Granted Patent
Utility
US 6,495,989 · App. 09/639,000
Battery control apparatus and management method of battery
Inventor:
Yasuhito Eguchi
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Aug 14, 2000
Inventor
Yasuhito Eguchi
Assignee (at issue)
SONY GROUP CORPORATION
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.