Granted Patent
Utility
US 4,362,956 · App. 06/203,903
Absolute value circuit
Inventors:
Akira Ogasawara, Ryuzo Motoori
Patented Case
View Patent ↗
Granted: Dec 7, 1982
Filed: Nov 4, 1980
Inventors
Akira Ogasawara
Ryuzo Motoori
Assignee (at issue)
Nippon Kogaku K.K.
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.