Granted Patent
Utility
US 6,316,909 · App. 09/424,204
Electronic device, control method for electronic device, recharge-rate estimating method for secondary battery, and charging control method for secondary battery
Inventors:
Katsuyuki Honda, Motomu Hayakawa, Ichiro Aoshima, Tsukasa Kosuda
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Jan 5, 2000
Inventors
Katsuyuki Honda
Motomu Hayakawa
Ichiro Aoshima
Tsukasa Kosuda
Assignee (at issue)
SEIKO EPSON 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.