ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,024, issued on Feb. 18, was assigned to MITSUBISHI PENCIL COMPANY Ltd. (Tokyo).
"Writing implement" was invented by Hirotake Izawa (Tokyo), Toshimi Kamitani (Tokyo), Chihiro Mochizuki (Tokyo) and Kaito Tsukada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a writing implement that maximizes the effective area of a viewer portion allowing visual recognition in the writing direction and that facilitates writing at a high level, at the same time. This writing implement is a writing implement A, including for example, a pen tip 20 that feeds ink from a writing implement body 10 and has a viewer portion 33 allowing visual recognition i...