Patents by Inventor Keiichi Betsumori

Keiichi Betsumori 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 for removing phosphorus and method for reutilizing recovered phosphorus
    Patent number: 7514002
    Abstract: A method for removing phosphorus is provided in which eutrophic water as a treatment target is supplied to fly ash thereby removing phosphorus contained in the eutrophic water. The fly ash includes about 3% or more calcium oxide as a component. Alternatively, the fly ash consists of a double-structure embedding fine particles in a cavity of a hollow-particle structure having a hole in a part of the surface. Alternatively, the fly ash includes about 3% or more calcium oxide as a component and consisting of a double structure embedding fine particles in a cavity of a hollow-particle structure having a hole in a part of the surface.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: April 7, 2009
    Assignee: Hokuriku Electric Power Company
    Inventors: Keiichi Betsumori, Takashi Matsubara, Hiroshi Saiki, Isao Karube