Granted Patent
Utility
US 5,264,378 · App. 07/853,044
Method for making a conductivity modulation MOSFET
Inventor:
Kenya Sakurai
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Mar 18, 1992
Inventor
Kenya Sakurai
Assignee (at issue)
FUJI ELECTRIC CO., LTD.
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.