Granted Patent
Utility
US 6,072,818 · App. 08/827,252
Semiconductor light emission device
Inventor:
Toshio Hayakawa
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Mar 28, 1997
Inventor
Toshio Hayakawa
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.