US Patent Issued to KUREHA on July 1 for "Downhole plug device, tube affixing method, and tube inspection method" (Japanese Inventor)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,118, issued on July 1, was assigned to KUREHA Corp. (Tokyo).

"Downhole plug device, tube affixing method, and tube inspection method" was invented by Ramu Miike (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole plug device, a fixing method of a tubular body, and an inspection method of a tubular body. In a downhole plug device, a plug that seals one end of a housing having a cylindrical shape is fixed to the housing by a bolt that penetrates through the plug. The downhole plug device is connected to a tip of a tubular body inserted into a casing in a well and is used for a method of inspecting presence or absence of leakage of fluid fr...