Granted Patent
Utility
US 5,469,009 · App. 08/261,381
Turbine generator
Inventors:
Shinichi Wakui, Kazumasa Ide, Haruo Koharagi, Miyoshi Takahashi, Kado Miyakawa, Yasuomi Yagi
Patented Case
View Patent ↗
Granted: Nov 21, 1995
Filed: Jun 15, 1994
Inventors
Shinichi Wakui
Kazumasa Ide
Haruo Koharagi
Miyoshi Takahashi
Kado Miyakawa
Yasuomi Yagi
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.