ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,318, issued on May 12, was assigned to NISSAN CHEMICAL Corp. (Tokyo).
"Cleaning agent composition and cleaning method" was invented by Hiroshi Ogino (Toyama, Japan), Takahisa Okuno (Toyama, Japan), Ryo Karasawa (Toyama, Japan) and Tetsuya Shinjo (Toyama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning agent composition for use in removal of an adhesive residue, the composition containing a quaternary ammonium salt and a solvent, wherein the solvent consists of an organic solvent, and the organic solvent includes an N,N,N',N'-tetra(hydrocarbyl)urea."
The patent was filed on March 11, 2020, under Application No. 17/438,606.
*For furth...