Patents by Inventor Kei TAKAKURA

Kei TAKAKURA 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: 10712000
    Abstract: An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 14, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka Ozeki, Yoshihiko Takemura, Tomoyuki Suzuki, Kei Takakura, Hiroshi Ito, Keiichi Mashio, Hiroshi Aoyagi, Takeshi Kawana, Akira Yamashita, Ryutaro Okada, Keita Tsunemori
  • Patent number: 10562072
    Abstract: A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 18, 2020
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka Ozeki, Yoshihiko Takemura, Tomoyuki Suzuki, Kei Takakura, Hiroshi Ito, Keiichi Mashio, Hiroshi Aoyagi, Takeshi Kawana, Akira Yamashita, Ryutaro Okada, Keita Tsunemori
  • Publication number: 20190178492
    Abstract: An ash discharge system has a conveyor device which transports clinker ash out of a region that is below a furnace bottom of a boiler furnace; and a separation device provided at a passage of the clinker ash from the furnace bottom to the conveyor device, the separation device including a separator which permits the clinker ash with a predetermined size or less to pass through the separator, and inhibits a large-mass clinker from passing through the separator, the large-mass clinker being the clinker ash with a size larger than the predetermined size.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 13, 2019
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka OZEKI, Yoshihiko TAKEMURA, Tomoyuki SUZUKI, Kei TAKAKURA, Hiroshi ITO, Keiichi MASHIO, Hiroshi AOYAGI, Takeshi KAWANA, Akira YAMASHITA, Ryutaro OKADA, Keita TSUNEMORI
  • Publication number: 20190009303
    Abstract: A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.
    Type: Application
    Filed: December 2, 2016
    Publication date: January 10, 2019
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Yasutaka OZEKI, Yoshihiko TAKEMURA, Tomoyuki SUZUKI, Kei TAKAKURA, Hiroshi ITO, Keiichi MASHIO, Hiroshi AOYAGI, Takeshi KAWANA, Akira YAMASHITA, Ryutaro OKADA, Keita TSUNEMORI
  • Publication number: 20180246478
    Abstract: An isolation management system comprising: a database configured to store information which relates to a plant constructed with a plurality of components, the information comprising a relationship between the plurality of components; a receiver configured to receive designation of a targeted area information defining a target area in the plant; an analyzer configured to analyze a plurality of patterns of respective states of the plurality of components in connection with a changing state of at least one of the plurality of components in the targeted area, based on the information stored in the database; deep learning circuitry configured to extract at least one specific pattern from the plurality of patterns analyzed by the analyzer as an extraction pattern; a plan generator configured to generate a work plan based on the extraction pattern; and an output interface configured to output the work plan generated by the plan generator.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Energy Systems & Solutions Corporation
    Inventors: Kei TAKAKURA, Susumu NAITO, Hidehiko KURODA, Hiroki SHIBA
  • Patent number: 9927536
    Abstract: A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the entire image, a counting unit that calculates the number of the alpha rays based on a result of counting the photons derived from the light emission of gas excited by the alpha rays, whereby it is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 27, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidehiko Kuroda, Kunihiko Nakayama, Kei Takakura, Mikio Izumi, Naoto Kume
  • Patent number: 9910163
    Abstract: An alpha ray observation device and an alpha ray observation method are provided that can correctly evaluate a signal derived from alpha rays. The alpha ray observation device according to an embodiment includes a device housing 10, an incident window 2, a condenser 3, an optical path changer 4, and a first optical detector 5. The device housing 10 is provided with an opening. The incident window 2 is provided at the opening, and can block beta rays. Emitted light originated by alpha rays caused from the measurement object set outside of the device housing 10 enters the inside of the device housing 10 through the incident window 2 with beta rays being blocked, and is condensed by the condenser 3, and the optical path is changed by the optical path changer 4, and subsequently the light is detected by the first optical detector 5. The first optical detector 5 outputs a signal according to the amount of detected light.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: March 6, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoto Kume, Kei Takakura, Hidehiko Kuroda, Yukio Yoshimura
  • Publication number: 20170205513
    Abstract: An alpha ray observation device and an alpha ray observation method are provided that can correctly evaluate a signal derived from alpha rays. The alpha ray observation device according to an embodiment includes a device housing 10, an incident window 2, a condenser 3, an optical path changer 4, and a first optical detector 5. The device housing 10 is provided with an opening. The incident window 2 is provided at the opening, and can block beta rays. Emitted light originated by alpha rays caused from the measurement object set outside of the device housing 10 enters the inside of the device housing 10 through the incident window 2 with beta rays being blocked, and is condensed by the condenser 3, and the optical path is changed by the optical path changer 4, and subsequently the light is detected by the first optical detector 5. The first optical detector 5 outputs a signal according to the amount of detected light.
