Patents by Inventor Jyuzo Kuroda

Jyuzo Kuroda 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).

  • Patent number: 5112526
    Abstract: A method for modifying the surface of the microcapsule consisting of an outer layer composed of a urea-formaldehyde copolymer, a melamine-formaldehyde copolymer or a urea-melamine-formaldehyde terpolymer and an inner phase composed of hydrophobic organic components, the method comprises contacting the microcapsule with a water-immiscible organic solvent and at least one member selected from the group of compound of general formula (I) ##STR1## wherein R is an alkyl group having 8 to 22 carbon atoms; x and y are each a whole number not less than 0 and their sum is a whole number of not more than 60, provided that x and y cannot be simultaneously equal to 0.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: May 12, 1992
    Assignee: 501 Sakura Color Products Corporation
    Inventor: Jyuzo Kuroda