Granted Patent
Utility
US 6,400,622 · App. 09/983,076
Semiconductor memory device
Inventor:
Atsushi Fujiwara
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Oct 23, 2001
Inventor
Atsushi Fujiwara
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.