Granted Patent
Utility
US 6,366,582 · App. 09/157,152
Connection switching apparatus, connection switching network control system and connection switching network control method
Inventors:
Takashi Nishikado, Kenji Kawakita, Takanori Miyamoto
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Sep 18, 1998
Inventors
Takashi Nishikado
Kenji Kawakita
Takanori Miyamoto
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.