US Patent Issued to Hitachi High-Tech on Oct. 20 for "High-voltage insulating structure, charged particle gun, and charged particle beam device" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,819, issued on Oct. 20, was assigned to Hitachi High-Tech Corp. (Tokyo).

"High-voltage insulating structure, charged particle gun, and charged particle beam device" was invented by Yasuchika Suzuki (Tokyo), Shinichi Kato (Tokyo), Takashi Ohnishi (Tokyo) and Shunichi Watanabe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-voltage insulating structure in which an electrically conductive part, to which a high voltage is applied and which extends in an axial direction, is surrounded by an insulator. An electrical resistivity of the third insulator is smaller than electrical resistivities of the first and second insulators. As for a thickne...