Patents by Inventor Kumiko Kado

Kumiko Kado 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).

  • Aqueous dispersion comprising inorganic pigment-cationic resin composite fine particles and ink jet recording material containing same
    Publication number: 20040151894
    Abstract: An aqueous dispersion of inorganic pigment-cationic resin composite fine particles, having a high dispersing property and a high dispersion stability, contains agglomerate particles of a cationic resin which has cationic polymerization units having a five-membered cyclic amidine structure of the formula (1), with inorganic pigment particles having an average primary particle size of 3 to 40 nm, the agglomerate particles having an average secondary particle size controlled to from 10 nm to 1.0 &mgr;m.
    Type: Application
    Filed: September 5, 2003
    Publication date: August 5, 2004
    Applicant: OJI PAPER CO., LTD.
    Inventors: Kumiko Kado, Ryu Kitamura