Granted Patent
Utility
US 6,114,839 · App. 09/190,268
Battery charging apparatus with error detection
Inventors:
Nobuhiro Takano, Kenrou Ishimaru, Toshio Mizoguchi, Shigeru MORIYAMA, Shigeru Shinohara
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Nov 13, 1998
Inventors
Nobuhiro Takano
Kenrou Ishimaru
Toshio Mizoguchi
Shigeru MORIYAMA
Shigeru Shinohara
Assignee (at issue)
Hitachi Koki 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.