Patents by Inventor Miyoko Kusumi

Miyoko Kusumi 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 decomposing bromic acid by photocatalyst and apparatus therefor
    Patent number: 6846468
    Abstract: The invention relates to a method for decomposing bromate ions contained in a liquid. The method includes the sequential steps of bringing the liquid into contact with a photocatalyst; and irradiating the photocatalyst with a light ray having an energy that is not lower than that of a band gap of the photocatalyst, thereby generating a photocatalytic reaction to decompose the bromate ions. The invention further relates an apparatus for decomposing bromate ions contained in a liquid. The apparatus includes a first section for generating therein a photocatalytic reaction to decompose the bromate ions; a photocatalyst adapted to be brought into contact with the liquid in the first section; and a light source for irradiating the photocatalyst with the light ray such that the photocatalytic reaction is generated in the first section when the photocatalyst is in contact with the liquid. Thus, it is possible to efficiently and stably decompose the bromate ions.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: January 25, 2005
    Assignee: Kabushiki Kaisha Meidensha
    Inventors: Hiroshi Noguchi, Rie Kagami, Shigeo Sato, Miyoko Kusumi
  • Method for decomposing bromic acid by photocatalyst and apparatus therefor
    Publication number: 20020117392
    Abstract: The invention relates to a method for decomposing bromate ions contained in a liquid. The method includes the sequential steps of bringing the liquid into contact with a photocatalyst; and irradiating the photocatalyst with a light ray having an energy that is not lower than that of a band gap of the photocatalyst, thereby generating a photocatalytic reaction to decompose the bromate ions. The invention further relates an apparatus for decomposing bromate ions contained in a liquid. The apparatus includes a first section for generating therein a photocatalytic reaction to decompose the bromate ions; a photocatalyst adapted to be brought into contact with the liquid in the first section; and a light source for irradiating the photocatalyst with the light ray such that the photocatalytic reaction is generated in the first section when the photocatalyst is in contact with the liquid. Thus, it is possible to efficiently and stably decompose the bromate ions.
    Type: Application
    Filed: February 27, 2002
    Publication date: August 29, 2002
    Applicant: KABUSHIKI KAISHA MEIDENSHA
    Inventors: Hiroshi Noguchi, Rie Kagami, Shigeo Sato, Miyoko Kusumi
  • Method for decomposing bromic acid by photocatalyst and apparatus therefor
    Patent number: 6372095
    Abstract: The invention relates to a method for decomposing bromate ions contained in a liquid. The method includes the sequential steps of bringing the liquid into contact with a photocatalyst; and irradiating the photocatalyst with a light ray having an energy that is not lower than that of a band gap of the photocatalyst, thereby generating a photocatalytic reaction to decompose the bromate ions. The invention further relates to an apparatus for decomposing bromate ions contained in a liquid. The apparatus includes a first section for generating therein a photocatalytic reaction to decompose the bromate ions; a photocatalyst adapted to be brought into contact with the liquid in the first section; and a light source for irradiating the photoacatalyst with the light ray such that the photocatalytic reaction is generated in the first section when the photocatalyst is in contact with the liquid.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: April 16, 2002
    Assignee: Kabushiki Kaisha Meidensha
    Inventors: Hiroshi Noguchi, Rie Kagami, Shigeo Sato, Miyoko Kusumi