ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,452,999, issued on Oct. 21, was assigned to LG INNOTEK Co. LTD. (Seoul, South Korea).
"Circuit board" was invented by Seong Hwan Im (Seoul, South Korea), Seon Mo Gu (Seoul, South Korea), Ki Tae Kwon (Seoul, South Korea) and Chang Je Kim (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit board according to an embodiment includes a first substrate layer; a second substrate layer disposed on the first substrate layer; and a third substrate layer disposed under the first substrate layer; wherein the second substrate layer includes: a first inner circuit pattern layer disposed on the first substrate layer; and a first outermost circ...