ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,255, issued on Aug. 5, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).

"Member for nonaqueous electrolyte batteries" was invented by Tadaharu Isaka (Osaka, Japan), Hayato Tsuda (Osaka, Japan), Yumi Zenke (Osaka, Japan), Yukari Yamamoto (Osaka, Japan) and Takahisa Aoyama (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A member for a non-aqueous electrolyte battery containing a copolymer containing a tetrafluoroethylene unit and a fluoroalkyl vinyl ether unit, in which the number of functional groups per 106 carbon atoms of a main chain of the copolymer is 100 or less, and a melt flow rate of the copolymer is less than 20 g/10 minut...