Patents by Inventor Yoshihiko Sonoda

Yoshihiko Sonoda 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).

  • Publication number: 20210394311
    Abstract: A brazing sheet (1) includes a core material (11) composed of an Al alloy that contains 0.20-3.0 mass % of Mg; and a filler material (12) layered on the core material and composed of an Al alloy that contains Mg, 6.0-13.0 mass % of Si, and more than 0.050 mass % and 1.0 mass % or less of Bi. The Mg concentration of the filler material becomes continuously lower in a direction from a boundary (122) with the core material to an outermost surface (121). The Mg concentration of the filler material is 0.150 mass % or less at a first depth from the outermost surface that is ? of a thickness (tf) of the filler material and is 5-90% of the amount of Mg in the core material at a second depth from the outermost surface that is ? of the thickness of the filler material.
    Type: Application
    Filed: September 27, 2019
    Publication date: December 23, 2021
    Inventors: Shinichi NAKAMURA, Tomoki YAMAYOSHI, Takeyoshi DOKOU, Takahiro SHINODA, Shogo YAMADA, Yoshihiko SONODA, Naoki SUGIMOTO, Nobuhiro HONMA, Taketoshi TOYAMA
  • Patent number: 7413002
    Abstract: In a corrugated fin which is formed and bent into a wave-form, a plurality of both-side-cut-louvers 8, which are laminated on each other and formed into a group, and one-side-cut-louvers 7, which are arranged at end portions of the group of both-side-cut-louvers 8, are formed being raised, and a cross-section in the louver laminating direction of at least one of the one-side-cut-louvers 7 is formed into a substantial V-shape. An inclined face 70 of the one-side-cut-louver 7 adjoining the both-side-cut-louver 8 is made to cross a centerline in the fin thickness direction and a length of the inclined face 70 is made to be the same as that of the inclined face of the adjoining both-side-cut-louver 8.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: August 19, 2008
    Assignee: Denso Corporation
    Inventors: Toshihide Ninagawa, Yuuji Sako, Yoshihiko Sonoda
  • Patent number: 7310961
    Abstract: A heat exchange portion is configured by arranging a condenser for air conditioning, an EV radiator, and a FC radiator in one plane substantially perpendicular to a direction in which a fuel cell vehicle moves, at a front portion of the fuel cell vehicle, in order of an operating temperature, from an upper position to a lower position. A fan is provided behind the heat exchange portion such that a center thereof is closer to the condenser than to the FC radiator. In addition, a fan shroud is provided, in which plural ram pressure holes are formed in a portion which covers the FC radiator.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: December 25, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Jun Hoshi, Minobu Mizuno, Mitsuru Kimata, Susumu Ichikawa, Keiichi Yoshii, Akira Yamanaka, Yoshihiko Sonoda, Hiroshi Nonoyama
  • Publication number: 20070187080
    Abstract: A heat exchanger has a tank and a core including a plurality of tubes stacked in a longitudinal direction of the tank and in communication with the tank. The heat exchanger further has an inlet port for introducing a fluid into the tank and a first projection on an inner wall of the tank at a position where the fluid flowing from the inlet port hits on. The first projection is configured to change a flow direction of the fluid flowing from the inlet port in the longitudinal direction of the tank. For example, the first projection projects from the inner wall of the tank toward the inlet port in a form of substantially wedge.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 16, 2007
    Applicant: DENSO Corporation
    Inventors: Yoshihiko Sonoda, Toshihide Ninagawa, Tatsuo Ozaki
  • Publication number: 20070137840
    Abstract: In a corrugated fin which is formed and bent into a wave-form, a plurality of both-side-cut-louvers 8, which are laminated on each other and formed into a group, and one-side-cut-louvers 7, which are arranged at end portions of the group of both-side-cut-louvers 8, are formed being raised, and a cross-section in the louver laminating direction of at least one of the one-side-cut-louvers 7 is formed into a substantial V-shape. An inclined face 70 of the one-side-cut-louver 7 adjoining the both-side-cut-louver 8 is made to cross a centerline in the fin thickness direction and a length of the inclined face 70 is made to be the same as that of the inclined face of the adjoining both-side-cut-louver 8.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 21, 2007
    Applicant: DENSO Corporation
    Inventors: Toshihide Ninagawa, Yuuji Sako, Yoshihiko Sonoda
  • Patent number: 7207377
    Abstract: A heat exchanger having a plurality of stacked tubes (131) and tanks (110, 120) formed of resin and coupled to the longitudinal ends of the tubes (131), wherein the cooling liquid flowing in a fuel-cell (10) is cooled by being passed through the tubes (131) formed of double layers including a high heat conductivity resin portion (131a) and an insulative resin portion (131b).
