Granted Patent
Utility
US 5,895,939 · App. 09/057,631
Silicon carbide field effect transistor with increased avalanche withstand capability
Inventor:
Katsunori Ueno
Patented Case
View Patent ↗
Granted: Apr 20, 1999
Filed: Apr 9, 1998
Inventor
Katsunori Ueno
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.