ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,637, issued on Oct. 21, was assigned to Japan Science and Technology Agency (Kawaguchi, Japan).

"Primer, device for producing double-stranded DNA using primer, and method for producing double-stranded DNA using primer" was invented by Hiroshi Abe (Nagoya, Japan), Naoko Abe (Nagoya, Japan), Kosuke Nakamoto (Nagoya, Japan), Hiroki Murase (Nagoya, Japan) and Yasuaki Kimura (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A primer for amplifying a nucleic acid having a structure represented by the formula (1):where B represents a base, R1 represents a decomposable protecting group, and R2 represents hydrogen or a hydroxyl group, and the sym...