Granted Patent
Utility
US 6,166,949 · App. 09/106,344
Nonvolatile memory device and refreshing method
Inventor:
Hitoshi Miwa
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Jun 29, 1998
Inventor
Hitoshi Miwa
Assignee (at issue)
HITACHI, 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.