Granted Patent
Utility
US 6,416,902 · App. 09/065,614
Non-aqueous lithium ion secondary battery
Inventor:
Tsutomu Miyasaka
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Apr 24, 1998
Inventor
Tsutomu Miyasaka
Assignee (at issue)
Fujitsu Limited
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.