Patents Assigned to Yamato Giken Kabushiki Kaisha
  • Outboard motor having air suction device
    Patent number: 7306498
    Abstract: An outboard motor having an air suction device comprising a main part having an engine, a top cover mounted on a top portion of the main part, the top cover being composed of a main cover having an air space surrounding an outer surface of the engine and of an auxiliary cover which is provided on the main cover so as to cover the main cover and to form an air suction room therein, an opening provided on the main cover so as to communicate between the air space in the main cover and the air suction room in the auxiliary cover, an air suction port provided on the auxiliary cover so as to communicate the air suction room in the auxiliary cover to atmosphere, and a water proof sheet mounted in the auxiliary cover in order to cover the opening.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: December 11, 2007
    Assignee: Yamato Giken Kabushiki Kaisha
    Inventor: Toshiyuki Inoue
  • Air filter for engine
    Patent number: 6797024
    Abstract: An air filter for an engine has an air suction box, and a filter element for dividing the air suction box into an upstream side of an air current and a downstream side of the air current, the upstream side of the suction box being communicated with atmosphere through a suction cylinder of relatively large diameter and an air exhaust cylinder of relatively small diameter, both cylinders being arranged coaxially with each other through a small air space. The air suction box is composed of one half portion and the other half portion connected to each other through the filter element, the air suction cylinder is provided in the one half portion, and the air exhaust cylinder is provided in the other half portion.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: September 28, 2004
    Assignee: Yamato Giken Kabushiki Kaisha
    Inventor: Toshiyuki Inoue
  • Air suction device for use in surface boat
    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
  • Air filter for engine
    Publication number: 20030115842
    Abstract: An air filter for an engine has an air suction box, and a filter element for dividing the air suction box into an upstream side of an air current and a downstream side of the air current, the upstream side of the suction box being communicated with atmosphere through a suction cylinder of relatively large diameter and an air exhaust cylinder of relatively small diameter, both cylinders being arranged coaxially with each other through a small air space. The air suction box is composed of one half portion and the other half portion connected to each other through the filter element, the air suction cylinder is provided in the one half portion, and the air exhaust cylinder is provided in the other half portion.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 26, 2003
    Applicant: Yamato Giken Kabushiki Kaisha
    Inventor: Toshiyuki Inoue
  • Air suction device for use in surface boat
    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