Patents by Inventor Mikio Yagi

Mikio Yagi 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: 6189180
    Abstract: A suction tool for an electric vacuum cleaner includes: a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port, to the vacuum cleaner body; and a movable brush which is provided inside the suction inflow passage formed in the suction tool body and is driven by a driver device. In this tool, the movable brush sways and reciprocates back and forth about a support shaft, perpendicular to the direction of the suction inflow stream. Alternatively, the tool may have a linear motor which operates so as to reciprocate a rod which is liked at one end of it with oscillatory plate pivoted inside the suction tool. Further, this movable brush may be formed of a unit which is composed of a sweeping member having a pair of front and rear sweeping parts and a moving brushing part embedded in between, wherein the front sweeping part is shorter than the rear sweeping part.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: February 20, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shigenori Hato, Mikio Yagi, Noriaki Miyoshi, Kiyoshi Ishii, Yuji Ohnishi
  • Patent number: 5901411
    Abstract: A suction tool for an electric vacuum cleaner includes: a suction tool body which is connected to the vacuum cleaner body and has a suction inflow passage therein for conducting a suction air stream from a suction port, to the vacuum cleaner body; and a movable brush which is provided inside the suction inflow passage formed in the suction tool body and is driven by a driver device. In this tool, the movable brush sways and reciprocates back and forth about a support shaft, perpendicular to the direction of the suction inflow stream. Alternatively, the tool may have a linear motor which operates so as to reciprocate a rod which is liked at one end of it with oscillatory plate pivoted inside the suction tool. Further, this movable brush may be formed of a unit which is composed of a sweeping member having a pair of front and rear sweeping parts and a moving brushing part embedded in between, wherein the front sweeping part is shorter than the rear sweeping part.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: May 11, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shigenori Hato, Mikio Yagi, Noriaki Miyoshi, Kiyoshi Ishii, Yuji Ohnishi
  • Patent number: 5557822
    Abstract: An electric vacuum cleaner having a suction nozzle comprising a dust inlet formed in a bottom surface of a nozzle body and a rotary brush rotatably mounted therein along said dust inlet, wherein said electric vacuum cleaner having either or both of configurations that said nozzle body has a flexible member mounted to a front wall thereof to rotate back and forth corresponding to the backward and forward movement of said nozzle body so that the flexible member comes in contact with a floor to cover a lower portion of said front wall, and that said nozzle body has a sliding piece slidably mounted on at least one of side walls thereof to open and close the side face corresponding to the backward and forward movement of said nozzle body.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: September 24, 1996
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mikio Yagi, Hiroshi Mikami, Taichi Tamura
  • Patent number: 4811448
    Abstract: A cleaning device for a container such as a glass comprises a base, first and second pillars standing from the base, first and second cleaning bodies carried by the first and second pillars, and a third pillar standing from the base in a vicinity of the first cleaning body and extending along the first cleaning body. In use, the container such as a glass is mounted on the cleaning device in such a manner that the inner surface of a wall portion of the container is supported by the first pillar and the outer wall of the diametrically opposing wall portion of the container is supported by the second pillar. The third pillar urges the outer surface of the first mentioned wall portion in the direction of the first pillar and thereby the inner surface and outer surface of the container are pressed against the first and second cleaning bodies.
    Type: Grant
    Filed: October 8, 1987
    Date of Patent: March 14, 1989
    Inventor: Mikio Yagi