ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,443, issued on May 20, was assigned to SEKISUI CHEMICAL Co. Ltd. (Osaka, Japan).
"Light control body and light control windowpane" was invented by Hajime Shouhi (Shiga, Japan) and Shougo Yoshida (Roermond, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a light control body and a light control windowpane which are capable of preventing reduction in light control performance even when used in an environment exposed to strong light for a long period of time. Provided is a light control body including: a light control layer; and a visible light absorbing layer having a visible light transmittance Tv at a wavele...