Patents by Inventor Kouji Ninomiya

Kouji Ninomiya 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).

  • Cyclonic vacuum cleaner
    Patent number: 6625845
    Abstract: In an electric vacuum cleaner, in a suction air passage provided between a nozzle unit having a nozzle and an electric blower for producing a suction air flow, a separator for separating dust from the suction air flow is arranged. In the separator, a dust collection chamber for collecting the separated dust is provided. The separator is fitted with an exhaust tube having an outlet, fitted with a filter, formed in the peripheral surface thereof so that the suction air flow is exhausted out of the separator through the exhaust tube to the downstream side of the suction air passage. The separator is fitted with a cleaning member having a brush for cleaning the filter. When the cleaning member is moved with the brush keeping contact with the filter, the dust that has settled on the filter is raked off. The cleaning member is moved through manual operation, with a motor, or by the suction air flow.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 30, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yukimichi Matsumoto, Hiroshi Ota, Yuji Onishi, Kenji Kimura, Takayuki Tujii, Masahiro Sato, Kouji Ninomiya, Kazumasa Hayashi
  • Electric vacuum cleaner
    Publication number: 20010025395
    Abstract: In an electric vacuum cleaner, in a suction air passage provided between a nozzle unit having a nozzle and an electric blower for producing a suction air flow, a separator for separating dust from the suction air flow is arranged. In the separator, a dust collection chamber for collecting the separated dust is provided. The separator is fitted with an exhaust tube having an outlet, fitted with a filter, formed in the peripheral surface thereof so that the suction air flow is exhausted out of the separator through the exhaust tube to the downstream side of the suction air passage. The separator is fitted with a cleaning member having a brush for cleaning the filter. When the cleaning member is moved with the brush keeping contact with the filter, the dust that has settled on the filter is raked off. The cleaning member is moved through manual operation, with a motor, or by the suction air flow.
    Type: Application
    Filed: March 23, 2001
    Publication date: October 4, 2001
    Inventors: Yukimichi Matsumoto, Hiroshi Ota, Yuji Onishi, Kenji Kimura, Takayuki Tujii, Masahiro Sato, Kouji Ninomiya, Kazumasa Hayashi