Patents by Inventor Seiichi FUKUOKA

Seiichi FUKUOKA 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).

  • Break filter using a silicon carbide porous body and manufacturing method of the break filter
    Patent number: 10974183
    Abstract: A silicon carbide porous body includes a skeletal structure formed by a plurality of silicon carbide particles bonded to each other, a plurality of pores formed by the skeletal structure, neck parts formed by surface-contacting of adjacent silicon carbide particles, and an average pore size is larger than 3 ?m and equal to or smaller than 9 ?m, and a porosity ranges from 35% to 55%. A break filter using the silicon carbide porous body enables high performance of collection of particles, prevention of soaring up of particles, and shortening of a restoration time from the depressurized state of the chamber to the atmospheric state.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: April 13, 2021
    Assignee: COORSTEK KK
    Inventors: Seiichi Fukuoka, Hiroki Watanabe
  • SILICON CARBIDE POROUS BODY AND MANUFACTURING METHOD OF THE SAME, AND BREAK FILTER USING THE SILICON CARBIDE POROUS BODY AND MANUFACTURING METHOD OF THE BREAK FILTER
    Publication number: 20190282941
    Abstract: A silicon carbide porous body includes a skeletal structure formed by a plurality of silicon carbide particles bonded to each other, a plurality of pores formed by the skeletal structure, neck parts formed by surface-contacting of adjacent silicon carbide particles, and an average pore size is larger than 3 ?m and equal to or smaller than 9 ?m, and a porosity ranges from 35% to 55%. A break filter using the silicon carbide porous body enables high performance of collection of particles, prevention of soaring up of particles, and shortening of a restoration time from the depressurized state of the chamber to the atmospheric state.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 19, 2019
    Applicant: CoorsTek KK
    Inventors: Seiichi FUKUOKA, Hiroki WATANABE