US Patent Issued to IDEMITSU KOSAN on Sept. 30 for "Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,409, issued on Sept. 30, was assigned to IDEMITSU KOSAN Co. LTD. (Chiyoda-ku, Japan).

"Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device" was invented by Yoshinao Shirasaki (Chiba, Japan) and Tetsuya Masuda (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An organic electroluminescent element having a further improved life; and a compound which is a novel material capable of providing the organic electroluminescent element and is represented by formula (1). (In formula (1), Y1 to Y3, L1, L2, L3, Ar1, Ar2, m, n, X, R1 to R6, and *a are as defined in the description)."

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