Granted Patent
Utility
US 6,677,810 · App. 10/068,358
Reference voltage circuit
Inventor:
Atsuo Fukui
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Feb 7, 2002
Inventor
Atsuo Fukui
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.