Granted Patent
Utility
US 6,524,728 · App. 09/705,192
Organic electroluminescent device
Inventors:
Yasunori Kijima, Tetsuo Shibanuma, Nobutoshi Asai, Shinichiro Tamura
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Nov 2, 2000
Inventors
Yasunori Kijima
Tetsuo Shibanuma
Nobutoshi Asai
Shinichiro Tamura
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.