ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,727,375, issued on Sept. 1, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Gyeonggi-Do, South Korea).
"Polymer, a composition, and an electroluminescent device" was invented by Masashi Tsuji (Hwaseong-si, South Korea), Norihito Ishii (Kanagawa-ken, Japan), Takahiro Fujiyama (Yokohama, Japan), Naotoshi Suganuma (Kanagawa-ken, Japan), Yusaku Konishi (Yokohama, Japan) and Fumiaki Kato (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "As a means for providing an electroluminescent device capable of achieving high luminance, high efficiency, and at the same time excellent device life-span, a polymer having an overlap index of greater than or equ...