Granted Patent
Utility
US 6,795,322 · App. 09/469,619
Power supply with uninterruptible function
Inventors:
Nobuyuki Aihara, Takeshi Onaka, Norikazu Tokunaga, Kenichi Onda, Satoru Masuyama, Shigekazu Zemba
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Dec 22, 1999
Inventors
Nobuyuki Aihara
Takeshi Onaka
Norikazu Tokunaga
Kenichi Onda
Satoru Masuyama
Shigekazu Zemba
Assignees (at issue)
HITACHI, LTD.
Hitachi Computer Peripherals Co., 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.