ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,654, issued on June 30, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Electret material and induction conversion element" was invented by Yoshito Tanaka (Osaka, Japan), Makoto Matsuura (Osaka, Japan), Yuuki Suzuki (Osaka, Japan), Akitoshi Ogata (Osaka, Japan) and Satoru Yoneda (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present disclosure is to provide, for example, a fluoropolymer electret material with hardness. The present disclosure relates to an electret material comprising a fluoropolymer, wherein the fluoropolymer comprises, as a main component, a monomer unit represented by formula (1):wherein R1 t...