Granted Patent
Utility
US 6,798,804 · App. 09/779,586
Laser apparatus including surface-emitting semiconductor excited with semiconductor laser element, and directly modulated
Inventor:
Toshiro Hayakawa
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Feb 9, 2001
Inventor
Toshiro 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.