Patents by Inventor Takeshi Hirabayashi
Takeshi Hirabayashi 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: 20230242371Abstract: A post-processing device (200) includes a circulation conveyance path, a zeroth conveyer (R0), and a controller (50). The circulation conveyance path includes a first conveyance path (W1), a second conveyance path (W2), a third conveyance path (W3), a first conveyer (R1), a second conveyer (R2), and a third conveyer (R3). The first and second conveyers convey a preceding sheet (P1) along the first and second conveyance paths. The third conveyer conveys it from the third conveyance path to the first conveyance path. The zeroth conveyer conveys a following sheet (P2) toward the first conveyer. The controller controls the third conveyer to stop the preceding sheet, subsequently controls the zeroth conveyer and the third conveyer to overlay the preceding sheet with the following sheet to form a sheet bundle (Q) having a shift amount (G) between a leading edges of the preceding sheet and the following sheet and strike the leading edges of the preceding sheet and the following sheet against the first conveyer.Type: ApplicationFiled: August 18, 2021Publication date: August 3, 2023Applicant: Ricoh Company, Ltd.Inventors: Atsushi KURIYAMA, Yuuki NAKAGAWA, Takeshi HIRABAYASHI, Takato MOCHIZUKI, Ryoh SUZUKI, Kentaroh FUKAMI, Yusuke TANAKA, Takaya FUKUHARA
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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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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: 10286392Abstract: The present invention provides an exhaust gas purification catalyst provided with: a substrate of wall flow structure in which inlet cells and outlet cells are partitioned by porous partition walls; and a catalyst layer disposed at least inside the partition wall and including a catalyst body. The catalyst layer satisfies the following conditions: (1) the pore volume of pores no larger than 5 ?m, as measured in accordance with a mercury intrusion technique, is 24000 mm3 or greater per L of volume of the substrate; and (2) a permeability coefficient measured by a Perm porometer is 0.6 ?m2 to 4.4 ?m2.Type: GrantFiled: August 1, 2018Date of Patent: May 14, 2019Assignees: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shintaro Kobayashi, Makoto Tsuji, Hiroto Imai, Takeshi Hirabayashi
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Publication number: 20190099749Abstract: The present invention provides an exhaust gas purification catalyst provided with: a substrate of wall flow structure in which inlet cells and outlet cells are partitioned by porous partition walls; and a catalyst layer disposed at least inside the partition wall and including a catalyst body. The catalyst layer satisfies the following conditions: (1) the pore volume of pores no larger than 5 ?m, as measured in accordance with a mercury intrusion technique, is 24000 mm3 or greater per L of volume of the substrate; and (2) a permeability coefficient measured by a Perm porometer is 0.6 ?m2 to 4.4 ?m2.Type: ApplicationFiled: August 1, 2018Publication date: April 4, 2019Applicants: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shintaro KOBAYASHI, Makoto TSUJI, Hiroto IMAI, Takeshi HIRABAYASHI
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Patent number: 8511678Abstract: A sheet processing apparatus includes a fixed tray and a movable tray. The fixed tray is fixed at its downstream portion in a sheet transport direction and includes a sheet loading surface. A downstream portion of the sheet loading surface of the fixed tray is positioned at a higher level than an upstream portion thereof. The movable tray is pivotally supported, at its upstream portion, by a pivot support provided on the fixed tray. An angle between a sheet loading surface of the movable tray and a horizontal direction is more gentle than an angle between the sheet loading surface of the fixed tray and the horizontal direction.Type: GrantFiled: February 23, 2010Date of Patent: August 20, 2013Assignee: Ricoh Company, LimitedInventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida
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Patent number: 8433236Abstract: A paper processing apparatus includes: a discharging unit that discharges the paper onto a staple tray; a paper returning unit that reverses the paper discharged by the discharging unit and performs alignment in a conveying direction by abutting the paper against a rear end reference fence; a supporting unit that supports the discharging unit in a state capable of coming in contact with or separating from the paper; a contact and separation unit by which the discharging unit comes in contact with or separates from the paper; and a pressurizing unit that is moved by the contact and separation unit, does not load the discharging unit in a standby state where the discharging unit is held apart from the paper, and applies contact pressure in a state where the discharging unit is in contact with the paper.Type: GrantFiled: September 24, 2010Date of Patent: April 30, 2013Assignee: Ricoh Company, Ltd.Inventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Daishi Watanabe, Kazumasa Takeuchi, Hiroki Yoshida
