Granted Patent
Utility
US 5,519,721 · App. 08/204,454
Multi-quantum well (MQW) structure laser diode/modulator integrated light source
Inventor:
Shinji Takano
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Mar 2, 1994
Inventor
Shinji Takano
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.