Granted Patent
Utility
US 6,072,731 · App. 09/178,831
Semiconductor memory circuit
Inventor:
Tomohiro Kitano
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Oct 26, 1998
Inventor
Tomohiro Kitano
Assignee (at issue)
NEC 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.