Patents by Inventor Masaru Shindou

Masaru Shindou 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).

  • Nozzle unit for vacuum cleaner
    Patent number: 6742220
    Abstract: A nozzle unit for an electric vacuum cleaner has a body case with a nozzle open toward a surface to be cleaned, a first pipe coupled to the body case so as to be rotatable in the direction, and a second pipe coupled to the first pipe so as to be rotatable in the direction. A first and a second air flow passage, formed inside the first and second pipes respectively, are arranged substantially in a straight line as seen in a side view. The first pipe has a sliding portion that has an arc-shaped cross section and that slides along the inner surface of the body case, and this sliding portion is arranged inside the body case, which is substantially rectangular, as seen in a plan view.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: June 1, 2004
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyomu Nagai, Genji Kosaka, Nobuharu Hikida, Mikio Yagi, Shigenori Hato, Taichi Tamura, Teruhisa Inoue, Kei Ohta, Masaru Shindou
  • Electric vacuum cleaner and nozzle unit therefor
    Publication number: 20030163891
    Abstract: A nozzle unit for an electric vacuum cleaner has a body case 32 with a nozzle 34a open toward a surface to be cleaned, a first pipe 35 coupled to the body case 32 so as to be rotatable in the direction J1, and a second pipe 36 coupled to the first pipe 35 so as to be rotatable in the direction J2. A first and a second air flow passage, formed inside the first and second pipes 35 and 36 respectively, are arranged substantially in a straight line as seen in a side view. The first pipe 35 has a sliding portion 35a that has an arc-shaped cross section and that slides along the inner surface of the body case 32, and this sliding portion 35a is arranged inside the body case 32, which is substantially rectangular, as seen in a plan view.
    Type: Application
    Filed: October 2, 2001
    Publication date: September 4, 2003
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kiyomu Nagai, Genji Kosaka, Nobuharu Hikida, Mikio Yagi, Shigenori Hato, Taichi Tamura, Teruhisa Inoue, Kei Ohta, Masaru Shindou
  • Electric vacuum cleaner and nozzle unit therefor
    Publication number: 20020042969
    Abstract: A nozzle unit for an electric vacuum cleaner has a body case 32 with a nozzle 34a open toward a surface to be cleaned, a first pipe 35 coupled to the body case 32 so as to be rotatable in the direction J1, and a second pipe 36 coupled to the first pipe 35 so as to be rotatable in the direction J2. A first and a second air flow passage, formed inside the first and second pipes 35 and 36 respectively, are arranged substantially in a straight line as seen in a side view. The first pipe 35 has a sliding portion 35a that has an arc-shaped cross section and that slides along the inner surface of the body case 32, and this sliding portion 35a is arranged inside the body case 32, which is substantially rectangular, as seen in a plan view.
    Type: Application
    Filed: October 2, 2001
    Publication date: April 18, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kiyomu Nagai, Genji Kosaka, Nobuharu Hikida, Mikio Yagi, Shigenori Hato, Taichi Tamura, Teruhisa Inoue, Kei Ohta, Masaru Shindou
  • Electric vacuum cleaner and nozzle unit therefor
    Patent number: 6345408
    Abstract: A nozzle unit for an electric vacuum cleaner has a body case 32 with a nozzle 34a open toward a surface to be cleaned, a first pipe 35 coupled to the body case 32 so as to be rotatable in the direction J1, and a second pipe 36 coupled to the first pipe 35 so as to be rotatable in the direction J2. A first and a second air flow passage, formed inside the first and second pipes 35 and 36 respectively, are arranged substantially in a straight line as seen in a side view. The first pipe 35 has a sliding portion 35a that has an arc-shaped cross section and that slides along the inner surface of the body case 32, and this sliding portion 35a is arranged inside the body case 32, which is substantially rectangular, as seen in a plan view.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: February 12, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kiyomu Nagai, Genji Kosaka, Nobuharu Hikida, Mikio Yagi, Shigenori Hato, Taichi Tamura, Teruhisa Inoue, Kei Ohta, Masaru Shindou