Patents by Inventor Masashi Kumagat

Masashi Kumagat 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).

  • Organic carboxylic acid salt composition, process for preparation thereof and additives for epoxy resins
    Publication number: 20040077751
    Abstract: The present invention provides an organic carboxylate composition that has long working life, cures epoxy resins, and improves adhesive properties, and also provides a method for producing the same. An organic carboxylate composition, obtained by heating and mixing a basic silane coupling agent and an amine compound with a softening point or melting point of 40° C. or greater together with an organic carboxylic acid; a method for producing the same; an additive for epoxy resin that contains this as the active ingredient thereof; and an epoxy resin composition containing the same. The basic silane coupling agent should preferably be a specific imidazole-group containing silane coupling agent, amino group-containing silane coupling agent, dialkylamino group-containing silane coupling agent, monomethylamino group-containing silane coupling agent, benzimidazole group-containing silane coupling agent, benzotriazole group-containing silane coupling agent, and pyridine ring-containing silane coupling agent.
    Type: Application
    Filed: June 25, 2003
    Publication date: April 22, 2004
    Inventors: Masashi Kumagat, Takashi Ouchi, Katsuyuki Tsuchida