Granted Patent
Utility
US 6,749,963 · App. 09/942,991
Secondary battery utilizing indole compounds
Inventors:
Masato Kurosaki, Toshihiko Nishiyama, Hiroyuki Kamisuki, Gaku Harada, Yuuji Nakagawa, Shinya Yoshida, Tomoki Nobuta, Masaya Mitani
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Aug 31, 2001
Inventors
Masato Kurosaki
Toshihiko Nishiyama
Hiroyuki Kamisuki
Gaku Harada
Yuuji Nakagawa
Shinya Yoshida
Tomoki Nobuta
Masaya Mitani
Assignee (at issue)
NEC TOKIN CORPORATION
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.