Patents by Inventor Koji Ishibashi

Koji Ishibashi 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: 11316527
    Abstract: An analog to digital converter is provided and includes column processing units that convert analog signal to digital signal. One or more counters count time of analog to digital conversion and one or more comparators compares the voltage of reference signal and analog signal from neuromorphic device. One or more generators generates the reference signal for the comparator.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 26, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koji Ishibashi
  • Publication number: 20220057186
    Abstract: A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 24, 2022
    Inventors: Koji Ishibashi, Shunsuke Mizumi, Kenji Yashirodai, Jie Huang
  • Patent number: 11215437
    Abstract: A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: January 4, 2022
    Assignee: Mitsubishi Power, Ltd.
    Inventors: Koji Ishibashi, Shunsuke Mizumi, Kenji Yashirodai, Jie Huang
  • Publication number: 20210396702
    Abstract: A gas sensor control device having a DA conversion circuit configured to supply a pump current having a magnitude corresponding to an inputted digital signal to the pump cell, a reference electric potential generating circuit configured to keep an electric potential of the first pump electrode at a reference electric potential, a diagnostic resistance connected to the pump cell parallel to the pump cell, and an output part configured to output a signal relating to voltage applied to the diagnostic resistance when inputting an arbitrary digital signal to the DA conversion circuit in a situation in which oxygen ion conductivity does not occur in the pump cell to an external device.
    Type: Application
    Filed: March 9, 2020
    Publication date: December 23, 2021
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Yuzo HIGUCHI, Koji ISHIBASHI, Junichiro MITSUNO, Satoru ABE, Yuji Ol
  • Patent number: 11203941
    Abstract: A stationary blade includes a main unit having a hollow blade structure formed from a metal plate by plastic forming. The stationary blade includes a blade tail section. In a blade tail upper portion, the metal plate has a concave-shaped recess and a rib formed on an inner surface side thereof, and the metal plate further has slits formed by slitting on a blade pressure side thereof, so that droplets affixed on a blade surface can be guided into an inside of the hollow blade when the blade tail section is joined to the hollow blade main unit. The recess in the metal plate is covered so as to be lidded by a suction-side protrusion of a suction-side metal plate from a blade suction side to thereby form a hollow blade tail section. The metal plates are welded together to the main unit.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: December 21, 2021
    Assignee: Mitsubishi Power, Ltd.
    Inventors: Susumu Nakano, Koji Ishibashi, Shunsuke Mizumi, Masaki Matsuda, Takeshi Kudo
  • Patent number: 11149589
    Abstract: In assembling a turbine including: a casing consisting of an upper half part and a lower half part fastened together by bolts; a stationary body accommodated in the casing and supported by the lower half part; and a rotary body supported by a plurality of bearings so as to be situated on the inner side of the stationary body, there are executed: a procedure of reading a finite element model of the three-dimensional configuration of the turbine; a reading procedure of reading actual measurement information on the three-dimensional configuration of the upper half part and the lower half part of the casing in the open state; a model correction procedure of reflecting actual measurement information of an evaluated portion that is a specific part of the casing in the finite element model and generating a correction model obtained through correction of the finite element model; a deformation amount estimation procedure of estimating the movement amount of the evaluated portion generated when the upper half part and
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: October 19, 2021
    Assignee: Mitsubishi Power, Ltd.
