US Patent Issued to IDEMITSU KOSAN on March 31 for "Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device" (Japanese Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,076, issued on March 31, was assigned to IDEMITSU KOSAN Co. LTD. (Chiyoda-ku, Japan).

"Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device" was invented by Hirokatsu Ito (Sodegaura, Japan), Tasuku Haketa (Sodegaura, Japan) and Yu Kudo (Sodegaura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an organic electroluminescent element including a compound that is represented by formula (1) and having a more improved lifetime. In the formula, X, R1-R8, R11-R17, R21-R30, L1, L2, n, and Ar1-Ar3 are as defined in the description:"

The patent was filed on May 10, 2019, under ...