Granted Patent
Utility
US 6,489,910 · App. 09/890,517
Oversampling circuit and digital/analog converter
Inventor:
Yukio Koyanagi
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Jul 31, 2001
Inventor
Yukio Koyanagi
Assignee (at issue)
Yasue Sakai
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.