Granted Patent
Utility
US 5,583,353 · App. 08/590,107
Heterojunction field effect transistor
Inventor:
Hiroshi Mizutani
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Nov 6, 1995
Inventor
Hiroshi Mizutani
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.