Granted Patent
Utility
US 5,889,712 · App. 08/027,348
Semiconductor memory device
Inventor:
Tadahiko Sugibayashi
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Feb 20, 1998
Inventor
Tadahiko Sugibayashi
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.