Granted Patent
Utility
US 5,286,582 · App. 07/786,431
Monaqueous electrolyte secondary battery and process for producing positive active materials
Inventors:
Kensuke Tahara, Hideki Ishikawa, Tsugio Sakai
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Nov 1, 1991
Inventors
Kensuke Tahara
Hideki Ishikawa
Tsugio Sakai
Assignee (at issue)
Seiko Electronic Components 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.