US Patent Issued to MITSUBISHI ELECTRIC on April 21 for "Non-invasive substance analyzer" (Japanese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,621, issued on April 21, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Non-invasive substance analyzer" was invented by Shusaku Hayashi (Tokyo), Koichi Akiyama (Tokyo) and Yuki Tsuda (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The non-invasive substance analyzer includes an optical waveguide circuit, a probe light source, and a light intensity detector. The optical waveguide circuit has a sample mounting region. The probe light source emits probe light. The optical waveguide circuit includes a first optical waveguide to which the probe light is incident, a waveguide-type ring resonator, and a second optical waveguide. The light inte...