ALEXANDRIA, Va., June 2 -- United States Patent no. 12,645,104, issued on June 2, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Photonic crystal element" was invented by Jungo Kondo (Miyoshi-City, Japan), Makoto Iwai (Kasugai-City, Japan), Keiichiro Asai (Nagoya-City, Japan), Tomoyoshi Tai (Inazawa-City, Japan) and Kentaro Tani (Nagoya-City, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a photonic crystal element, which shows small delay of an electric signal, shows a small propagation loss, and has uniform characteristics over its entirety. The photonic crystal element includes a two-dimensional photonic crystal slab having holes periodically formed in a substrate made of a cerami...