Patents by Inventor Taichi Asano
Taichi Asano 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: 11897022Abstract: A fin according to the present disclosure is a corrugated fin formed of a metal plate by bending into a corrugated shape, and the corrugated fin includes peak portions extending in a first direction, valley portions extending in the first direction, and inclined portions connecting the peak portions and the valley portions adjacent to each other. The peak portions and the valley portions are alternately arranged in a second direction perpendicular to the first direction, and a thickness of the metal plate at each apex of the peak portions and the valley portions is larger than a thickness of the inclined portions of the metal plate.Type: GrantFiled: July 17, 2019Date of Patent: February 13, 2024Assignee: DENSO CORPORATIONInventors: Kenichi Kachi, Hisashi Kobayashi, Sachi Onaga, Kazuhiro Mitsukawa, Yoshinori Sakimoto, Taichi Asano, Kazutaka Suzuki
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Patent number: 11898811Abstract: A heat exchanger includes: a heat exchange core portion; and a tank portion connected to the heat exchange core portion. The heat exchange core portion has a connection plate that surrounds a part of the tank portion from an outer peripheral side. The connection plate has slit-shaped openings arranged along an edge of the connection plate in a first direction. A part of the connection plate between each of the openings and the edge is deformable into a concave shape toward the tank portion. A part of the openings has a widened portion at both ends in the first direction. A width dimension of the widened portion in a second direction from the opening to the edge is larger than that of the other portion of the opening.Type: GrantFiled: June 7, 2021Date of Patent: February 13, 2024Assignee: DENSO CORPORATIONInventors: Akira Hirano, Taichi Asano
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Patent number: 11530884Abstract: A heat exchanger includes a duct, a core portion, and a caulking plate. The duct has an inlet and an outlet. The core portion is housed in the duct in a state where cooling plates and cooling fins are stacked in a stacking direction. The caulking plate has a frame shape corresponding to an opening shape of the inlet and the outlet and brazed to the inlet and the outlet. The caulking plate is interposed between the duct and a tank to fix the tank. A first joint between the duct and the core portion and a second joint between the duct and the caulking plate are distanced from each other in the stacking direction by a predetermined distance. The duct has a rib between the first joint and the second joint or at the second joint.Type: GrantFiled: October 15, 2020Date of Patent: December 20, 2022Assignee: DENSO CORPORATIONInventors: Kazutaka Suzuki, Taichi Asano
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Patent number: 11313623Abstract: A heat exchanger includes a duct, a stacked core, and a coupling plate. The duct includes a first plate that is disposed to face at least one of end faces of the stacked core in a core width direction, and a second plate that is disposed to face at least one of the end faces of the stacked core in a tube stacking direction. The second plate includes a second-plate end plate portion disposed to face the end face of the stacked core in the core width direction and brazed to a wall surface of the first plate, a second-plate center plate portion that is disposed to face the end face of the stacked core in the tube stacking direction, and a flange portion that extends in the tube stacking direction and is brazed to a bottom wall surface of a groove portion of the coupling plate.Type: GrantFiled: February 29, 2016Date of Patent: April 26, 2022Assignee: DENSO CORPORATIONInventors: Masafumi Saitou, Akira Yamanaka, Masaki Harada, Kenji Yamada, Kazutaka Suzuki, Taichi Asano, Shota Terachi
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Patent number: 11156406Abstract: A heat exchanger includes a plurality of cooling plates, a duct plate disposed around the cooling plates and a spacer plate fixed to both the duct plate and the cooling plate to prevent supercharged air from flowing into a gap between the duct plate and the cooling plate. The cooling plate includes cup portions allowing cooling water flow paths of the corresponding two cooling plates to be in communication with each other when the cooling plate is fixed to the adjacent cooling plate. The cooling water flow path formed in the cooling plate includes flow path portions and formed extending in a direction perpendicular to a flow direction of supercharged air from the corresponding cup portions. The cup portions are each formed in a tubular shape having a central axis at a position offset along the flow direction of the supercharged air from a center of the corresponding one of the flow path portions in a flow path width direction.Type: GrantFiled: August 8, 2019Date of Patent: October 26, 2021Assignee: DENSO CORPORATIONInventors: Kazutaka Suzuki, Taichi Asano
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Publication number: 20210293493Abstract: A heat exchanger includes: a heat exchange core portion; and a tank portion connected to the heat exchange core portion. The heat exchange core portion has a connection plate that surrounds a part of the tank portion from an outer peripheral side. The connection plate has slit-shaped openings arranged along an edge of the connection plate in a first direction. A part of the connection plate between each of the openings and the edge is deformable into a concave shape toward the tank portion. A part of the openings has a widened portion at both ends in the first direction. A width dimension of the widened portion in a second direction from the opening to the edge is larger than that of the other portion of the opening.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Inventors: Akira HIRANO, Taichi ASANO
