Patents by Inventor Mitsuo Itou

Mitsuo Itou 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: 6716263
    Abstract: An air suction device for a surface boat having a filter element of paper type arranged in an air suction passage of an engine. The filter element is composed of a core made of a filter material and a permeable waterproof sheet arranged at the upstream side surface of the core in the air suction passage.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: April 6, 2004
    Assignee: Yamato Giken Kabushiki Kaisha
    Inventors: Toshiyuki Inoue, Mitsuo Itou
  • Publication number: 20020104298
    Abstract: An air suction device for a surface boat having a filter element of paper type arranged in an air suction passage of an engine. The filter element is composed of a core made of a filter material and a permeable waterproof sheet arranged at the upstream side surface of the core in the air suction passage.
    Type: Application
    Filed: January 30, 2002
    Publication date: August 8, 2002
    Applicant: Yamato Giken Kabushiki Kaisha
    Inventors: Toshiyuki Inoue, Mitsuo Itou