Granted Patent
Utility
US 6,774,604 · App. 10/201,779
Power control circuit, electronic instrument, and charging method
Inventors:
Kuniaki Matsuda, Shun Oshita
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Jul 25, 2002
Inventors
Kuniaki Matsuda
Shun Oshita
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.