Granted Patent
Utility
US 6,016,273 · App. 08/720,060
Nonvolatile semiconductor memory device
Inventors:
Koichi Seki, Takeshi Wada, Tadashi Muto, Kazuyoshi Shoji, Yasurou Kubota, Hitoshi Kume
Patented Case
View Patent ↗
Granted: Jan 18, 2000
Filed: Sep 27, 1996
Inventors
Koichi Seki
Takeshi Wada
Tadashi Muto
Kazuyoshi Shoji
Yasurou Kubota
Hitoshi Kume
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.