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Publication number: 20210270548Abstract: A heat exchanger includes a plate member, a fixation member, and a brazing material pathway. The plate member has a first side coated with a brazing material, and a second side which is an opposite side of the first side and is not coated with the brazing material. The fixation member is disposed on the second side and configured to fix a position of a pipe. The brazing material pathway extends from the first side to the second side. The brazing material coated on the plate member spreads into the brazing material pathway. The pipe is inserted into an insertion hole formed in the plate member. An entire outer circumference of the pipe is swaged and engaged with an inner side of the insertion hole. The brazing material pathway is formed on at least the outer circumference of the pipe or the inner side of the insertion hole.Type: ApplicationFiled: May 17, 2021Publication date: September 2, 2021Applicant: DENSO CORPORATIONInventors: Kazutaka SUZUKI, Taichi ASANO, Shota TERACHI, Akira HIRANO
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Publication number: 20210025661Abstract: A heat exchanger includes a duct, a core portion, and a caulking plate. The duct has an inlet and an outlet. The core portion is housed in the duct in a state where cooling plates and cooling fins are stacked in a stacking direction. The caulking plate has a frame shape corresponding to an opening shape of the inlet and the outlet and brazed to the inlet and the outlet. The caulking plate is interposed between the duct and a tank to fix the tank. A first joint between the duct and the core portion and a second joint between the duct and the caulking plate are distanced from each other in the stacking direction by a predetermined distance. The duct has a rib between the first joint and the second joint or at the second joint.Type: ApplicationFiled: October 15, 2020Publication date: January 28, 2021Inventors: Kazutaka SUZUKI, Taichi ASANO
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Publication number: 20200408134Abstract: A reserve tank device includes a first reserve tank, a second reserve tank, a passage switching member, and a gas-liquid separator. The first reserve tank reserves a cooling water flowing through an engine cooling circuit. The second reserve tank reserves a cooling water flowing through an auxiliary machine cooling circuit. The gas-liquid separator is disposed in the first reserve tank and removes bubbles from the cooling water flowing through the first reserve tank.Type: ApplicationFiled: September 11, 2020Publication date: December 31, 2020Inventors: Taichi ASANO, Ryoichi SANADA, Akira YAMANAKA
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Patent number: 10688601Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.Type: GrantFiled: July 8, 2016Date of Patent: June 23, 2020Assignees: DENSO CORPORATION, UACJ CORPORATIONInventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
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Patent number: 10625379Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 ?m in the first brazing filler metal before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 ?m in the first brazing filler metal after brazing heating is at least 300 pieces/mm2. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.Type: GrantFiled: July 8, 2016Date of Patent: April 21, 2020Assignee: UACJ CorporationInventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
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Publication number: 20190360757Abstract: A heat exchanger includes a plurality of cooling plates, a duct plate disposed around the cooling plates and a spacer plate fixed to both the duct plate and the cooling plate to prevent supercharged air from flowing into a gap between the duct plate and the cooling plate. The cooling plate includes cup portions allowing cooling water flow paths of the corresponding two cooling plates to be in communication with each other when the cooling plate is fixed to the adjacent cooling plate. The cooling water flow path formed in the cooling plate includes flow path portions and formed extending in a direction perpendicular to a flow direction of supercharged air from the corresponding cup portions. The cup portions are each formed in a tubular shape having a central axis at a position offset along the flow direction of the supercharged air from a center of the corresponding one of the flow path portions in a flow path width direction.Type: ApplicationFiled: August 8, 2019Publication date: November 28, 2019Inventors: Kazutaka SUZUKI, Taichi ASANO
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Publication number: 20190346211Abstract: A heat exchanger that performs heat exchange between a first fluid and a second fluid includes a first duct plate, a second duct plate, a flow path member, a caulking plate, an insertion projection, and a contact protrusion. The insertion protrusion protrudes from at least one of the first duct plate and the second duct plate toward the caulking plate, and is inserted into an insertion hole defined in the caulking plate. The contact protrusion protrudes from at least one of the first duct plate and the second duct plate toward the caulking plate, and is fixed to, and in contact with, a stopper wall of the caulking plate. A surface of the contact protrusion is in contact with a stopper plane wall when the contact protrusion is fixed to the frame member.Type: ApplicationFiled: July 29, 2019Publication date: November 14, 2019Inventors: Taichi ASANO, Kazutaka SUZUKI, Toshio UTSUMI, Yuri MIWADA
