Granted Patent
Utility
US 6,562,649 · App. 10/227,412
Compound semiconductor light emitting device and process for producing the same
Inventors:
Tsutomu Munakata, Yasumasa Kashima
Patented Case
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Granted: May 13, 2003
Filed: Aug 26, 2002
Inventors
Tsutomu Munakata
Yasumasa Kashima
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.