Granted Patent
Utility
US 4,885,624 · App. 07/265,193
Stacked metal-insulator semiconductor device
Inventor:
Takeshi Okazawa
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Oct 31, 1988
Inventor
Takeshi Okazawa
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.