Patents by Inventor Seiji Yoshida

Seiji Yoshida 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: 20240128362
    Abstract: Provided is a semiconductor device comprising: a plurality of trench portions include a gate trench portion and a dummy trench portion; a first lower end region of a second conductivity type that is provided to be in contact with lower ends of two or more trench portions which include the gate trench portion; a well region of a second conductivity type that is arranged in a different location from the first lower end region in a top view, and a second lower end region of a second conductivity type that is provided between the first lower end region and the well region in a top view being separated from the first lower end region and the well region, and provided to be in contact with lower ends of one or more trench portions including the gate trench portion.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 18, 2024
    Inventors: Yosuke SAKURAI, Seiji NOGUCHI, Kosuke YOSHIDA, Ryutaro HAMASAKI, Takuya YAMADA
  • Publication number: 20240120413
    Abstract: Provided is a semiconductor device comprising: a plurality of trench portions; a first lower end region of a second conductivity type that is provided to be in contact with lower ends of two or more trench portions which include the gate trench portion; a well region of the second conductivity type that is arranged in a different location from the first lower end region in a top view, and a second lower end region of the second conductivity type that is provided between the first lower end region and the well region in a top view being separated from the first lower end region and the well region, and provided to be in contact with lower ends of one or more trench portions including the gate trench portion.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 11, 2024
    Inventors: Yosuke SAKURAI, Seiji NOGUCHI, Kosuke YOSHIDA, Ryutaro HAMASAKI, Takuya YAMADA
  • Patent number: 11946005
    Abstract: A gasification gas treatment facility for treating a gasification gas obtained by gasification of a fuel includes: a first heat exchanger for performing heat exchange between a purified gas obtained by removing at least ammonia and hydrogen chloride from the gasification gas and steam at a saturation temperature; a second heat exchanger for performing heat exchange between the gasification gas and at least condensed water produced by the heat exchange in the first heat exchanger to produce the steam at the saturation temperature; and a circulation system for circulating a circulating fluid including at least one of the steam or the condensed water between the first heat exchanger and the second heat exchanger. The circulation system is configured to supply the circulating fluid including at least the condensed water at the saturation temperature produced in the first heat exchanger to the second heat exchanger.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 2, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
  • Publication number: 20240083783
    Abstract: An ion removal apparatus according to this disclosure performs a desalination treatment on a liquid and includes: a first electrode guide having an inlet allowing the liquid to flow in, a first electrode holder holding a first electrode that adsorbs an ion in the liquid, and an inflow passage serving as a flow passage connecting the inlet and the first electrode holder to one another; and a second electrode guide having an outlet allowing the liquid to flow out, a second electrode holder allowing the liquid passing through the first electrode holder to flow in and holding a second electrode that adsorbs the ion in the liquid, and an outflow passage serving as a flow passage connecting the outlet and the second electrode holder to one another.
    Type: Application
    Filed: April 26, 2021
    Publication date: March 14, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshihiro NAKAYAMA, Tadashi SAITO, Kota KURIHARA, Seiji NODA, Ryuki YOSHIDA, Masaru TAKADA
  • Publication number: 20240081718
    Abstract: A biological information measurement device includes a sensor unit that detects predetermined biological information related to an organ of a living body, an A/D conversion unit that converts a measurement signal output from the sensor unit into a digital signal, a storage unit that stores information including a digital signal related to the measurement signal output from the A/D conversion unit, an analysis processing unit that determines presence or absence of a suspicion of an abnormality in the organ by analyzing the digital signal, and a measurement control unit that changes a sampling frequency related to A/D conversion of the measurement signal under a predetermined condition when the analysis processing unit has determined that a suspicion of an abnormality is present in the organ.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Kenji FUJII, Yasuhiro KAWABATA, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Daizo OKA, Takuya YOSHIDA, Seiji FUKUNAGA, Tatsuaki OKA
  • Publication number: 20230384460
    Abstract: A satellite signal reception device includes: a signal selection unit configured to select a predetermined number of satellite signals on a basis of reception quality of satellite signals received by a GNSS antenna; and a measurement unit configured to perform positioning or time synchronization using the predetermined number of satellite signals selected by the signal selection unit.
