Granted Patent
Utility
US 6,219,366 · App. 09/071,159
Semiconductor optical device and method of manufacturing the same
Inventor:
Yuji Furushima
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: May 4, 1998
Inventor
Yuji Furushima
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.