ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,055, issued on May 20, was assigned to Sintokogio Ltd. (Aichi, Japan) and TOHOKU UNIVERSITY (Miyagi, Japan).

"Force sensor" was invented by Yoshikane Tanaami (Nagoya, Japan), Miyuki Hayashi (Nagoya, Japan), Yoshiaki Kanamori (Sendai, Japan) and Taiyu Okatani (Sendai, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A force sensor is provided, the force sensor including: a first substrate; a metasurface pattern provided on a principal surface; a protective layer covering the metasurface pattern; a second substrate provided so as to face the first substrate; a reflective layer provided on a second principal surface; and a spacer defining a spacing...