Patents by Inventor Masatoshi IKEBE
Masatoshi IKEBE 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: 11918986Abstract: There is provided an exhaust gas purification device that shows a high HC removal performance under a condition in which a rich air-fuel mixture is introduced. The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region including the upstream end of the substrate. The second catalyst layer is disposed inside the partition wall in a downstream region including the downstream end of the substrate. The first catalyst layer contains a first metal catalyst and alumina-zirconia composite oxide. The second catalyst layer contains a second metal catalyst.Type: GrantFiled: May 24, 2022Date of Patent: March 5, 2024Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Takeshi Hirabayashi, Akemi Satou, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe, Kohei Takasaki, Takeshi Morishima
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Publication number: 20240018891Abstract: Provided is an exhaust gas purification system that allows suppressing the emission of carbon monoxide (CO). An exhaust gas purification system includes a three-way catalyst and a particulate filter and a control device. The three-way catalyst and the particulate filter are arranged respectively on an upstream side and a downstream side of an exhaust channel connected to an internal combustion engine. The control device controls the internal combustion engine so as to execute fuel cut during a deceleration operation of the internal combustion engine. The particulate filter includes a honeycomb substrate and an outflow cell side catalyst layer. The honeycomb substrate includes a porous partition wall defining a plurality of cells extending from an inflow side end surface to an outflow side end surface. The plurality of cells include an inflow cell and an outflow cell adjacent across the partition wall. The inflow cell has an open inflow side end and a sealed outflow side end.Type: ApplicationFiled: July 6, 2023Publication date: January 18, 2024Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji SUGIURA, Seiji NAKAHIGASHI, Masatoshi IKEBE, Takaya OTA, Takeshi MORISHIMA, Eiji HARADA
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Patent number: 11679379Abstract: The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end, a downstream end, and a porous partition wall defining a plurality of cells extending between the upstream end and the downstream end. The plurality of cells include an inlet cell opening at the upstream end and sealed at the downstream end, and an outlet cell adjacent to the inlet cell sealed at the upstream end and opening at the downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region. In a downstream region, the second catalyst layer is disposed inside the partition wall, and a second catalyst-containing wall including the partition wall and the second catalyst layer has a porosity of 35% or more.Type: GrantFiled: May 2, 2022Date of Patent: June 20, 2023Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Takeshi Hirabayashi, Akemi Satou, Keisuke Murawaki, Takaya Ota, Masatoshi Ikebe, Kohei Takasaki, Takeshi Morishima
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Patent number: 11660589Abstract: An exhaust gas purification device that allows suppressing an increase in pressure loss is provided. The exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. The substrate includes a porous partition wall which defines inflow cells and outflow cells extending from an inflow side end to an outflow side end. The inflow cell side catalyst layer is disposed on a surface on the inflow cell side in an inflow cell side catalyst region from an inflow side end to a position close to an outflow side end of the partition wall. The permeability of a portion including an outflow side region from the position to the outflow side end of the partition wall is higher than a gas permeability of a portion including the inflow cell side catalyst region of the partition wall and the inflow cell side catalyst layer.Type: GrantFiled: May 1, 2020Date of Patent: May 30, 2023Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Akemi Sato, Masatoshi Ikebe, Ryota Nakashima, Yasutaka Nomura, Hirotaka Ori
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Patent number: 11602742Abstract: Provided is an exhaust gas purification device that ensures an improved purification performance and a suppressed pressure loss. An exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. disposed on a surface on the inflow cell side in an inflow side region of the partition wall. When a gas permeability coefficient of an inflow side partition wall portion including the inflow side region of the partition wall and the inflow cell side catalyst layer is Ka and a gas permeability coefficient of an outflow side partition wall portion including an outflow side region at least from the predetermined position to an outflow side end of the partition wall is Kb, a ratio Ka/Kb of the gas permeability coefficients is within a range of 0.4 or more and 0.8 or less.Type: GrantFiled: February 18, 2021Date of Patent: March 14, 2023Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Akemi Sato, Ryota Nakashima, Masatoshi Ikebe, Keisuke Murawaki, Hirotaka Ori
