US Patent Issued to Resonac Hard Disk on March 3 for "Surface shape measuring apparatus and surface shape measuring method" (Japanese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,062, issued on March 3, was assigned to Resonac Hard Disk Corp. (Chiba, Japan).

"Surface shape measuring apparatus and surface shape measuring method" was invented by Koji Yukimatsu (Tokyo), Teruyoshi Shimizu (Tochigi, Japan), Sunao Kanno (Miyagi, Japan) and Katsuhide Bizen (Miyagi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface shape measuring apparatus for measuring a specular surface includes an illuminator configured to illuminate the specular surface with a first light pattern, an imaging device configured to capture an image of a second light pattern which is light transmitted through the illuminator after the first light patte...