Patents by Inventor Sunao Urabe

Sunao Urabe 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).

  • Impression material compositions
    Patent number: 5206272
    Abstract: This invention relates to an impression material composition comprising an alginate and a gelling agent and being hardened in the presence of water, an unsaturated carboxylic acid polymer being contained in an amount of 5 to 150 parts by weight per 100 parts by weight of the alginate.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: April 27, 1993
    Assignee: Tokuyama Soda Kabushiki Kaisha
    Inventors: Sunao Urabe, Shouichi Narui
  • Curable composition
    Patent number: 4877854
    Abstract: A curable composition comprising an unsaturated polyether having terminal alkenyl groups, a linear or branched siloxane-substituted polyether having terminal polyorganosiloxane residues and at least two Si-H groups in the molecule and a catalyst having platinum as the main component has an excellent deep portion curing property and provides a cured body having a good hydrophilic property and a good dimensional reproducibility. This curable composition is especially valuable as a dental impression material.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: October 31, 1989
    Assignee: Tokuyama Soda Kabushiki Kaisha
    Inventors: Norikazu Hattori, Sunao Urabe, Koshi Kusumoto