ALEXANDRIA, Va., July 3 -- United States Patent no. 12,342,977, issued on July 1, was assigned to NITOMS INC. (Tokyo) and NITTO DENKO Corp. (Ibaraki, Japan).

"Cleaner sheet, layered body of cleaner sheet, cleaning tool, and method for producing cleaner sheet" was invented by Hirofumi Yamada (Tokyo), Hiroshi Nagami (Tokyo), Yosuke Suyama (Tokyo), Tsuneaki Omori (Tokyo), Yoshitake Shigematsu (Tokyo), Yoji Ebisu (Tokyo), Teiji Sakashita (Tokyo) and Mao Suzukawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is, for example, a cleaner sheet including: a cleaning surface that is configured to be brought into sliding contact with a surface of an object to be cleaned. The cleaning surface has uneven...