US Patent Issued to HOYA LENS THAILAND on July 14 for "Electrochromic element and lens for spectacles" (Japanese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,681,331, issued on July 14, was assigned to HOYA LENS THAILAND LTD. (Pathumthani, Thailand).

"Electrochromic element and lens for spectacles" was invented by Hironori Kawakami (Tokyo) and Shigeki Miyazaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electrochromic element in which a decrease in responsiveness is minimized by making a side of the electrochromic element have gas barrier properties, and a lens for spectacles, the electrochromic element including a pair of electrode layers and an electrochromic layer arranged between the electrode layers, wherein a barrier layer surrounding the electrochromic layer is provided."

The patent was ...