Granted Patent
Utility
US 4,821,273 · App. 07/038,660
Wavelength/output power stabilizing apparatus of semiconductor laser
Inventor:
Nobuo Hori
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Apr 15, 1987
Inventor
Nobuo Hori
Assignee (at issue)
Tokyo Kogaku Kikai Kabushiki Kaisha
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.