Granted Patent
Utility
US 5,592,415 · App. 08/164,780
Non-volatile semiconductor memory
Inventors:
Masataka Kato, Tetsuo Adachi, Toshihiro Tanaka, Toshio Sasaki, Hitoshi Kume, Katsutaka Kimura
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Dec 10, 1993
Inventors
Masataka Kato
Tetsuo Adachi
Toshihiro Tanaka
Toshio Sasaki
Hitoshi Kume
Katsutaka Kimura
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.