Granted Patent
Utility
US 6,334,756 · App. 09/506,811
Turbine rotor, cooling method of turbine blades of the rotor and gas turbine with the rotor
Inventors:
Ryo Akiyama, Shinya Marushima, Manabu Matsumoto
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Feb 18, 2000
Inventors
Ryo Akiyama
Shinya Marushima
Manabu Matsumoto
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.