Patents by Inventor Shigeto Miuma

Shigeto Miuma 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).

  • Water treatment system
    Patent number: 7931802
    Abstract: A water treatment system having a biological treatment step (a secondary treatment step) and a membrane separation step (a tertiary treatment step), wherein a portion of the raw water to be treated and/or a portion of the primarily treated water in the pretreatment step are biologically treated and supplied into a reaction tank in the membrane separation step as the main channel system, while the remainder the raw water to be treated and/or the remainder of the primarily treated water in the pretreatment step are added together with a flocculating agent to the reaction tank in the membrane separation step, and then the membrane separation is conducted in the membrane separation step.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: April 26, 2011
    Assignee: Kubota Corporation
    Inventors: Kazuhisa Nishimori, Kiyoshi Izumi, Taichi Uesaka, Tatsuya Uejima, Hidetoshi Masutani, Shigeto Miuma
  • Water Treatment System
    Publication number: 20090236275
    Abstract: A water treatment system having a biological treatment step (a secondary treatment step) and a membrane separation step (a tertiary treatment step), wherein a portion of the raw water to be treated and/or a portion of the primarily treated water in the pretreatment step are biologically treated and supplied into a reaction tank in the membrane separation step as the main channel system, while the remainder the raw water to be treated and/or the remainder of the primarily treated water in the pretreatment step are added together with a flocculating agent to the reaction tank in the membrane separation step, and then the membrane separation is conducted in the membrane separation step.
    Type: Application
    Filed: February 27, 2006
    Publication date: September 24, 2009
    Inventors: Kazuhisa Nishimori, Kiyoshi Izumi, Taichi Uesaka, Tatsuya Uejima, Hidetoshi Masutani, Shigeto Miuma