Patents by Inventor Tomohiko Jimbo

Tomohiko Jimbo 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: 20200125856
    Abstract: A surveillance performance (information expressing uncertainty of information relating to a potential risk area in a region that requires monitoring) and a tracking performance (information expressing the product of an importance level of a potential risk area and a coverage ratio (an overlap rate between potential risk areas and moving bodies)) are mutually analyzed, and plural moving bodies are allotted to either surveillance or tracking. Potential risk areas that require monitoring are determined such that the surveillance performance and the tracking performance respectively satisfy predetermined levels. The plural moving bodies are allocated to potential risk areas determined to be potential risk areas that require monitoring (simultaneous optimization). The respective moving bodies subject to simultaneous optimization start moving toward their allocated potential risk areas to monitor the potential risk areas.
    Type: Application
    Filed: June 28, 2018
    Publication date: April 23, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Tatsuya MIYANO, Kazuki SHIBATA, Tomohiko JIMBO
  • Patent number: 10475607
    Abstract: In a gas circuit breaker, arc-extinguishing gas is filled in a container. A movable portion housed in the container includes a movable arc contact. The movable portion includes a pressure accumulator that increases pressure of an arc-extinguishing gas. An opposing portion housed in the container includes an opposing arc contact, an exhaust pipe, and a shielding portion. The shielding portion includes a first shielding wall intersecting with an axial direction of the pipe and a second shielding wall having a cylindrical shape extending from the first shielding wall toward the movable portion along the axial direction of the pipe. The second shielding wall includes through-holes. Lengths of the respective through-holes along the axial direction are from 18 millimeter's to 55 millimeters inclusive. An arc-extinguishing gas whose pressure has been increased in the pressure accumulator flows into a space to extinguish arc discharge, and flows into the second shielding wall.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: November 12, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiko Jimbo, Biswas Debasish, Amane Majima
  • Patent number: 10356367
    Abstract: A blind spot coverage device that includes: a sensor section that senses external environmental information; a definition section that defines an external environmental region, in which sensing information is unobtainable, as a blind spot region; a determination section that determines whether or not the blind spot region is to be covered; and an instructing section that, in a case in which the determination section determines that the blind spot region is to be covered, instructs an actuator to move such that the blind spot region is covered. The determination section determines that the blind spot region is to be covered in a case in which determination is made that the blind spot region lacks global coverage.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 16, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Tatsuya Miyano, Kazuki Shibata, Tomohiko Jimbo
  • Publication number: 20190088430
    Abstract: In a gas circuit breaker, arc-extinguishing gas is filled in a container. A movable portion housed in the container includes a movable arc contact. The movable portion includes a pressure accumulator that increases pressure of an arc-extinguishing gas. An opposing portion housed in the container includes an opposing arc contact, an exhaust pipe, and a shielding portion. The shielding portion includes a first shielding wall intersecting with an axial direction of the pipe and a second shielding wall having a cylindrical shape extending from the first shielding wall toward the movable portion along the axial direction of the pipe. The second shielding wall includes through-holes. Lengths of the respective through-holes along the axial direction are from 18 millimeter's to 55 millimeters inclusive. An arc-extinguishing gas whose pressure has been increased in the pressure accumulator flows into a space to extinguish arc discharge, and flows into the second shielding wall.
    Type: Application
    Filed: February 12, 2018
    Publication date: March 21, 2019
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Tomohiko JIMBO, Biswas DEBASISH, Amane MAJIMA
  • Publication number: 20180152671
    Abstract: A blind spot coverage device that includes: a sensor section that senses external environmental information; a definition section that defines an external environmental region, in which sensing information is unobtainable, as a blind spot region; a determination section that determines whether or not the blind spot region is to be covered; and an instructing section that, in a case in which the determination section determines that the blind spot region is to be covered, instructs an actuator to move such that the blind spot region is covered. The determination section determines that the blind spot region is to be covered in a case in which determination is made that the blind spot region lacks global coverage.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Tatsuya MIYANO, Kazuki SHIBATA, Tomohiko JIMBO
  • Patent number: 9761395
    Abstract: In a gas circuit breaker according to an embodiment, a container is filled with an arc extinguishing gas. A movable part housed in the container and includes a movable arc contact. The movable part is provided with an accumulation part for increasing pressure of the arc extinguishing gas. A counter part is housed in the container and includes a counter arc contact, an exhaust pipe, and a shield. The shield is disposed in the exhaust pipe in a state that a flow of the arc extinguishing gas inside the exhaust pipe is allowed. A nozzle is housed in the container and provided with a space. An arc discharge occurs between the movable arc contact and the counter arc contact in the space. The arc extinguishing gas having an increased pressure in the accumulation part flows into the space to extinguish the arc discharge and flows into the exhaust pipe. The shield has a first shield wall crossing the axial direction of the exhaust pipe.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: September 12, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiko Jimbo, Biswas Debasish, Takeshi Shinkai
  • Publication number: 20170138204
    Abstract: According to one embodiment, a cooling structure includes: a flow path provided in a blade and configured to cause a cooling medium to flow therethrough; a plurality of ribs provided in the flow path and alternately deviated and provided to be substantially parallel to a flowing direction of the cooling medium, one of the ribs being a first rib, the first rib being upstream in the flowing direction, one of the ribs being a second rib, the second rib being downstream in the flowing direction and being parallel to the first rib; and a turbulent flow generator provided between the first rib and the second rib.
