Granted Patent
Utility
US 6,233,174 · App. 09/539,633
Non volatile semiconductor, memory
Inventors:
Tetsuya Tsujikawa, Atsushi Nozoe, Michitaro Kanamitsu, Shoji Kubono, Eiji Yamamoto, Ken Matsubara
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Mar 30, 2000
Inventors
Tetsuya Tsujikawa
Atsushi Nozoe
Michitaro Kanamitsu
Shoji Kubono
Eiji Yamamoto
Ken Matsubara
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.