    Inventors: Kenji Yashirodai, Shunsuke Mizumi, Koji Ishibashi, Jie Huang, Juichi Kodera
  • Patent number: 11102435
    Abstract: An imaging device includes a pixel that outputs a signal based on charges generated by photoelectric conversion, a comparator that compares a pixel signal output from the pixel with a reference signal and outputs a signal in accordance with a comparison result, a buffer circuit that buffers a signal output from the comparator, a switch provided at least one of a part between the buffer circuit and a first node supplied with a first power source voltage and a part between the buffer circuit and a second node supplied with a second power source voltage, and a control circuit that controls the switch to a non-conductive state in a period in which the comparator performs a comparison operation to compare the pixel signal with the reference signal.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: August 24, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koji Ishibashi
  • Patent number: 10911780
    Abstract: In a process of coding multi-viewpoint images, the process is performed at a high speed while the amount of data is suppressed. A distance estimating unit that estimates a distance from a camera array including a plurality of camera units up to a subject, a determination unit that determines the number of first camera units independently coding image data among the plurality of camera units and an arrangement of the first camera units in the camera array based on the distance estimated by the distance estimating unit, and a control unit that operates each of the camera units as the first camera unit or as a second camera unit coding image data of the own camera unit by referring to image data of the first camera unit based on the number and the arrangement of the first camera units determined by the determination unit are included.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: February 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Koji Ishibashi
  • Publication number: 20200408098
    Abstract: A stationary blade includes a main unit having a hollow blade structure formed from a metal plate by plastic forming. The stationary blade includes a blade tail section. In a blade tail upper portion, the metal plate has a concave-shaped recess and a rib formed on an inner surface side thereof, and the metal plate further has slits formed by slitting on a blade pressure side thereof, so that droplets affixed on a blade surface can be guided into an inside of the hollow blade when the blade tail section is joined to the hollow blade main unit. The recess in the metal plate is covered so as to be lidded by a suction-side protrusion of a suction-side metal plate from a blade suction side to thereby form a hollow blade tail section. The metal plates are welded together to the main unit.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Susumu NAKANO, Koji ISHIBASHI, Shunsuke MIZUMI, Masaki MATSUDA, Takeshi KUDO
  • Publication number: 20200326172
    Abstract: A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed. In a turbine including casings, recesses and protrusions on flange surfaces of the casings are measured at measurement intervals M set on the basis of the entire length L of flange portions in an axial direction, the number of bolts N joining the flange portions, and intervals between the bolts in the axial direction of the flange portions.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 15, 2020
    Inventors: Koji ISHIBASHI, Shunsuke MIZUMI, Kenji YASHIRODAI, Jie HUANG
  • Patent number: 10794196
    Abstract: A stationary blade includes a main unit having a hollow blade structure formed from a metal plate by plastic forming. The stationary blade includes a blade tail section. In a blade tail upper portion, the metal plate has a concave-shaped recess and a rib formed on an inner surface side thereof and the metal plate further has slits formed by slitting on a blade pressure side thereof, so that droplets affixed on a blade surface can be guided into an inside of the hollow blade when the blade tail section is joined to the hollow blade main unit. The recess in the metal plate is covered so as to be lidded by a suction-side protrusion of a suction-side metal plate from a blade suction side to thereby form a hollow blade tail section. The metal plates are welded together to the main unit.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: October 6, 2020
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Susumu Nakano, Koji Ishibashi, Shunsuke Mizumi, Masaki Matsuda, Takeshi Kudo
  • Patent number: 10746689
    Abstract: A sensor element drive circuit is a circuit including a plurality of semiconductor elements formed on a semiconductor substrate for realizing a current control function and a switching function. The current control function is a function of controlling the current flowing between electrodes such that the potential difference between electrodes becomes constant. The switching function is a function for switching between a connected state in which the electrodes are electrically connected to a sensor control apparatus and a cut-off state in which electrical continuity therebetween is broken. When one of an Ip+ terminal, a COM terminal, and a Vs+ terminal is determined to have an anomalous potential, the sensor control apparatus causes the sensor element drive circuit to perform switching from the connected state to the cut-off state, and connects the semiconductor substrate to a negative voltage lower than a ground potential applied to the sensor element drive circuit.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: August 18, 2020
    Assignee: NGK Spark Plug Co., LTD.
