Patents by Inventor Toshizo Iida

Toshizo Iida 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 of Treating Waste Liquid from Production Plant for Hydrocarbons or Oxygen-Containing Compounds
    Publication number: 20070289923
    Abstract: A method for treating a formaldehyde-containing waste liquid, which is formed as a byproduct in a plant for the production of hydrocarbons or oxygen-containing compounds, containing the steps of: subjecting formaldehyde in the liquid to chemical treatment; and treating the resulting waste liquid, while being aerated, by using a membrane bioreactor that is composed of a microorganism or enzyme and a separation membrane.
    Type: Application
    Filed: October 21, 2005
    Publication date: December 20, 2007
    Inventors: Hiroaki Ikebe, Masayuki Uchida, Hitoshi Betchaku, Toshizo Iida
  • Color developer sheet for pressure-sensitive recording
    Patent number: 4824825
    Abstract: A color developer sheet for pressure-sensitive recording containing as a color developer only novolak phenol resin or novolak phenol resin and a semi-synthetic solid acid, and as a binder an acrylamide-acrylic acid copolymer can prevent yellowing of the color developer sheet and give higher developed color density.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: April 25, 1989
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventor: Toshizo Iida