Patents by Inventor Tadanori Komoda

Tadanori Komoda 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 manufacturing filter having ceramic porous film as separating film
    Patent number: 6509060
    Abstract: A method for manufacturing a filter utilizing a porous ceramic membrane as a separation film is provided, comprising the steps of substituting the air inside fine-pores of the porous substrate with a liquid, isolating the porous substrate face to be provided with a separation film, the other face of the porous substrate face not provided with the separation film, continuously feeding a film deposition slurry containing ceramic framework particles to allow the slurry to contact the face of the porous substrate to be provided with the separation film, applying a differential filtration pressure between the faces of the porous substrate, and depositing the slurry on the surface of the porous substrate. An organic polymer for endowing the deposition film with filtration resistance is added to the slurry.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: January 21, 2003
    Assignee: NGK Insulators, Ltd.
    Inventors: Tadanori Komoda, Makoto Ito, Tatsuya Hishiki, Masahiro Murasato, Manabu Isomura
  • Porous ceramic filter
    Patent number: 4810273
    Abstract: A porous ceramic filter consisting of a planar porous support formed of a ceramic material, and a filtering layer formed of a fired mass of a ceramic powder integrally deposited on an upper surface of the porous ceramic support. A particle size of the ceramic powder, and a size of macro pores formed in the fired mass of said ceramic powder, decrease substantially continuously in a direction from the upper surface of the ceramic support toward an exposed surface of the filtering layer.
    Type: Grant
    Filed: January 5, 1988
    Date of Patent: March 7, 1989
    Assignee: NGK Insulators, Ltd.
    Inventor: Tadanori Komoda
  • Porous ceramic filter and process of producing the same
    Patent number: 4746341
    Abstract: A porous ceramic filter consisting of a planar porous support formed of a ceramic material, and a filtering layer formed of a fired mass of a ceramic powder integrally deposited on an upper surface of the porous ceramic support. A particle size of the ceramic powder, and a size of macro pores formed in the fired mass of said ceramic powder, decrease substantially continuously in a direction from the upper surface of the ceramic support toward an exposed surface of the filtering layer.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: May 24, 1988
    Assignee: NGK Insulators, Ltd.
    Inventor: Tadanori Komoda
  • Process of producing multiple-layer filter medium
    Patent number: 4719058
    Abstract: A process of producing a multiple-layer filter medium comprising a porous support and a filtering layer formed on one of opposite surfaces of the porous support.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: January 12, 1988
    Assignee: NGK Insulators, Ltd.
    Inventor: Tadanori Komoda