Granted Patent
Utility
US 6,608,577 · App. 09/888,436
Digital/analog converter including MOS transistor type current switches
Inventor:
Kouichi Nishimura
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Jun 26, 2001
Inventor
Kouichi Nishimura
Assignee (at issue)
NEC Electronics 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.