ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,548,479, issued on Feb. 10.

"Tape having different adhesive strengths on both sides and bulletin board using same" was invented by Jung Tak Seo (Osan-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tape used to attach a notice to an object through an adhesive strength includes: a first side attached to the object through a first adhesive strength; and a second side which has a second adhesive strength weaker than the first adhesive strength and to which the notice is attached, wherein, with such a configuration, using the tape having different adhesive strengths on both sides, the first side with the stronger adhesive strength is attach...