Patents by Inventor Suzuka Kakuchi

Suzuka Kakuchi 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).

  • Inkjet recording ink, inkjet recording method, ink cartridge, and inkjet recording system
    Publication number: 20060160924
    Abstract: An inkjet recording ink contains a high-molecular dispersant, a water-insoluble colorant, a co-solvent, and water as principal components. The co-solvent is composed at least of (a) a polyol-alkylene oxide adduct represented by the following formula 1 and (b) an ethylene oxide-propylene oxide block copolymer represented by the following formula 2 or 3: wherein R represents a lower alkyl group or —CH2O(CH2CHXO)kH (X: H or CH3, k: 1 to 20), l+m+n is 3 to 60; x1+z1 is 4 to 100, and y1 is 1 to 50; and x2+z2 is 2 to 100, and y2 is 2 to 50.
    Type: Application
    Filed: January 19, 2006
    Publication date: July 20, 2006
    Inventors: Suzuka Kakuchi, Yukiko Tachibana, Tomoya Yamamoto