Granted Patent
Utility
US 4,754,435 · App. 06/829,578
Semiconductor device having a memory circuit
Inventor:
Ryoichi Takamatsu
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Feb 14, 1986
Inventor
Ryoichi Takamatsu
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.