Patents by Inventor Katsuhiko Yonezawa

Katsuhiko Yonezawa 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).

  • Dispersion method and dispersion apparatus for material to be processed and method for producing mixed liquid of material to be processed and dispersion medium produced thereby
    Patent number: 11541361
    Abstract: In order to provide a dispersion method and a dispersion apparatus capable of mixing a material to be processed and a dispersion medium having no affinity with each other using a single apparatus without using a dispersant, there are provided a quantitative supply mechanism quantitatively supplying a material to be processed, a suction stirring mechanism primarily including a suction stirring pump in which the material to be processed and a dispersion medium are subjected to negative pressure suction by a negative pressure suction force generated by rotation of a rotating blade and the suctioned material to be processed and the dispersion medium are stirred and mixed by the rotating blade and are allowed to pass through a throttle passage to cause cavitation, and a plasma generating mechanism generating a plasma in bubbles formed due to cavitation in a mixed liquid of the material to be processed and the dispersion medium.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: January 3, 2023
    Assignees: NIHON SPINDLE MANUFACTURING CO., LTD., UNIVERSITY OF HYOGO, KABUSHIKI KAISHA DAINICHI SEISAKUSHO
    Inventors: Keiichi Asami, Yoshihiro Oka, Yoshimi Nishimura, Tomohiro Hashimoto, Katsuhiko Yonezawa
  • DISPERSION METHOD AND DISPERSION APPARATUS FOR MATERIAL TO BE PROCESSED AND METHOD FOR PRODUCING MIXED LIQUID OF MATERIAL TO BE PROCESSED AND DISPERSION MEDIUM PRODUCED THEREBY
    Publication number: 20170341040
    Abstract: In order to provide a dispersion method and a dispersion apparatus capable of mixing a material to be processed and a dispersion medium having no affinity with each other using a single apparatus without using a dispersant, there are provided a quantitative supply mechanism quantitatively supplying a material to be processed, a suction stirring mechanism primarily including a suction stirring pump in which the material to be processed and a dispersion medium are subjected to negative pressure suction by a negative pressure suction force generated by rotation of a rotating blade and the suctioned material to be processed and the dispersion medium are stirred and mixed by the rotating blade and are allowed to pass through a throttle passage to cause cavitation, and a plasma generating mechanism generating a plasma in bubbles formed due to cavitation in a mixed liquid of the material to be processed and the dispersion medium.
    Type: Application
    Filed: July 31, 2017
    Publication date: November 30, 2017
    Inventors: Keiichi Asami, Yoshihiro Oka, Yoshimi Nishimura, Tomohiro Hashimoto, Katsuhiko Yonezawa