ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,686, issued on Sept. 30, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Set of random primers and method for preparing DNA library using the same" was invented by Hiroyuki Enoki (Hamamatsu, Japan), Yoshie Takeuchi (Hamamatsu, Japan) and Minoru Inamori (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "When preparing a DNA library via a nucleic acid amplification reaction using a random primer in a convenient and highly reproducible manner, amplification of DNA fragments derived from the chloroplast genome is reduced to a significant extent. A random primer comprises oligonucleotides selected from oligonucleotides group represented...