US Patent Issued to PANASONIC AUTOMOTIVE SYSTEMS on April 7 for "Light guide plate, light guide plate unit, and display device" (Japanese Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,220, issued on April 7, was assigned to PANASONIC AUTOMOTIVE SYSTEMS Co. LTD. (Kanagawa, Japan).

"Light guide plate, light guide plate unit, and display device" was invented by Keiji Sugiyama (Kyoto, Japan), Ken'ichi Kasazumi (Osaka, Japan), Yukihiro Chokyu (Osaka, Japan), Satoshi Kuzuhara (Osaka, Japan) and Kazuhiro Minami (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light guide plate includes a hologram element that is a first hologram element including two or more diffraction cells, and a hologram element that is a second hologram element including a single diffraction cell."

The patent was filed on Sept. 27, 2023, under Applic...