US Patent Issued to TDK on July 14 for "Electro-optical device" (Chinese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,338, issued on July 14, was assigned to TDK Corp. (Tokyo).

"Electro-optical device" was invented by Kenji Nagase (Hong Kong), Hiroshi Take (Hong Kong) and Shingo Miyata (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electro-optical device, including: a substrate; an optical waveguide composed of an electro-optic material film formed in a ridge shape on the substrate; a buffer layer configured to cover the optical waveguide; and an upper electrode provided on the optical waveguide through the buffer layer, and the buffer layer has a recess on the upper electrode side above the optical waveguide. Accordingly, the propagation loss of ligh...