ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,598, issued on May 5, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Positive electrode for secondary batteries, and secondary battery" was invented by Yuji Oura (Osaka, Japan), Tomoki Shiozaki (Osaka, Japan) and Hideharu Takezawa (Nara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "This positive electrode for secondary batteries is provided with: a positive electrode collector which has a plurality of recesses and projections in the surface; an intermediate layer which is provided on the surface of the positive electrode collector having the recesses and projections; and a positive electrode mixture layer ...