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).
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Publication number: 20240128362Abstract: 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: ApplicationFiled: December 18, 2023Publication date: April 18, 2024Inventors: Yosuke SAKURAI, Seiji NOGUCHI, Kosuke YOSHIDA, Ryutaro HAMASAKI, Takuya YAMADA
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Publication number: 20240120413Abstract: 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: ApplicationFiled: December 18, 2023Publication date: April 11, 2024Inventors: Yosuke SAKURAI, Seiji NOGUCHI, Kosuke YOSHIDA, Ryutaro HAMASAKI, Takuya YAMADA
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Patent number: 11946005Abstract: 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: GrantFiled: July 18, 2019Date of Patent: April 2, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kaori Yoshida, Rikio Kan, Seiji Kakesako
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Publication number: 20240083783Abstract: 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: ApplicationFiled: April 26, 2021Publication date: March 14, 2024Applicant: Mitsubishi Electric CorporationInventors: Yoshihiro NAKAYAMA, Tadashi SAITO, Kota KURIHARA, Seiji NODA, Ryuki YOSHIDA, Masaru TAKADA
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Publication number: 20240081718Abstract: 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: ApplicationFiled: November 16, 2023Publication date: March 14, 2024Inventors: Kenji FUJII, Yasuhiro KAWABATA, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Daizo OKA, Takuya YOSHIDA, Seiji FUKUNAGA, Tatsuaki OKA
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Publication number: 20230384460Abstract: 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: ApplicationFiled: September 28, 2021Publication date: November 30, 2023Inventor: Seiji YOSHIDA
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Patent number: 11802975Abstract: 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 tType: GrantFiled: July 11, 2019Date of Patent: October 31, 2023Assignee: Nippon Telegraph and Telephone CorporationInventors: Seiji Yoshida, Masakatsu Fujiwara
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Publication number: 20230251388Abstract: 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: ApplicationFiled: March 7, 2023Publication date: August 10, 2023Inventors: Seiji Yoshida, Masakatsu Fujiwara
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Publication number: 20230168387Abstract: 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: ApplicationFiled: April 28, 2020Publication date: June 1, 2023Inventor: Seiji YOSHIDA
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Publication number: 20230136186Abstract: 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: ApplicationFiled: April 28, 2020Publication date: May 4, 2023Inventor: Seiji YOSHIDA
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Publication number: 20220342086Abstract: 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: ApplicationFiled: September 19, 2019Publication date: October 27, 2022Inventor: Seiji YOSHIDA
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Publication number: 20220338015Abstract: 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: ApplicationFiled: September 12, 2019Publication date: October 20, 2022Inventor: Seiji YOSHIDA
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Publication number: 20220334265Abstract: 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: ApplicationFiled: September 24, 2019Publication date: October 20, 2022Inventor: Seiji YOSHIDA
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Publication number: 20220326392Abstract: 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: ApplicationFiled: August 26, 2020Publication date: October 13, 2022Inventor: Seiji YOSHIDA
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Publication number: 20220276395Abstract: 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: ApplicationFiled: September 12, 2019Publication date: September 1, 2022Inventor: Seiji YOSHIDA
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Publication number: 20210341150Abstract: 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: ApplicationFiled: October 2, 2019Publication date: November 4, 2021Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, JAPAN AEROSPACE EXPLORATION AGENCYInventors: Ryusuke MATSUYAMA, Seiji YOSHIDA, Hitoshi FUJIWARA
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Patent number: 11150353Abstract: 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: GrantFiled: February 12, 2016Date of Patent: October 19, 2021Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Keisuke Nishi, Youichi Fukada, Akihiro Morita, Seiji Yoshida, Takashi Hirose
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Publication number: 20210286087Abstract: 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: ApplicationFiled: July 11, 2019Publication date: September 16, 2021Inventors: Seiji Yoshida, Masakatsu Fujiwara
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Publication number: 20210239846Abstract: 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 tType: ApplicationFiled: July 11, 2019Publication date: August 5, 2021Inventors: Seiji Yoshida, Masakatsu Fujiwara
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Patent number: 10520605Abstract: 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: GrantFiled: February 12, 2016Date of Patent: December 31, 2019Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Keisuke Nishi, Youichi Fukada, Akihiro Morita, Seiji Yoshida, Takashi Hirose