US Patent Issued to Yokogawa Electric on Jan. 13 for "Dielectrophoresis device" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,730, issued on Jan. 13, was assigned to Yokogawa Electric Corp. (Tokyo).

"Dielectrophoresis device" was invented by Nobuhiko Kanbara (Tokyo) and Takashi Aoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a variable conductivity film exhibiting a large change in conductivity so as to facilitate movement or sorting of micro-materials. Silicon semiconductor layers disposed between a first electrode and a second electrode include: a first silicon layer of a first conductivity type with a first impurity concentration; a second silicon layer of a second conductivity type different from the first conductivity type, contacting the first ...