Patents by Inventor Miho Miyakawa

Miho Miyakawa 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).

  • Concrete or mortar admixture composition
    Patent number: 8168701
    Abstract: A concrete admixture composition concurrently using (A) a polycarboxylic acid type water-reducing agent for concrete, (B) a hydroxycarboxylic acid type water-reducing agent for concrete, and (C) a polysaccharide type thickening agent is offered, with the view to manufacture a high-performance and multi-functional concrete excelling in high fluidity, freshness retention, early strength, pumpability, material segregation resistance and anti-washout properties under water.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: May 1, 2012
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Hideo Koyata, Miho Miyakawa
  • Concrete or Mortar Admixture Composition
    Publication number: 20110046270
    Abstract: A concrete admixture composition concurrently using (A) a polycarboxylic acid type water-reducing agent for concrete, (B) a hydroxycarboxylic acid type water-reducing agent for concrete, and (C) a polysaccharide type thickening agent is offered, with the view to manufacture a high-performance and multi-functional concrete excelling in high fluidity, freshness retention, early strength, pumpability, material segregation resistance and anti-washout properties under water.
    Type: Application
    Filed: April 22, 2009
    Publication date: February 24, 2011
    Inventors: Hideo Koyata, Miho Miyakawa