US Patent Issued to MITSUBISHI GAS CHEMICAL on Dec. 2 for "Composition, and optical material and lens using same" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,352, issued on Dec. 2, was assigned to MITSUBISHI GAS CHEMICAL COMPANY INC. (Tokyo).

"Composition, and optical material and lens using same" was invented by Yousuke Imagawa (Tokyo), Kouhei Takemura (Tokyo), Ryosuke Sugihara (Tokyo) and Mariko Sado (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composition containing: a compound (a) represented by Formula (1):wherein Ar represents an aromatic ring, m represents an integer of 2 to 8, n represents an integer of 0 to 6, provided that m+n is equal to or less than a number of carbon atoms that constitute the aromatic ring, and R1 each independently represents an alkylthio group, an epoxyalkylthio ...