    Type: Application
    Filed: July 23, 2015
    Publication date: July 20, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoto KUME, Kei TAKAKURA, Hidehiko KURODA, Yukio YOSHIMURA
  • Patent number: 9523776
    Abstract: An embodiment of a radiation detector has: a light collecting member; a photo detector that can receive light collected by the light collecting member and count number of photons; a wavelength selector that can selectively transmit light based on the light emission of gas caused by alpha rays by selectively transmitting light of a wavelength in a specific range; a shielding device that is can switch between an opened state in which it transmits light and a closed state in which it shields light; and a counting unit that calculates an alpha dose based on a difference calculated by subtracting number of noise photons detected in the photo detector within a predetermined time period when the shielding device is in the closed state from the number of photons received by the photo detector within the predetermined time period when the shielding device is opened state.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: December 20, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidehiko Kuroda, Kunihiko Nakayama, Kei Takakura, Mikio Izumi
  • Patent number: 9279889
    Abstract: A light detecting unit of an alpha ray observation device observes an alpha ray by measuring generated light that is generated by the alpha ray produced in a region of a to-be-measured object. The light detecting unit has a travel direction changing unit that changes the direction of travel of generated light, a light detector that detects direction-changed light, which is the generated light after the direction of travel is changed, and a shielding member that shields the light detector from radiation and has a portion that is provided on the line from the to-be-measured object to the light detector. The shielding member may also surround the perimeter of the light detector and have an opening to allow generated light to reach the travel direction changing unit.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 8, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoto Kume, Hidehiko Kuroda, Kunihiko Nakayama, Kei Takakura
  • Publication number: 20150369932
    Abstract: An alpha ray observation apparatus, according to an embodiment, that observes alpha rays by detecting alpha ray caused light generated from an alpha ray source in a to-be-observed object, including: an alpha ray caused light wavelength selecting unit that can select light including wavelength of the alpha ray caused light; an alpha ray caused light detecting unit that measures an amount of alpha ray caused light; a short-side wavelength selecting unit that can select light of a short-side wavelength that is shorter than the wavelength of the alpha ray caused light; a short-side wavelength light detecting unit; a long-side wavelength selecting unit that can select light of a long-side wavelength that longer than the wavelength of the alpha ray caused light; a long-side wavelength light detecting unit; and a correction unit that calculates a corrected light amount by correcting the amount of the alpha ray caused light.
    Type: Application
    Filed: February 12, 2014
    Publication date: December 24, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Naoto KUME, Hidehiko KURODA, Kunihiko NAKAYAMA, Kei TAKAKURA
  • Publication number: 20150323678
    Abstract: An embodiment of a radiation detector has: a light collecting member; a photo detector that can receive light collected by the light collecting member and count number of photons; a wavelength selector that can selectively transmit light based on the light emission of gas caused by alpha rays by selectively transmitting light of a wavelength in a specific range; a shielding device that is can switch between an opened state in which it transmits light and a closed state in which it shields light; and a counting unit that calculates an alpha dose based on a difference calculated by subtracting number of noise photons detected in the photo detector within a predetermined time period when the shielding device is in the closed state from the number of photons received by the photo detector within the predetermined time period when the shielding device is opened state.
    Type: Application
    Filed: September 2, 2014
    Publication date: November 12, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hidehiko KURODA, Kunihiko Nakayama, Kei Takakura, Mikio Izumi
  • Publication number: 20150323681
    Abstract: A light detecting unit of an alpha ray observation device observes an alpha ray by measuring generated light that is generated by the alpha ray produced in a region of a to-be-measured object. The light detecting unit has a travel direction changing unit that changes the direction of travel of generated light, a light detector that detects direction-changed light, which is the generated light after the direction of travel is changed, and a shielding member that shields the light detector from radiation and has a portion that is provided on the line from the to-be-measured object to the light detector. The shielding member may also surround the perimeter of the light detector and have an opening to allow generated light to reach the travel direction changing unit.
    Type: Application
    Filed: January 30, 2014
    Publication date: November 12, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Naoto KUME, Hidehiko KURODA, Kunihiko NAKAYAMA, Kei TAKAKURA
  • Publication number: 20150090889
    Abstract: A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the image, a counting unit that calculates the number of the alpha ray based on a result of counting the photon derived from the light emission of gas excited by the alpha ray, and is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hidehiko KURODA, Kunihiko NAKAYAMA, Kei TAKAKURA, Mikio IZUMI, Naoto KUME