Patents by Inventor Kazuo Ami

Kazuo Ami 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).

  • Liquid type dye preparations
    Patent number: 4197087
    Abstract: A dispersant-free liquid dye preparation comprising (1) a vehicle consisting of a particular water-soluble-COONH.sub.4 group-containing polymer and a water-miscible organic solvent with or without water, and (2) a water-insoluble or sparingly water-soluble dye dispersed in the vehicle. The dye preparation can be prepared simply by mixing these ingredients and grinding the mixture. Textile articles can be dyed or printed in deep and brilliant shades by using dyeing baths or printing pastes containing the liquid dye preparation.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: April 8, 1980
    Assignee: Daido-Maruta Finishing Co. Ltd.
    Inventors: Kazuo Ami, Toshiyuki Iwahana, Junichi Fukuoka