Granted Patent
Utility
US 5,646,953 · App. 08/417,396
Semiconductor laser device
Inventors:
Hiroki Naito, Masahiro Kume
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Apr 5, 1995
Inventors
Hiroki Naito
Masahiro Kume
Assignee (at issue)
Matsushita Electronics 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.