ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,458, issued on March 18, was assigned to DISCO Corp. (Tokyo).
"Dryness detection method and dryness detection apparatus" was invented by Yoshinobu Saito (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dryness detection method of detecting dryness of a liquid resin composition containing a solvent. The dryness detection method includes a wavelength selection step of selecting a light absorption wavelength of the solvent, a light source selection step of selecting a light source that emits light including light of the selected wavelength, a light receiving step of applying the light that has been emitted from the light source to the liquid re...