ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,580, issued on Oct. 14, was assigned to DEXERIALS Corp. (Tochigi, Japan).
"Reel member and adhesive film winding body" was invented by Kazunori Hamazaki (Tochigi, Japan), Hiroyuki Nakamura (Tochigi, Japan) and Tomohisa Kawai (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a reel member and an adhesive film winding body capable of suppressing sticking and blocking and preventing falling off. A real member includes: a winding core 3 around which an adhesive film 2 is to be wound; a pair of reel flanges 4 provided on both sides of the winding core 3; and a plurality of ribs 5 formed on an inner surface 4a of the reel flange 4...