Patents by Inventor Yoshihide Segawa
Yoshihide Segawa 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: 11946897Abstract: A gas sensor is provided which has improved responsiveness and is capable of improving accuracy in measurement of an imbalance between cylinders. The gas sensor includes a solid electrolyte having oxygen ion conductivity, a measurement electrode mounted on one principal surface of the solid electrolyte and is exposed to measurement gas, and a reference electrode mounted on the other principal surface of the solid electrolyte and exposed to reference gas A. Interface capacitance between crystal particles constituting the solid electrolyte is not more than 150 ?F. Interface resistance between the crystal particles constituting the solid electrolyte and each of the measurement electrode and the reference electrode is not more than 80 ?. The measurement electrode has a film thickness t1 of 2 to 8 ?m.Type: GrantFiled: September 28, 2016Date of Patent: April 2, 2024Assignee: DENSO CORPORATIONInventors: Yoshihide Segawa, Junta Zushi
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Publication number: 20220401540Abstract: The present invention provides a novel technology useful for a cancer vaccine therapy, that is, a pharmaceutical composition wherein a Toll-like receptor agonist, LAG-3 protein, a variant thereof or a derivative thereof, at least one immunogenic agent, and an immune checkpoint inhibitor are administered in combination.Type: ApplicationFiled: November 26, 2020Publication date: December 22, 2022Applicant: CYTLIMIC INC.Inventors: Shun DOI, Yoshihide SEGAWA, Koji TAMADA, Hiroaki NAGANO, Shoichi HAZAMA
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Patent number: 10502704Abstract: A gas sensor includes a sensor element having a detecting portion; an insulator supporting the sensor element inserted therethrough; a housing supporting the insulator; an inner cover covering the detecting portion; and an outer cover covering the inner cover. An inner flange portion of the inner cover and the outer flange portion of the outer cover are supported between the insulator and the housing. An end face of the inner flange portion is positioned towards outer side R1 with respect to the radial direction R than the position of an end face of the outer flange portion. A corner portion between the end face and a surface in the outer flange portion protrudes into a surface of the inner flange portion.Type: GrantFiled: February 1, 2018Date of Patent: December 10, 2019Assignee: DENSO CORPORATIONInventors: Yasutaka Kamiya, Yoshihide Segawa, Hirokazu Yamada
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Patent number: 10365243Abstract: A gas sensor is provided with a sensor element having a detecting portion; an insulator supporting the sensor element in a state where the detecting portion is protruded therefrom, the sensor element being inserted through the insulator; a housing supporting the insulator; an inner cover covering the detecting portion; and an outer cover covering the inner cover. An inner flange portion of the inner cover and an outer flange portion of the outer cover are supported between the insulator and the housing. A protrusion is formed on a corner portion facing the insulator, the protrusion contacting with the insulator. An end face of the outer flange portion is positioned radially closer to an outer side with respect to a radial direction, than a position of an end face of the inner flange portion.Type: GrantFiled: February 1, 2018Date of Patent: July 30, 2019Assignee: DENSO CORPORATIONInventors: Yasutaka Kamiya, Yoshihide Segawa, Hirokazu Yamada
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Publication number: 20180313781Abstract: A gas sensor is provided which has improved responsiveness and is capable of improving accuracy in measurement of an imbalance between cylinders. The gas sensor includes a solid electrolyte having oxygen ion conductivity, a measurement electrode mounted on one principal surface of the solid electrolyte and is exposed to measurement gas, and a reference electrode mounted on the other principal surface of the solid electrolyte and exposed to reference gas A. Interface capacitance between crystal particles constituting the solid electrolyte is not more than 150 ?F. Interface resistance between the crystal particles constituting the solid electrolyte and each of the measurement electrode and the reference electrode is not more than 80 ?. The measurement electrode has a film thickness t1 of 2 to 8 ?m.Type: ApplicationFiled: September 28, 2016Publication date: November 1, 2018Inventors: Yoshihide SEGAWA, Junta ZUSHI