    Type: Application
    Filed: September 8, 2016
    Publication date: May 18, 2017
    Inventors: Tomohiko JIMBO, Biswas DEBASISH
  • Publication number: 20160379780
    Abstract: In a gas circuit breaker according to an embodiment, a container is filled with an arc extinguishing gas. A movable part housed in the container and includes a movable arc contact. The movable part is provided with an accumulation part for increasing pressure of the arc extinguishing gas. A counter part is housed in the container and includes a counter arc contact, an exhaust pipe, and a shield. The shield is disposed in the exhaust pipe in a state that a flow of the arc extinguishing gas inside the exhaust pipe is allowed. A nozzle is housed in the container and provided with a space. An arc discharge occurs between the movable arc contact and the counter arc contact in the space. The arc extinguishing gas having an increased pressure in the accumulation part flows into the space to extinguish the arc discharge and flows into the exhaust pipe. The shield has a first shield wall crossing the axial direction of the exhaust pipe.
    Type: Application
    Filed: June 27, 2016
    Publication date: December 29, 2016
    Inventors: Tomohiko JIMBO, Biswas DEBASISH, Takeshi SHINKAI
  • Patent number: 9341144
    Abstract: An apparatus controls an internal combustion engine provided with an EGR device having an EGR passage and an EGR valve that is provided in the EGR passage and can adjust an EGR amount. This apparatus includes a controller that estimates state parameters of the internal combustion engine that affect the behavior of the EGR gas within a predetermined period of time; sets constraints on the EGR amount within the predetermined period on the basis of an approximated dynamics obtained by approximating a true dynamics, which is a transition of the EGR amount within the predetermined period, so that approximated values do not exceed the true dynamics; determines a target value of the EGR amount according to the estimated state parameters within a range of the EGR amount on which the constraints that have been set; and controls the EGR valve so that the EGR amount becomes the determined target value.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: May 17, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoru Tanaka, Kota Sata, Masaaki Ishibuchi, Tomohiko Jimbo, Ryoichi Hibino
  • Publication number: 20150083198
    Abstract: According to an embodiment, a photovoltaic power generation system includes a photovoltaic array group and a windbreak. The photovoltaic array group includes a plurality of photovoltaic arrays, each of the photovoltaic arrays including a plurality of solar panels and a support structure which supports the solar panels. The windbreak is arranged at least partly around the photovoltaic array group and includes a plurality of windbreaker elements, each of the windbreaker having a horizontal section of an airfoil shape or a plurality of windbreaker elements each formed by combining a plurality of flat plates.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Tomohiko JIMBO, Biswas DEBASISH, Kei MATSUOKA, Yoshiaki HASEGAWA
  • Publication number: 20150083199
    Abstract: According to an embodiment, a photovoltaic power generation system includes a photovoltaic array group and a windbreak. The photovoltaic array group includes a plurality of photovoltaic arrays, each of the photovoltaic arrays including a plurality of solar panels and a support structure which supports the solar panels. The windbreak is arranged behind the photovoltaic array group and includes a curved surface configured to guide at least some of a wind, which blows from a back side of the photovoltaic array group toward the photovoltaic array group, to an upper side of the photovoltaic array group.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Inventors: Tomohiko JIMBO, Biswas DEBASISH, Kei MATSUOKA, Yoshiaki HASEGAWA
  • Publication number: 20150061428
    Abstract: An axial gap-type power generator in an embodiment includes a rotor provided with a magnet and a stator provided with a coil, the rotor and the stator being arranged via a gap in an axial direction of a rotation shaft. Further, a blade is installed at the rotor and the blade generates a cooling wind by rotation of the rotor. Here, the blade is installed at the rotor so that the cooling wind flows through the gap between the rotor and the stator from an inside to an outside in a radial direction of the rotation shaft.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 5, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomohiko JIMBO, Kei Matsuoka, Yasuo Kabata, Asako Inomata, Yoshihiro Taniyama
  • Publication number: 20140174412
    Abstract: An apparatus controls an internal combustion engine provided with an EGR device having an EGR passage and an EGR valve that is provided in the EGR passage and can adjust an EGR amount. This apparatus includes a controller that estimates state parameters of the internal combustion engine that affect the behavior of the EGR gas within a predetermined period of time; sets constraints on the EGR amount within the predetermined period on the basis of an approximated dynamics obtained by approximating a true dynamics, which is a transition of the EGR amount within the predetermined period, so that approximated values do not exceed the true dynamics; determines a target value of the EGR amount according to the estimated state parameters within a range of the EGR amount on which the constraints that have been set; and controls the EGR valve so that the EGR amount becomes the determined target value.
