Granted Patent
Utility
US 5,641,977 · App. 08/535,941
Compound semiconductor field effect transistor
Inventor:
Mikio Kanamori
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Sep 28, 1995
Inventor
Mikio Kanamori
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.