Granted Patent
Utility
US 6,563,234 · App. 09/774,683
Power system stabilization system and method employing a rechargeable battery system
Inventors:
Yoshihiro Hasegawa, Masatoshi Okubo, Tetsuo Sasaki
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Feb 1, 2001
Inventors
Yoshihiro Hasegawa
Masatoshi Okubo
Tetsuo Sasaki
Assignees (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
The Kansai Electric Power Co., Inc.
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.