Patents Assigned to Seiko Tsukamoto
  • Electrostatic and magnetic tobacco smoke filtering arrangement
    Patent number: 4258730
    Abstract: A ring-type smoker's set for removing carbon monoxide and nicotine from tobacco smoke comprising a member capable of applying a magnetic field and a member capable of applying an electrostatic field.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: March 31, 1981
    Assignee: Seiko Tsukamoto
    Inventor: Kenkichi Tsukamoto