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Publication number: 20190337043Abstract: A fin according to the present disclosure is a corrugated fin formed of a metal plate by bending into a corrugated shape, and the corrugated fin includes peak portions extending in a first direction, valley portions extending in the first direction, and inclined portions connecting the peak portions and the valley portions adjacent to each other. The peak portions and the valley portions are alternately arranged in a second direction perpendicular to the first direction, and a thickness of the metal plate at each apex of the peak portions and the valley portions is larger than a thickness of the inclined portions of the metal plate.Type: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Inventors: Kenichi KACHI, Hisashi KOBAYASHI, Sachi ONAGA, Kazuhiro MITSUKAWA, Yoshinori SAKIMOTO, Taichi ASANO, Kazutaka SUZUKI
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Patent number: 10443484Abstract: In an intake air cooling device, a heat-exchanging core portion in an intercooler has an intake-air downstream-side core portion and an intake-air upstream-side core portion located upstream of the intake-air downstream-side core portion in a flow of intake air. The intake-air downstream-side core portion is located upstream of the intake-air upstream-side core portion in a flow of a cooling fluid. The intercooler has a U-turn portion at which a flow direction of the cooling fluid turns around between the intake-air downstream-side core portion and the intake-air upstream-side core portion. A flow rate control device intermittently supplies the intercooler with a predetermined volume of the cooling fluid at a time. The predetermined volume is a value determined on basis of a volumetric capacity of a cooling fluid channel in the intake-air downstream-side core portion.Type: GrantFiled: June 9, 2015Date of Patent: October 15, 2019Assignee: DENSO CORPORATIONInventors: Taichi Asano, Takashi Yasuda
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Patent number: 10060338Abstract: An intercooler that cools intake air supercharged into an engine by a supercharger by exchanging heat with a cooling medium includes a heat exchange portion in which heat is exchanged between the cooling medium flowing inside a channel tube and the supercharged intake air flowing outside the channel tube. The cooling medium includes a first cooling medium and a second cooling medium hotter than the first cooling medium. The channel tube includes a first cooling medium channel where the first cooling medium flows and a second cooling medium channel where the second cooling medium flows. The channel tube includes a first U-turn portion forcing a flow of the first cooling medium flowing the first cooling medium channel to make a U-turn, and a second U-turn portion forcing a flow of the second cooling medium flowing the second cooling medium channel to make a U-turn.Type: GrantFiled: January 12, 2015Date of Patent: August 28, 2018Assignee: DENSO CORPORATIONInventors: Masaki Harada, Akira Yamanaka, Masafumi Saitou, Takashi Yasuda, Taichi Asano
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Publication number: 20180193961Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 ?m in the first brazing filler metal before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 ?m in the first brazing filler metal after brazing heating is at least 300 pieces/mm2. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.Type: ApplicationFiled: July 8, 2016Publication date: July 12, 2018Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
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Publication number: 20180193960Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.Type: ApplicationFiled: July 8, 2016Publication date: July 12, 2018Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
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Publication number: 20180023898Abstract: A heat exchanger includes a duct, a stacked core, and a coupling plate. The duct includes a first plate that is disposed to face at least one of end faces of the stacked core in a core width direction, and a second plate that is disposed to face at least one of the end faces of the stacked core in a tube stacking direction. The second plate includes a second-plate end plate portion disposed to face the end face of the stacked core in the core width direction and brazed to a wall surface of the first plate, a second-plate center plate portion that is disposed to face the end face of the stacked core in the tube stacking direction, and a flange portion that extends in the tube stacking direction and is brazed to a bottom wall surface of a groove portion of the coupling plate.Type: ApplicationFiled: February 29, 2016Publication date: January 25, 2018Inventors: Masafumi SAITOU, Akira YAMANAKA, Masaki HARADA, Kenji YAMADA, Kazutaka SUZUKI, Taichi ASANO, Shota TERACHI
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Publication number: 20170204780Abstract: In an intake air cooling device, a heat-exchanging core portion in an intercooler has an intake-air downstream-side core portion and an intake-air upstream-side core portion located upstream of the intake-air downstream-side core portion in a flow of intake air. The intake-air downstream-side core portion is located upstream of the intake-air upstream-side core portion in a flow of a cooling fluid. The intercooler has a U-turn portion at which a flow direction of the cooling fluid turns around between the intake-air downstream-side core portion and the intake-air upstream-side core portion. A flow rate control device intermittently supplies the intercooler with a predetermined volume of the cooling fluid at a time. The predetermined volume is a value determined on basis of a volumetric capacity of a cooling fluid channel in the intake-air downstream-side core portion.Type: ApplicationFiled: June 9, 2015Publication date: July 20, 2017Inventors: Taichi ASANO, Takashi YASUDA