ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,484,743, issued on Dec. 2, was assigned to Canon K.K. (Tokyo).
"Cleaning wiper blade" was invented by Shota Segawa (Shizuoka, Japan), Takehiko Aoyama (Shizuoka, Japan), Masanori Yokoyama (Shizuoka, Japan), Hidekazu Matsuda (Shizuoka, Japan), Syoji Inoue (Shizuoka, Japan) and Arihiro Yamamoto (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning wiper blade comprises a hand grip part and an elastic part. The elastic part comprises a polyurethane. The polyurethane comprises a reactant of a composition including an isocyanate compound which includes diisocyanate and polyfunctional isocyanate, and an alcohol which includes polyfunctional...