Granted Patent
Utility
US 6,496,131 · App. 09/963,063
Capacitor-array D/A converter including a thermometer decoder and a capacitor array
Inventor:
Chikashi Yoshinaga
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Sep 25, 2001
Inventor
Chikashi Yoshinaga
Assignee (at issue)
NEC 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.