ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,389, issued on April 14, was assigned to ENTEK ASIA INC (Fuwa-gun, Japan).
"Separator for lead acid batteries" was invented by Shoji Sugiyama (Fuwa-gun, Japan) and Masayasu Wada (Fuwa-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "[Problem] To provide an optimum separator that simultaneously has basic physical properties essential for the characteristics of a separator for valve-regulated lead acid batteries and liquid absorbability while taking into account the improvement of the battery capacity and battery life and the good battery assembly performance.[Solution] The aspect ratio (average fiber length/average fiber diameter) of a glas...