Patents by Inventor Hara Keiichi

Hara Keiichi 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).

  • Electrostatic dust precipitators
    Patent number: 4126434
    Abstract: In an electrostatic dust precipitator of the type including a dust collection electrode structure and a discharge electrode structure which are impressed with DC voltages of the opposite polarities, the discharge electrode structure is constituted by a plurality of rod shaped parallel electrodes having a substantial surface area and discharge members.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: November 21, 1978
    Inventor: Hara Keiichi