Granted Patent
Utility
US 6,683,813 · App. 10/315,938
Semiconductor memory device equipped with dummy cells
Inventors:
Satoru Hanzawa, Takeshi Sakata
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Dec 11, 2002
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.