US Patent Issued to TOKYO OHKA KOGYO on Oct. 20 for "Aqueous cleaning liquid" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,907, issued on Oct. 20, was assigned to TOKYO OHKA KOGYO Co. LTD. (Kanagawa, Japan).

"Aqueous cleaning liquid" was invented by Takumi Namiki (Kanagawa, Japan), Shinji Kumada (Kanagawa, Japan), Eita Suga (Kanagawa, Japan), Kenta Kimura (Kanagawa, Japan) and Jun Kondo (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aqueous cleaning liquid containing hydrofluoric acid, at least one kind of triazole compound selected from the group consisting of triazole and a triazole derivative, and a nonionic surfactant."

The patent was filed on Feb. 6, 2024, under Application No. 18/433,986.

*For further information, including images, charts and...