ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,751, issued on May 27, was assigned to Kubota Corp. (Osaka, Japan).
"Tank and method of manufacturing a tank" was invented by Masaki Inaoka (Sakai, Japan), Ryohei Sumiyoshi (Sakai, Japan) and Shogo Kajii (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tank includes a tank body made of a thermoplastic resin, a female screw member and a joint that are made of metal, and a seal member. The tank body has a tubular connection port with a through hole, and an inner space communicating with the connection port. The joint has a male screw portion to be screwed into a female screw hole of the female screw member, a boss portion connected to th...