Granted Patent
Utility
US 6,345,064 · App. 09/188,204
Semiconductor laser having an improved current blocking layers and method of forming the same
Inventor:
Hiroaki Fujii
Patented Case
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Granted: Feb 5, 2002
Filed: Nov 9, 1998
Inventor
Hiroaki Fujii
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.