US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES on Aug. 11 for "Optical fiber and optical fiber ribbon" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,671, issued on Aug. 11, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).

"Optical fiber and optical fiber ribbon" was invented by Noriaki Iwaguchi (Osaka, Japan) and Miho Ikegawa (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical fiber comprises a glass fiber including a core and a cladding, and a coating resin layer for coating the glass fiber; the coating resin layer has a primary resin layer in contact with the glass fiber for coating the glass fiber, and a secondary resin layer for coating the primary resin layer; the primary resin layer includes a cured product of a first resin composition containing a sili...