Granted Patent
Utility
US 6,400,601 · App. 09/602,178
Nonvolatile semiconductor memory device
Inventors:
Naoaki Sudo, Satoshi Katagiri
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jun 22, 2000
Inventors
Naoaki Sudo
Satoshi Katagiri
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.