Granted Patent
Utility
US 6,677,811 · App. 10/002,673
Power supply circuit and RF transponder IC
Inventor:
Joji Hayashi
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Oct 31, 2001
Inventor
Joji Hayashi
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.