US Patent Issued to NAGANO KEIKI on Sept. 15 for "Optical sensor and physical quantity measurement device having a sensor head firmly bonded to a base" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,471, issued on Sept. 15, was assigned to NAGANO KEIKI Co. LTD. (Tokyo).

"Optical sensor and physical quantity measurement device having a sensor head firmly bonded to a base" was invented by Ayumu Sakamoto (Tokyo), Keiichi Fujita (Tokyo) and Tsutomu Yamate (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical sensor includes: a metal base formed into a cylindrical shape; an optical fiber member inserted into the base; and a sensor head that is bonded to the base and is optically connected to the optical fiber member, the sensor head including a head portion formed from monocrystalline alumina, in which the base includes a fitting portion...