    Inventors: Yuzo Higuchi, Satoru Abe, Koji Ishibashi
  • Publication number: 20200204186
    Abstract: An analog to digital converter is provided and includes column processing units that convert analog signal to digital signal. One or more counters count time of analog to digital conversion and one or more comparators compares the voltage of reference signal and analog signal from neuromorphic device. One or more generators generates the reference signal for the comparator.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Inventor: Koji Ishibashi
  • Patent number: 10635086
    Abstract: The invention is directed to maintaining the accuracy in the positional adjustment of a stationary part while shortening a turbine assembly period through the omission of the temporary assembly of a casing.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 28, 2020
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Kenji Yashirodai, Juichi Kodera, Shunsuke Mizumi, Koji Ishibashi
  • Patent number: 10502098
    Abstract: A turbine assembly method includes a positional information measurement process in which positional information on a plurality of specific portions set on an outer surface of a casing is measured in a state before releasing of bolt fastening of the casing at a time of disassembly of the turbine and in a predetermined disassembly state after the releasing of the bolt fastening, and an alignment process in which positional adjustment of a stationary component with respect to the casing is made based on the measurement results of the positional information on the specific portions in the positional information measurement process.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 10, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Shunsuke Mizumi, Juichi Kodera, Koji Ishibashi
  • Publication number: 20190107007
    Abstract: In assembling a turbine including: a casing consisting of an upper half part and a lower half part fastened together by bolts; a stationary body accommodated in the casing and supported by the lower half part; and a rotary body supported by a plurality of bearings so as to be situated on the inner side of the stationary body, there are executed: a procedure of reading a finite element model of the three-dimensional configuration of the turbine; a reading procedure of reading actual measurement information on the three-dimensional configuration of the upper half part and the lower half part of the casing in the open state; a model correction procedure of reflecting actual measurement information of an evaluated portion that is a specific part of the casing in the finite element model and generating a correction model obtained through correction of the finite element model; a deformation amount estimation procedure of estimating the movement amount of the evaluated portion generated when the upper half part and
    Type: Application
    Filed: October 3, 2018
    Publication date: April 11, 2019
    Inventors: Kenji YASHIRODAI, Shunsuke MIZUMI, Koji ISHIBASHI, Jie HUANG, Juichi KODERA
  • Publication number: 20190078448
    Abstract: A stationary blade includes a main unit having a hollow blade structure formed from a metal plate by plastic forming. The stationary blade includes a blade tail section. In a blade tail upper portion, the metal plate has a concave-shaped recess and a rib formed on an inner surface side thereof and the metal plate further has slits formed by slitting on a blade pressure side thereof, so that droplets affixed on a blade surface can be guided into an inside of the hollow blade when the blade tail section is joined to the hollow blade main unit. The recess in the metal plate is covered so as to be lidded by a suction-side protrusion of a suction-side metal plate from a blade suction side to thereby form a hollow blade tail section. The metal plates are welded together to the main unit.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 14, 2019
    Inventors: Susumu NAKANO, Koji ISHIBASHI, Shunsuke MIZUMI, Masaki MATSUDA, Takeshi KUDO
  • Publication number: 20190007638
    Abstract: An imaging device includes a pixel that outputs a signal based on charges generated by photoelectric conversion, a comparator that compares a pixel signal output from the pixel with a reference signal and outputs a signal in accordance with a comparison result, a buffer circuit that buffers a signal output from the comparator, a switch provided at least one of a part between the buffer circuit and a first node supplied with a first power source voltage and a part between the buffer circuit and a second node supplied with a second power source voltage, and a control circuit that controls the switch to a non-conductive state in a period in which the comparator performs a comparison operation to compare the pixel signal with the reference signal.
    Type: Application
    Filed: June 22, 2018
    Publication date: January 3, 2019
    Inventor: Koji Ishibashi
  • Patent number: 10145248
    Abstract: A stationary blade includes a main unit having a hollow blade structure formed from a metal plate by plastic forming. The stationary blade includes a blade tail section. In a blade tail upper portion, the metal plate has a concave-shaped recess and a rib formed on an inner surface side thereof and the metal plate further has slits formed by slitting on a blade pressure side thereof, so that droplets affixed on a blade surface can be guided into an inside of the hollow blade when the blade tail section is joined to the hollow blade main unit. The recess in the metal plate is covered so as to be lidded by a suction-side protrusion of a suction-side metal plate from a blade suction side to thereby form a hollow blade tail section. The metal plates are welded together to the main unit.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: December 4, 2018
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Susumu Nakano, Koji Ishibashi, Shunsuke Mizumi, Masaki Matsuda, Takeshi Kudo
  • Patent number: 10132178
    Abstract: To provide a steam turbine stationary blade adapted to remove a liquid film effectively. A steam turbine stationary blade with a hollow region therein, the steam turbine stationary blade includes a plurality of slots and arranged in lines in a direction of a chord length, the plurality of slots communicate with a working fluid flow passageway and with the hollow region, and extends in a direction of a blade length, and at least one connecting portion disposed so that for each of the most downstream slot of the plurality of slots and, a surface directed toward the working fluid flow passageway is positioned closer to the hollow region than to a surface of the steam turbine stationary blade, and so that the connecting portion connects both sidewall surfaces of each of the most downstream slots, in the direction of the chord length.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: November 20, 2018
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Koji Ishibashi, Susumu Nakano, Takeshi Kudo