Patents by Inventor Tsukasa HOSHINO
Tsukasa HOSHINO 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: 20220314359Abstract: In a vehicle body structure, an end portion of a first vehicle body member having a plate shape is coupled to a second vehicle body member having a plate shape. The first vehicle body member is made of a first metal and the second vehicle body member is made of a second metal. The vehicle body structure includes a third vehicle body member made of the first metal. The third vehicle body member includes an interposed portion having general portions and a convex portion. The convex portion has a weld-joint portion configured to be joined to the end portion of the first vehicle body member by welding. Each of the general portion has a swage-joint portion configured to be swaged and jointed to the second vehicle body member in a circular shape viewed from a thickness direction, and a cutout portion.Type: ApplicationFiled: February 17, 2022Publication date: October 6, 2022Inventors: Shuichi Nakagawa, Keisuke Yokota, Tsukasa Hoshino
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Patent number: 11208946Abstract: A determination is made whether or not the condition that the amount V of condensed water remaining in an intake passage has exceeded a predetermined upper limit has been met, based on an input parameter associated with the amount V. If, during an engine operation in an unsupercharged mode, a determination is made that the condition has been met, a condensed water discharging operation of a supercharger is performed such that the condensed water remaining is discharged to a cylinder of the engine through operation of the supercharger.Type: GrantFiled: October 12, 2018Date of Patent: December 28, 2021Assignee: Mazda Motor CorporationInventors: Kouichi Shimizu, Tsukasa Hoshino, Ken Yoshida, Hirofumi Shinohara
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Patent number: 10900411Abstract: The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.Type: GrantFiled: August 25, 2017Date of Patent: January 26, 2021Assignee: Mazda Motor CorporationInventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Mitsunori Wasada, Mitsutaka Yamaya, Hisayuki Yamane, Yoshihiro Hamazume, Shuhei Tsujita, Hirofumi Shinohara, Eiji Takano, Tatsuya Koga, Tsukasa Hoshino, Masafumi Nakano, Kouichi Shimizu, Jiro Kato, Taketoshi Yamauchi
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Publication number: 20200370468Abstract: A determination is made whether or not the condition that the amount V of condensed water remaining in an intake passage has exceeded a predetermined upper limit has been met, based on an input parameter associated with the amount V. If, during an engine operation in an unsupercharged mode, a determination is made that the condition has been met, a condensed water discharging operation of a supercharger is performed such that the condensed water remaining is discharged to a cylinder of the engine through operation of the supercharger.Type: ApplicationFiled: October 12, 2018Publication date: November 26, 2020Inventors: Kouichi SHIMIZU, Tsukasa HOSHINO, Ken YOSHIDA, Hirofumi SHINOHARA
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Publication number: 20200370467Abstract: The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.Type: ApplicationFiled: August 25, 2017Publication date: November 26, 2020Inventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Mitsunori Wasada, Mitsutaka Yamaya, Hisayuki Yamane, Yoshihiro Hamazume, Shuhei Tsujita, Hirofumi Shinohara, Eiji Takano, Tatsuya Koga, Tsukasa Hoshino, Masafumi Nakano, Kouichi Shimizu, Jiro Kato, Taketoshi Yamauchi
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Patent number: 10669918Abstract: A heat insulating structure of an internal combustion engine (engine 1) includes a cylinder-head-side heat insulating cover (30) and a cylinder-block-side heat insulating cover (40). Each of the first side walls (32) of the cylinder-head-side heat insulating cover (30) is disposed outwardly of, and is spaced apart from, a corresponding one of the second side walls (43) of the cylinder-block-side heat insulating cover (40) in the width direction of the vehicle. The lower edge of each of the first side walls (32) is positioned below the upper edge of the corresponding one of the second side walls (43) to overlap with the corresponding one of the second side walls (43) when viewed from the side of the vehicle.Type: GrantFiled: March 6, 2017Date of Patent: June 2, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Tsukasa Hoshino, Kenji Sugasaki, Kazumi Okamura, Makoto Shinhama, Masanobu Koutoku, Ryo Yamamoto, Yukiya Tanaka, Toshimichi Nishikawa
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Patent number: 10266128Abstract: A heat insulating cover (cylinder-head-side heat insulating cover (30)) includes a top wall (31) and first side walls (32). The top wall (31) covers a top surface of an engine (1) that is a surface of an upper portion of the engine (1). The first side walls (32) cover respective upper portions of both side surfaces of the engine (1) in a vehicle width direction. A portion of the heat insulating cover closer to the rear of the vehicle is provided with a hinge mechanism (36) vertically rotatably supporting the upper portion of the heat insulating cover including the top wall (31). The upper portion of the heat insulating cover can be rotated, with the hinge mechanism (36) as a fulcrum, between a closed position where the engine (1) is shielded and an open position where the engine (1) is visible.Type: GrantFiled: March 8, 2017Date of Patent: April 23, 2019Assignee: MAZDA MOTOR CORPORATIONInventors: Tsukasa Hoshino, Kenji Sugasaki, Kazumi Okamura, Makoto Shinhama, Masanobu Koutoku, Ryo Yamamoto, Yukiya Tanaka, Toshimichi Nishikawa
