ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,706,309, issued on Aug. 11, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Alkali dry cell" was invented by Yasufumi Takahashi (Hyogo, Japan), Takayuki Nakatsutsumi (Osaka, Japan) and Atsushi Fukui (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An alkaline dry battery including: a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and an alkaline electrolyte retained in the positive electrode, the negative electrode, and the separator. The negative electrode includes a negative electrode active material containing zinc, and an addit...