US Patent Issued to Nippon Sheet Glass on Sept. 23 for "Glass fiber and composition for glass fibers" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,158, issued on Sept. 23, was assigned to Nippon Sheet Glass Co. Ltd. (Tokyo).

"Glass fiber and composition for glass fibers" was invented by Aya Nakamura (Mie, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a glass composition for glass fibers, the glass composition including, in mass %: SiO2: 59.5 to 62.5%; Al2O3: 19 to 21.2%; B2O3: 0 to 0.5%; MgO: 16 to 18%; CaO: 0 to 1.5%; Li2O: 0 to 1.0%; Na2O: 0 to 0.2%; K2O: 0 to 0.1%; TiO2: 0 to 5%; ZrO2: 0 to 5%; ZnO: 0 to 1.5%; and F2: 0 to 0.1%."

The patent was filed on Dec. 28, 2022, under Application No. 18/249,482.

*For further information, including images, char...