Granted Patent
Utility
US 6,690,698 · App. 10/328,011
Semiconductor laser device including arrow structure precisely formed to suppress P-As interdiffusion and Al oxidation
Inventor:
Toshiaki Fukunaga
Patented Case
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Granted: Feb 10, 2004
Filed: Dec 26, 2002
Inventor
Toshiaki Fukunaga
Assignee (at issue)
Fujitsu Limited
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.