ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,749, issued on July 8, was assigned to LINTEC Corp. (Tokyo).
"Method of producing an adhesive sheet or a release liner" was invented by Takuma Okubo (Tokyo), Kenji Ohata (Tokyo) and Akihito Yamada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A release liner which makes it difficult for an adhesive layer to impair slidability and makes it easy to exhibit an adhesive force suitably, a method of producing a release liner, an adhesive sheet, and a method of producing an adhesive sheet. A release liner has a surface provided with a ridge portion extending linearly, and on the surface, a plurality of recesses having different depths are randomly f...