Granted Patent
Utility
US 6,446,227 · App. 09/471,285
Semiconductor memory device
Inventor:
Hiroaki Hashimoto
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Dec 23, 1999
Inventor
Hiroaki Hashimoto
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.