Patents by Inventor Akinari Niimi

Akinari Niimi 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).

  • Powder primer composition and method for forming coating film
    Patent number: 7858153
    Abstract: A powder primer composition comprising as essential components (A) a carboxyl group-containing thermosetting polyester resin, (B1) a bisphenol A-type epoxy resin with an epoxy equivalent of 400-2000 g/eq or (B2) a bisphenol-type epoxy resin with an epoxy equivalent of 400-2000 g/eq and (C1) a bisphenol F-type epoxy resin with an epoxy equivalent of 400-2000 g/eq or (C2) a modified epoxy resin containing phenolic hydroxyl groups, obtained by reacting (a) a bifunctional epoxy resin with (b) an excess of a bifunctional phenol. Coating films obtained using the powder primer composition have excellent finished appearance and corrosion resistance.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: December 28, 2010
    Assignee: Kansai Paing Co., Ltd.
    Inventors: Yoshinori Kato, Akinari Niimi, Yugen Kawamoto
  • Powder primer composition and method for forming coating film
    Publication number: 20070255015
    Abstract: A powder primer composition comprising as essential components (A) a carboxyl group-containing thermosetting polyester resin, (B1) a bisphenol A-type epoxy resin with an epoxy equivalent of 400-2000 g/eq or (B2) a bisphenol-type epoxy resin with an epoxy equivalent of 400-2000 g/eq and (C1) a bisphenol F-type epoxy resin with an epoxy equivalent of 400-2000 g/eq or (C2) a modified epoxy resin containing phenolic hydroxyl groups, obtained by reacting (a) a bifunctional epoxy resin with (b) an excess of a bifunctional phenol. Coating films obtained using the powder primer composition have excellent finished appearance and corrosion resistance.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 1, 2007
    Inventors: Yoshinori Kato, Akinari Niimi, Yugen Kawamoto