Granted Patent
Utility
US 5,886,474 · App. 08/726,831
Luminescent device having drive-current controlled pixels and method therefor
Inventors:
Nobutoshi Asai, Yasunori Kijima
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Oct 8, 1996
Inventors
Nobutoshi Asai
Yasunori Kijima
Assignee (at issue)
SONY GROUP CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.