Patents by Inventor Kiyotaka Tatsumi

Kiyotaka Tatsumi 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).

  • Floatation separation apparatus, method of floatation separation, and method of manufacturing products using the same
    Patent number: 9174856
    Abstract: By storing a liquid to be treated in a treatment tank main body 10 having a bottom portion 10g that narrows downward, with particles of materials to be treated dispersed therein, taking out the liquid to be treated from a position lower than the liquid level of the treatment tank main body 10, and returning the liquid to the bottom portion 10g of the treatment tank main body 10, thereby circulating the liquid to be treated while forming a vortex flow within the treatment tank main body 10, and at the same time supplying air bubbles from the lower part of the treatment main unit 10, a first component contained in froths is separated from a second component, which is less susceptible to floatation, contained in the liquid to be treated.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: November 3, 2015
    Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, KITAKYUSHU FOUNDATION FOR THE ADVANCEMENT OF INDUSTRY, SCIENCE AND TECHNOLOGY
    Inventors: Yasunori Matsufuji, Koji Takasu, Kiyotaka Tatsumi
  • FLOATATION SEPARATION APPARATUS, METHOD OF FLOATATION SEPARATION, AND METHOD OF MANUFACTURING PRODUCTS USING THE SAME
    Publication number: 20120111436
    Abstract: By storing a liquid to be treated in a treatment tank main body 10 having a bottom portion 10g that narrows downward, with particles of materials to be treated dispersed therein, taking out the liquid to be treated from a position lower than the liquid level of the treatment tank main body 10, and returning the liquid to the bottom portion 10g of the treatment tank main body 10, thereby circulating the liquid to be treated while forming a vortex flow within the treatment tank main body 10, and at the same time supplying air bubbles from the lower part of the treatment main unit 10, a first component contained in froths is separated from a second component, which is less susceptible to floatation, contained in the liquid to be treated.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 10, 2012
    Applicants: Kitakyushu Foundation for the Advancement of Industry, Science and Technology, JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Yasunori Matsufuji, Koji Takasu, Kiyotaka Tatsumi