Granted Patent
Utility
US 5,543,355 · App. 08/422,853
Method for manufacturing semiconductor laser device having current blocking layers
Inventor:
Mitsuyoshi Ookubo
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Apr 17, 1995
Inventor
Mitsuyoshi Ookubo
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.