Granted Patent
Utility
US 6,809,946 · App. 10/443,645
Semiconductor memory device and method of controlling the same
Inventors:
Hiroki Fujisawa, Hideyuki Yokou
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: May 22, 2003
Inventors
Hiroki Fujisawa
Hideyuki Yokou
Assignees (at issue)
ELPIDA MEMORY, INC.
HITACHI, LTD.
Hitachi Ulsi Systems Co., 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.