US Patent Issued to NIPPON ELECTRIC GLASS on July 22 for "Glass direct roving production method and glass direct roving" (Japanese Inventor)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,621, issued on July 22, was assigned to NIPPON ELECTRIC GLASS Co. LTD. (Shiga, Japan).

"Glass direct roving production method and glass direct roving" was invented by Akira Kunitomo (Otsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for producing a glass direct roving that has excellent workability and can effectively increase the mechanical strength of a composite material obtained by combination with resin. A method for producing a glass direct roving 10 formed by directly winding up a bundle of glass filaments includes the steps of: applying a sizing agent containing an epoxy resin having an epoxy equivalent of 180 t...