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Publication number: 20180217089Abstract: A gas sensor is provided with a sensor element having a detecting portion; an insulator supporting the sensor element in a state where the detecting portion is protruded therefrom, the sensor element being inserted through the insulator; a housing supporting the insulator; an inner cover covering the detecting portion; and an outer cover covering the inner cover. An inner flange portion of the inner cover and an outer flange portion of the outer cover are supported between the insulator and the housing. A protrusion is formed on a corner portion facing the insulator, the protrusion contacting with the insulator. An end face of the outer flange portion is positioned radially closer to an outer side with respect to a radial direction, than a position of an end face of the inner flange portion.Type: ApplicationFiled: February 1, 2018Publication date: August 2, 2018Inventors: Yasutaka KAMIYA, Yoshihide SEGAWA, Hirokazu YAMADA
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Publication number: 20180217090Abstract: A gas sensor includes a sensor element having a detecting portion; an insulator supporting the sensor element inserted therethrough; a housing supporting the insulator; an inner cover covering the detecting portion; and an outer cover covering the inner cover. An inner flange portion of the inner cover and the outer flange portion of the outer cover are supported between the insulator and the housing. An end face of the inner flange portion is positioned towards outer side R1 with respect to the radial direction R than the position of an end face of the outer flange portion. A corner portion between the end face and a surface in the outer flange portion protrudes into a surface of the inner flange portion.Type: ApplicationFiled: February 1, 2018Publication date: August 2, 2018Inventors: Yasutaka KAMIYA, Yoshihide SEGAWA, Hirokazu YAMADA
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Patent number: 8940657Abstract: An exhaust emission control catalyst disclosed herein is equipped with a rhodium catalytic layer and a platinum catalytic layer, and is characterized in that a relationship between a mole average (X) of a Pauling's electronegativity that is calculated as to elements included in the rhodium catalytic layer except platinum group elements and oxygen and a mole average (Y) of a Pauling's electronegativity that is calculated as to elements included in the platinum catalytic layer except platinum group elements and oxygen is 1.30?X?1.45 and 1.47?Y?2.0. According to this exhaust emission control catalyst, an interlayer transfer of platinum and/or rhodium and the alloying of platinum and/or rhodium are suppressed during use of the catalyst, and high exhaust gas purification performance can be exerted.Type: GrantFiled: May 31, 2012Date of Patent: January 27, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yoshihide Segawa
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Publication number: 20140113807Abstract: An exhaust emission control catalyst disclosed herein is equipped with a rhodium catalytic layer and a platinum catalytic layer, and is characterized in that a relationship between a mole average (X) of a Pauling's electronegativity that is calculated as to elements included in the rhodium catalytic layer except platinum group elements and oxygen and a mole average (Y) of a Pauling's electronegativity that is calculated as to elements included in the platinum catalytic layer except platinum group elements and oxygen is 1.30?X?1.45 and 1.47?Y?2.0. According to this exhaust emission control catalyst, an interlayer transfer of platinum and/or rhodium and the alloying of platinum and/or rhodium are suppressed during use of the catalyst, and high exhaust gas purification performance can be exerted.Type: ApplicationFiled: May 31, 2012Publication date: April 24, 2014Inventor: Yoshihide Segawa
