezo element, a stationary member that holds the transmission shaft in a slidable state along the longitudinal direction of the transmission shaft, and a lens holder that is displaced together with the piezo element and transmission shaft relative to the stationary member according to drive of the piezo element. The piezo element and the transmission shaft move in the moving direction of the lens holder in synchronization with the lens holder according to drive of the piezo element in the state where the piezo element is spaced from the stationary member.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: July 14, 2015
    Assignee: Hitachi Maxell, LTD.
    Inventors: Hitoshi Kawamura, Manabu Tani, Takashi Hasuda, Ikuo Shinta, Susumu Aoki, Keisuke Taguchi
  • Publication number: 20130314444
    Abstract: An image data transmitting device inputs and outputs to an external device, fisheye image data that includes a fisheye image captured by a lens that causes distortion to occur in an image at a wide angle view. The image data transmitting device includes a distortion correction processing unit that corrects the distortion of the fisheye image and forms a distortion corrected image; and a transmission image data generating unit divides along a scanning line, the distortion corrected image into a plurality of lines, re-arranges the lines based on a given criterion, forms a converted image, inserts the converted imaged into an area in which no effective video signal of the fisheye image data is present, and generates transmission image data.
    Type: Application
    Filed: April 3, 2013
    Publication date: November 28, 2013
    Applicant: TAMRON CO., LTD.
    Inventors: Toru IWAMOTO, Yuji Honjo, Keisuke Taguchi
  • Publication number: 20110242403
    Abstract: A drive device in which the frequency of a drive waveform applied to a piezoelectric element is easily settable with less obligation to consider resonance in a stationary member. The device includes a piezo element that expands and contracts according to a drive voltage, a transmission shaft that receives vibration produced by the element, a stationary member that holds the transmission shaft in a slidable state along the longitudinal direction of the transmission shaft, and a lens holder that is displaced together with the piezo element and transmission shaft relative to the stationary member according to drive of the piezo element. The piezo element and the transmission shaft move in the moving direction of the lens holder in synchronization with the lens holder according to drive of the piezo element in the state where the piezo element is spaced from the stationary member.
    Type: Application
    Filed: July 22, 2009
    Publication date: October 6, 2011
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Hitoshi Kawamura, Manabu Tani, Takashi Hasuda, Ikuo Shinta, Susumu Aoki, Keisuke Taguchi
  • Publication number: 20100141734
    Abstract: An imaging apparatus includes a plurality of imaging units each having a lens and an image pickup device. At least one of the imaging units is a wide-angle imaging unit having a lens with a wider angle of view, and at least another one is a zoom imaging unit having a lens with a narrower angle of view and a higher magnification and mounted rotatably to the imaging apparatus. The imaging apparatus includes a driving unit that rotates the zoom imaging unit to change an imaging range of the zoom imaging unit, an image comparison unit that compares a partial image of a wide-angle image captured by the wide-angle imaging unit and a magnified image captured by the zoom imaging unit, and an optical axis information update unit that updates optical axis information of the zoom imaging unit based on a comparison result of the image comparison unit.
    Type: Application
    Filed: October 27, 2009
    Publication date: June 10, 2010
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Manabu Tani, Keisuke Taguchi, Ikuo Shinta
  • Patent number: 7671510
    Abstract: An ultrasonic actuator according to an embodiment of the present invention includes: a stator generating a rotational driving force in accordance with a driving signal having a train pulse, which is used, for example, an AF mechanism; and a rotor converting the rotational driving force into actual movement. In the thus-structured ultrasonic actuator of the present invention, the driving signal is obtained by removing a predetermined number of pulses from the pulse train upon deceleration, and the remaining number of consecutive pulses is set to at least 2 or 4 or more.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: March 2, 2010
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hitoshi Kawamura, Keisuke Taguchi
  • Publication number: 20070133968
    Abstract: An ultrasonic actuator according to an embodiment of the present invention includes: a stator generating a rotational driving force in accordance with a driving signal having a train pulse, which is used, for example, an AF mechanism; and a rotor converting the rotational driving force into actual movement. In the thus-structured ultrasonic actuator of the present invention, the driving signal is obtained by removing a predetermined number of pulses from the pulse train upon deceleration, and the remaining number of consecutive pulses is set to at least 2 or 4 or more.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 14, 2007
    Inventors: Hitoshi Kawamura, Keisuke Taguchi