ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,309, issued on Nov. 18, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).
"Hermetically sealed battery" was invented by Kenji Yamato (Osaka, Japan) and Masao Ootsuka (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hermetically sealed battery includes: a battery can having a cylindrical shape with a bottom and an opening; an electrode body accommodated in the battery can; and a sealing plate sealing the opening of the battery can. The sealing plate has a first main surface facing an outside of the battery can and a second main surface opposite thereto. The sealing plate includes an outer peripheral por...