Granted Patent
Utility
US 6,597,607 · App. 10/074,109
Semiconductor memory device and its operation method
Inventor:
Gen Koshita
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Feb 12, 2002
Inventor
Gen Koshita
Assignees (at issue)
NEC CORPORATION
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.