Granted Patent
Utility
US 4,996,639 · App. 07/276,970
Data processor including an A/D converter for converting a plurality of analog input channels into digital data
Inventors:
Satomi Ishimoto, Osamu Matsushima, Hajime Sakuma
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Nov 28, 1988
Inventors
Satomi Ishimoto
Osamu Matsushima
Hajime Sakuma
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.