Patents by Inventor Kenji Shimaji

Kenji Shimaji 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).

  • Three phase fluidized bed water purifying process
    Patent number: 4620931
    Abstract: A three phase fluidized bed water purifying process comprises purifying effluents in a three phase fluidized bed composed of solid particles, an effluent, and a gas in fluidized state, the solid particles being made by mixing a binder with an inorganic material based on aluminium silicate, granulating the resulting mixture, and firing the granules to sinter them. The present invention permits the purification of effluent for a long period of time without oxygen deficiency.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: November 4, 1986
    Assignees: Waseda University, Onoda Cement Company, Ltd.
    Inventors: Akira Hirata, Hajime Nagayama, Akinori Watanabe, Kouji Nitta, Kenji Shimaji