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Publication number: 20220387983Abstract: There is provided an exhaust gas purification device that shows a high HC removal performance under a condition in which a rich air-fuel mixture is introduced. The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region including the upstream end of the substrate. The second catalyst layer is disposed inside the partition wall in a downstream region including the downstream end of the substrate. The first catalyst layer contains a first metal catalyst and alumina-zirconia composite oxide. The second catalyst layer contains a second metal catalyst.Type: ApplicationFiled: May 24, 2022Publication date: December 8, 2022Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji SUGIURA, Takeshi HIRABAYASHI, Akemi SATOU, Keisuke MURAWAKI, Takaya OTA, Masatoshi IKEBE, Kohei TAKASAKI, Takeshi MORISHIMA
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Publication number: 20220370997Abstract: The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end, a downstream end, and a porous partition wall defining a plurality of cells extending between the upstream end and the downstream end. The plurality of cells include an inlet cell opening at the upstream end and sealed at the downstream end, and an outlet cell adjacent to the inlet cell sealed at the upstream end and opening at the downstream end. The first catalyst layer is disposed on a surface of the partition wall in an upstream region. In a downstream region, the second catalyst layer is disposed inside the partition wall, and a second catalyst-containing wall including the partition wall and the second catalyst layer has a porosity of 35% or more.Type: ApplicationFiled: May 2, 2022Publication date: November 24, 2022Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji SUGIURA, Takeshi HIRABAYASHI, Akemi SATOU, Keisuke MURAWAKI, Takaya OTA, Masatoshi IKEBE, Kohei TAKASAKI, Takeshi MORISHIMA
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Publication number: 20220347626Abstract: An exhaust gas purification device suppresses a pressure loss increase and includes a honeycomb substrate and inflow cell side catalyst layer. The substrate includes a porous partition wall defining several cells extending from an inflow side end surface to an outflow side end surface. The cells include an inflow and outflow cell adjacent across the wall. The inflow cell has an open inflow side end and sealed outflow side end. The outflow cell has a sealed inflow side end and open outflow side end. The catalyst layer is on an inflow cell side surface in an region extending from the inflow side end positioned 10% or more of the partition wall length. At this position, a filled portion of the inflow cell side catalyst layer pores are 40% or less. The pores are present to a depth of 50% of a thickness of the partition wall.Type: ApplicationFiled: April 11, 2022Publication date: November 3, 2022Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Akemi SATO, Takeshi HIRABAYASHI, Koji SUGIURA, Keisuke MURAWAKI, Takaya OTA, Masatoshi IKEBE, Kohei TAKASAKI, Takeshi MORISHIMA
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Patent number: 11473472Abstract: An exhaust gas control apparatus includes a honeycomb substrate and an inlet cell-side catalyst layer. The honeycomb substrate includes a porous partition wall that defines a plurality of cells extending from an inlet-side end face to an outlet-side end face. The cells include an inlet cell and an outlet cell that are adjacent to each other with the partition wall therebetween. The inlet cell is open at its inlet-side end and is sealed at its outlet-side end. The outlet cell is sealed at its inlet-side end and is open at its outlet-side end. The inlet cell-side catalyst layer is provided on a surface on the inlet cell side of the partition wall and extends from an inlet-side end of the partition wall. Porosity of the inlet cell-side catalyst layer is in a specific range.Type: GrantFiled: April 15, 2021Date of Patent: October 18, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Akemi Satou, Keisuke Murawaki, Masatoshi Ikebe, Takaya Ota, Ryota Nakashima, Hirotaka Ori
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Patent number: 11415039Abstract: There is provided a structure including: a substrate including a first and a second ends, and a porous partition wall defining a first and a second cells extending between the first and the second ends; a first catalyst; and a second catalyst. In a first area, the first catalyst is disposed on a first surface of the partition wall, and the partition wall with the first catalyst disposed on the partition wall is impermeable to gas. In a second area, the first catalyst is not provided, the second catalyst is disposed in a region including at least a part inside the partition wall, the part facing the first cell, and the partition wall with the second catalyst disposed in the partition wall is permeable to gas. In a third area, any of the first catalyst or the second catalyst is not provided, and the partition wall is permeable to gas.Type: GrantFiled: April 17, 2020Date of Patent: August 16, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Hiromasa Nishioka, Naoto Miyoshi, Akemi Sato, Masatoshi Ikebe, Ryota Nakashima, Yasutaka Nomura
