ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,773, issued on May 26, was assigned to DIPSOL CHEMICALS Co. LTD. (Tokyo).

"Chemical treatment liquid and method for chemical treatment of target metal material" was invented by Ryoji Iwanaga (Nagareyama, Japan) and Manabu Inoue (Nagareyama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The objective of the present invention is to provide a chemical treatment liquid capable of forming a coating having improved corrosion resistance. The present invention relates to a chemical treatment liquid containing a water-soluble titanium complex ion, a water-soluble vanadium-containing ion, and a fluorine ion, wherein the concentration of the fluorine ion...