US Patent Issued to NTT on Sept. 8 for "Coating film evaluation structure and evaluation method" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,959, issued on Sept. 8, was assigned to NTT INC. (Tokyo).

"Coating film evaluation structure and evaluation method" was invented by Azusa Ishii (Tokyo), Shingo Mineta (Tokyo) and Soichi Oka (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coating film evaluation structure includes a laminate including a first sheet, a second sheet, and a third sheet which are laminated. The second sheet is disposed on the first sheet, and the third sheet is disposed on the second sheet. In the laminate, the area of each sheet gradually reduces in the lamination direction, and a stepped portion is provided at an end portion. The coating film to be evaluated an...