Granted Patent
Utility
US 5,636,045 · App. 08/489,939
Photonic switching method and photonic switch utilizing same
Inventors:
Hideaki Okayama, Masato Kawahara, Saeko Oshiba, Yoshio Kawai
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Jun 13, 1995
Inventors
Hideaki Okayama
Masato Kawahara
Saeko Oshiba
Yoshio Kawai
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.