Patents by Inventor Takemitu Okuma

Takemitu Okuma 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).

  • Floor nozzle for electric cleaner
    Patent number: 4901394
    Abstract: A floor nozzle for vacuum cleaner comprising: a floor nozzle body in which an agitator and a drive source are incorporated, the agitator includes a rotor provided on its outer peripheral surface with flexible lips made of polyurethane rubber added with talc as a reinforcing agent so as to have a rubber hardness of 50 to 70, and blended with 0.1 to 0.5% of a coloring agent.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: February 20, 1990
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuo Nakamura, Yoshitaka Murata, Hiroshi Kawakami, Takemitu Okuma