ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,182, issued on Feb. 17, was assigned to Tokyo Electron Ltd. (Tokyo).

"Heating device and control method of led" was invented by Shigeru Kasai (Yamanashi, Japan) and Yoshiyuki Morifuji (Yamanashi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heating device using an LED is provided. The heating device includes a heater for heating a target with LED light, an LED controller for controlling power supplied to the LED such that a temperature of the target is adjusted with the power being in the range where a current thereof does not exceed an allowable current Imax, a correction unit for correcting Imax, and a voltage measurement unit for measur...