US Patent Issued to Nippon Kayaku on June 23 for "Head-up display system and optical functional layer for head-up display" (Japanese Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,640, issued on June 23, was assigned to Nippon Kayaku K.K. (Tokyo).

"Head-up display system and optical functional layer for head-up display" was invented by Chihiro Takahashi (Tokyo), Yoshihiko Taira (Tokyo), Mitsunori Nakamura (Tokyo), Tomoyuki Hayasaki (Tokyo) and Yoshiyuki Yahagi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a head-up display system including image display unit for emitting display light showing a display image, and functional glass on which the image cast from the image display unit is projected. The functional glass includes an optical functional layer exhibiting reverse wavelength dis...