Granted Patent
Utility
US 5,353,294 · App. 07/954,157
Semiconductor laser device and semiconductor laser module
Inventor:
Kazuo Shigeno
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Sep 30, 1992
Inventor
Kazuo Shigeno
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.