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Publication number: 20210324777Abstract: An exhaust gas control apparatus includes a honeycomb substrate and an inlet cell-side catalyst layer. The honeycomb substrate includes a porous partition wall that defines a plurality of cells extending from an inlet-side end face to an outlet-side end face. The cells include an inlet cell and an outlet cell that are adjacent to each other with the partition wall therebetween. The inlet cell is open at its inlet-side end and is sealed at its outlet-side end. The outlet cell is sealed at its inlet-side end and is open at its outlet-side end. The inlet cell-side catalyst layer is provided on a surface on the inlet cell side of the partition wall and extends from an inlet-side end of the partition wall. Porosity of the inlet cell-side catalyst layer is in a specific range.Type: ApplicationFiled: April 15, 2021Publication date: October 21, 2021Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji SUGIURA, Hiromasa NISHIOKA, Naoto MIYOSHI, Akemi SATOU, Keisuke MURAWAKI, Masatoshi IKEBE, Takaya OTA, Ryota NAKASHIMA, Hirotaka ORI
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Publication number: 20210283589Abstract: Provided is an exhaust gas purification device that ensures an improved purification performance and a suppressed pressure loss. An exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. disposed on a surface on the inflow cell side in an inflow side region of the partition wall. When a gas permeability coefficient of an inflow side partition wall portion including the inflow side region of the partition wall and the inflow cell side catalyst layer is Ka and a gas permeability coefficient of an outflow side partition wall portion including an outflow side region at least from the predetermined position to an outflow side end of the partition wall is Kb, a ratio Ka/Kb of the gas permeability coefficients is within a range of 0.4 or more and 0.8 or less.Type: ApplicationFiled: February 18, 2021Publication date: September 16, 2021Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji SUGIURA, Hiromasa NISHIOKA, Naoto MIYOSHI, Akemi SATO, Ryota NAKASHIMA, Masatoshi IKEBE, Keisuke MURAWAKI, Hirotaka ORI
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Publication number: 20210033009Abstract: An exhaust gas control apparatus includes: a honeycomb substrate including an inflow cell and an outflow cell adjacent to each other with a partition wall sandwiched between the inflow cell and the outflow cell; a first sealing part provided at an outflow side end of the inflow cell, and a second sealing part provided at an inflow side end of the outflow cell; and a catalyst layer provided on the partition wall, and at least one of the first sealing part and the second sealing part is an OSC material-containing sealing part containing an OSC material and a sealant, and a concentration of the OSC material in the OSC material-containing sealing part is uniform in an extending direction.Type: ApplicationFiled: June 17, 2020Publication date: February 4, 2021Inventors: Koji SUGIURA, Hiromasa NISHIOKA, Naoto MIYOSHI, Akemi SATO, Masatoshi IKEBE, Ryota NAKASHIMA, Yasutaka NOMURA, Hirotaka ORI
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Publication number: 20200368735Abstract: An exhaust gas purification device that allows suppressing an increase in pressure loss is provided. The exhaust gas purification device of the present disclosure includes a honeycomb substrate and an inflow cell side catalyst layer. The substrate includes a porous partition wall which defines inflow cells and outflow cells extending from an inflow side end to an outflow side end. The inflow cell side catalyst layer is disposed on a surface on the inflow cell side in an inflow cell side catalyst region from an inflow side end to a position close to an outflow side end of the partition wall. The permeability of a portion including an outflow side region from the position to the outflow side end of the partition wall is higher than a gas permeability of a portion including the inflow cell side catalyst region of the partition wall and the inflow cell side catalyst layer.Type: ApplicationFiled: May 1, 2020Publication date: November 26, 2020Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji SUGIURA, Hiromasa NISHIOKA, Naoto MIYOSHI, Akemi SATO, Masatoshi IKEBE, Ryota NAKASHIMA, Yasutaka NOMURA, Hirotaka ORI
