Patents by Inventor Yusuke Todo
Yusuke Todo 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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Patent number: 11728441Abstract: A semiconductor apparatus includes a first semiconductor layer, a second semiconductor layer, and a structure provided between the first and second semiconductor layers. The semiconductor apparatus further includes a first electrode supported by a first insulating layer, a second electrode supported by a second insulating layer, a first wire bonded to the first electrode through a first opening provided in the first semiconductor layer, and a second wire bonded to the second electrode through a second opening provided in the first semiconductor layer, and an annular member made of a non-insulating material and provided between the first semiconductor layer and the first electrode. A distance from the second semiconductor layer to a first joint between the first electrode and the first wire is longer than a distance from the second semiconductor layer to a second joint between the second electrode and the second wire.Type: GrantFiled: March 26, 2021Date of Patent: August 15, 2023Assignee: Canon Kabushiki KaishaInventors: Hideki Hayashi, Junji Iwata, Keita Torii, Yusuke Todo
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Patent number: 11209387Abstract: A gas sensor element including a solid electrolyte body, a sensor electrode, and a reference electrode is provided. The solid electrolyte body has oxygen ion conductivity and includes a measurement gas surface to be exposed to a measurement gas introduced from the exterior and a reference gas surface to be exposed to a reference gas introduced from the exterior. The sensor electrode is provided on the measurement gas surface of the solid electrolyte body. The reference electrode is provided on the reference gas surface of the solid electrolyte body. The sensor electrode includes a porous body containing a solid electrolyte having oxygen ion conductivity and a precious metal, the peak pore size of the sensor electrode being 0.03 ?m to 0.3 ?m.Type: GrantFiled: December 9, 2016Date of Patent: December 28, 2021Assignee: DENSO CORPORATIONInventors: Yusuke Todo, Mitsunobu Nakato, Hiroki Ichikawa
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Publication number: 20210305439Abstract: A semiconductor apparatus includes a first semiconductor layer, a second semiconductor layer, and a structure provided between the first and second semiconductor layers. The semiconductor apparatus further includes a first electrode supported by a first insulating layer, a second electrode supported by a second insulating layer, a first wire bonded to the first electrode through a first opening provided in the first semiconductor layer, and a second wire bonded to the second electrode through a second opening provided in the first semiconductor layer, and an annular member made of a non-insulating material and provided between the first semiconductor layer and the first electrode. A distance from the second semiconductor layer to a first joint between the first electrode and the first wire is longer than a distance from the second semiconductor layer to a second joint between the second electrode and the second wire.Type: ApplicationFiled: March 26, 2021Publication date: September 30, 2021Inventors: Hideki Hayashi, Junji Iwata, Keita Torii, Yusuke Todo
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Publication number: 20210305324Abstract: A color filter array is provided. The array comprises a first color filter, a second color filter, and a third color filter that are arranged on a base member and respectively have different colors. The first color filter and the third color filter are arranged adjacent to each other, the second color filter includes a portion placed between an end portion of the third color filter and the base member, and the end portion of the third color filter and the portion of the second color filter are in contact with the first color filter.Type: ApplicationFiled: March 18, 2021Publication date: September 30, 2021Inventors: Yoshihisa Kawamura, Hideki Ina, Yuto Nozaki, Yusuke Todo, Atsushi Kanome, Norihiko Nakata, Toru Eto
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Publication number: 20210255137Abstract: A gas sensor includes a sensor element including a solid electrolyte, a gas chamber, a pump electrode, a sensor electrode, and a reference electrode. The pump electrode and sensor electrode are provided in the solid electrolyte in a state in which the pump electrode and the sensor electrode are housed in the gas chamber. The reference electrode is provided in the solid electrolyte. The pump electrode and the sensor electrode contain Au. Au content in a surface layer is equal to or greater than 1 mass % and higher than Au content in a reference layer. The surface layer is an area from a surface of the sensor electrode to a depth of 0.3 nanometers. The reference layer is an area extending to a depth of 2 or more to 3 or less nanometers from the surface of the sensor electrode.Type: ApplicationFiled: May 6, 2021Publication date: August 19, 2021Inventors: Tatsuya YOSHIKAWA, Yusuke TODO, Mitsunobu NAKATO, Takashi ARAKI, Yuji KAWASAKI
