Granted Patent
Utility
US 6,060,863 · App. 09/072,287
Charge and discharge control circuit and chargeable power supply unit
Inventors:
Atsushi Sakurai, Hiroshi Mukainakano, Masanao Hamaguchi
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: May 4, 1998
Inventors
Atsushi Sakurai
Hiroshi Mukainakano
Masanao Hamaguchi
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.