ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,749, issued on April 15, was assigned to SUMITOMO RUBBER INDUSTRIES LTD. (Hyogo, Japan) and TOKYO INSTITUTE OF TECHNOLOGY (Tokyo).
"Rotaxane compound" was invented by Shoko Nakahata (Hyogo, Japan), Toshikazu Takata (Tokyo) and Toyokazu Tsutsuba (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotaxane compound comprising one or more cyclic molecules and an axial molecule penetrating through inner holes of the cyclic molecules and having cap structures disposed lest the cyclic molecules should be detached, where one of the cyclic molecule and the axial molecule has one of a functional group being capable of reacting with silica and a functional...