Patents by Inventor Gorou Sasai

Gorou Sasai 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).

  • Vacuum Cleaner
    Patent number: 5214822
    Abstract: A vacuum cleaner includes a cleaner body to which an intake hose is connectable, traveling members for enabling the traveling of the cleaner body, and an obstacle-escaping angularly-movable member angularly movably mounted on the cleaner body. A dust collector chamber is formed in a front portion of the cleaner body, and an electrically-operated fan is mounted in a rear portion of the cleaner body. The angularly-movable member is so arranged as to be angularly movable around an outer wall of the dust collector chamber. A portion of the angularly-movable member projects outwardly from the front face of the cleaner body and the front side portions of the cleaner body.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: June 1, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Sakurai, Gorou Sasai, Kouiti Sagawa
  • Electric cleaner, method for producing same and mount base and bumper for electric cleaner
    Patent number: 5144716
    Abstract: An electric cleaner is provided with a moving mechanism for avoiding or escaping an obstacle so as to turn and move a cleaner body when the cleaning body collides with the obstacle. According to the electric cleaner, even if the cleaner body is collided with the obstacle, it is easy to escape or avoid away from the obstacle to ensure a smooth travel of the cleaner body while preventing an overturn of the cleaner.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: September 8, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Syuji Watanabe, Kouiti Sagawa, Gorou Sasai, Hidetoshi Sakurai
  • Vacuum cleaner
    Patent number: 5134749
    Abstract: A vacuum cleaner includes a cleaner body to which an intake hose is connectable, traveling members for enabling the traveling of the cleaner body, and an obstacle-escaping angularly-movable member angularly movably mounted on the cleaner body. A dust collector chamber is formed in a front portion of the cleaner body, and an electrically-operated fan is mounted in a rear portion of the cleaner body. The angularly-movable member is so arranged as to be angularly movable around an outer wall of the dust collector chamber. A portion of the angularly-movable member projects outwardly from the front face of the cleaner body and the front side portions of the cleaner body.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: August 4, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Hidetoshi Sakurai, Gorou Sasai, Kouiti Sagawa