Granted Patent
Utility
US 6,091,528 · App. 08/992,366
Optical communication system of space propagation type
Inventor:
Seiji Kanda
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Dec 17, 1997
Inventor
Seiji Kanda
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.