Granted Patent
Utility
US 5,043,818 · App. 07/398,618
Imaging period controllable solid-stage image pickup device comprising a drain shift register
Inventor:
Toshimichi Yokoyama
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Aug 25, 1989
Inventor
Toshimichi Yokoyama
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.