Granted Patent
Utility
US 4,853,340 · App. 07/176,145
Semiconductor device isolated by a pair of field oxide regions
Inventor:
Michio Komatsu
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Mar 31, 1988
Inventor
Michio Komatsu
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.