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Patent number: 8603940Abstract: An automobile exhaust gas catalytic converter includes a first catalyst layer; a second catalyst layer located on a downstream side as compared to the first catalyst layer; and a base material on which the first catalyst layer and the second catalyst layer are respectively located. In the exhaust gas catalytic converter, the proportion (LB/LS) of a coating length (LB) of the second catalyst layer from a downstream end of the base material with respect to a total length (LS) of the base material in the exhaust gas flow direction is approximately 50 to 90%, the proportion of an amount of Rh contained in the second catalyst layer with respect to a total amount of Rh contained in the first catalyst layer and the second catalyst layer is approximately 50 to 90% by mass, and the rest of Rh is contained together with Pd or Pt in the first catalyst layer.Type: GrantFiled: November 2, 2011Date of Patent: December 10, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yoshihide Segawa
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Publication number: 20130213000Abstract: An automobile exhaust gas catalytic converter includes a first catalyst layer; a second catalyst layer located on a downstream side as compared to the first catalyst layer; and a base material on which the first catalyst layer and the second catalyst layer are respectively located. In the exhaust gas catalytic converter, the proportion (LB/LS) of a coating length (LB) of the second catalyst layer from a downstream end of the base material with respect to a total length (LS) of the base material in the exhaust gas flow direction is approximately 50 to 90%, the proportion of an amount of Rh contained in the second catalyst layer with respect to a total amount of Rh contained in the first catalyst layer and the second catalyst layer is approximately 50 to 90% by mass, and the rest of Rh is contained together with Pd or Pt in the first catalyst layer.Type: ApplicationFiled: November 2, 2011Publication date: August 22, 2013Inventor: Yoshihide Segawa
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Patent number: 7989047Abstract: A hexagonal-cell honeycomb structure having a plurality of cell walls having a hexagonal shape in cross-section and forming a plurality of hexagonal cell passages, and a tubular skin layer surrounding the cell walls, The thickness of the basic cell walls is 140 ?m or less and an inscribed circle diameter Da inscribed at an intersectional portion of the basic cell walls 2 and an cell pitch P having the relationship Da/P?0.13.Type: GrantFiled: December 4, 2006Date of Patent: August 2, 2011Assignee: Denso CorporationInventors: Yoshihide Segawa, Toshiharu Kondo
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Patent number: 7846868Abstract: A honeycomb-shaped substrate for catalyst is made from ceramic, has a straight-flow structure, and includes cellular walls exhibiting pore volumes, which differ partially, and a large number of cellular passages demarcated by the cellular walls. A catalyst for purifying exhaust gases is produced by providing the cellular walls of the honeycomb-shaped substrate with a catalytic coating layer.Type: GrantFiled: June 13, 2007Date of Patent: December 7, 2010Assignees: Toyota Jidosha Kabushiki Kaisha, Denso CorporationInventors: Yusuke Itoh, Toshihiro Takada, Tatsuji Mizuno, Yoshiharu Miyake, Yoshihide Segawa
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Patent number: 7811652Abstract: A formed article is made of cordierite. The cordierite has a plurality of domains and a plurality of crystal grains placed in each domain to form a domain structure. The crystal grains in each domain are substantially aligned in the same direction, and an average size of the domains ranges from 40 ?m to 150 ?m. The article of cordierite is formed in a honeycomb structure having a plurality of cell walls arranged in a honeycomb form, and a plurality of cells divided by the cell walls are formed. The article of cordierite has a porosity ranging from 36% to 38%, a coefficient of linear thermal expansion equal to or lower than 0.2×106/K and a mechanical strength equal to or higher than 60×106 Pa.Type: GrantFiled: March 20, 2009Date of Patent: October 12, 2010Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Kentaro Makino, Kazushige Uchiyama, Yoshihide Segawa, Tomohiko Nakanishi, Yuichi Kobayashi
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Publication number: 20100160158Abstract: A hexagonal-cell honeycomb carrier body, made of cordierite ceramic, for use in a carrier of a catalyst of purifying exhaust gas is disclosed as including a large number of hexagonal cells surrounded with cell walls formed in a hexagonal lattice pattern and a cylindrical skin layer covering outer circumferential sidewalls of the hexagonal cells. The hexagonal-cell honeycomb carrier body has GSA (Geometric Surface Area) of 3.5 mmW or more. A hexagonal-cell honeycomb catalyst body comprises the hexagonal-cell honeycomb carrier body and a catalyst layer which covers a surface of the hexagonal-cell honeycomb carrier body.Type: ApplicationFiled: February 29, 2008Publication date: June 24, 2010Applicants: Denso Corporation, Toyota Jidosha Kabushiki KaishaInventors: Yosiyasu Ando, Yoshihide Segawa, Takeru Yoshida
