Patents by Inventor Yoshiaki Kakumoto

Yoshiaki Kakumoto 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).

  • Method and apparatus for purification of water
    Patent number: 4105549
    Abstract: Water or waste water is purified by passing same through a packed layer of active carbon utilizing the absorbing activity of active carbon. An apparatus for practicing this method is disclosed.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: August 8, 1978
    Assignee: Ebara Infilco Kabushiki Kaisha
    Inventors: Yoshiaki Kakumoto, Mamoru Kanegawa, Takashi Iwaizumi, Nobuo Matsumoto