ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,477, issued on Jan. 27, was assigned to FURUKAWA ELECTRIC Co. LTD. (Tokyo).
"Hollow needle" was invented by Atsushi Himura (Tokyo), Takeshi Yagi (Tokyo), Kazutaka Nara (Tokyo), Katsuki Suematsu (Tokyo) and Tsunenori Arai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hollow needle includes a needle body made of an electrically conductive material, forming a cylindrical shape, and including a shaft part, a tip part connected with the shaft part, and an opening for discharging or drawing in a liquid in which a cavity communicating between the shaft part and the opening is formed. Also included is an annular insulating film made of an electric...