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).

  • Patent number: 11156406
    Abstract: 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: Grant
    Filed: August 8, 2019
    Date of Patent: October 26, 2021
    Assignee: DENSO CORPORATION
    Inventors: Kazutaka Suzuki, Taichi Asano
  • Publication number: 20210293493
    Abstract: 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: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Inventors: Akira HIRANO, Taichi ASANO
  • Publication number: 20210270548
    Abstract: 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: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Applicant: DENSO CORPORATION
    Inventors: Kazutaka SUZUKI, Taichi ASANO, Shota TERACHI, Akira HIRANO
  • Publication number: 20210025661
    Abstract: 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: Application
    Filed: October 15, 2020
    Publication date: January 28, 2021
    Inventors: Kazutaka SUZUKI, Taichi ASANO
  • Publication number: 20200408134
    Abstract: 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: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Inventors: Taichi ASANO, Ryoichi SANADA, Akira YAMANAKA
  • Patent number: 10688601
    Abstract: 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: Grant
    Filed: July 8, 2016
    Date of Patent: June 23, 2020
    Assignees: DENSO CORPORATION, UACJ CORPORATION
    Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
  • Patent number: 10625379
    Abstract: 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: Grant
    Filed: July 8, 2016
    Date of Patent: April 21, 2020
    Assignee: UACJ Corporation
    Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
  • Publication number: 20190360757
    Abstract: 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: Application
    Filed: August 8, 2019
    Publication date: November 28, 2019
    Inventors: Kazutaka SUZUKI, Taichi ASANO
  • Publication number: 20190346211
    Abstract: 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: Application
    Filed: July 29, 2019
    Publication date: November 14, 2019
    Inventors: Taichi ASANO, Kazutaka SUZUKI, Toshio UTSUMI, Yuri MIWADA
  • Publication number: 20190337043
    Abstract: 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: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Kenichi KACHI, Hisashi KOBAYASHI, Sachi ONAGA, Kazuhiro MITSUKAWA, Yoshinori SAKIMOTO, Taichi ASANO, Kazutaka SUZUKI
  • Patent number: 10443484
    Abstract: 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: Grant
    Filed: June 9, 2015
    Date of Patent: October 15, 2019
    Assignee: DENSO CORPORATION
    Inventors: Taichi Asano, Takashi Yasuda
  • Patent number: 10060338
    Abstract: 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: Grant
    Filed: January 12, 2015
    Date of Patent: August 28, 2018
    Assignee: DENSO CORPORATION
    Inventors: Masaki Harada, Akira Yamanaka, Masafumi Saitou, Takashi Yasuda, Taichi Asano
  • Publication number: 20180193960
    Abstract: 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: Application
    Filed: July 8, 2016
    Publication date: July 12, 2018
    Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
  • Publication number: 20180193961
    Abstract: 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: Application
    Filed: July 8, 2016
    Publication date: July 12, 2018
    Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
  • Publication number: 20180023898
    Abstract: 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: Application
    Filed: February 29, 2016
    Publication date: January 25, 2018
    Inventors: Masafumi SAITOU, Akira YAMANAKA, Masaki HARADA, Kenji YAMADA, Kazutaka SUZUKI, Taichi ASANO, Shota TERACHI
  • Publication number: 20170204780
    Abstract: 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: Application
    Filed: June 9, 2015
    Publication date: July 20, 2017
    Inventors: Taichi ASANO, Takashi YASUDA
  • Publication number: 20160326949
    Abstract: 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: Application
    Filed: January 12, 2015
    Publication date: November 10, 2016
    Inventors: Masaki HARADA, Akira YAMANAKA, Masafumi SAITOU, Takashi YASUDA, Taichi ASANO
  • Publication number: 20080105416
    Abstract: A cooling heat exchanger has first and second heat transfer plates joined to each other. Each of the first and second heat transfer plates has protrusions protruding from a base portion thereof for defining internal fluid passages, a fin portion projecting from the base portion in the same direction as the protrusions and defining a fin inner space, and an aperture on the base portion at a position corresponding to the fin portion. The fin portion includes an offset wall that is offset from the base portion and connected to the base portion at two positions. The aperture of the first heat transfer plate is displaced from the aperture of the second heat transfer plate with respect to a longitudinal direction of the protrusions so that a communication channel that allows communication between the fin inner spaces of the first and second heat transfer plates is provided for draining condensation.
    Type: Application
    Filed: November 1, 2007
    Publication date: May 8, 2008
    Applicant: DENSO Corporation
    Inventors: Yoshiki Katoh, Taichi Asano