Granted Patent
Utility
US 5,478,675 · App. 08/358,491
Secondary battery
Inventor:
Toru Nagaura
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Dec 19, 1994
Inventor
Toru Nagaura
Assignee (at issue)
Hival 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.