ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,855, issued on June 30, was assigned to Panasonic Intellectual Property Management Co. Ltd. (Osaka, Japan).

"Discharge device" was invented by Yohei Ishigami (Osaka, Japan) and Makoto Imai (Shiga, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Discharge device includes discharge electrode, voltage application circuit, and current limiting element. Discharge electrode is disposed to face counter electrode, and retains liquid. Voltage application circuit is electrically connected to discharge electrode and counter electrode with discharge electrode as a ground side. Voltage application circuit generates discharge between discharge electrode and ...