Patents by Inventor Noriko Hiratsuka

Noriko Hiratsuka 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).

  • Method for bonding composite resin to dentin
    Patent number: 4830616
    Abstract: A method for bonding a restorative composite resin to dentin which comprises:treating the surface of dentin with a dentin-treating liquid for, 1 to 90 seconds obtained by adding glutaraldehyde and ferric chloride to an aqueous solution of ethylenediaminetetraacetic acid regulated to a hydrogen ion concentration (pH) of 7.4; removing the treating liquid by water-rinsing to dry the thus treated surface of dentin; applying a primer comprising an ethylene related unsaturated monomer, a (meth)acrylic ester polymer and tri-n-butyl borane on the dried surface of dentin; and filling the restorative composite resin onto the applied surface of dentin.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: May 16, 1989
    Assignees: Reiichi Okuda, G-C Dental Industrial Corp.
    Inventors: Reiichi Okuda, Masashi Komatsu, Shin Asanuma, Noriko Hiratsuka