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Publication number: 20200332698Abstract: There is provided a structure including: a substrate including a first and a second ends, and a porous partition wall defining a first and a second cells extending between the first and the second ends; a first catalyst; and a second catalyst. In a first area, the first catalyst is disposed on a first surface of the partition wall, and the partition wall with the first catalyst disposed on the partition wall is impermeable to gas. In a second area, the first catalyst is not provided, the second catalyst is disposed in a region including at least a part inside the partition wall, the part facing the first cell, and the partition wall with the second catalyst disposed in the partition wall is permeable to gas. In a third area, any of the first catalyst or the second catalyst is not provided, and the partition wall is permeable to gas.Type: ApplicationFiled: April 17, 2020Publication date: October 22, 2020Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Koji Sugiura, Hiromasa NISHIOKA, Naoto MIYOSHI, Akemi SATO, Masatoshi IKEBE, Ryota NAKASHIMA, Yasutaka NOMURA
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Patent number: 10801382Abstract: An exhaust gas-purifying catalyst of the present invention comprising a substrate, a first catalyst layer comprising a first supported catalyst, a second supported catalyst, palladium, and a first nitrogen oxide storage material, and a second catalyst layer comprising a third supported catalyst having an alloying rate of platinum and palladium of 40% or more and a second nitrogen oxide storage material, wherein a mass of the second supported catalyst is greater than a mass of the first supported catalyst and greater than a mass of the third supported catalyst.Type: GrantFiled: October 24, 2019Date of Patent: October 13, 2020Assignee: Cataler CorporationInventors: Daisuke Ochiai, Yoshinori Yamashita, Masatoshi Ikebe
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Publication number: 20200316578Abstract: There is provided a filter catalyst that has a wall-flow structure, and the filter catalyst has an excellent purification performance. The embodiment is a filter catalyst including a wall-flow type substrate that includes an inlet-side cell, an outlet-side cell, and a partition wall. The inlet-side cell has an open end portion on an exhaust gas flow-in side and a closed end portion on an exhaust gas flow-out side. The outlet-side cell is adjacent to the inlet-side cell and has an open end portion on the exhaust gas flow-out side and a closed end portion on the exhaust gas flow-in side. The partition wall has a porous structure and interposes between the inlet-side cell and the outlet-side cell. The filter catalyst includes an oxygen occlusion portion and a catalyst portion dispersed and disposed in the porous structure. The oxygen occlusion portion is disposed on a wall surface of the porous structure.Type: ApplicationFiled: March 13, 2020Publication date: October 8, 2020Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATIONInventors: Naoto MIYOSHI, Koji SUGIURA, Hiromasa NISHIOKA, Akemi SATO, Masatoshi IKEBE, Ryota NAKASHIMA, Yasutaka NOMURA, Hirotaka ORI
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Patent number: 10704441Abstract: An exhaust gas-purifying catalyst of the present invention comprising a substrate, a first catalyst layer comprising a first supported catalyst, a second supported catalyst, palladium, and a first nitrogen oxide storage material, and a second catalyst layer comprising a third supported catalyst having an alloying rate of platinum and palladium of 40% or more and a second nitrogen oxide storage material, wherein a mass of the second supported catalyst is greater than a mass of the first supported catalyst and greater than a mass of the third supported catalyst.Type: GrantFiled: October 24, 2019Date of Patent: July 7, 2020Assignee: Cataler CorporationInventors: Yoshinori Yamashita, Shohei Tomita, Daisuke Ochiai, Masatoshi Ikebe
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Publication number: 20200056524Abstract: An exhaust gas-purifying catalyst of the present invention comprising a substrate, a first catalyst layer comprising a first supported catalyst, a second supported catalyst, palladium, and a first nitrogen oxide storage material, and a second catalyst layer comprising a third supported catalyst having an alloying rate of platinum and palladium of 40% or more and a second nitrogen oxide storage material, wherein a mass of the second supported catalyst is greater than a mass of the first supported catalyst and greater than a mass of the third supported catalyst.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Applicant: CATALER CORPORATIONInventors: Daisuke Ochiai, Yoshinori Yamashita, Masatoshi Ikebe
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Publication number: 20200056523Abstract: An exhaust gas-purifying catalyst of the present invention comprising a substrate, a first catalyst layer comprising a first supported catalyst, a second supported catalyst, palladium, and a first nitrogen oxide storage material, and a second catalyst layer comprising a third supported catalyst having an alloying rate of platinum and palladium of 40% or more and a second nitrogen oxide storage material, wherein a mass of the second supported catalyst is greater than a mass of the first supported catalyst and greater than a mass of the third supported catalyst.Type: ApplicationFiled: October 24, 2019Publication date: February 20, 2020Applicant: CATALER CORPORATIONInventors: Yoshinori Yamashita, Shohei Tomita, Daisuke Ochiai, Masatoshi Ikebe