Patents by Inventor Masayosi Inoue

Masayosi Inoue 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).

  • Air cleaner having vanes with a winglike cross-section between a shroud and baseplate for rotation within a housing
    Patent number: 6156090
    Abstract: An air cleaner includes a housing having an upper wall and side walls, an air filter mounted with respect to the housing, a fan including a vane-wheel having a plurality of vanes, a supporting plate extending substantially between at least two side walls for supporting the fan. An air flow directional member directs an air flow output from the fan. The vane is formed to have a winglike cross-section, and the vane-wheel includes not more than four vanes. The vane-wheel has a base plate and a shroud. Each of the base plate and the shroud is formed to have a reinforcement portion on its circumference. A U-shaped balance weight is attached to a flattened portion formed on the curled portion. The air cleaner of the present invention can reduce noise and vibration and improve efficiency of the fan.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: December 5, 2000
    Assignees: Hitachi, Ltd., Hitachi Techno Engineering Co., Ltd.
    Inventors: Tominori Ishikawa, Yuji Toyama, Makoto Yokoyama, Yoshihiro Takada, Keiichi Honma, Osamu Kawasaki, Masayosi Inoue, Kazunari Sugai, Jun Tazawa