Granted Patent
Utility
US 6,739,764 · App. 10/156,925
Optical module and optical communication system
Inventors:
Tatemi Ido, Kouji Yoshida
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: May 30, 2002
Inventors
Tatemi Ido
Kouji Yoshida
Assignee (at issue)
HITACHI, 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.