US Patent Issued to DEXERIALS on May 13 for "Upper blade roller, slitting device, slitting method, and laminated tape" (Japanese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,498, issued on May 13, was assigned to DEXERIALS Corp. (Shimotsuke, Japan).

"Upper blade roller, slitting device, slitting method, and laminated tape" was invented by Hiroyuki Nakamura (Utsunomiya, Japan), Yoshikatsu Kodaira (Kanuma, Japan) and Tomohisa Kawai (Kawachi-gun, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A laminated film including an adhesive layer peelably laminated on a base film is shear cut using an upper roller including specific upper blades arranged at a pitch of 0.5 mm or less for slitting. The upper blade includes one side surface constituting a blade edge being a flat surface and the other side surface having a first r...