Granted Patent
Utility
US 5,561,005 · App. 08/233,992
Secondary battery having non-aqueous electrolyte
Inventors:
Atsuo Omaru, Shigeru Fujita, Keiichi Yokoyama, Akio Hihara
Patented Case
View Patent ↗
Granted: Oct 1, 1996
Filed: Apr 28, 1994
Inventors
Atsuo Omaru
Shigeru Fujita
Keiichi Yokoyama
Akio Hihara
Assignees (at issue)
SONY GROUP CORPORATION
Mitsui Petrochemical Industries, 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.