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Patent number: 10233832Abstract: An exhaust purification device of a multi-cylinder engine which improves exhaust gas purification performance by substantially uniforming a flow rate of exhaust gas throughout a treatment carrier such as a catalyst and improving dispersibility of the exhaust gas from the multi-cylinder engine to the catalyst and other components in the exhaust purification device wherein two collecting pipes are arranged at substantially symmetric positions across a partition plate part, which has a linear cross sectional shape, and is arranged centrally between the pipes which are each formed into D-shaped cross sectional shapes and comprise a first straight line part, a pair of second straight line parts connected with respective ends of a first straight line part and arranged to be substantially parallel with each other, and a circular arc part that connects ends of a pair of second straight line parts on opposite sides of the first straight line part.Type: GrantFiled: August 13, 2015Date of Patent: March 19, 2019Assignee: Mazda Motor CorporationInventors: Hiroki Shimoji, Tsukasa Hoshino, Ryo Yamamoto, Haruna Yanagida, Koji Endo
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Publication number: 20190048779Abstract: A heat insulating structure of an internal combustion engine (engine 1) includes a cylinder-head-side heat insulating cover (30) and a cylinder-block-side heat insulating cover (40). Each of the first side walls (32) of the cylinder-head-side heat insulating cover (30) is disposed outwardly of, and is spaced apart from, a corresponding one of the second side walls (43) of the cylinder-block-side heat insulating cover (40) in the width direction of the vehicle. The lower edge of each of the first side walls (32) is positioned below the upper edge of the corresponding one of the second side walls (43) to overlap with the corresponding one of the second side walls (43) when viewed from the side of the vehicle.Type: ApplicationFiled: March 6, 2017Publication date: February 14, 2019Applicant: MAZDA MOTOR CORPORATIONInventors: Tsukasa HOSHINO, Kenji SUGASAKI, Kazumi OKAMURA, Makoto SHINHAMA, Masanobu KOUTOKU, Ryo YAMAMOTO, Yukiya TANAKA, Toshimichi NISHIKAWA
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Publication number: 20180244216Abstract: A heat insulating cover (cylinder-head-side heat insulating cover (30)) includes a top wall (31) and first side walls (32). The top wall (31) covers a top surface of an engine (1) that is a surface of an upper portion of the engine (1). The first side walls (32) cover respective upper portions of both side surfaces of the engine (1) in a vehicle width direction. A portion of the heat insulating cover closer to the rear of the vehicle is provided with a hinge mechanism (36) vertically rotatably supporting the upper portion of the heat insulating cover including the top wall (31). The upper portion of the heat insulating cover can be rotated, with the hinge mechanism (36) as a fulcrum, between a closed position where the engine (1) is shielded and an open position where the engine (1) is visible.Type: ApplicationFiled: March 8, 2017Publication date: August 30, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Tsukasa HOSHINO, Kenji SUGASAKI, Kazumi OKAMURA, Makoto SHINHAMA, Masanobu KOUTOKU, Ryo YAMAMOTO, Yukiya TANAKA, Toshimichi NISHIKAWA
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Publication number: 20160061089Abstract: An exhaust purification device of a multi-cylinder engine which improves exhaust gas purification performance by substantially uniforming a flow rate of exhaust gas throughout a treatment carrier such as a catalyst and improving dispersibility of the exhaust gas from the multi-cylinder engine to the catalyst and other components in the exhaust purification device wherein two collecting pipes are arranged at substantially symmetric positions across a partition plate part, which has a linear cross sectional shape, and is arranged centrally between the pipes which are each formed into D-shaped cross sectional shapes and comprise a first straight line part, a pair of second straight line parts connected with respective ends of a first straight line part and arranged to be substantially parallel with each other, and a circular arc part that connects ends of a pair of second straight line parts on opposite sides of the first straight line part.Type: ApplicationFiled: August 13, 2015Publication date: March 3, 2016Inventors: Hiroki Shimoji, Tsukasa Hoshino, Ryo Yamamoto, Haruna Yanagida, Koji Endo
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Patent number: 8857899Abstract: There is provided a vehicle. The vehicle of a first aspect of the present invention includes a main frame constituted by a structure in which an outer member and an inner member are connected to each other. A reinforcing member (reinforcement pillar center outers) made of reinforced plastics is interposed between the outer member and the inner member. The vehicle of a second aspect of the present invention includes a plurality of members. One (a pillar center inner) of at least two members (for example, a pillar center inner and a panel side outer) connected to each other is made of reinforced plastics.Type: GrantFiled: March 14, 2013Date of Patent: October 14, 2014Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Hiroshi Matsuda, Jun Watanabe, Tsukasa Hoshino
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Publication number: 20130257098Abstract: There is provided a vehicle. The vehicle of a first aspect of the present invention includes a main frame constituted by a structure in which an outer member and an inner member are connected to each other. A reinforcing member (reinforcement pillar center outers) made of reinforced plastics is interposed between the outer member and the inner member. The vehicle of a second aspect of the present invention includes a plurality of members. One (a pillar center inner) of at least two members (for example, a pillar center inner and a panel side outer) connected to each other is made of reinforced plastics.Type: ApplicationFiled: March 14, 2013Publication date: October 3, 2013Applicant: FUJI JUKOGYO KABUSHIKI KAISHAInventors: Hiroshi MATSUDA, Jun WATANABE, Tsukasa HOSHINO