Granted Patent
Utility
US 6,192,170 · App. 09/451,556
Multiple-wavelength light source and method of controlling oscillation frequencies thereof
Inventor:
Keiro Komatsu
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Dec 1, 1999
Inventor
Keiro Komatsu
Assignee (at issue)
NEC CORPORATION
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.