Granted Patent
Utility
US 6,204,639 · App. 09/514,184
Battery charger determining charging conditions depending upon whether a cooling device is provided
Inventors:
Nobuhiro Takano, Yoshio Iimura, Yukihiro Shima, Kenrou Ishimaru
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Feb 28, 2000
Inventors
Nobuhiro Takano
Yoshio Iimura
Yukihiro Shima
Kenrou Ishimaru
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.