Granted Patent
Utility
US 6,292,124 · App. 09/498,049
Delta-sigma D/A converter
Inventors:
Yoshihiro Hanada, Akira Toyama
Patented Case
View Patent ↗
Granted: Sep 18, 2001
Filed: Feb 4, 2000
Inventors
Yoshihiro Hanada
Akira Toyama
Assignee (at issue)
Nippon Precision Circuits 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.