Granted Patent
Utility
US 6,512,714 · App. 09/942,558
Semiconductor memory device equipped with dummy cells
Inventors:
Satoru Hanzawa, Takeshi Sakata
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Aug 31, 2001
Inventors
Satoru Hanzawa
Takeshi Sakata
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.