US Patent Issued to KOITO MANUFACTURING on July 14 for "Light-emitting device" (Japanese Inventor)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,684,667, issued on July 14, was assigned to KOITO MANUFACTURING Co. LTD. (Tokyo).

"Light-emitting device" was invented by Shigemi Ishima (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a light-emitting device capable of turning on a plurality of light sources with a simple configuration. The light-emitting device includes n (nless than=2) light sources, n power supply circuits each provided for the n light sources, and a switch provided between a ground-side node of each of the n light sources and a ground. Each power supply circuit generates a power supply voltage for a corresponding one of the n light sources on the basis o...