ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,913, issued on May 26, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Hyogo, Japan).
"Motorcycle tire" was invented by Yoshihisa Noguchi (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A motorcycle tire includes a tread portion having a crown region extending across a tire equatorial plane, and a pair of shoulder regions located axially outside the crown region. A tread rubber includes a surface layer of first rubber arranged on the radially outer side, a bottom layer of third rubber arranged on the radially inner side, and a pair of middle layers of second rubber arranged between the surface layer and the bottom layer. In terms of a l...