ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,569, issued on April 29, was assigned to NITTO DENKO Corp. (Ibaraki, Japan).
"Adhesive sheet" was invented by Shusaku Ueno (Ibaraki, Japan), Takumi Yutou (Ibaraki, Japan) and Takamasa Hirayama (Ibaraki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a pressure-sensitive adhesive sheet that may be used for the grinding of a hard and brittle substrate in a backgrinding step for the hard and brittle substrate, the pressure-sensitive adhesive sheet being excellent in all of grinding accuracy, low contamination property, productivity, and fixing property. The pressure-sensitive adhesive sheet of the present invention includes a pressure-...