ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,407,059, issued on Sept. 2, was assigned to SANYO Electric Co. Ltd. (Osaka, Japan).
"Gas discharge valve of battery and battery" was invented by Yohei Muroya (Hyogo, Japan) and Hiroshi Maesono (Hyogo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve body of a gas discharge valve includes a substantially annular main notch for opening the valve body and an auxillary notch provided in a region inside the main notch. The main notch and the auxillary notch are coupled to each other at least at one location. At a coupling portion between the main notch and the auxillary notch, the curvature of an inner corner of a bottom portion of the main notch...