US Patent Issued to TDK on Nov. 4 for "Optical device and optical system" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,401, issued on Nov. 4, was assigned to TDK Corp. (Tokyo).

"Optical device and optical system" was invented by Tetsuya Shibata (Tokyo), Hideaki Fukuzawa (Tokyo), Takashi Kikukawa (Tokyo) and Tomohito Mizuno (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device that includes at least one magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer; a substrate; and a waveguide is provided, wherein the waveguide and the magnetic element are located on or above the substrate, and wherein at least some of light ...