Granted Patent
Utility
US 6,772,051 · App. 10/190,683
Power plant operation control system and a power plant maintaining and managing method
Inventors:
Naoyuki Nagafuchi, Yasushi Iwai, Hiraku Ikeda
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Jul 9, 2002
Inventors
Naoyuki Nagafuchi
Yasushi Iwai
Hiraku Ikeda
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.