Granted Patent
Utility
US 6,788,152 · App. 10/418,174
Amplification circuit and optical communication apparatus provided with the amplification circuit
Inventor:
Kazunori Nishizono
Patented Case
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Granted: Sep 7, 2004
Filed: Apr 18, 2003
Inventor
Kazunori Nishizono
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.