    Type: Application
    Filed: August 3, 2012
    Publication date: June 26, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoru Tanaka, Kota Sata, Masaaki Ishibuchi, Tomohiko Jimbo, Ryoichi Hibino
  • Patent number: 8721177
    Abstract: According to an aspect of the present invention, there is provided an X-ray CT scanner including: a gantry; a revolving body provided inside the gantry; an X-ray tube assembly provided in the revolving body; a heat radiator provided inside the revolving body so as to be connected to the X-ray tube assembly; a heat storage material provided in the heat radiator and capable of accumulating a heat generated by the X-ray tube assembly; and an X-ray detector provided inside the revolving body so as to oppose the X-ray tube assembly.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: May 13, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiko Jimbo, Tomonao Takamatsu, Hideo Kitamura, Rika Hosaka, Hitoshi Hattori, Harunobu Fukushima, Hideo Iwasaki
  • Patent number: 7889837
    Abstract: A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: February 15, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tomonao Takamatsu, Hitoshi Hattori, Hideo Iwasaki, Harunobu Fukushima, Rika Hosaka, Tomohiko Jimbo, Tetsuya Sadotomo, Tomokazu Harada, Satoshi Ota, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
  • Patent number: 7806590
    Abstract: According to the invention, an X-ray CT apparatus includes: an annular rotator including: an X-ray tube; an X-ray detector disposed oppositely to the X-ray tube; a radiator disposed in the vicinity of the X-ray tube and dissipating heat from the X-ray tube; an air outlet provided in the vicinity of the radiator; and an air inlet provided at a position oppositely to the air outlet, a gantry cover covering peripheral of the annular rotator and having an upper air vent and a plurality of lower air vents; a plurality of fans discharging to the outside air exist in a gap between the gantry cover and the annular rotator from the air outlet; and a baffle plate provided in the gap in the vicinity of the lower air vents and controlling an air flow passing through internal space of the annular rotator and an airflow passing through the gap.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: October 5, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomohiko Jimbo, Hideo Iwasaki, Tomonao Takamatsu
  • Publication number: 20100177863
    Abstract: According to an aspect of the present invention, there is provided an X-ray CT scanner including: a gantry; a revolving body provided inside the gantry; an X-ray tube assembly provided in the revolving body; a heat radiator provided inside the revolving body so as to be connected to the X-ray tube assembly; a heat storage material provided in the heat radiator and capable of accumulating a heat generated by the X-ray tube assembly; and an X-ray detector provided inside the revolving body so as to oppose the X-ray tube assembly.
    Type: Application
    Filed: January 14, 2010
    Publication date: July 15, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomohiko Jimbo, Tomonao Takamatsu, Hideo Kitamura, Rika Hosaka, Hitoshi Hattori, Harunobu Fukushima, Hideo Iwasaki
  • Publication number: 20090279660
    Abstract: A rotor is rotatably supported in a gantry housing having a substantially sealed structure. An X-ray tube is provided in the rotor. A cooler is provided in the rotor and cools a refrigerant within the X-ray tube. An X-ray detector is provided in the rotor. A reconstruction unit reconstructs an image on the basis of an output of the X-ray detector. A radiator is fixed inside the gantry housing at a position opposite to an exhaust opening of the cooler when the rotor is stationary.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 12, 2009
    Inventors: Tomonao Takamatsu, Hitoshi Hattori, Hideo Iwasaki, Harunobu Fukushima, Rika Hosaka, Tomohiko Jimbo, Tetsuya Sadotomo, Tomokazu Harada, Satoshi Ota, Makoto Nakano, Yasutaka Shindo, Katsumi Gotanda
  • Publication number: 20090232281
    Abstract: According to the invention, an X-ray CT apparatus includes: an annular rotator including: an X-ray tube; an X-ray detector disposed oppositely to the X-ray tube; a radiator disposed in the vicinity of the X-ray tube and dissipating heat from the X-ray tube; an air outlet provided in the vicinity of the radiator; and an air inlet provided at a position oppositely to the air outlet, a gantry cover covering peripheral of the annular rotator and having an upper air vent and a plurality of lower air vents; a plurality of fans discharging to the outside air exist in a gap between the gantry cover and the annular rotator from the air outlet; and a baffle plate provided in the gap in the vicinity of the lower air vents and controlling an air flow passing through internal space of the annular rotator and an airflow passing through the gap.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 17, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomohiko Jimbo, Hideo Iwasaki, Tomonao Takamatsu
  • Patent number: 7152017
    Abstract: The numerical analysis system of the invention analyzes the dynamical state of the compressible fluid employing Hybrid Grid Adaptation Method by Finite Volume Method. The initial grid data are created by way of free combination of tetrahedral cells, hexahedral cells and pentahedral cells. The divide-delete index is calculated according to the density of the fluid in each cell. A triangular face of the cell is divided into triangular faces and the quadrilateral face is divided into quadrilateral faces when the cell is divided. The cell is divided only when three conditions are satisfied. The first condition is that the volume of the cell is greater than the minimum volume. The second is that the dividing level of the cell is not the maximum level. The third is that the divide-delete index is greater than the dividing threshold.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: December 19, 2006
    Assignee: Keio University
    Inventors: Takahiko Tanahashi, Tomohiko Jimbo