Granted Patent
Utility
US 6,721,168 · App. 09/897,726
Electric double-layer capacitor and carbon material therefor
Inventors:
Makoto Takeuchi, Katsumi Koike, Akinori Mogami, Takamichi Maruyama
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Jul 2, 2001
Inventors
Makoto Takeuchi
Katsumi Koike
Akinori Mogami
Takamichi Maruyama
Assignee (at issue)
JEOL 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.