Patents by Inventor Nobuo Sono

Nobuo Sono 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).

  • Coating composition
    Patent number: 4622360
    Abstract: Removable water-borne urethane resin coating composition comprising polyurethane resin containing carboxyl groups and/or carboxylate groups and polyvalent metal complex as a cross-linking agent and method for removing the coating formed by using the removable water-borne urethane resin coating composition which comprises treating said coating with a ligand containing alkaline solution and removing the coating.The coating formed by using the composition is superior in water resistance, recoatability, detergent resistance, black heel mark resistance, abrasion resistance and service life.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: November 11, 1986
    Assignees: Yuho Chemicals Inc., Mitsui Toatsu Chemical Inc.
    Inventors: Tadashi Gomi, Kenji Sakata, Ichiro Aoyama, Nobuo Sono