Granted Patent
Utility
US 6,614,174 · App. 09/711,880
Display apparatus using organic electroluminescent element and manufacturing method thereof
Inventors:
Tetsuo Urabe, Tatsuya Sasaoka, Mitsunobu Sekiya, Machio Yamagishi
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Nov 15, 2000
Inventors
Tetsuo Urabe
Tatsuya Sasaoka
Mitsunobu Sekiya
Machio Yamagishi
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.