Granted Patent
Utility
US 6,608,469 · App. 10/079,463
Device and method for charging a secondary battery
Inventors:
Kazuhito Fukuoka, Nobuo Tanaka, Yoshiro Takeda
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Feb 22, 2002
Inventors
Kazuhito Fukuoka
Nobuo Tanaka
Yoshiro Takeda
Assignee (at issue)
Fujitsu Limited
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.