Patents by Inventor Masafumi Achiwa

Masafumi Achiwa 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 for thick coating
    Patent number: 8835553
    Abstract: A coating composition has excellent application workability, facilitates thick coating, rarely causes cracks at an initial drying stage, and provides a dried film having excellent tensile properties and adhesiveness. The composition contains an aggregate and an emulsion with a polymer particle dispersed in an aqueous medium. The polymer particle includes 40% to 98% of a unit formed by polymerizing an alkyl(meth)acrylate monomer, the alkyl group having 4 to 14 carbon atoms, 0.1% to 5% of a unit formed by polymerizing an ethylenically unsaturated carboxylic acid monomer, 1% to 20% of a unit formed by polymerizing a vinyl monomer having a cyano group, 1% to 20% of a unit formed by polymerizing a reaction product of a (meth)acrylic acid and a monofunctional epoxy compound, and 0% to 50% of a unit formed by copolymerizing at least one of the above monomers with another monomer.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: September 16, 2014
    Assignee: Toagosei Co., Ltd.
    Inventors: Shinji Takeda, Masafumi Achiwa, Hiroyuki Noguchi, Akemi Kouketsu, Katsunobu Mochizuki
  • COATING COMPOSITION FOR THICK COATING
    Publication number: 20120094115
    Abstract: A coating composition has excellent application workability, facilitates thick coating, rarely causes cracks at an initial drying stage, and provides a dried film having excellent tensile properties and adhesiveness. The composition contains an aggregate and an emulsion with a polymer particle dispersed in an aqueous medium. The polymer particle includes 40% to 98% of a unit formed by polymerizing an alkyl(meth)acrylate monomer, the alkyl group having 4 to 14 carbon atoms, 0.1% to 5% of a unit formed by polymerizing an ethylenically unsaturated carboxylic acid monomer, 1% to 20% of a unit formed by polymerizing a vinyl monomer having a cyano group, 1% to 20% of a unit formed by polymerizing a reaction product of a (meth)acrylic acid and a monofunctional epoxy compound, and 0% to 50% of a unit formed by copolymerizing at least one of the above monomers with another monomer.
    Type: Application
    Filed: June 30, 2010
    Publication date: April 19, 2012
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Shinji Takeda, Masafumi Achiwa, Hiroyuki Noguchi, Akemi Kouketsu, Katsunobu Mochizuki