    Type: Application
    Filed: September 28, 2021
    Publication date: November 30, 2023
    Inventor: Seiji YOSHIDA
  • Patent number: 11802975
    Abstract: A navigation satellite system reception apparatus includes a navigation satellite signal reception unit that calculates a first reception position, and a control unit that calculates an initial value of the first reception position and an orbit position of each of four or more navigation satellites, calculates, based on the calculated first reception position, the calculated orbit position, and time information from the first navigation satellite signals, arrival time of each of the first navigation satellite signals, extracts, based on the calculated arrival time, a second navigation satellite signal, calculates, based on the extracted second navigation satellite signal, a second reception position, recursively performs, by using the calculated second reception position, a calculation process of the arrival time and an extraction process of the second navigation satellite signal, and performs, based on a second navigation satellite signal extracted at end of recursive processing, the positioning process or t
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: October 31, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Seiji Yoshida, Masakatsu Fujiwara
  • Publication number: 20230251388
    Abstract: A navigation satellite system reception apparatus including a satellite orbit information acquisition unit that acquires orbit information of a navigation satellite, an installation position information acquisition unit that acquires position information of an installation position, an azimuth meter that acquires azimuth information of an azimuth in which a wall surface of a nearby obstruction extends, and an azimuth mask generation unit that calculates a mask region for selecting a navigation satellite to be a target of processing based on the azimuth information. A positioning and time synchronization processing unit calculates an azimuth and an angle of elevation of each navigation satellite based on the orbit information and the position information, selects a navigation satellite to be a target of processing, and performs at least one of the positioning processing or the time synchronization processing based on a received navigation satellite signal.
    Type: Application
    Filed: March 7, 2023
    Publication date: August 10, 2023
    Inventors: Seiji Yoshida, Masakatsu Fujiwara
  • Publication number: 20230168387
    Abstract: A measurement device includes: an azimuth and inclination measurement unit that measures an azimuth and an inclination of an object including a GNSS antenna; an azimuth mask generation unit that generates an azimuth mask indicating a region blocked when viewed from the GNSS antenna in a region of an open space of a sky in accordance with the azimuth and the inclination of the object; and a positioning control unit that selects line-of sight satellite signals using the azimuth mask and causes an absolute position measurement unit to execute positioning or time synchronization using the line-of sight satellite signal.
    Type: Application
    Filed: April 28, 2020
    Publication date: June 1, 2023
    Inventor: Seiji YOSHIDA
  • Publication number: 20230136186
    Abstract: A position measuring apparatus for positioning a mobile object includes a positioning control unit that determines a candidate area type of a position of the mobile object in accordance with an attribute of the mobile object and geospatial information, divides a candidate area corresponding to the candidate area type into a plurality of grids, specifies a grid in which the mobile object is estimated to be located from among the plurality of grids, and outputs a positioning solution of a carrier-phase based positioning calculation by an absolute position positioning unit, the positioning solution being obtained by using the grid specified.
    Type: Application
    Filed: April 28, 2020
    Publication date: May 4, 2023
    Inventor: Seiji YOSHIDA
  • Publication number: 20220342086
    Abstract: A position measurement system including: an absolute positioning measuring unit configured to measure an absolute position of a mobile object, attach a first time stamp to an absolute position measurement result, and output the absolute position measurement result with the first time stamp; a relative positioning measuring unit configured to measure a relative displacement of the mobile object, attach a second time stamp to a relative displacement measurement result, and output the relative displacement measurement result with the second time stamp; and a positioning computation unit configured to execute positioning computation for calculating the absolute position of the mobile object based on the absolute position measurement result with the first time stamp and the relative displacement measurement result with the second time stamp, attach a third time stamp to a positioning computation result, and output the positioning computation result with the third time stamp.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 27, 2022
    Inventor: Seiji YOSHIDA
  • Publication number: 20220338015
    Abstract: An authentication system that performs authentication of first location information collected from an apparatus includes an acquisition section configured to acquire one or more pieces of authentication information to be used for the authentication, and an authentication section that determines, using the one or more pieces of authentication information acquired by the acquisition section, whether the first location information is counterfeited, by an authentication method corresponding to each of the one or more pieces of authentication information to authenticate the first location information.
    Type: Application
    Filed: September 12, 2019
    Publication date: October 20, 2022
    Inventor: Seiji YOSHIDA
  • Publication number: 20220334265
    Abstract: A positioning system includes equipment that receives a signal from a GNSS satellite, and a server apparatus that is connected to the equipment via a communication network. The equipment includes a memory and a processor configured to transmit information indicated by the signal to the server apparatus, and perform positioning of the equipment by using the information indicated by the signal. The server apparatus includes a memory and a processor configured to perform positioning of the equipment by using the information indicated by the signal received from the equipment.
    Type: Application
    Filed: September 24, 2019
    Publication date: October 20, 2022
    Inventor: Seiji YOSHIDA
  • Publication number: 20220326392
    Abstract: A signal receiving equipment includes a reception unit configured to receive signals from a GNSS satellite, a first selection unit configured to select a plurality of signals from among the signals received by the reception unit using a preset first parameter, a first positioning unit configured to perform at least positioning of a location by code-based positioning using the plurality of signals selected by the first selection unit, a second selection unit configured to select a plurality of signals from among the signals received by the reception unit using a preset second parameter, and a second positioning unit configured to perform positioning of a location and time synchronization by carrier-phase-based positioning using the plurality of signals selected by the second selection unit, with coordinates indicated by the location positioned by the first positioning unit as initial coordinates.
