US Patent Issued to Kubota on April 22 for "Watertightness testing device and watertightness testing method" (Japanese Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,962, issued on April 22, was assigned to Kubota Corp. (Osaka, Japan).

"Watertightness testing device and watertightness testing method" was invented by Yuito Komaru (Amagasaki, Japan), Masataka Shimomura (Amagasaki, Japan), Daichi Higasa (Amagasaki, Japan) and Kohei Ikeda (Amagasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A watertightness testing device (1) for performing a watertightness test of a joined section between joined pipes (2 and 3), the watertightness testing device (1) including a testing device body (21) and a moving operation rod (22) for moving the testing device body (21) in the pipes in a pipe axial direction (B) from ...