Patents by Inventor Hisafumi Tabana

Hisafumi Tabana 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).

  • Aliphatic polyisocyanate prepolymers and polyurethane resin coating compositions using the same
    Patent number: 8378053
    Abstract: An aliphatic polyisocyanate prepolymer obtained by reacting an aliphatic isocyanurate group-containing polyisocyanate with a short-chain diol, having a urethane bond content of 3.0% by weight or more based on the weight of the prepolymer and a solubility parameter of 11.8 or more.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: February 19, 2013
    Assignee: Bayer MaterialScience AG
    Inventors: Tomokazu Shigemori, Kouichi Katamura, Hisafumi Tabana
  • Aliphatic polyisocyanate prepolymers and polyurethane resin coating compositions using the same
    Publication number: 20080114144
    Abstract: An aliphatic polyisocyanate prepolymer obtained by reacting an aliphatic isocyanurate group-containing polyisocyanate with a short-chain diol, having a urethane bond content of 3.0% by weight or more based on the weight of the prepolymer and a solubility parameter of 11.8 or more.
    Type: Application
    Filed: October 16, 2007
    Publication date: May 15, 2008
    Inventors: Tomokazu Shigemori, Kouichi Katamura, Hisafumi Tabana
  • Polyisocyanates blocked with diisopropyl malonate and their use in one-component coating compositions
    Publication number: 20060276611
    Abstract: The present invention relates to a blocked polyisocyanate composition containing A) a blocked polyisocyanate which is the reaction product of i) a polyisocyanate prepared from an aliphatic and/or alicyclic diisocyanate and ii) a malonic acid diester blocking agent containing at least 90 equivalent %, based on the total equivalents of blocking agent, of diisopropyl malonate, and B) a mono-functional active hydrogen-containing compound. The present invention also relates to a one-component coating composition containing these blocked polyisocyanate compositions and a polyhydroxyl compound.
    Type: Application
    Filed: May 30, 2006
    Publication date: December 7, 2006
    Inventors: Kouichi Katamura, Toshihiro Iwanaka, Tomokazu Shigemori, Hisafumi Tabana