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Patent number: 8211293Abstract: A method of correcting NOx sensor includes the steps of preparing a corrective map in advance, finding an existing proportion of NO or NO2 in a mixture of NOx in exhaust gases before coming into an NOx sensor, and correcting an NOx concentration that the NOx sensor detects actually. The corrective map records relationships between temperature physical quantities that are relevant to a temperature of the exhaust gases, oxygen-concentration physical quantities that are relevant to an oxygen concentration in the exhaust gases, and the existing proportion. The existing proportion is found with reference to the corrective map using the temperature physical quantities and oxygen-concentration physical quantities that are detected actually. The NOx concentration is corrected on the basis of not only the existing proportion but also a difference between an NO2 diffusion velocity and an NO diffusion velocity.Type: GrantFiled: June 15, 2010Date of Patent: July 3, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroki Nishijima, Takeshi Hirabayashi, Fumitaka Kato
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Patent number: 8196915Abstract: A sheet processing apparatus includes: a staple tray on which sheets are stacked temporarily and stapled after being aligned together and from which the stapled sheets are discharged to a discharge tray; a discharger to discharge the sheets to the staple tray; a rear end reference against which rear ends of the sheets are abutted to be aligned together; a returner to return the sheets discharged by the discharger and to align the sheets together in a conveying direction based on the rear end reference fence; a lifter to lift and lower the returner with respect to a sheet; and a guide configured to guide the sheets toward the rear end reference fence when the sheets are returned and to be lifted and lowered in synchronization with the lifting and lowering by the lifter.Type: GrantFiled: September 14, 2010Date of Patent: June 12, 2012Assignee: Ricoh Company, Ltd.Inventors: Takeshi Hirabayashi, Shigefumi Soga, Terumitsu Azuma, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida, Toshikazu Satoh, Daishi Watanabe, Kazumasa Takeuchi
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Publication number: 20110091260Abstract: A paper processing apparatus includes: a discharging unit that discharges the paper onto a staple tray; a paper returning unit that reverses the paper discharged by the discharging unit and performs alignment in a conveying direction by abutting the paper against a rear end reference fence; a supporting unit that supports the discharging unit in a state capable of coming in contact with or separating from the paper; a contact and separation unit by which the discharging unit comes in contact with or separates from the paper; and a pressurizing unit that is moved by the contact and separation unit, does not load the discharging unit in a standby state where the discharging unit is held apart from the paper, and applies contact pressure in a state where the discharging unit is in contact with the paper.Type: ApplicationFiled: September 24, 2010Publication date: April 21, 2011Applicant: Ricoh Company, Ltd.Inventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Daishi Watanabe, Kazumasa Takeuchi, Hiroki Yoshida
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Publication number: 20110074081Abstract: A sheet processing apparatus includes: a staple tray on which sheets are stacked temporarily and stapled after being aligned together and from which the stapled sheets are discharged to a discharge tray; a discharger to discharge the sheets to the staple tray; a rear end reference against which rear ends of the sheets are abutted to be aligned together; a returner to return the sheets discharged by the discharger and to align the sheets together in a conveying direction based on the rear end reference fence; a lifter to lift and lower the returner with respect to a sheet; and a guide configured to guide the sheets toward the rear end reference fence when the sheets are returned and to be lifted and lowered in synchronization with the lifting and lowering by the lifter.Type: ApplicationFiled: September 14, 2010Publication date: March 31, 2011Applicant: RICOH COMPANY, LIMITEDInventors: Takeshi Hirabayashi, Shigefumi Soga, Terumitsu Azuma, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida, Toshikazu Satoh, Daishi Watanabe, Kazumasa Takeuchi
