ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,701,921, issued on Aug. 4, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Piezoelectric film" was invented by Masaharu Arimoto (Osaka, Japan), Saori Sakami (Osaka, Japan), Tetsuhiro Kodani (Osaka, Japan) and Takashi Kanemura (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to provide an organic piezoelectric film with a high level of piezoelectricity, a high level of transparency, and a low level of retardation. The organic piezoelectric film of the present disclosure has a total light transmittance of 90% or more, an internal haze value of 0.2%/micro metre or less per unit film thickness or an internal haze value of 4% ...