Japanese restaurant chain operator Saizeriya Co. said Friday it has "developed" a face mask for use when eating and drinking, possibly a boon to eateries around the world hit hard by social distancing necessitated by the coronavirus.The method unveiled by the Italian restaurant chain, in a YouTube video and a press conference attended by President Issei Horino, involves using origami paper-folding craft-like technique to combine an existing mask and a regular paper napkin.Related coverage:Japan reports 1,580 new virus cases, hits daily recordREAD FULL ARTICLE