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Patent number: 11092099Abstract: It is to determine whether a temperature rise condition of a first cell or a second cell is satisfied based on whether a first parameter has exceeded a predetermined first threshold or a second parameter has exceeded a predetermined second threshold. After satisfaction of the temperature rise condition, it is to determine that an exhaust gas sensor is in an active state upon determination that a corresponding time condition is satisfied.Type: GrantFiled: March 27, 2020Date of Patent: August 17, 2021Assignee: DENSO CORPORATIONInventors: Yuki Murayama, Ryozo Kayama, Yusuke Todo, Manabu Yoshidome
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Patent number: 11035283Abstract: A microcomputer includes a voltage application unit that selectively applies a normal voltage and a removal voltage higher than the normal voltage to a first cell of the exhaust gas sensor. The first cell is configured to remove, based on the removal voltage, oxygen in an exhaust gas from an internal combustion engine. The microcomputer includes an element temperature measurement unit that measures an element temperature parameter indicative of a temperature of the first cell. The microcomputer includes a termination determination unit that determines, based on the element temperature parameter, a termination time of terminating the application of the removal voltage to the first cell by the voltage application unit.Type: GrantFiled: March 27, 2020Date of Patent: June 15, 2021Assignee: DENSO CORPORATIONInventors: Yuki Murayama, Ryozo Kayama, Yusuke Todo, Manabu Yoshidome
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Publication number: 20210088472Abstract: A gas sensor, an oxygen concentration measuring unit, and a computation unit are included. The gas sensor measures a concentration CNOX of specific gas contained in measured gas. The oxygen concentration measuring unit measures a concentration CO2 of oxygen in the measured gas outside the gas sensor. The gas sensor has a measured gas chamber, a reference gas chamber, a diffusion resistance unit, a pump cell, and a sensor cell. The computation unit computes a concentration CNOX of the specific gas by using the concentration CO2 of oxygen measured by using the oxygen concentration measurement unit and the sensor current.Type: ApplicationFiled: December 3, 2020Publication date: March 25, 2021Inventors: Yusuke KAWAMOTO, Yusuke TODO, Hiroo IMAMURA, Mitsunobu NAKATO
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Patent number: 10935517Abstract: A gas sensor element of the present disclosure includes a measurement gas chamber, a solid electrolyte body, and a sensor electrode. The sensor electrode has a noble metal region which contains at least Rh and Pt, an electrolyte region which is formed by a solid electrolyte, and a mixed region in which the noble metal and the solid electrolyte are mixed. With respect to a correlation curve which represents a correlation between a mass percentage concentration c of Rh and a thickness d of the mixed region, when a reaction resistance to a measured gas in the sensor electrode is 40 k?, the concentration c of Rh and the thickness d are set so that at coordinates (c, d), the concentration c has a positive coordinate point and the thickness d has a positive coordinate point.Type: GrantFiled: December 20, 2017Date of Patent: March 2, 2021Assignee: DENSO CORPORATIONInventors: Yusuke Todo, Mitsunobu Nakato, Hiroaki Yoto
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Patent number: 10837938Abstract: A gas sensor device is equipped with a diffusion controlling portion, a pump cell, and a sensor cell. The diffusion controlling portion is formed to face a major surface of a solid electrolyte body and works to control a rate of diffusion of a measurement gas entering a measurement gas chamber. The pump cell has a pump electrode which contains gold and is formed on the major surface. The pump electrode is located downstream of the diffusion controlling portion in a gas flow direction. The pump cell works to regulate a concentration of oxygen in the measurement gas upon application of voltage to the pump electrode. The sensor cell has a sensor electrode formed on the major surface downstream of the diffusion controlling portion in the gas flow direction. The sensor cell works to measure a concentration of nitrogen oxide contained in the measurement gas upon application of voltage to the sensor electrode. The pump electrode is disposed upstream of the sensor electrode at a distance of 0.Type: GrantFiled: December 21, 2017Date of Patent: November 17, 2020Assignee: DENSO CORPORATIONInventors: Takashi Araki, Yusuke Todo
