Granted Patent
Utility
US 6,605,839 · App. 10/303,726
Multi-level type nonvolatile semiconductor memory device
Inventors:
Hirotomo Miura, Yasuo Sato
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Nov 26, 2002
Inventors
Hirotomo Miura
Yasuo Sato
Assignee (at issue)
NIPPON STEEL CORPORATION
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.