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 24, 2007
    Assignee: DENSO Corporation
    Inventors: Yoshihiko Sonoda, Hiroyuki Osakabe, Masahiro Omae
  • Publication number: 20060201666
    Abstract: A heat exchanger having a plurality of stacked tubes (131) and tanks (110, 120) formed of resin and coupled to the longitudinal ends of the tubes (131), wherein the cooling liquid flowing in a fuel-cell (10) is cooled by being passed through the tubes (131) formed of double layers including a high heat conductivity resin portion (131a) and an insulative resin portion (131b).
    Type: Application
    Filed: March 7, 2006
    Publication date: September 14, 2006
    Applicant: DENSO Corporation
    Inventors: Yoshihiko Sonoda, Hiroyuki Osakabe, Masahiro Omae
  • Publication number: 20050279113
    Abstract: A heat exchange portion is configured by arranging a condenser for air conditioning, an EV radiator, and a FC radiator in one plane substantially perpendicular to a direction in which a fuel cell vehicle moves, at a front portion of the fuel cell vehicle, in order of an operating temperature, from an upper position to a lower position. A fan is provided behind the heat exchange portion such that a center thereof is closer to the condenser than to the FC radiator. In addition, a fan shroud is provided, in which plural ram pressure holes are formed in a portion which covers the FC radiator.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 22, 2005
    Inventors: Jun Hoshi, Minobu Mizuno, Mitsuru Kimata, Susumu Ichikawa, Keiichi Yoshii, Akira Yamanaka, Yoshihiko Sonoda, Hiroshi Nonoyama
  • Publication number: 20050236147
    Abstract: A heat exchanger for cooling a fuel cell is provided with multiple fins, multiple tubes which are laminated and separated from each other by the fin, and at least two tanks which are communicated with the tubes at longitudinal-direction ends of the tubes. Cooling water is circulated to flow through the tubes, the tanks and the fuel cell. The tanks and the tubes are made of resin, while the fins are made of metal. Thus, cooling water which carries electricity can be electrically insulated from the externals by the tanks and the tubes, while the cooling capacity of the heat exchanger can be satisfactorily maintained.
    Type: Application
    Filed: April 19, 2005
    Publication date: October 27, 2005
    Applicant: DENSO Corporation
    Inventors: Yoshihiko Sonoda, Takaki Okochi
  • Publication number: 20040244954
    Abstract: A heat exchanger includes plural laminated tubes through which a coolant from a fuel cell flows, fins arranged between the tubes and at outermost sides in a lamination direction of the tubes, core plates connected to longitudinal end portions of the tubes, and tank members attached to the core plates to form tank spaces. The tubes are made of a first insulating material, and the fins and the core plates are bonded to the tubes by using metal parts provided separately from each other on surfaces of the tubes. In addition, a coating portion is coated with a second insulating material on surfaces of the core plates at least at an exposed position of the core plates and at positions around brazing portions of the core plate bonded to the tubes. Accordingly, the heat exchanger can be insulated from the fuel cell without using an electrical insulating liquid.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Inventors: Tetsuya Goto, Takaki Okochi, Yoshihiko Sonoda, Atsushi Hayasaka
  • Patent number: 5312230
    Abstract: An axial flow fan device capable of reducing the stagnant flow at the root area of blades. These blades 18 are arranged so that they extend radially from a boss portion 14 so that they are circumferentially spaced along the circumference of the boss portion 14. Each of the blades 18 has an arc shaped cross section having a bending ratio value .alpha., that is a ratio of the bending height h of the arc shape to the length l of the chord of the arc shape. The value of the bending ratio rapidly increases from the middle portion of the blade to the root portion. The value of the bending ratio at the root portion is about 12%.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: May 17, 1994
    Assignee: Nippondenso Co., Ltd.
    Inventors: Siniti Oda, Shuji Komoda, Yoshihiko Sonoda