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Patent number: 10732143Abstract: A gas sensor element of the present disclosure includes a measurement gas chamber, a pump cell, a sensor cell including a sensor electrode, and a pump-cell controller. When the gas sensor element is activated before detecting a concentration of a gas, in order to remove oxygen occluded in the sensor electrode, the pump-cell controller applies a removing voltage to the pump cell so that a reducing gas is generated. The sensor electrode has a plurality of noble metal regions which are made of noble metal and electrolyte regions which are distributed so that an interface is generated between a part of a solid electrolyte body and the plurality of noble metal regions. The sensor electrode has an open pore which extends from an electrode surface of the sensor electrode and reaches at least one of the plurality of noble metal regions.Type: GrantFiled: December 21, 2017Date of Patent: August 4, 2020Assignee: DENSO CORPORATIONInventors: Hiroki Ichikawa, Yusuke Todo, Takashi Araki
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Publication number: 20200224575Abstract: A microcomputer includes a voltage application unit that selectively applies a normal voltage and a removal voltage higher than the normal voltage to a first cell of the exhaust gas sensor. The first cell is configured to remove, based on the removal voltage, oxygen in an exhaust gas from an internal combustion engine. The microcomputer includes an element temperature measurement unit that measures an element temperature parameter indicative of a temperature of the first cell. The microcomputer includes a termination determination unit that determines, based on the element temperature parameter, a termination time of terminating the application of the removal voltage to the first cell by the voltage application unit.Type: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Inventors: Yuki MURAYAMA, Ryozo KAYAMA, Yusuke TODO, Manabu YOSHIDOME
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Publication number: 20200224600Abstract: It is to determine whether a temperature rise condition of a first cell or a second cell is satisfied based on whether a first parameter has exceeded a predetermined first threshold or a second parameter has exceeded a predetermined second threshold. After satisfaction of the temperature rise condition, it is to determine that an exhaust gas sensor is in an active state upon determination that a corresponding time condition is satisfied.Type: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Inventors: Yuki MURAYAMA, Ryozo KAYAMA, Yusuke TODO, Manabu YOSHIDOME
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Patent number: 10393696Abstract: A gas sensor includes a sensor element. The sensor element includes; a solid electrolyte body that has oxygen ion conductivity and includes a first main surface exposed to a gas to be measured and a second main surface exposed to a reference gas; a sensor electrode that is provided on the first main surface and detects a specific gas component in the gas to be measured; and a reference electrode that is provided on the second main surface. The sensor electrode is made of a Pt—Rh alloy that contains 30 mass % to 70 mass % Pt and 70 mass % to 30 mass % Rh, when an overall noble metal component is 100 mass %. A variation amount of the Rh content of the Pt—Rh alloy from an outermost surface to a depth of 350 nm in a thickness direction of the sensor electrode is within a range of up to 10 mass %.Type: GrantFiled: July 14, 2017Date of Patent: August 27, 2019Assignee: DENSO CORPORATIONInventors: Yusuke Todo, Mitsunobu Nakato, Hiroaki Yoto, Hiroki Ichikawa
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Publication number: 20190004008Abstract: A gas sensor element including a solid electrolyte body, a sensor electrode, and a reference electrode is provided. The solid electrolyte body has oxygen ion conductivity and includes a measurement gas surface to be exposed to a measurement gas introduced from the exterior and a reference gas surface to be exposed to a reference gas introduced from the exterior. The sensor electrode is provided on the measurement gas surface of the solid electrolyte body. The reference electrode is provided on the reference gas surface of the solid electrolyte body. The sensor electrode includes a porous body containing a solid electrolyte having oxygen ion conductivity and a precious metal, the peak pore size of the sensor electrode being 0.03 ?m to 0.3 ?m.Type: ApplicationFiled: December 9, 2016Publication date: January 3, 2019Applicant: DENSO CORPORATIONInventors: Yusuke TODO, Mitsunobu NAKATO, Hiroki ICHIKAWA
