ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,251, issued on March 25, was assigned to NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY (Kobe, Japan) and SHIMADZU Corp. (Kyoto, Japan).

"Cap attaching/detaching device, and sampling device and pre-processing device provided with same" was invented by Tsutomu Watanabe (Kyoto, Japan), Akari Oda (Kyoto, Japan) and Tomohisa Hasunuma (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cap attaching/detaching device 20 is a device for attaching or detaching a cap 141 in which a screw portion is formed to or from a test tube 14 by rotating the cap 141. A cap grip portion 21 grips the cap 141. A rotation mechanism 22 attaches or detaches the ca...