Granted Patent
Utility
US 6,489,649 · App. 08/993,094
Semiconductor device having nonvolatile memory and method of manufacturing thereof
Inventors:
Takashi Kobayashi, Atsuko Katayama
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Dec 18, 1997
Inventors
Takashi Kobayashi
Atsuko Katayama
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.