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Publication number: 20180172626Abstract: A gas sensor element of the present disclosure includes a measurement gas chamber, a solid electrolyte body, and a sensor electrode. The sensor electrode has a noble metal region which contains at least Rh and Pt, an electrolyte region which is formed by a solid electrolyte, and a mixed region in which the noble metal and the solid electrolyte are mixed. With respect to a correlation curve which represents a correlation between a mass percentage concentration c of Rh and a thickness d of the mixed region, when a reaction resistance to a measured gas in the sensor electrode is 40 k?, the concentration c of Rh and the thickness d are set so that at coordinates (c, d), the concentration c has a positive coordinate point and the thickness d has a positive coordinate point.Type: ApplicationFiled: December 20, 2017Publication date: June 21, 2018Inventors: Yusuke TODO, Mitsunobu NAKATO, Hiroaki YOTO
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Publication number: 20180172625Abstract: A gas sensor element of the present disclosure includes a measurement gas chamber, a pump cell, a sensor cell including a sensor electrode, and a pump-cell controller. When the gas sensor element is activated before detecting a concentration of a gas, in order to remove oxygen occluded in the sensor electrode, the pump-cell controller applies a removing voltage to the pump cell so that a reducing gas is generated. The sensor electrode has a plurality of noble metal regions which are made of noble metal and electrolyte regions which are distributed so that an interface is generated between a part of a solid electrolyte body and the plurality of noble metal regions. The sensor electrode has an open pore which extends from an electrode surface of the sensor electrode and reaches at least one of the plurality of noble metal regions.Type: ApplicationFiled: December 21, 2017Publication date: June 21, 2018Inventors: Hiroki ICHIKAWA, Yusuke TODO, Takashi ARAKI
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Publication number: 20180172623Abstract: A gas sensor device is equipped with a diffusion controlling portion, a pump cell, and a sensor cell. The diffusion controlling portion is formed to face a major surface of a solid electrolyte body and works to control a rate of diffusion of a measurement gas entering a measurement gas chamber. The pump cell has a pump electrode which contains gold and is formed on the major surface. The pump electrode is located downstream of the diffusion controlling portion in a gas flow direction. The pump cell works to regulate a concentration of oxygen in the measurement gas upon application of voltage to the pump electrode. The sensor cell has a sensor electrode formed on the major surface downstream of the diffusion controlling portion in the gas flow direction. The sensor cell works to measure a concentration of nitrogen oxide contained in the measurement gas upon application of voltage to the sensor electrode. The pump electrode is disposed upstream of the sensor electrode at a distance of 0.Type: ApplicationFiled: December 21, 2017Publication date: June 21, 2018Inventors: Takashi ARAKI, Yusuke TODO
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Publication number: 20180017520Abstract: A gas sensor includes a sensor element. The sensor element includes; a solid electrolyte body that has oxygen ion conductivity and includes a first main surface exposed to a gas to be measured and a second main surface exposed to a reference gas; a sensor electrode that is provided on the first main surface and detects a specific gas component in the gas to be measured; and a reference electrode that is provided on the second main surface. The sensor electrode is made of a Pt—Rh alloy that contains 30 mass % to 70 mass % Pt and 70 mass % to 30 mass % Rh, when an overall noble metal component is 100 mass %. A variation amount of the Rh content of the Pt—Rh alloy from an outermost surface to a depth of 350 nm in a thickness direction of the sensor electrode is within a range of up to 10 mass %.Type: ApplicationFiled: July 14, 2017Publication date: January 18, 2018Inventors: Yusuke TODO, Mitsunobu NAKATO, Hiroaki YOTO, Hiroki ICHIKAWA
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Patent number: 9406952Abstract: A fuel battery cell includes, between a pair of upper and lower interconnectors, a gas sealing part in an air-electrode side, a separator, a fuel electrode frame, and a gas sealing part in a fuel-electrode side. The gas sealing part includes a first gas flowing path penetrating therethrough in a stacking direction of the fuel battery cell to constitute a part of gas flowing paths, and a second gas flowing path extending along a plane direction of the gas sealing part. In the gas sealing part, the first and second gas flowing paths do not communicate with each other. A third gas flowing path is formed in a member stacked on at least one of both sides of the gas sealing part in a thickness direction of the gas sealing part. Through the third gas flowing path, the first and second gas flowing paths communicate with each other.Type: GrantFiled: May 6, 2011Date of Patent: August 2, 2016Assignee: NGK SPARK PLUG CO., LTD.Inventors: Yusuke Todo, Daisuke Komatsu, Yasuo Okuyama, Hideki Uematsu, Hiroya Ishikawa