US Patent Issued to TOPPAN PRINTING on June 30 for "Microfluidic device and sample analysis method" (Japanese Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,846, issued on June 30, was assigned to TOPPAN PRINTING Co. Ltd. (Tokyo).

"Microfluidic device and sample analysis method" was invented by Keisuke Goto (Taito-ku, Japan), Yoichi Makino (Taito-ku, Japan) and Yuta Suzuki (Taito-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microfluidic device including a microwell array having microwells, and a cover member facing the microwell array with a gap between the cover member and the microwell array, and having a flow path formed in the gap. The cover member has a surface facing the microwell array, and the surface has an arithmetic average roughness Ra of 70 nm or less."

The patent was filed o...