Granted Patent
Utility
US 6,809,989 · App. 10/258,334
Semiconductor storage device
Inventors:
Hiroyuki Takahashi, Masatoshi Sonoda
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Oct 21, 2002
Inventors
Hiroyuki Takahashi
Masatoshi Sonoda
Assignee (at issue)
NEC Electronics 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.