Granted Patent
Utility
US 5,652,159 · App. 08/548,559
Thin film transistor having improved switching characteristic
Inventor:
Naoto Hirano
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Oct 26, 1995
Inventor
Naoto Hirano
Assignee (at issue)
NEC 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.