Granted Patent
Utility
US 5,282,160 · App. 07/732,146
Non-volatile semiconductor memory having double gate structure
Inventor:
Yasushi Yamagata
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Jul 18, 1991
Inventor
Yasushi Yamagata
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.