ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,533, issued on Aug. 26, was assigned to KELK Ltd. (Kanagawa, Japan).
"Residual charge removal device" was invented by Tomonori Murata (Kanagawa, Japan) and Isao Shibata (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A residual charge removal device includes: a power storage unit; a first switching unit that is connected to a target to which electric power is supplied from a power supply device, and operates to remove a residual charge of the target by electric power supplied from the power storage unit; and a second switching unit that operates to supply electric power from the power storage unit to the first switching unit when ele...