Granted Patent
Utility
US 5,426,331 · App. 08/210,176
Semiconductor device with multi-layered heat-resistive electrode in titanium-titanium nitride-plantinum-gold system
Inventor:
Hiroshi Tsuda
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Mar 17, 1994
Inventor
Hiroshi Tsuda
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.