    Type: Application
    Filed: August 26, 2020
    Publication date: October 13, 2022
    Inventor: Seiji YOSHIDA
  • Publication number: 20220276395
    Abstract: A position measurement apparatus for measuring an absolute position of a mobile object, the position measurement apparatus includes one or more computers each including a memory and a processor configured to measure the absolute position of the mobile object based on signals transmitted from navigation satellites; measure a displacement of the mobile object from a certain position; and switching between measuring the absolute position of the mobile object and measuring the displacement of the mobile object from the certain position in accordance with a plan which is created in advance or created during movement of the mobile object.
    Type: Application
    Filed: September 12, 2019
    Publication date: September 1, 2022
    Inventor: Seiji YOSHIDA
  • Publication number: 20210341150
    Abstract: An annular gas turbine combustor for use in an aircraft includes a plurality of resonators having respective resonance chambers and arranged in a fuel injector arrangement space so as to be lined up with fuel injectors in a radial direction of the fuel injector. A bulkhead configured to separate a combustion chamber and the fuel injector arrangement space from each other includes a plurality of openings each of which is arranged between each resonance chamber and the combustion chamber. The resonance chambers communicate with the combustion chamber through the openings. At least part of each of the resonance chambers is arranged at a radially inner side of a largest outer diameter portion of an outer liner when viewed in an axial direction of the fuel injector.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 4, 2021
    Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Ryusuke MATSUYAMA, Seiji YOSHIDA, Hitoshi FUJIWARA
  • Patent number: 11150353
    Abstract: A time synchronization method that is capable of selecting whether synchronization, by a timepiece unit that generates a time signal synchronized with a standard time and outputs it to an exterior, with the time is performed by time information obtained by receiving a radio wave including information relating to the time, or is performed by means of a holdover performed using a clock signal from an internal or external clock source. A schedule having a first time period in which the above-mentioned time information is used, and a second time period by means of the holdover is determined according to temporal reception characteristics of the radio wave at a reception location of the radio wave, and according to the schedule, supplying the timepiece unit with the time information or supplying the timepiece unit with the clock signal from the internal or external clock source.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 19, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keisuke Nishi, Youichi Fukada, Akihiro Morita, Seiji Yoshida, Takashi Hirose
  • Publication number: 20210286087
    Abstract: A navigation satellite system reception apparatus including a satellite orbit information acquisition unit that acquires orbit information of a navigation satellite, an installation position information acquisition unit that acquires position information of an installation position, an azimuth meter that acquires azimuth information of an azimuth in which a wall surface of a nearby obstruction extends, and an azimuth mask generation unit that calculates a mask region for selecting a navigation satellite to be a target of processing based on the azimuth information. A positioning and time synchronization processing unit calculates an azimuth and an angle of elevation of each navigation satellite based on the orbit information and the position information, selects a navigation satellite to be a target of processing, and performs at least one of the positioning processing or the time synchronization processing based on a received navigation satellite signal.
    Type: Application
    Filed: July 11, 2019
    Publication date: September 16, 2021
    Inventors: Seiji Yoshida, Masakatsu Fujiwara
  • Publication number: 20210239846
    Abstract: A navigation satellite system reception apparatus includes a navigation satellite signal reception unit that calculates a first reception position, and a control unit that calculates an initial value of the first reception position and an orbit position of each of four or more navigation satellites, calculates, based on the calculated first reception position, the calculated orbit position, and time information from the first navigation satellite signals, arrival time of each of the first navigation satellite signals, extracts, based on the calculated arrival time, a second navigation satellite signal, calculates, based on the extracted second navigation satellite signal, a second reception position, recursively performs, by using the calculated second reception position, a calculation process of the arrival time and an extraction process of the second navigation satellite signal, and performs, based on a second navigation satellite signal extracted at end of recursive processing, the positioning process or t
    Type: Application
    Filed: July 11, 2019
    Publication date: August 5, 2021
    Inventors: Seiji Yoshida, Masakatsu Fujiwara
  • Patent number: 10520605
    Abstract: A satellite signal reception characteristic estimation apparatus includes a satellite orbital information collection unit that collects and outputs orbital information for a satellite; a peripheral environment spatial information collection unit that collects spatial information for a peripheral environment of an installation position of a satellite antenna; a positional information collection unit that collects and outputs positional information for the installation position of the satellite antenna; and a simulation server unit that estimates reception characteristics of satellite signals at the installation position of the satellite antenna by performing a simulation based on the orbital information, the spatial information, and the positional information outputted from the satellite orbital information collection unit, the peripheral environment spatial information collection unit, and the positional information collection unit.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: December 31, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Keisuke Nishi, Youichi Fukada, Akihiro Morita, Seiji Yoshida, Takashi Hirose