ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,663, issued on Sept. 15, was assigned to KYOTO UNIVERSITY (Kyoto, Japan) and OSAKA UNIVERSITY (Osaka, Japan).

"Bile duct chip and use thereof" was invented by Kazuo Takayama (Kyoto, Japan), Yusuke Torisawa (Kyoto, Japan), Kenji Osafune (Kyoto, Japan), Maki Kotaka (Kyoto, Japan), Sayaka Deguchi (Kyoto, Japan) and Hiroyuki Mizuguchi (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a bile duct chip that is a bile duct chip (200) including a membrane (210) through which substances are movable from one surface to the other surface, a first substrate (221) having a recessed part that forms a first flow path (220), and a seco...