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Publication number: 20090239741Abstract: A formed article is made of cordierite. The cordierite has a plurality of domains and a plurality of crystal grains placed in each domain to form a domain structure. The crystal grains in each domain are substantially aligned in the same direction, and an average size of the domains ranges from 40 ?m to 150 ?m. The article of cordierite is formed in a honeycomb structure having a plurality of cell walls arranged in a honeycomb form, and a plurality of cells divided by the cell walls are formed. The article of cordierite has a porosity ranging from 36% to 38%, a coefficient of linear thermal expansion equal to or lower than 0.2×106/K and a mechanical strength equal to or higher than 60×106 Pa.Type: ApplicationFiled: March 20, 2009Publication date: September 24, 2009Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Kentaro Makino, Kazushige Uchiyama, Yoshihide Segawa, Tomohiko Nakanishi, Yuichi Kobayashi
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Publication number: 20090149323Abstract: It is to provide a method for producing a monolithic catalyst for exhaust gas purification, which can effectively perform exhaust gas purification in accordance with the shape of an exhaust manifold of a catalytic converter, and to provide a monolithic catalyst. The monolithic catalyst has a catalyst coat layer in the axial center region of a substrate, which includes the axial center of an exhaust pipe and has a lower end corresponding to a projected plane of the cross-section of the exhaust pipe, in an amount larger than in a peripheral region other than the axial center region of the substrate. The process of forming the catalyst coat layer which has this distribution of coating amount comprises maintaining a slurry for forming the catalyst coat layer in an approximately truncated conical shape, bringing one end of the monolithic catalyst substrate into close contact with a horizontal side of the slurry, and sucking once the slurry from the other end of the substrate.Type: ApplicationFiled: December 2, 2008Publication date: June 11, 2009Inventors: Tomoaki SUNADA, Yoshihide Segawa
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Publication number: 20080004174Abstract: A honeycomb-shaped substrate for catalyst is made from ceramic, has a straight-flow structure, and includes cellular walls exhibiting pore volumes, which differ partially, and a large number of cellular passages demarcated by the cellular walls. A catalyst for purifying exhaust gases is produced by providing the cellular walls of the honeycomb-shaped substrate with a catalytic coating layer.Type: ApplicationFiled: June 13, 2007Publication date: January 3, 2008Inventors: Yusuke Itoh, Toshihiro Takada, Tatsuji Mizuno, Yoshiharu Miyake, Yoshihide Segawa
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Publication number: 20070148405Abstract: A hexagonal-cell honeycomb structure having a plurality of cell walls having a hexagonal shape in cross-section and forming a plurality of hexagonal cell passages, and a tubular skin layer surrounding the cell walls, The thickness of the basic cell walls is 140 ?m or less and an inscribed circle diameter Da inscribed at an intersectional portion of the basic cell walls 2 and an cell pitch P having the relationship Da/P?0.13.Type: ApplicationFiled: December 4, 2006Publication date: June 28, 2007Applicant: DENSO CORPORATIONInventors: Yoshihide Segawa, Toshiharu Kondo
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Patent number: 5432179Abstract: A piperazine derivative represented by the following formula: ##STR1## or a pharmaceutically acceptable salt thereof. The compound according to the present invention has strong anti-histaminic and anti-allergic affects and a high degree of safety, and is useful as an anti-histaminic agent, an anti-allergic agent and/or an anti-asthmatic drug. Also disclosed are pharmaceutical compositions containing the compound of formula 1 and a method for the treatment of allergic diseases comprising administering the claimed compound.Type: GrantFiled: December 30, 1993Date of Patent: July 11, 1995Assignee: Zeria Pharmaceutical Co., Ltd.Inventors: Kazuhiro Kumagai, Masaaki Nagasawa, Hidenori Takahashi, Tooru Abe, Takeshi Omata, Yoshihide Segawa