Patents by Inventor Katsuji Ikezaki

Katsuji Ikezaki 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).

  • Electric cleaner with minimum noise
    Patent number: 4617034
    Abstract: An electric cleaner incorporates an effective noise suppression arrangement for minimizing the noise generated by the exhaust from the electric air blower. The present invention provides an electric cleaner comprising an air rectifying duct installed on its external surfaces so that the exhaust from the electric air blower can smoothly and quietly pass through it, while the noise emitted by the exhaust can be significantly minimized throughout the vacuum cleaning operation even when using a compact cleaner.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: October 14, 1986
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuji Ikezaki, Kiyoshi Ishii
  • Electric cleaner with minimum noise
    Patent number: 4533370
    Abstract: An electric cleaner incorporates an effective noise suppression arrangement for minimizing the noise generated by the exhaust from the electric air blower. The present invention provides an electric cleaner comprising an air rectifying duct installed on its external surfaces so that the exhaust from the electric air blower can smoothly and quietly pass through it, while the noise emitted by the exhaust can be significantly minimized throughout the vacuum cleaning operation even when using a compact cleaner.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: August 6, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuji Ikezaki, Kiyoshi Ishii