Granted Patent
Utility
US 6,064,239 · App. 09/097,808
Chopper-type voltage comparator
Inventor:
Takashi Matsuoka
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Jun 16, 1998
Inventor
Takashi Matsuoka
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.