Patents by Inventor Hiroaki Kitanaga

Hiroaki Kitanaga 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: 20220106930
    Abstract: An evaporated fuel processing device may include a flow passage through which evaporated fuel generated in a fuel tank flows; a first adsorbent constituted of activated carbon and arranged in the flow passage for adsorbing the evaporated fuel flowing in the flow passage; and a second adsorbent constituted of a porous metal complex and arranged in the flow passage on a downstream side of the first adsorbent for adsorbing the evaporated fuel having passed through the first adsorbent and flowing in the flow passage on the downstream side of the first adsorbent.
    Type: Application
    Filed: February 6, 2020
    Publication date: April 7, 2022
    Inventors: Masanobu Shinagawa, Hiroaki KITANAGA, Rina KONDO
  • Publication number: 20210317804
    Abstract: A fuel vapor treatment system includes a plurality of adsorbent sections arranged in series and configured to adsorb fuel vapor, a tank port in fluid communication with a fuel tank, a purge port in fluid communication with an engine, an atmospheric port in fluid communication with a surrounding atmosphere, and a constriction plate disposed adjacent to an atmospheric side end of the adsorbent section of the plurality of adsorbent sections that is most proximal the atmospheric port. The constriction plate is positioned adjacent the adsorbent section without an intermediate space formed therebetween. The constriction plate has a plurality of through holes. The total cross-sectional area of the through holes in the constriction plate is smaller than a cross-sectional area of a flow passage in the atmospheric port.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 14, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Hiroaki KITANAGA, Yuya TANIDA
  • Publication number: 20210270216
    Abstract: A fuel vapor processing apparatus includes a casing forming a flow passage, a first adsorption chamber disposed on one end of the flow passage and configured to store a first adsorbent, a fourth adsorption chamber disposed on the other end of the flow passage and configured to store a fourth adsorbent, and a second adsorption chamber and a third adsorption chamber disposed in series between the first adsorption chamber and the fourth adsorption chamber, the second and third adsorption chambers configured to store a second adsorbent and a third adsorbent, respectively. The first adsorption chamber and the fourth adsorption chamber are disposed adjacent to each other so as to allow heat to be exchanged therebetween.
    Type: Application
    Filed: February 2, 2021
    Publication date: September 2, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Hiroaki KITANAGA, Yuya TANIDA, Hiroyuki TAKAHASHI
  • Publication number: 20130037006
    Abstract: An evaporated fuel treating apparatus reduces blow-through of evaporated fuel components from an atmosphere port to an outside and has a fluid circulation passage which includes at one end side a first chamber containing granulated carbon or fractured carbon, and heat storage material and at another end side a second chamber containing granulated carbon or fractured carbon and not having the heat storage material. A delay diffusion chamber is disposed between the first chamber and the second chamber, which does not have activated carbon and the heat storage material therein. An adsorption amount of evaporated fuel of granulated or fractured carbon in the second chamber is set to be not less than 2 vol % and not more than 8 vol % of a total adsorption amount of evaporated fuel of granulated or fractured carbon, and a volume of the delay diffusion chamber is larger than that of the second chamber.
    Type: Application
    Filed: August 3, 2012
    Publication date: February 14, 2013
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Ryuji Kosugi, Toshikuni Kizu, Takashi Kamiya, Hiroaki Kitanaga