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Publication number: 20100314264Abstract: A method of correcting NOx sensor includes the steps of preparing a corrective map in advance, finding an existing proportion of NO or NO2 in a mixture of NOx in exhaust gases before coming into an NOx sensor, and correcting an NOx concentration that the NOx sensor detects actually. The corrective map records relationships between temperature physical quantities that are relevant to a temperature of the exhaust gases, oxygen-concentration physical quantities that are relevant to an oxygen concentration in the exhaust gases, and the existing proportion. The existing proportion is found with reference to the corrective map using the temperature physical quantities and oxygen-concentration physical quantities that are detected actually. The NOx concentration is corrected on the basis of not only the existing proportion but also a difference between an NO2 diffusion velocity and an NO diffusion velocity.Type: ApplicationFiled: June 15, 2010Publication date: December 16, 2010Inventors: Hiroki NISHIJIMA, Takeshi HIRABAYASHI, Fumitaka KATO
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Publication number: 20100237556Abstract: A sheet processing apparatus includes a fixed tray and a movable tray. The fixed tray is fixed at its downstream portion in a sheet transport direction and includes a sheet loading surface. A downstream portion of the sheet loading surface of the fixed tray is positioned at a higher level than an upstream portion thereof. The movable tray is pivotally supported, at its upstream portion, by a pivot support provided on the fixed tray. An angle between a sheet loading surface of the movable tray and a horizontal direction is more gentle than an angle between the sheet loading surface of the fixed tray and the horizontal direction.Type: ApplicationFiled: February 23, 2010Publication date: September 23, 2010Inventors: Terumitsu Azuma, Shigefumi Soga, Takeshi Hirabayashi, Kentaro Fukami, Shinji Tanoue, Hiroki Yoshida
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Patent number: 7745371Abstract: In order to provide an exhaust gas purifying catalyst having improved heat resistance and OSC, a metal oxide particle, and a production process of the metal oxide particle, a metal oxide particle having a core (1) where the total molar number of alumina and silica is larger than the molar number of ceria, and a surface layer (2) where the molar number of ceria is larger than the total molar number of alumina and silica is provided. Further, an exhaust gas purifying catalyst comprising the metal oxide particle and a noble metal supported on the metal oxide particle; and a production process of the metal oxide particle are provided.Type: GrantFiled: March 8, 2005Date of Patent: June 29, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takeshi Hirabayashi, Oji Kuno, Masahide Miura
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Publication number: 20070179052Abstract: In order to provide an exhaust gas purifying catalyst having improved heat resistance and OSC, a metal oxide particle, and a production process of the metal oxide particle, a metal oxide particle having a core (1) where the total molar number of alumina and silica is larger than the molar number of ceria, and a surface layer (2) where the molar number of ceria is larger than the total molar number of alumina and silica is provided. Further, an exhaust gas purifying catalyst comprising the metal oxide particle and a noble metal supported on the metal oxide particle; and a production process of the metal oxide particle are provided.Type: ApplicationFiled: March 8, 2005Publication date: August 2, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Hirabayashi, Oji Kuno, Masahide Miura
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Patent number: 6952202Abstract: The apparatus for inputting coordinates has a support plate including a coordinate input plane for inputting a coordinate position, an optical unit is formed by integrating a light source and a light receiver. The light source emits light which is substantially parallel to the coordinate input plane. A reflecting section reflects the light emitted from the light source. The optical unit is embedded in the coordinate input plate by the use of a frame, an optical unit retaining plate and a screw.Type: GrantFiled: January 19, 2001Date of Patent: October 4, 2005Assignee: Ricoh Company, Ltd.Inventor: Takeshi Hirabayashi
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Patent number: 6692707Abstract: Monolith catalyst 42 is disposed in the reaction layer 40 of reformer 20, the monolith catalyst 42 carrying a copper-zinc catalyst which accelerates a water vapor reforming reaction and an oxidation reaction of methanol on a monolith carrier with a ratio of the length to the diameter between 5 and 18, more preferably 8 and 15, 600 to 3400 cells per square inch, more preferably 900 to 3000 cells per square inch, and formed from ceramics of low thermal conductivity at the region within 15 mm from the flow-in end of the mixture gas and from a metal of high thermal conductivity at the other portions. As a result, the degree of freedom of design and the efficiency of the water vapor reforming reaction can both be improved.Type: GrantFiled: February 7, 2000Date of Patent: February 17, 2004Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takeshi Hirabayashi