Granted Patent
Utility
US 5,780,927 · App. 08/832,677
Semiconductor device with long lifetime
Inventor:
Yukio Nomura
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Apr 9, 1997
Inventor
Yukio Nomura
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.