ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,577, issued on June 2, was assigned to Panasonic Automotive Systems Co. Ltd. (Kanagawa, Japan).

"Cabin illumination device" was invented by Masahiro Jigi (Fukui, Japan), Mayuko Okada (Fukui, Japan), Yuhei Chida (Fukui, Japan) and Kenta Yamazaki (Fukui, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cabin illumination device is provided on a wall surface of a cabin of a vehicle and illuminates the cabin and includes: a light source disposed to emit light away from the wall surface; and a reflective member disposed to intersect a light axis of light emitted by the light source. The reflective member includes a first protruded surface disposed t...