Granted Patent
Utility
US 5,691,552 · App. 08/547,629
Nonvolatile semiconductor memory formed with silicon-on-insulator structure
Inventor:
Kenichi Oyama
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Oct 24, 1995
Inventor
Kenichi Oyama
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.